Catalytic steam reforming of bioethanol is an endothermic reaction for hydrogen production with high tendency of complete conversion at high temperature, but the catalyst is susceptible to deactivation due to the sintering of based metal and carbon deposition. MgO-doped/acid modified metakaolin supported nickel-based catalysts (with 5-25wt% nickel loading) were synthesized using wetness impregnation method and characterized. The physicochemical properties of the catalysts were examined using XRD, BET, SEM-EDX, XRF, FTIR and TG/DTA techniques. XRD patterns show the presence of nickel oxide, spinel MgAl2O4, NiAl2O4 in all the calcined catalyst samples, via characteristic peaks. Most of the crystallite sizes of the NiO particles in the synthesized catalysts were within 20.1-38nm, far less than the size effect threshold of 100nm, except CAT II, with crystallite size of 132.5nm, which could be attributed to the high tendency of NiO particles to agglomerate with MgO. Based on BET results, all the synthesized catalysts have pore diameter in the mesopore diameter range. SEM-EDX results show that there is nuclear interaction among MgO, NiO and Al2O3, as confirmed by XRD and XRF analyses. The FTIR analyses show that nickel phyllosilicate bond, Si-O-Al stretching vibration, OH stretching and metal-oxygen bond exist within the synthesized catalysts. The formation of MgAl2O4 and NiAl2O4 spinel phases is due to the interaction of active oxide components with acid modified metakaolin and MgO, which contributes to the catalyst thermal stability, as confirmed by TG/DTA analyses. These spinel structures would contribute to the catalysts’ activity and selectivity, as their structures could remain unchanged under severe reaction conditions. The mesoporous structure of the synthesized catalysts would aid the reactant gases to adsorb on its surface and easy diffusion through the catalyst’s channel after reaction. With better interaction among the support, promoter and based metal in the synthesized catalysts and available surface OH group, the formation and conversion of adsorbed formate intermediate during steam reforming reactions would be facilitated, and in turn reduce carbon deposition.
| Published in | Journal of Energy, Environmental & Chemical Engineering (Volume 7, Issue 3) |
| DOI | 10.11648/j.jeece.20220703.12 |
| Page(s) | 54-65 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Synthesis, Catalyst, Impregnation, Physicochemical, Reforming, Carbon Deposition
| [1] | Rosen, M. A. and Koohi-Fayegh, S. (2016). The prospects for hydrogen as an energy carrier: an overview of hydrogen energy and hydrogen energy systems. Energy Ecol. Environ. 1 (1): 10-29. Doi: 10.1007/540974-016-0005-2. |
| [2] | Dhanala, V., Maity, S. K. and Shee, D. (2015). Roles of supports (γ-Al2O3. SiO2, ZrO2) and performance of metals (Ni, Co, Mo) in steam reforming of isobutanol, RSC Advances 5, 52522. Doi: 10.1037/c5ra35589. |
| [3] | Sadooghi, P. and Rauch, R. (2014). Experimental and modelling study of catalytic steam reforming of methane mixture with propylene in a packed bed reactor. International Journal of Heat and Mass Transfer 78, 515-521. |
| [4] | Jiang, D., Fang, Z., Chin, S., Tian, X. and Su, T. (2016). Biohydrogen production from hydrolysates of selected tropical biomass wastes with clostridium butyricum, Scientific Reports 6: 27205. Doi: 10.1038/srep27205. |
| [5] | Sathyanarayanan, S. V. (2014). Biological hydrogen production from lignocellulosic biomass in an up-flow anaerobic sludge blanket reactor using mixed microbial cultures. Electronic Theses and Dissertations paper 5088. |
| [6] | Wang, Y., Zou, S., and Cai, W. B. (2015). Recent Advances on Electro-oxidation of ethanol on Pt- and Pd-based catalysts from reaction mechanisms to catalytic materials. Catalysts 5, 1507–1534. |
| [7] | Gaudillere, C., González, J. J., Chica, A. and Serra, J. M. (2017). YSZ monoliths promoted with Co as catalysts for the production of H2 by steam reforming of ethanol. Applied Catalysis A: General 538, 165–173. |
| [8] | Moller, K. T., Jensen, T. R., Akiba, E. and Li, H. (2017). Hydrogen- A sustainable energy carrier. Progress in Natural Science: Materials International 27, 34-40. |
| [9] | Isah, N. A., Eterigho, E. J., Olutoye, M. A., Garba, M. U. and Okokpujie, I. P. (2020). Development and test performance of heterogeneous catalysts on steam reforming of bioethanol for renewable hydrogen systhesis: A review. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 73 (1), 69-108. https://doi.org/ 10.37934/ arfmts.73. 1.69108. |
| [10] | Nabgan, W., Tuan Abdullah, T. A., Mat, R., Nabgan, B., Gambo, Y., and Triwahyono, S. (2016). Influence of Ni to Co ratio supported on ZrO2 catalysts in phenol steam reforming for hydrogen production. International Journal of Hydrogen Energy 41, 22922–22931. |
| [11] | Dan, M., Mihet, M., Lazar, M. D., and Muresan, L. M. (2016). Promoted alumina supported Ni catalyst for ethanol steam reforming. Studia Ubb Chemia, LXI, 2, 137-154. |
| [12] | Konsolakis, M., Loakimidis, Z., Kraia, T. and Marnellos, G. E. (2016). Hydrogen production by ethanol steam reforming over CeO2 supported transition metal (Fe-Co, Ni, Cu) catalysts: Insight into the structure –activity relationship. Catalysts 6, 39. |
| [13] | Thyssen, V. V, Maia, T. A. and Assaf, E. M. (2015). Cu and Ni catalysts supported on γ-Al2O3 and SiO2 assessed in glycerol steam reforming reaction. Journal of the Brazilian Chemical Society, vol. 26, no. 1, 22-31. |
| [14] | Pavlova, S., Fedorova, Y., Ishchenko, A., Melgunov, M., Melggunova, E., Simonov, M., Rgov, V., Kniger, T., Sadykov, V. and Roger, A. (2018). Ni-containing catalysts based on ordered mesoporous MgO-Al2O3 for methane reforming. Catal. Sustain. Energy 5, 59-66. https://doi.org/10.1515/cse.2018-0008. |
| [15] | Mezalira, D. S, Probst, L. D., Pronier, S., Batonneau, Y., Batiot-Dupeyrat, C. (2011). Decomposition of ethanol over Ni/Al2O3 catalysts to produce hydrogen and carbon nanostructured materials. Journal of Molecular Catalysis A: Chemical, 340, 15-23. DOI: 10.1016/j.molcata.2011.03.013. |
| [16] | Lu, M., Xiong, Z., Fang, K., Li, J., Li, X. and Li, T. (2020). Effect of promoters on steam reforming of toluene over a Ni-based catalyst supported on coal gangue ash. ACS Omega 5, 41, 26335-26346. https://doi.org/10.1021/acsomega.oc01197. |
| [17] | Al-Swai, B. M., Osman, N. B. and Abdullahi, B. (2017). Catalytic performance of Ni/MgO catalyst in methane dry reforming. AIP Conference Proceedings 1691, 020028. Retrieved on 28/10/2019 from https://aip.scitation.org/doi/pdf/10.1063/1.5005361 |
| [18] | Cifuentes, B., Figueredo, M., and Cobo, M. (2017). Response surface methodology and aspen plus integration for the simulation of the catalytic steam reforming of ethanol. Catalysts, 7 (1), 15. https://doi.org/10.3390/catal7010015. |
| [19] | Grzybek, G., Grehik, M., Tarach, K., Pyra, K., Slowik, G., Rotko, M. and Gora-Marek, K. (2020). Bioethanol steam reforming over cobalt-containing USY and ZSM-5 commercial zeolite catalysts. Frontiers in Materials 7: 597528. Doi. 10.3389/fmats.2020.597528. |
| [20] | Lee, S., Shin, S., Baek, H., Choi, Y., Hyun, K., Seo, M., Kim, K., Koh, D., Kim, H. and Choi, M. (2020). Dynamic metal-polymer interaction for the design of chemoselective and long-lived hydrogenation catalysts. Science Advances 6: eabb7369. Doi: 10.1126/sciadv.abb7369. |
| [21] | Taher, N. M., Mahmoudi, M., and Sajjadivand, S. S. (2017). Cobalt catalysts preparation and characterization over alumina supported for Fischer Tropsch synthesis. Biofuel Eng 2, 51-61. Retrieved on 18/1/2019 from https://doi.org/10.1515/bfuel.2017-0004. |
| [22] | Zhang, Z., Liu, L., Shen, B. and Wu, C, (2018). Preparation, modification and development of Ni-based catalysts for catalytic reforming of tar produced from biomass gasification. Renewable and Sustainable Energy Review, 94, 1086-1109. https://doi.org/10.1016/jirser.2018.07.010 |
| [23] | Rahayu, E. S., Subiyanto, G., Imanuddin, A., Wiranto, Nadina, S., Ristiani, R., Suhermina, and Yuniarti, E. (2018). Kaolin as a source of silica and alumina for synthesis of zeolite Y and amorphous silica alumina. MATEC Web of Conferences 156, 05002. |
| [24] | Zhang, S., Liu, Q., Gao, F., Li, X., Liu, C., Li, H., Boyd, S. A., Johnson, C. T. and Teppen, B. J. (2017). Mechanism association with kaolinite intercalation with urea: combination of infrared spectroscopy and molecular dynamics simulation studies. Journal of Phys. Chem. Nanomater Interfaces 121 (1), 402-409. |
| [25] | Worasith, N., Goodman, B. A. and Deng, W. (2018). Formation of new low field signals in the EPR spectra of kaolin minerals. The Journal of Applied Science 17 (1), 12-18. |
| [26] | Al-Fatesh, A. S., Kasim, S. O., Ibrahim, A. A., Fakeeha, A. H., Abasaeed, A. A., Alrashedd, R., Ashamari, R. and Bagabas, A. (2019). Combined magnesia, ceria and nickel catalyst supported over γ-alumnia doped with titania for dry reorming of methane. Catalysts 9, 188. Retrieved on 30/10/19 from https:// www.mdpi.com/journal/catalysts. |
| [27] | Olivares, A. C. V., Gomez, M. F., Barroso, M. N. and Abello, M. C. (2018). Ni-supported catalysts for ethanol steam reforming: effect of the solvent and metallic precursor in catalyst preparation. International Journal of Industrial Chemistry 9, Issue 1, 61-73. |
| [28] | Khairudin, N. F., Sukri, M. F. F., Khavarian, M. and Mohammed, A. (2018). Understanding the performance and mechanism of Mg-containing oxides as support catalysts in the thermal dry reforming of methane. Beilstein Journal of Nanotechnology 8, 1162-1183. |
| [29] | Arevalo, J. D., Martinez, A., Varges, J. and Cordoba, I. F. (2018). Hydrogen production and purification of bioethanol steam reforming and preferential oxidation of CO. TECCIENCA, 13 (25), 55-64. |
| [30] | Schmtt, C. C, Reolon, M. B. G., Zimmermann, M., Raffelt, K., Grunwaldt, J. and Dahmen, N. (2018). Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil. Catalysts, 449. Retrieved on 28/11/2019 from www.mdpi. com/ journal/catalysts |
| [31] | Dewajani, H., Rochmadi, Purwono, S., and Budiman, A. (2016). Effect of modification ZSM-5 catalyst in upgrading quality of organic liquid product derived from catalyst cracking of Indonesian nyamplung oil (calopyllum inophyllum). AIP Conference Proceedings 1755. 050002-1-050002-6. |
| [32] | Blanco, P. H., Wu, C., Onwudili, J. A., and Williams, P. T. (2013). Characteirization and evaluation of Ni/ SiO2 catalysts for hydrogen production and tar reduction from catalytic steam reforming pyrolysis-reforming of refuse derived fuel. Applied Catalysis B: Environmental, 134-13, 238-250. https://doi.org/10.1016/ j.apcatb.2013.01.016. |
| [33] | Gaaz, T. S., Sulong, A. B., Kadhum, A. AA. H, Nassir, M. H. and Al-Amiery, A. A. (2016). Impact of surfuric acid treatment of halloysite on physic-chemic property modification. Materials (Basel), 9 (8): 620. Doi: 10.3390/ma9080620. |
| [34] | Akbarzadeh, O., Zabidi, N. A. M., Abdulwahab, Y., Hamizi, N. A,, Chowdhury, Z. Z, Merican, Z. M. A., Ab-Rahman, M., Akhter, S., Shalauddin, M. and Johan, M. R. (2018). Effect of cobalt loading, particle size, and calcination condition on Co/CNT catalyst performance in Fischer-Tropsch reactions. Symmetry 11, 7, 1-18. |
| [35] | Derekaya, F. B. and Kilinc, Y. S. (2018). The CO methanation over the Rh and Ru promoted NiO-CeO2-ZrO2 catalysts. Journal of Science 31 (4), 1064-1077. |
| [36] | Wang, F. Hao, G., Guo, Y., Ma, X. and Yang, L. (2017). Solvent effect on preparation of Pd-based catalysts: Influence on properties of palladium and its catalytic activity for benzyl alcohol oxidation. Open Journal of Metal 7, 59-68. |
| [37] | Qoniah, I., Prasetyoko, D., Bahruji, H., Triwahyono, S., Jalil, A. A., Suprapto, Hartiti, Purbaningtias, T. E. (2015). Direct synthesis of mesoporous aluminosilicates from Indonesian kaolin clay without calcination. Applied Clay Science 118, 290-294. |
| [38] | Fatimah, I., Andiena, R. Z. and Yudha, S. P. (2017). Preparation of KF-modified kaolinite as green and reusable catalyst for microwave assisted biodiesel conversion. IOP Conference Series: Materials Science and Engineering 172 012026. |
| [39] | Chica, A. (2013). Zeolites: Promised materials for the sutainable production of hydrogen. International Scholarly Research Notices Chemical Engineering, volume 2013, Article ID 907425 (1-9). http://dx.doi.org/10.1155/2013/907425. |
| [40] | Kumar, S., Panda, A. K. and Singh, R. K. (2013). Preparation and characterization of acids and alkali treated kaolin clay. Bulletin of Chemical Reaction Engineering and Catalysis 8 (1), 61-69. http://dx.doi.org/10.9767/bcrec.8.1.4530.61-69. |
| [41] | Strejcova, K., Tisler, Z., Svobodova, E., and Velvarska, R. (2020). Characterization of modified natural minerals and rocks for possible adsorption and catalytic use. Molecules 25, 4989. Doi: 10.3390/molecules25214989. |
| [42] | Singh, S., Nga, N. T. A., Pham, T. L. M., Tan, J. S., Phuong, P. T. T. Khan, M. R. and Vo, D. V. N. (2017). Melgas production from bi-reforming of methane over La-modified santa Barbara amorphous-15 supported nickel catalyst. Chemical Engineering Transactions 56, 1573-1578. |
| [43] | Moavi, J., Buazar, F. and Sayahi, M. H. (2021). Algal magnetic nickel oxide nanocatalyst in accelerated synthesis of pyridopyrimidine derivatives. Scientific Reports, 11, 6296. https://doi.org/10.1038/841598-021-85832-z |
| [44] | Ramesh, S. and Venkatesha, N. J. (2017). Template free synthesis of Ni-perovskite: An efficient catalyst for hydrogen production by steam reforming of bioglycerol. ACS Sustainable Chemistry and Engineering, 5, 1339-1346. https://doi.org/10.1021/acssus chemeng.6601744. |
| [45] | He, L., Ren, Y., Yue, B., Tsang, S. C. E and He, H. (2021). Tuning metal-suppoort interactions on Ni/Al2O3 catalysts to improve catalytic activity and stability for dry reforming of methane. Processess, 9, 706. https://doi.org/10.3390/pr9040706. |
| [46] | Alvarez-Galvari, C., Melian, M., Ruiz-Matas, L., Eslava, J. L, Navaro, R. M., Ahmadi, M., Roldan Cuenya, B. and Fierro, J. L. G. (2019). Partial oxidation of methane to syngas over nickel based catalysts: influence of support type, additional rhodium and preparation method. Front Chem 7: 104. Retrieved on 28/11/2019 from http:///www.frontiersin.org/article s/10. 3389/f chem/2019.00104/full. |
| [47] | Rahman, A. and Jayaganthan, R. (2015). Study of photo catalyst magnesium aluminate spinel nanoparticles. Journal of Nanostruct Chem, 5, 147-151. DOI: 10.1007/540097-014-0135-9. |
| [48] | Aliyu, A., Abdukareem, A. S, Kovo, A. S., Abubakar, O. K., Tijani, J. O., and Karim, I. (2017). Synthesize multi-walled carbon nanotubes via catalytic chemical vapour deposition method oh Fe-Ni bimetallic catalyst supported on kaolin. Carbon Letters, vol 21, 33-50. |
| [49] | Xu, J. and Zhang, T. (2019). Fabrication of spent FCC catalyst composites by loaded V2O5 and TiO2 and heir comparative photocatalytic activities. Scientific Reports 9, 11099. Retrieved on 7/11/19 from https://www.nature.com/articles/s41598-019-47155-y |
| [50] | Simoljan, C. S., Crawford, J. M. and Carreon, M. A. (2020). Mesoporous microspherical NiO catalysts for the deoxygenation of oleic acid. Catalysis Communications 143, 106046. https://doi.org/10.1016/j.catcom.2020.106046 |
| [51] | Khzouz, M., Du, S., Wood, J. and Gkanas, E. (2018). Catalytic performance of Ni-Cu/Al2O3 for effective syngas production by methanol steam reforming. Fuel, vol.232, 672-683. https://doi.org/10.1016/j.fuel.2018.06.025. |
| [52] | Teng, C., He, J., Zhu, L., Ren, L., Chen, J., Hong, M. and Wang, Y. (2015). Fabrication and characterization of monodisperse magnetic porous nickel microspheres as novel catalysts. Nanoscale Research Letters, 10: 384. https://doi.org/10.1186/s11671-015-1088-8. |
| [53] | Ikenyiri, P. N. & Ukpaka, O. P. (2016). Overview on the effect of particle size on the performance of wood based adsorbent. Journal of Chemical Engineering and Process Technology, 7: 315. https:/doi.org/10.4172/2157-7048-1000315. |
| [54] | Queiroz, GA. And Barbosa, C. M. M. B. (2019). Study of the structural and morphological properties of copper catalysts supported on Al2O3 and TiO2 synthesized by the impregnation method. Revista Materia 24 (1), 12322 (1-8). |
| [55] | Angel-Soto, J., Martinez-Rosales, M., Angel-Soto, P. and Zamorategui-Molina, A. (2017). Synthesis, characterization and catalytic application of Ni catalysts supported on alumina-zirconia mixed oxides. Bull. Materials Science 40 (7), 1309-1318. |
| [56] | Mondal, T., Pant, K. K. and Dalai, A. K. (2015). Catalytic oxidative steam reforming of bio-ethanol for hydrogen production over Rh promoted Ni/CeO2-ZrO2 catalyst. International Journal of Hydrogen Energy 40, 2529-2544. |
| [57] | El-Alouani, M., Alehyen, S., El-Achouri, M., and Taibi, M. (2019). Preparation, characterization, and application of metakaolin-based geopolymer for removal of methylene blue from aqueous solution. Journal of Chemistry, vol.2019, Article ID 4212901, 1-14. Retrieved on 16/11/2019 from downloads.hinddwi.com/journals/jschem/2019/4212901.pdf |
| [58] | Xian, G., Zhang, N., Zhang, G., Zhang, Y. and Zou, Z. (2019). FeNiCeOx ternary catalyst prepared by ultrasonic impregnation method for diclofenac removal in fenton-like system. Water Science and Technology 79 (9), 1675-1684. |
| [59] | Levent, M., Agbaba, M. and Sahin, Y. (2016). Production of synthesis gases from ethanol steam reforming process. International Journal of Clean Coal and Energy 5, 45-63. |
| [60] | Hermida, L., Abdullah, A. Z. and Mohammed, A. R. (2018). FT-IR and TGA of MCF silica-supported nickel catalyst. Journal of Materials and Environmental Sciences 9 (8), 2328-2333. |
| [61] | Arana, J. T., Torres, J. J, Acevedo, D. F., Illanes, C. O, Ochoa, N. A. and Pagliero, C. L. (2019). One-step synthesis of CaO-ZnO efficient catalyst for biodiesel production. International Journal of Chemical Engineering, vol. 2019, Article ID 1806017, 1-7. |
| [62] | Yu, L., Song, M., Wei, Y. and Xiao, J. (2018). Combining carbon fibers with Ni/γ-Al2O3 used for syngas production (Part A): preparation and evaluation of complex carrier catalysts. Catalysts 8 (12), 658. Retrieved on 7/11/2019 from https://www.mdpi.com/2073-4344/8/12/658/htm |
| [63] | Mbaye, A., Diop, C. A. K., Miehe-Brendle, J., Senocq, F. and Muary, F. (2014). Characteization of natural and chemically modified kaolinite from Mako (Senegal) to remove lead from aqueous solutions. Clay Minerals 49 (4), 527-539. |
| [64] | Mgbemere, H. E., Lawal, G. I. Ekpe, I. C. and Chaudhary, A. I. (2018). Synthesis of zeolite-A using kaolin samples from Darazo, Bauchi state and Ajebo, Ogun state in Nigeria. Nigerian Journal of Technology 37 (1), 87-95. |
| [65] | Ebin, B. (2018). Simple preparation of Ni and NiO nanoparticles using raffinate solution originated from spent NiMH battery recycling. Journal of Inorganic and Organometallic Polymers and Materials, 28, 2554-2563. https://doi.org/10.1007/ s10904-028-0926-4 |
| [66] | Ding, Y. Zhang, H. Li, J., Zhang, S., Liu, B., Ekberg, C. and Jian, Z. (2019). Recovery of platinum from spent petroleum catalysts: Optimizatio using response surface methodology. Metals, 9, 354. Doi.: 10.3390/met9030354. |
| [67] | Patil, B., Sharma, S., Mohanta, H. K. and Roy, B. (2017). BINIVOX catalyst for hydrogen production from ethanol by low temperature steam reforming (LTSR). J. Chem. Sci, 129 (11), 1741-1746. https://doi.org/10.1007/s12039-017-1388-x. |
| [68] | Sharma, S., Patil, B., Pathak, A., Ghosalkar, S., Mohanta, H. K., and Roy, B. (2017). Application of BICOVOX catalyst for hydrogen production from ethanol. Chem. Techn. Environ Policy, 20, 695-701. https://doi.org/10.1007/s10098-017-1394-1. |
| [69] | Prajitha, P. M. K. and Pushpaletha, P. (2017). Preparation of solid acid catalyst from modified kaolinite and its characterization and catalytic activity. Indian Journal of Chemical Technology 24, 637-643. |
| [70] | He, S., Zhang, L., He, S., Mo, L., Zhang, X., Wang, H. and Luo, Y. (2015). Ni/SiO2 catalyst prepared with nickel nitrate precursor for combination of CO2 reforming and partial oxidation of methane: Characterization and deactivation mechanism investigation. Journal of Nanomaterials, V2015, Article ID 659402, 1-8. http://dx.doi.org/10.1155/2015/659402. |
| [71] | Zangouei, M., Moghaddan, A. Z and Arasteh, M. (2010). The influence of nickel loading on reducibility of NiO/Al2O3 catalysts synthesized by sol-gel method. Chemical Engineering Research Bulletin 14, 97-102. https://doi.org/10.3329/cerb.v14i2.5052. |
| [72] | Al-Zeer, M. I. M. and Mackenzie, K. J. D. (2019). Fly ash-based geopolymers as sustainable bifunctional heterogeneous catalysts and their reactivity in Friedel-crafts acylation reactions. Catalysts 9 (4). 372. Retrieved on 12/11/2019 from https://www.mdpi.com /2073-4344 /9/4/372/htm. |
| [73] | Petal, R. and Patel, S. (2015). Renewable hydrogen production from butanol: a review. Clean Energy 1 (1), 90-101. |
| [74] | Tomishige, K., Li, D., Tamura, M. and Nakagawa, Y. (2017). Nickel iron alloy catalysts for reforming of hydrocarbon: preparation, structure, and catalytic properties. Catal. Sci. Technol. 7, 3952-3979. |
| [75] | Bagheri, S. Julkapli, N. M. and Abdhamid, S. B. (2014). Titanium dioxide as a catalyst support in heterogeneous catalysis. The Scientic World Journal, vol 2014. Article ID 727496, 1-21. Retrieved on 11/11/2019 from downloads.hindawi.com/journals/tswj /2014 /727496.pdf. |
| [76] | Mulewa, W., Tahir, M. and Amin, N. A. S. (2017). Ethanol steam reforming for renewable hydrogen production over La-modified TiO2 catalyst. Chemical Engineering Transactions 56, 349-354. |
| [77] | Son, I. H., Lee, S. J., Roh, H. S. (2014). Hydrogen production from carbon dioxide reforming of methane over highly active and stable MgO promoted Co-Ni/γ-Al2O3 catalyst. International Journal of Hydrogen Energy, 39, 3762-3770. |
| [78] | Dou, B., Wang, C., Song, Y., Chen, H., Xu, Y.(2014). Activity of Ni–Cu–Al based catalyst for renewable hydrogen production from steam reforming of glycerol. Energy Conversion and Management, 78, 253-259. |
| [79] | Lin, Z., Liu, F. and He, H. (2015). Effect of preparation methods on the activity of VOx/ CeO2 catalysts for the selective catalytic reduction of NOx with NH3. Catalysis Science and Technology 5, 389-306. |
| [80] | Yussuf, A. S., Adeniyi, O. D., Olutoye, M. A., and Akpan, U. G. (2018). Development and characterization of a composite anthill-chicken eggshell catalyst for biodiesel production from waste frying oil. International Journal of Technology, 1, 110-119. https/doi.org/10.14716/ijtech.v9i1.1166. |
APA Style
Abdullahi Nwaha Isah, Elizabeth Jumoke Eterigho, Moses Aderemi Olutoye, Mohammed Umar Garba. (2022). Synthesis and Characterization of MgO-Doped / Acid Modified Metakaolin Supported Ni-Based Catalysts. Journal of Energy, Environmental & Chemical Engineering, 7(3), 54-65. https://doi.org/10.11648/j.jeece.20220703.12
ACS Style
Abdullahi Nwaha Isah; Elizabeth Jumoke Eterigho; Moses Aderemi Olutoye; Mohammed Umar Garba. Synthesis and Characterization of MgO-Doped / Acid Modified Metakaolin Supported Ni-Based Catalysts. J. Energy Environ. Chem. Eng. 2022, 7(3), 54-65. doi: 10.11648/j.jeece.20220703.12
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Download@article{10.11648/j.jeece.20220703.12,
author = {Abdullahi Nwaha Isah and Elizabeth Jumoke Eterigho and Moses Aderemi Olutoye and Mohammed Umar Garba},
title = {Synthesis and Characterization of MgO-Doped / Acid Modified Metakaolin Supported Ni-Based Catalysts},
journal = {Journal of Energy, Environmental & Chemical Engineering},
volume = {7},
number = {3},
pages = {54-65},
doi = {10.11648/j.jeece.20220703.12},
url = {https://doi.org/10.11648/j.jeece.20220703.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeece.20220703.12},
abstract = {Catalytic steam reforming of bioethanol is an endothermic reaction for hydrogen production with high tendency of complete conversion at high temperature, but the catalyst is susceptible to deactivation due to the sintering of based metal and carbon deposition. MgO-doped/acid modified metakaolin supported nickel-based catalysts (with 5-25wt% nickel loading) were synthesized using wetness impregnation method and characterized. The physicochemical properties of the catalysts were examined using XRD, BET, SEM-EDX, XRF, FTIR and TG/DTA techniques. XRD patterns show the presence of nickel oxide, spinel MgAl2O4, NiAl2O4 in all the calcined catalyst samples, via characteristic peaks. Most of the crystallite sizes of the NiO particles in the synthesized catalysts were within 20.1-38nm, far less than the size effect threshold of 100nm, except CAT II, with crystallite size of 132.5nm, which could be attributed to the high tendency of NiO particles to agglomerate with MgO. Based on BET results, all the synthesized catalysts have pore diameter in the mesopore diameter range. SEM-EDX results show that there is nuclear interaction among MgO, NiO and Al2O3, as confirmed by XRD and XRF analyses. The FTIR analyses show that nickel phyllosilicate bond, Si-O-Al stretching vibration, OH stretching and metal-oxygen bond exist within the synthesized catalysts. The formation of MgAl2O4 and NiAl2O4 spinel phases is due to the interaction of active oxide components with acid modified metakaolin and MgO, which contributes to the catalyst thermal stability, as confirmed by TG/DTA analyses. These spinel structures would contribute to the catalysts’ activity and selectivity, as their structures could remain unchanged under severe reaction conditions. The mesoporous structure of the synthesized catalysts would aid the reactant gases to adsorb on its surface and easy diffusion through the catalyst’s channel after reaction. With better interaction among the support, promoter and based metal in the synthesized catalysts and available surface OH group, the formation and conversion of adsorbed formate intermediate during steam reforming reactions would be facilitated, and in turn reduce carbon deposition.},
year = {2022}
}
TY - JOUR T1 - Synthesis and Characterization of MgO-Doped / Acid Modified Metakaolin Supported Ni-Based Catalysts AU - Abdullahi Nwaha Isah AU - Elizabeth Jumoke Eterigho AU - Moses Aderemi Olutoye AU - Mohammed Umar Garba Y1 - 2022/07/13 PY - 2022 N1 - https://doi.org/10.11648/j.jeece.20220703.12 DO - 10.11648/j.jeece.20220703.12 T2 - Journal of Energy, Environmental & Chemical Engineering JF - Journal of Energy, Environmental & Chemical Engineering JO - Journal of Energy, Environmental & Chemical Engineering SP - 54 EP - 65 PB - Science Publishing Group SN - 2637-434X UR - https://doi.org/10.11648/j.jeece.20220703.12 AB - Catalytic steam reforming of bioethanol is an endothermic reaction for hydrogen production with high tendency of complete conversion at high temperature, but the catalyst is susceptible to deactivation due to the sintering of based metal and carbon deposition. MgO-doped/acid modified metakaolin supported nickel-based catalysts (with 5-25wt% nickel loading) were synthesized using wetness impregnation method and characterized. The physicochemical properties of the catalysts were examined using XRD, BET, SEM-EDX, XRF, FTIR and TG/DTA techniques. XRD patterns show the presence of nickel oxide, spinel MgAl2O4, NiAl2O4 in all the calcined catalyst samples, via characteristic peaks. Most of the crystallite sizes of the NiO particles in the synthesized catalysts were within 20.1-38nm, far less than the size effect threshold of 100nm, except CAT II, with crystallite size of 132.5nm, which could be attributed to the high tendency of NiO particles to agglomerate with MgO. Based on BET results, all the synthesized catalysts have pore diameter in the mesopore diameter range. SEM-EDX results show that there is nuclear interaction among MgO, NiO and Al2O3, as confirmed by XRD and XRF analyses. The FTIR analyses show that nickel phyllosilicate bond, Si-O-Al stretching vibration, OH stretching and metal-oxygen bond exist within the synthesized catalysts. The formation of MgAl2O4 and NiAl2O4 spinel phases is due to the interaction of active oxide components with acid modified metakaolin and MgO, which contributes to the catalyst thermal stability, as confirmed by TG/DTA analyses. These spinel structures would contribute to the catalysts’ activity and selectivity, as their structures could remain unchanged under severe reaction conditions. The mesoporous structure of the synthesized catalysts would aid the reactant gases to adsorb on its surface and easy diffusion through the catalyst’s channel after reaction. With better interaction among the support, promoter and based metal in the synthesized catalysts and available surface OH group, the formation and conversion of adsorbed formate intermediate during steam reforming reactions would be facilitated, and in turn reduce carbon deposition. VL - 7 IS - 3 ER -
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