@article{scholars14556,
            year = {2021},
         journal = {Catalysis Today},
       publisher = {Elsevier B.V.},
           pages = {245--257},
            note = {cited By 25},
          volume = {375},
             doi = {10.1016/j.cattod.2020.06.073},
           title = {Methane dry reforming over Ni/fibrous SBA-15 catalysts: Effects of support morphology (rod-liked F-SBA-15 and dendritic DFSBA-15)},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089152257&doi=10.1016\%2fj.cattod.2020.06.073&partnerID=40&md5=20776a56aa48938a1a19e54d6b6857ab},
        keywords = {Catalyst activity; Decomposition; Impregnation; Mass transfer; Methane; Microemulsions; Molecular sieves; Morphology; Nickel oxide; Silica, Metal-support interactions; Methane dry reforming; Microemulsion technique; Molecular sieve materials; Optimal temperature; Reactant conversion; Support morphology; Surface attributes, Nickel},
        abstract = {Santa Barbara Amorphous-15 (SBA-15) is a promising molecular sieve material with its highly uniform porosity; nonetheless, its tubular pore channels discouraged mass transfer of reactants during catalysis. Herein, SBA-15 was altered by microemulsion technique to prepare two fibrous SBA-15 with distinct morphologies, viz. rod-liked F-SBA-15 and dendritic DFSBA-15. After Ni impregnation, the Ni/fibrous SBA-15 catalysts (Ni/F-SBA-15 and Ni/DFSBA-15) were catalytically evaluated with methane dry reforming (MDR). From characterization, rod-shaped F-SBA-15 had outer fibrous layer whereas dendritic DFSBA-15 consisted of a solid core with radially projected fibres. Besides, Ni/F-SBA-15 possessed uneven sized NiO but Ni/DFSBA-15 had uniform NiO dispersion. Characterization also proved that fibrillation and Ni impregnation did not alter the pristine properties of SBA-15. However, the surface attributes of SBA-15 remarkably reduced after fibrillation and Ni impregnation. The strength of metal-support (Ni-SiO2) interaction could be ranked as: Ni/DFSBA-15 \> Ni/F-SBA-15 \> Ni/SBA-15 (previously reported). Both Ni/fibrous SBA-15 catalysts exhibited high proportion of moderate basicity, which favoured the carbon removal via reverse Boudouard reaction. In accordance with endothermicity, the optimal temperature of MDR over both catalysts was 800 {\^A}oC as greater temperature provoked conspicuous CH4 thermal decomposition. For 50 h MDR at 800 {\^A}oC, both catalysts presented superior catalytic activity and stability. With a fully accessible siliceous framework, Ni/DFSBA-15 attained greater reactant conversions (84.05{\^a}??87.40 XCH4 and 81.80{\^a}??85.60 XCO2) than Ni/F-SBA-15 (80.30{\^a}??85.80 XCH4 and 76.73{\^a}??84.10 XCO2). In overall, Ni/DFSBA-15 was more coke-resistant than Ni/F-SBA-15 by virtue of its fully accessible structure, uniformly dispersed Ni phase, and stronger metal-support interaction. {\^A}{\copyright} 2020 Elsevier B.V.},
          author = {Chong, C. C. and Cheng, Y. W. and Bukhari, S. N. and Setiabudi, H. D. and Jalil, A. A.},
            issn = {09205861}
}