TY  - JOUR
VL  - 229
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85091369114&doi=10.1016%2fj.ces.2020.116141&partnerID=40&md5=8e83ef98011551579ef3dee7a191f315
JF  - Chemical Engineering Science
A1  - Bukhari, S.N.
A1  - Chong, C.C.
A1  - Setiabudi, H.D.
A1  - Cheng, Y.W.
A1  - Teh, L.P.
A1  - Jalil, A.A.
SN  - 00092509
PB  - Elsevier Ltd
Y1  - 2021///
KW  - Carbon dioxide; Carbonates; Catalysts; Coke; Hydrogenation; Methanation; Nickel; Physicochemical properties
KW  -  Basic sites; Bidentate carbonates; Catalytic performance; Coke resistances; Dissociation pathways; In-situ FT-IR; Intermediate specie; Sba-15 supports
KW  -  Nickel compounds
ID  - scholars15268
TI  - Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation
N1  - cited By 43
N2  - The rod-like SBA-15 was transformed into fibrous type SBA-15 (F-SBA-15). The Ni/F-SBA-15 was catalytically evaluated in CO2 methanation and compared with conventional Ni/SBA-15. A superior catalytic performance was shown by Ni/F-SBA-15 (CO2 conversion = 99.7, and CH4 yield = 98.2) than Ni/SBA-15 (CO2 conversion = 91.1, and CH4 yield = 87.5). This phenomenon was attributed to the favorable physicochemical properties of F-SBA-15 as evidenced by the characterization results. A higher homogeneity of finer Ni was embedded onto the F-SBA-15 support, subsequently strengthened the Ni interaction with F-SBA-15, and increased the amount of moderate basic sites. The in situ FTIR studies evidenced the CO2 methanation over both catalysts proceeded via CO2 dissociation pathway. Three intermediate species (linear carbonyl, unidentate, and bidentate carbonates) were detected for Ni/F-SBA-15, while only bidentate carbonates were detected for Ni/SBA-15, signifying excellent catalytic attributes of Ni/F-SBA-15. Additionally, Ni/F-SBA-15 demonstrated higher stability and coke resistance ability than Ni/SBA-15. © 2020
AV  - none
ER  -