Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation

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 (...

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Main Authors: Syahida Nasuha, Bukhari, Chi, Cheng Chong, Setiabudi, Herma Dina, Yoke, Wang Cheng, Lee, Peng Teh, Aishah, Abdul Jalil
Format: Article
Language:English
Published: Elsevier 2021
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/33852/1/NiFibrous%20type%20SBA-15.pdf
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author Syahida Nasuha, Bukhari
Chi, Cheng Chong
Setiabudi, Herma Dina
Yoke, Wang Cheng
Lee, Peng Teh
Aishah, Abdul Jalil
author_facet Syahida Nasuha, Bukhari
Chi, Cheng Chong
Setiabudi, Herma Dina
Yoke, Wang Cheng
Lee, Peng Teh
Aishah, Abdul Jalil
author_sort Syahida Nasuha, Bukhari
collection UMP
description 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.
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spelling UMPir338522022-04-22T04:25:43Z http://umpir.ump.edu.my/id/eprint/33852/ Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation Syahida Nasuha, Bukhari Chi, Cheng Chong Setiabudi, Herma Dina Yoke, Wang Cheng Lee, Peng Teh Aishah, Abdul Jalil TP Chemical technology 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. Elsevier 2021 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/33852/1/NiFibrous%20type%20SBA-15.pdf Syahida Nasuha, Bukhari and Chi, Cheng Chong and Setiabudi, Herma Dina and Yoke, Wang Cheng and Lee, Peng Teh and Aishah, Abdul Jalil (2021) Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation. Chemical Engineering Science, 229 (116141). pp. 1-12. ISSN 0009-2509. (Published) https://doi.org/10.1016/j.ces.2020.116141 https://doi.org/10.1016/j.ces.2020.116141
spellingShingle TP Chemical technology
Syahida Nasuha, Bukhari
Chi, Cheng Chong
Setiabudi, Herma Dina
Yoke, Wang Cheng
Lee, Peng Teh
Aishah, Abdul Jalil
Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation
title Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation
title_full Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation
title_fullStr Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation
title_full_unstemmed Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation
title_short Ni/Fibrous type SBA-15: Highly active and coke resistant catalyst for CO2 methanation
title_sort ni fibrous type sba 15 highly active and coke resistant catalyst for co2 methanation
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/33852/1/NiFibrous%20type%20SBA-15.pdf
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