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Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading

The development of sustainable materials to produce a highly stable and efficient tar removal catalyst is important for biomass gasification technology. In this study, the effect of support modification using hydrogen peroxide (H2O2) and Ni and/or Co loadings on catalytic performance over palm kerne...

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Main Authors: Mohidin Yahya, Hamdya Sabrina, Saidina Amin, Nor Aishah
Format: Article
Published: Elsevier B.V. 2022
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TP Chemical technology
Online Access:http://eprints.utm.my/104198/
http://dx.doi.org/10.1016/j.fuproc.2022.107275
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spelling my.utm.1041982024-01-18T00:21:27Z http://eprints.utm.my/104198/ Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading Mohidin Yahya, Hamdya Sabrina Saidina Amin, Nor Aishah TP Chemical technology The development of sustainable materials to produce a highly stable and efficient tar removal catalyst is important for biomass gasification technology. In this study, the effect of support modification using hydrogen peroxide (H2O2) and Ni and/or Co loadings on catalytic performance over palm kernel shell-based activated carbon (AC) supported catalysts for hydrogen (H2) production via steam reforming of toluene as biomass tar model compound have been investigated. The H2O2-modified AC (ACP) registers enhanced surface oxygenated functional groups and ultramicroporosity leading to highly dispersed active metals sites with uniform distribution and high acidity after Ni[sbnd]Co impregnation. The highest activity is conferred by 10%Ni-10%Co/ACP at 93.8% and 90.2% of H2 yield and toluene conversion, respectively, with 325 h of stability. This is attributed to high turnover frequency, small crystallite size, weak metal-support interaction (WMSI) and simultaneous Ni[sbnd]Co reducibility. The WMSI leads to carbon nanotube formation with tip-growth mechanism and suppresses catalyst deactivation. The reaction is endothermic and non-spontaneous with an ordered system at transition state. The results imply that the oxygenated functionalized ultramicroporous palm kernel shell-based ACP has a great potential as a high-performance catalyst in steam reforming of tar for H2 production. Elsevier B.V. 2022 Article PeerReviewed Mohidin Yahya, Hamdya Sabrina and Saidina Amin, Nor Aishah (2022) Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading. Fuel Processing Technology, 232 (NA). pp. 1-21. ISSN 0378-3820 http://dx.doi.org/10.1016/j.fuproc.2022.107275 DOI : 10.1016/j.fuproc.2022.107275
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Mohidin Yahya, Hamdya Sabrina
Saidina Amin, Nor Aishah
Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading
description The development of sustainable materials to produce a highly stable and efficient tar removal catalyst is important for biomass gasification technology. In this study, the effect of support modification using hydrogen peroxide (H2O2) and Ni and/or Co loadings on catalytic performance over palm kernel shell-based activated carbon (AC) supported catalysts for hydrogen (H2) production via steam reforming of toluene as biomass tar model compound have been investigated. The H2O2-modified AC (ACP) registers enhanced surface oxygenated functional groups and ultramicroporosity leading to highly dispersed active metals sites with uniform distribution and high acidity after Ni[sbnd]Co impregnation. The highest activity is conferred by 10%Ni-10%Co/ACP at 93.8% and 90.2% of H2 yield and toluene conversion, respectively, with 325 h of stability. This is attributed to high turnover frequency, small crystallite size, weak metal-support interaction (WMSI) and simultaneous Ni[sbnd]Co reducibility. The WMSI leads to carbon nanotube formation with tip-growth mechanism and suppresses catalyst deactivation. The reaction is endothermic and non-spontaneous with an ordered system at transition state. The results imply that the oxygenated functionalized ultramicroporous palm kernel shell-based ACP has a great potential as a high-performance catalyst in steam reforming of tar for H2 production.
format Article
author Mohidin Yahya, Hamdya Sabrina
Saidina Amin, Nor Aishah
author_facet Mohidin Yahya, Hamdya Sabrina
Saidina Amin, Nor Aishah
author_sort Mohidin Yahya, Hamdya Sabrina
title Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading
title_short Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading
title_full Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading
title_fullStr Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading
title_full_unstemmed Oxygen-rich ultramicroporous activated carbon for boosting H2 production via toluene steam reforming: Effect of H2O2-modification and Ni/Co loading
title_sort oxygen-rich ultramicroporous activated carbon for boosting h2 production via toluene steam reforming: effect of h2o2-modification and ni/co loading
publisher Elsevier B.V.
publishDate 2022
url http://eprints.utm.my/104198/
http://dx.doi.org/10.1016/j.fuproc.2022.107275
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score 13.211869

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