Influence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition

The La based perovskite type LaMO3 (M = Ni, Co) oxides were prepared by combustion synthesis method using citric acid as organic fuel. These catalyst precursors tested for ammonia decomposition. The LaNiO3 and LaCoO3 catalysts showed good activity for NH3 decomposition. The LaNiO3 catalyst displayed...

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Autores principales:	Seetharamulu Podila, Hafedh Driss, Arshid M. Ali, Abdulrahim A. Al-Zahrani, Muhammad A. Daous
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Perovskite Nickel Cobalt Ammonia decomposition and Hydrogen production Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/730a4f58efd0409b9ccfeb259bc7cda1
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spelling	oai:doaj.org-article:730a4f58efd0409b9ccfeb259bc7cda12021-11-22T04:20:04ZInfluence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition1878-535210.1016/j.arabjc.2021.103547https://doaj.org/article/730a4f58efd0409b9ccfeb259bc7cda12022-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1878535221005621https://doaj.org/toc/1878-5352The La based perovskite type LaMO3 (M = Ni, Co) oxides were prepared by combustion synthesis method using citric acid as organic fuel. These catalyst precursors tested for ammonia decomposition. The LaNiO3 and LaCoO3 catalysts showed good activity for NH3 decomposition. The LaNiO3 catalyst displayed greater activity than LaCoO3. This due to high surface area and easily reducibility of Ni species. A 50% of La was substituted by Ce in both LaNiO3 and LaCoO3 catalysts. A remarkable effect on catalytic performance was observed with the partial substitution of La by Ce in perovskite catalyst especially at lower temperatures. The La0.5Ce0.5NiO3 catalyst exhibited highest activity among all prepared samples. The achieved superior activity is due to boost in surface area, reducibility and suitable basicity. The SEM elemental mapping of La0.5Ce0.5NiO3 catalyst concluded that metal oxide constituents dispersed homogeneously. The La0.5Ce0.5NiO3 catalyst showed excellent stable catalytic performance during 50 h time on study at 550 °C.Seetharamulu PodilaHafedh DrissArshid M. AliAbdulrahim A. Al-ZahraniMuhammad A. DaousElsevierarticlePerovskiteNickelCobaltAmmonia decomposition and Hydrogen productionChemistryQD1-999ENArabian Journal of Chemistry, Vol 15, Iss 1, Pp 103547- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Perovskite Nickel Cobalt Ammonia decomposition and Hydrogen production Chemistry QD1-999
spellingShingle	Perovskite Nickel Cobalt Ammonia decomposition and Hydrogen production Chemistry QD1-999 Seetharamulu Podila Hafedh Driss Arshid M. Ali Abdulrahim A. Al-Zahrani Muhammad A. Daous Influence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition
description	The La based perovskite type LaMO3 (M = Ni, Co) oxides were prepared by combustion synthesis method using citric acid as organic fuel. These catalyst precursors tested for ammonia decomposition. The LaNiO3 and LaCoO3 catalysts showed good activity for NH3 decomposition. The LaNiO3 catalyst displayed greater activity than LaCoO3. This due to high surface area and easily reducibility of Ni species. A 50% of La was substituted by Ce in both LaNiO3 and LaCoO3 catalysts. A remarkable effect on catalytic performance was observed with the partial substitution of La by Ce in perovskite catalyst especially at lower temperatures. The La0.5Ce0.5NiO3 catalyst exhibited highest activity among all prepared samples. The achieved superior activity is due to boost in surface area, reducibility and suitable basicity. The SEM elemental mapping of La0.5Ce0.5NiO3 catalyst concluded that metal oxide constituents dispersed homogeneously. The La0.5Ce0.5NiO3 catalyst showed excellent stable catalytic performance during 50 h time on study at 550 °C.
format	article
author	Seetharamulu Podila Hafedh Driss Arshid M. Ali Abdulrahim A. Al-Zahrani Muhammad A. Daous
author_facet	Seetharamulu Podila Hafedh Driss Arshid M. Ali Abdulrahim A. Al-Zahrani Muhammad A. Daous
author_sort	Seetharamulu Podila
title	Influence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition
title_short	Influence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition
title_full	Influence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition
title_fullStr	Influence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition
title_full_unstemmed	Influence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition
title_sort	influence of ce substitution in lamo3 (m = co/ni) perovskites for cox-free hydrogen production from ammonia decomposition
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/730a4f58efd0409b9ccfeb259bc7cda1
work_keys_str_mv	AT seetharamulupodila influenceofcesubstitutioninlamo3mconiperovskitesforcoxfreehydrogenproductionfromammoniadecomposition AT hafedhdriss influenceofcesubstitutioninlamo3mconiperovskitesforcoxfreehydrogenproductionfromammoniadecomposition AT arshidmali influenceofcesubstitutioninlamo3mconiperovskitesforcoxfreehydrogenproductionfromammoniadecomposition AT abdulrahimaalzahrani influenceofcesubstitutioninlamo3mconiperovskitesforcoxfreehydrogenproductionfromammoniadecomposition AT muhammadadaous influenceofcesubstitutioninlamo3mconiperovskitesforcoxfreehydrogenproductionfromammoniadecomposition
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Influence of Ce substitution in LaMO3 (M = Co/Ni) perovskites for COx-free hydrogen production from ammonia decomposition

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