Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water

Unburnt methane emitted from stationary and internal combustion engines has raised concerns due to its strong greenhouse effect. Pd-based catalysts are considered as benchmark for total oxidation of methane at exhaust gas conditions. However, high content of water vapor drastically decreases their p...

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Main Authors:	Chaoqun Zhou, Hao Ma, Wenhao Yuan, Fei Qi
Format:	Article
Language:	English
Published:	Elsevier 2021-01-01
Series:	Catalysis Communications
Subjects:	Methane abatement Palladium Encapsulation N-doping Water inhibition
Online Access:	http://www.sciencedirect.com/science/article/pii/S1566736720302612

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record_format	Article
spelling	doaj-93492f2eac764f3c975b8d295aac22fe2021-03-19T07:03:24ZengElsevierCatalysis Communications1873-39052021-01-01149106185Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of waterChaoqun Zhou0Hao Ma1Wenhao Yuan2Fei Qi3School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, ChinaCorresponding author.; School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, ChinaSchool of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, ChinaSchool of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, ChinaUnburnt methane emitted from stationary and internal combustion engines has raised concerns due to its strong greenhouse effect. Pd-based catalysts are considered as benchmark for total oxidation of methane at exhaust gas conditions. However, high content of water vapor drastically decreases their performance. Here we present an encapsulated Pd catalyst by hollow silica spheres that presents an enhanced catalytic activity in the presence of water vapor. The use of hydrophobic support alone showed limited improvement, whereas encapsulation of Pd in a confined volume efficiently combusted methane in wet conditions. The effect of Pd encapsulation was discussed.http://www.sciencedirect.com/science/article/pii/S1566736720302612Methane abatementPalladiumEncapsulationN-dopingWater inhibition
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Chaoqun Zhou Hao Ma Wenhao Yuan Fei Qi
spellingShingle	Chaoqun Zhou Hao Ma Wenhao Yuan Fei Qi Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water Catalysis Communications Methane abatement Palladium Encapsulation N-doping Water inhibition
author_facet	Chaoqun Zhou Hao Ma Wenhao Yuan Fei Qi
author_sort	Chaoqun Zhou
title	Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water
title_short	Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water
title_full	Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water
title_fullStr	Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water
title_full_unstemmed	Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water
title_sort	pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water
publisher	Elsevier
series	Catalysis Communications
issn	1873-3905
publishDate	2021-01-01
description	Unburnt methane emitted from stationary and internal combustion engines has raised concerns due to its strong greenhouse effect. Pd-based catalysts are considered as benchmark for total oxidation of methane at exhaust gas conditions. However, high content of water vapor drastically decreases their performance. Here we present an encapsulated Pd catalyst by hollow silica spheres that presents an enhanced catalytic activity in the presence of water vapor. The use of hydrophobic support alone showed limited improvement, whereas encapsulation of Pd in a confined volume efficiently combusted methane in wet conditions. The effect of Pd encapsulation was discussed.
topic	Methane abatement Palladium Encapsulation N-doping Water inhibition
url	http://www.sciencedirect.com/science/article/pii/S1566736720302612
work_keys_str_mv	AT chaoqunzhou pdencapsulatedbyhollowsilicaspheresforenhancedtotaloxidationofmethaneinthepresenceofwater AT haoma pdencapsulatedbyhollowsilicaspheresforenhancedtotaloxidationofmethaneinthepresenceofwater AT wenhaoyuan pdencapsulatedbyhollowsilicaspheresforenhancedtotaloxidationofmethaneinthepresenceofwater AT feiqi pdencapsulatedbyhollowsilicaspheresforenhancedtotaloxidationofmethaneinthepresenceofwater
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Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water

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