Heterostructure catalyst of Cu-Y2O3 supported on Cu2Y2O5 perovskite in solar-driven water gas shift reaction

doi:10.1007/s11164-022-04767-w

GIEC OpenIR

	Heterostructure catalyst of Cu-Y2O3 supported on Cu2Y2O5 perovskite in solar-driven water gas shift reaction
	Wang, Ze-Yu 1,2; Luo, Feng-Ying 1,2; Li, Juan1 ; Wang, Nan 1; Li, Xiang-Nan 1; Li, Xin-Jun1
	2022-06-25
发表期刊	RESEARCH ON CHEMICAL INTERMEDIATES
ISSN	0922-6168
页码	14
通讯作者	Li, Xin-Jun(lixj@ms.giec.ac.cn)
摘要	Water gas shift reaction (WGSR) is one of the important ways to achieve high-quality utilization of syngas. However, thermal catalysis requires a large amount of secondary energy input, which can lead to serious environmental pollution. Therefore, it is necessary to use clean energy sunlight to catalyze solar-driven WGSR to improve the conversion efficiency at lower temperatures. Here, we reported a facile sol-gel synthesis method to prepare Cu2Y2O5 perovskite, which was photoactivated by light irradiation in 10 cm to form a heterostructure catalyst of Cu-Y2O3 supported on Cu2Y2O5 perovskite. The results showed that the catalyst well exhibited photocatalytic performance (43.7% of CO conversion and about 17 mu mol center dot g(cat)(-1)center dot min(-1) and 26 mu mol center dot g(cat)(-1)center dot min(-1) of H-2 and CO2 production) and stabilized in 19 h in the solar-driven WGSR, while only 27.02% CO conversion can be achieve at about 150 degrees C on thermal WGSR. The physicochemical characterizations of the samples indicated that Cu-0 and Cu+ existed and formed Cu-0-Cu+ interface, which played a critical role in WGSR. Mechanism studies have shown that Cu2+ of photocatalysts would generate electrons and holes under light irradiation to accelerate the catalytic process of WGSR.
关键词	Cu(2)Y(2)O5 perovskite Photoactive Water gas shift reaction Solar-driven
DOI	10.1007/s11164-022-04767-w
关键词[WOS]	OXYGEN VACANCY ; ENHANCEMENT ; DEGRADATION
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Guangdong Province, China[2021 A1515010445] ; Science and Technology Program of Guangzhou, China[202102020402]
WOS研究方向	Chemistry
项目资助者	Natural Science Foundation of Guangdong Province, China ; Science and Technology Program of Guangzhou, China
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000815566600001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/36890
专题	中国科学院广州能源研究所
通讯作者	Li, Xin-Jun
作者单位	1.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ze-Yu,Luo, Feng-Ying,Li, Juan,et al. Heterostructure catalyst of Cu-Y2O3 supported on Cu2Y2O5 perovskite in solar-driven water gas shift reaction[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2022:14.
APA	Wang, Ze-Yu,Luo, Feng-Ying,Li, Juan,Wang, Nan,Li, Xiang-Nan,&Li, Xin-Jun.(2022).Heterostructure catalyst of Cu-Y2O3 supported on Cu2Y2O5 perovskite in solar-driven water gas shift reaction.RESEARCH ON CHEMICAL INTERMEDIATES,14.
MLA	Wang, Ze-Yu,et al."Heterostructure catalyst of Cu-Y2O3 supported on Cu2Y2O5 perovskite in solar-driven water gas shift reaction".RESEARCH ON CHEMICAL INTERMEDIATES (2022):14.