CeO2-TiO2 Hybid-Nanotubes with Tunable Oxygen Vacancies as the Support to Confine Pt Nanoparticles for the Low-Temperature Water-Gas Shift Reaction

doi:10.1002/slct.202102823

GIEC OpenIR

	CeO2-TiO2 Hybid-Nanotubes with Tunable Oxygen Vacancies as the Support to Confine Pt Nanoparticles for the Low-Temperature Water-Gas Shift Reaction
	Chen, Yaqian 1,2; Li, Xiangnan 1; Li, Juan1 ; Du, Yubing 1,2; Peng, Quanming 1; Wu, Liangpeng1 ; Xinjun 1; Li 1
	2021-11-22
发表期刊	CHEMISTRYSELECT
ISSN	2365-6549
卷号	6 期号:43 页码:11900-11907
通讯作者	Li(lixj@ms.giec.ac.cn)
摘要	Reducible oxides as supports have been demonstrated to improve the activity of Pt catalysts towards water-gas shift (WGS) reaction. The Pt species anchored by the oxygen vacancies derived from these supports play as catalytic sites during low-temperature WGS reaction. Herein, we introduced CeO2 to modify TiO2 nanotubes (TiO2NT) and prepared CeO2-TiO2 hybid-nanotubes ((CeO2)(x)(TiO2)(1-x)NT, x=0.2, 0.4, 0.6) to confine Pt nanoparticles (NPs) as the efficient catalysts for the low-temperature WGS reaction. Pt NPs confined in (CeO2)(x)(TiO2)(1-x)NT catalysts exhibit higher WGS activity than that of the Pt NPs entrapped in pure TiO2NT (Pt-in-TiO2NT) and Pt/CeO2 catalysts throughout the entire reaction temperature range. Activity measurements coupled with the physicochemical characterization of catalysts suggest that the redox ability of PtOx species is positive correlated with WGS activity and oxygen vacancy adjacent to Pt (Pt-O-v) serves as the active site for H2O dissociation and CO oxidation in WGS reaction.
关键词	Low-temperature water-gas shift reaction nanotubes oxygen vacancy platinum structure-activity relationships
DOI	10.1002/slct.202102823
关键词[WOS]	CATALYTIC COMBUSTION ; TIO2 NANOTUBES ; PERFORMANCE ; CEO2 ; OXIDATION ; FACILE
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Guangdong Province, China[2021 A1515010445] ; National Natural Science Foundation of China[51802305] ; Science and Technology Program of Guangzhou, China[202102020402] ; Analytical & Testing Center, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, China
WOS研究方向	Chemistry
项目资助者	Natural Science Foundation of Guangdong Province, China ; National Natural Science Foundation of China ; Science and Technology Program of Guangzhou, China ; Analytical & Testing Center, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, China
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000720942400007
出版者	WILEY-V C H VERLAG GMBH
引用统计
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/35480
专题	中国科学院广州能源研究所
通讯作者	Li
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Chen, Yaqian,Li, Xiangnan,Li, Juan,et al. CeO2-TiO2 Hybid-Nanotubes with Tunable Oxygen Vacancies as the Support to Confine Pt Nanoparticles for the Low-Temperature Water-Gas Shift Reaction[J]. CHEMISTRYSELECT,2021,6(43):11900-11907.
APA	Chen, Yaqian.,Li, Xiangnan.,Li, Juan.,Du, Yubing.,Peng, Quanming.,...&Li.(2021).CeO2-TiO2 Hybid-Nanotubes with Tunable Oxygen Vacancies as the Support to Confine Pt Nanoparticles for the Low-Temperature Water-Gas Shift Reaction.CHEMISTRYSELECT,6(43),11900-11907.
MLA	Chen, Yaqian,et al."CeO2-TiO2 Hybid-Nanotubes with Tunable Oxygen Vacancies as the Support to Confine Pt Nanoparticles for the Low-Temperature Water-Gas Shift Reaction".CHEMISTRYSELECT 6.43(2021):11900-11907.