Preparation and characterization of Ti0.7Sn0.3O2 as catalyst support for oxygen reduction reaction

	Preparation and characterization of Ti0.7Sn0.3O2 as catalyst support for oxygen reduction reaction
	Gao, Yuan 1,2; Hou, Ming 1; Shao, Zhigang 1; Zhang, Changkun 1,2; Qin, Xiaoping 1; Yi, Baolian 1
刊名	journal of energy chemistry
	2014-05-01
卷号	23 期号:3 页码:331-337
关键词	tin titanium oxide support durability proton exchange membrane fuel cells
通讯作者	侯明 ; 邵志刚
产权排序	待补充
合作状况	英
英文摘要	sn-doped tio2 nanoparticles with high surface area of 125.7 m(2).g(-1) are synthesized via a simple one-step hydrothermal method and explored as the cathode catalyst support for proton exchange membrane fuel cells. the synthesized support materials are studied by x-ray diffraction analysis, energy dispersive x-ray spectroscopy and transmission electron microscopy. it is found that the conductivity has been greatly improved by the addition of 30 mol% sn and pt nanoparticles are well dispersed on ti0.7sn0.3o2 support with an average size of 2.44 nm. electrochemical studies show that the ti0.7sn0.3o2 nanoparticles have excellent electrochemical stability under a high potential compared to vulcan xc-72. the as-synthesized pt/ti0.7sn0.3o2 exhibits high and stable electrocatalytic activity for the oxygen reduction reaction. the pt/ti0.7sn0.3o2 catalyst reserves most of its electrochemically active surface area (eca), and its half wave potential difference is 11 mv, which is lower than that of pt/xc-72 (36 mv) under 10 h potential hold at 1.4 v vs. nhe. in addition, the eca degradation of pt/ti0.7sn0.3o2 is 1.9 times lower than commercial pt/xc-72 under 500 potential cycles between 0.6 v and 1.2 v vs. nhe. therefore, the as synthesized pt/tio3sn0.3o2 can be considered as a promising alternative cathode catalyst for proton exchange membrane fuel cells.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; energy & fuels ; engineering, chemical
研究领域[WOS]	chemistry ; energy & fuels ; engineering
关键词[WOS]	membrane fuel-cells ; carbon-free ; electrocatalysts ; degradation ; stability ; platinum ; nanoparticles ; durability ; oxide ; sno2
收录类别	SCI
资助信息	1，1
原文出处	337
语种	英语
WOS记录号	WOS:000336645200012
公开日期	2014-09-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/119716]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yuan,Hou, Ming,Shao, Zhigang,et al. Preparation and characterization of Ti0.7Sn0.3O2 as catalyst support for oxygen reduction reaction[J]. journal of energy chemistry,2014,23(3):331-337.
APA	Gao, Yuan,Hou, Ming,Shao, Zhigang,Zhang, Changkun,Qin, Xiaoping,&Yi, Baolian.(2014).Preparation and characterization of Ti0.7Sn0.3O2 as catalyst support for oxygen reduction reaction.journal of energy chemistry,23(3),331-337.
MLA	Gao, Yuan,et al."Preparation and characterization of Ti0.7Sn0.3O2 as catalyst support for oxygen reduction reaction".journal of energy chemistry 23.3(2014):331-337.