The influence of deposited potential on the ORR activity of Pt catalysts on glassy carbon electrode

doi:10.1039/c7ra02444d

QIBEBT-IR > 先进储能材料与技术研究组

	The influence of deposited potential on the ORR activity of Pt catalysts on glassy carbon electrode
	Cao, Fengting 1; Zang, Zhao 2; Sun, Shimei 1; Sun, Xiaolin 1; Li, Xichao 1; Liu, Tao 1; Wu, Jianfei 1
	2017
发表期刊	RSC ADVANCES
卷号	7 期号:41 页码:25429-25436
摘要	In this study, Pt catalysts were fabricated on a glassy carbon (GC) electrode Pt/GC using a potentiostatic technique at different reduction potentials in potassium hexachloroplatinate solutions with hydrochloric acid. The compositions of the catalysts were determined using energy dispersive spectroscopy (EDS), the surface morphologies were observed using scanning electron microscopy (SEM), and the crystal structure was confirmed using thin-film X-ray diffraction (XRD). The results show that all the electrodeposited Pt/GC catalysts exhibit a higher electrochemical activity for the oxygen reduction reaction (ORR) when compared with a commercial Pt/C electrode. There is an optimum electrodeposited potential (-0.15 V vs. Ag/AgCl) at which the Pt/GC electrode displays the highest electrochemical activity for the ORR due to the high-index plane and shape effect of the Pt particles. At a lower electrodeposited potential, the applied current density is high enough to form large and coarse metal particles, while at a higher electrodeposited potential, the active sites of Pt particles decrease because of its equiaxed shape.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c7ra02444d
关键词[WOS]	OXYGEN REDUCTION REACTION ; FORMIC-ACID OXIDATION ; PEM FUEL-CELL ; ELECTROCATALYTIC ACTIVITY ; PLATINUM SURFACES ; MEDIA ; DURABILITY ; NANOPARTICLES ; ALLOY ; SIZE
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
项目资助者	National Natural Science Foundation of China(21673267)
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000401535100028
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9703
专题	先进储能材料与技术研究组
作者单位	1.Chinese Acad Sci, Qingdao Ind Energy Storage Res Inst, Qingdao Inst Bioenergy & Bioproc Technol, 189 Songling Rd, Qingdao 266101, Peoples R China 2.China Univ Petr, Coll Mech & Elect Engn, Qingdao 266580, Peoples R China
推荐引用方式 GB/T 7714	Cao, Fengting,Zang, Zhao,Sun, Shimei,et al. The influence of deposited potential on the ORR activity of Pt catalysts on glassy carbon electrode[J]. RSC ADVANCES,2017,7(41):25429-25436.
APA	Cao, Fengting.,Zang, Zhao.,Sun, Shimei.,Sun, Xiaolin.,Li, Xichao.,...&Wu, Jianfei.(2017).The influence of deposited potential on the ORR activity of Pt catalysts on glassy carbon electrode.RSC ADVANCES,7(41),25429-25436.
MLA	Cao, Fengting,et al."The influence of deposited potential on the ORR activity of Pt catalysts on glassy carbon electrode".RSC ADVANCES 7.41(2017):25429-25436.