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The influence of deposited potential on the ORR activity of Pt catalysts on glassy carbon electrode
Cao, Fengting1; Zang, Zhao2; Sun, Shimei1; Sun, Xiaolin1; Li, Xichao1; Liu, Tao1; Wu, Jianfei1
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
DOI10.1039/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
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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.
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