Comparison of the Oxygen Reduction Reaction between NaOH and KOH Solutions on a Pt Electrode: The Electrolyte-Dependent Effect

被引:156
作者
Jin, Wei [1 ,2 ]
Du, Hao [1 ]
Zheng, Shili [1 ]
Xu, Hongbin [1 ]
Zhang, Yi [1 ]
机构
[1] Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
REVERSIBLE POTENTIALS; ACTIVATION-ENERGIES; SUPEROXIDE ANION; SOLUBILITY; PLATINUM; SURFACE; WATER; ELECTROREDUCTION; ELECTROCATALYSIS; KINETICS;
D O I
10.1021/jp102367u
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The oxygen reduction reaction (ORR) on a polycrystalline Pt surface was studied using cyclic voltammetry techniques, and the influence of reaction media on the ORR is examined by comparing the ORR in NaOH and KOH solutions with concentration ranging from 0.5 to 14 M at 298 K. The results show that, in NaOH and KOH solutions, the ORR, a quasi-reversible diffusion-controlled reaction, is largely dependent on the electrolyte conditions, and KOH solutions are superior to NaOH solutions for the ORR process in both thermodynamic and kinetic consideration. As the alkaline concentration increases, the ORR performance frustrates, and the protonation of superoxide is suppressed; thus, the ORR shifts from a 2e reduction pathway to a le reduction pathway in both solutions.
引用
收藏
页码:6542 / 6548
页数:7
相关论文
共 54 条
[1]   ELECTROCATALYSIS OF OXYGEN ON SINGLE-CRYSTAL GOLD ELECTRODES [J].
ADZIC, RR ;
STRBAC, S ;
ANASTASIJEVIC, N .
MATERIALS CHEMISTRY AND PHYSICS, 1989, 22 (3-4) :349-375
[2]  
ADZIC RR, 1992, STRUCTURAL EFFECTS E, V2
[3]   OXYGEN REDUCTION ON THE AU (311) ELECTRODE SURFACE IN ALKALINE ELECTROLYTE [J].
ANASTASIJEVIC, NA ;
STRBAC, S ;
ADZIC, RR .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 240 (1-2) :239-252
[4]   Ab initio determination of reversible potentials and activation energies for outer-sphere oxygen reduction to water and the reverse oxidation reaction [J].
Anderson, AB ;
Albu, TV .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (50) :11855-11863
[5]   Activation energies for oxygen reduction on platinum alloys: Theory and experiment [J].
Anderson, AB ;
Roques, J ;
Mukerjee, S ;
Murthi, VS ;
Markovic, NM ;
Stamenkovic, V .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (03) :1198-1203
[6]   SOLVENT EFFECTS IN ORGANIC-CHEMISTRY .14. COMPLEXING OF SODIUM ION BY VARIOUS COMMON SOLVENTS AS LIGANDS IN ACETONE SOLUTIONS [J].
ARNETT, EM ;
CHAO, CC ;
KO, HC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1972, 94 (13) :4776-&
[7]   Electrochemical Oxidation of Ferrocene: A Strong Dependence on the Concentration of the Supporting Electrolyte for Nonpolar Solvents [J].
Bao, Duoduo ;
Millare, Brent ;
Xia, Wei ;
Steyer, Benjamin G. ;
Gerasimenko, Alexander A. ;
Ferreira, Amy ;
Contreras, Antonio ;
Vullev, Valentine I. .
JOURNAL OF PHYSICAL CHEMISTRY A, 2009, 113 (07) :1259-1267
[8]   Oxygen reduction on silver low-index single-crystal surfaces in alkaline solution:: Rotating ring DiskAg(hkl) studies [J].
Blizanac, BB ;
Ross, PN ;
Markovic, NM .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (10) :4735-4741
[9]   Calculating reversible potentials for Pt-H and Pt-OH bond formation in basic solutions [J].
Cai, Y ;
Anderson, AB .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (15) :7557-7563
[10]   Comparative methods for gas diffusivity and solubility determination in extreme media: Application to molecular oxygen in an industrial chlorine-soda electrolyte [J].
Chatenet, M ;
Aurousseau, M ;
Durand, R .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2000, 39 (08) :3083-3089