Structural effect on the rate of CO2 reduction on single crystal electrodes of palladium

被引：72

作者：

Hoshi, N

Noma, M

Suzuki, T

Hori, Y

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Chiba University, Chiba 263, 1-33 Yayoi-cho, Inage-ku

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1997年 / 421卷 / 1-2期

关键词：

reduction of CO2; single crystals of Pd; reaction rate;

D O I：

10.1016/S0022-0728(96)01023-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The structural effect on the rate of CO2 reduction was studied with voltammetry on single crystals of Pd (Pd(111), Pd(100), Pd(110)) in 0.1 M HClO4 saturated with CO2. CO2 was reduced to an adsorbed product at potentials more negative than -0.1 V vs. RHE. The rate of CO2 reduction depends remarkably on the crystal orientation: Pd(100) < Pd(lll) < Pd(110). The Pd(111) surface shows uniquely high activity, whereas (111) is the surface of lowest activity in CO2 reduction for other Pt group metals (Pt, Ph, Ir). The rate of CO2 reduction at -0.5 V vs. RHE on Pd(110) is two orders of magnitude higher than that of Pt(110).

引用

页码：15 / 18

页数：4

共 24 条

[1] AREBALO MC, 1994, ELECTROCHIM ACTA, V39, P793
[2] ON THE NATURE OF REDUCED CO2 AN IR SPECTROSCOPIC INVESTIGATION
BEDEN, B
BEWICK, A
RAZAQ, M
WEBER, J
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1982, 139 (01) : 203 - 206
[3] ON NATURE OF REDUCED CARBON DIOXIDE
BREITER, MW
[J]. ELECTROCHIMICA ACTA, 1967, 12 (09) : 1213 - &
[4] PREPARATION OF MONO-CRYSTALLINE PT MICROELECTRODES AND ELECTROCHEMICAL STUDY OF THE PLANE SURFACES CUT IN THE DIRECTION OF THE (111) AND (110) PLANES
CLAVILIER, J
FAURE, R
GUINET, G
DURAND, R
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1980, 107 (01): : 205 - 209
[5] Giner J, 1963, Electrochim Acta, V8, P857, DOI [10.1016/0013-4686(63)80054-7, DOI 10.1016/0013-4686(63)80054-7]
[6] ELECTROCATALYTIC PROCESS OF CO SELECTIVITY IN ELECTROCHEMICAL REDUCTION OF CO2 AT METAL-ELECTRODES IN AQUEOUS-MEDIA
HORI, Y
WAKEBE, H
TSUKAMOTO, T
KOGA, O
[J]. ELECTROCHIMICA ACTA, 1994, 39 (11-12) : 1833 - 1839
[7] FORMATION OF HYDROCARBONS IN THE ELECTROCHEMICAL REDUCTION OF CARBON-DIOXIDE AT A COPPER ELECTRODE IN AQUEOUS-SOLUTION
HORI, Y
MURATA, A
TAKAHASHI, R
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1989, 85 : 2309 - 2326
[8] HORI Y, 1985, CHEM LETT, P1965
[9] CO2 REDUCTION ON RH SINGLE-CRYSTAL ELECTRODES AND THE STRUCTURAL EFFECT
HOSHI, N
ITO, H
SUZUKI, T
HORI, Y
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1995, 395 (1-2): : 309 - 312
[10] Step density dependence of CO2 reduction rate on Pt(S)-[n(111)x(111)] single crystal electrodes
Hoshi, N
Suzuki, T
Hori, Y
[J]. ELECTROCHIMICA ACTA, 1996, 41 (10) : 1647 - 1653

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