Electrochemical Reduction of CO2 to CH3OH at Copper Oxide Surfaces

被引：415

作者：

Le, M. ^{[1
,2
]}

Ren, M. ^{[1
,2
]}

Zhang, Z. ^{[3
]}

Sprunger, P. T. ^{[2
,3
]}

Kurtz, R. L. ^{[2
,3
]}

Flake, J. C. ^{[1
,2
]}

机构：

[1] Louisiana State Univ, Gordon & Mary Cain Dept Chem Engn, Baton Rouge, LA 70803 USA

[2] Louisiana State Univ, Energy Frontier Res Ctr, Baton Rouge, LA 70803 USA

[3] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2011年 / 158卷 / 05期

关键词：

CU/ZNO-BASED CATALYSTS; METHANOL SYNTHESIS; CARBON-DIOXIDE; METAL-ELECTRODES; HYDROGENATION; DEPOSITION; CU(100);

D O I：

10.1149/1.3561636

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The direct reduction of CO2 to CH3OH is known to occur at several types of electrocatalysts including oxidized Cu electrodes. In this work, we examine the yield behavior of an electrodeposited cuprous oxide thin film and explore relationships between surface chemistry and reaction behavior relative to air-oxidized and anodized Cu electrodes. CH3OH yields (43 mu mol cm(-2) h(-1)) and Faradaic efficiencies (38%) observed at cuprous oxide electrodes were remarkably higher than air-oxidized or anodized Cu electrodes suggesting Cu(I) species may play a critical role in selectivity to CH3OH. Experimental results also show CH3OH yields are dynamic and the copper oxides are reduced to metallic Cu in a simultaneous process. Yield behavior is discussed in comparison with photoelectrochemical and hydrogenation reactions where the improved stability of Cu(I) species may allow continuous CH3OH generation. (C) 2011 The Electrochemical Society. [DOI: 10.1149/1.3561636] All rights reserved.

引用

页码：E45 / E49

页数：5

共 45 条

[1] ELECTROCHEMICAL REDUCTION OF CARBON-DIOXIDE ON VARIOUS METAL-ELECTRODES IN LOW-TEMPERATURE AQUEOUS KHCO3 MEDIA [J].

AZUMA, M ;

HASHIMOTO, K ;

HIRAMOTO, M ;

WATANABE, M ;

SAKATA, T .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1990, 137 (06) :1772-1778

[2] A DRIFTS STUDY OF THE MORPHOLOGY AND SURFACE ADSORBATE COMPOSITION OF AN OPERATING METHANOL SYNTHESIS CATALYST [J].

BAILEY, S ;

FROMENT, GF ;

SNOECK, JW ;

WAUGH, KC .

CATALYSIS LETTERS, 1995, 30 (1-4) :99-111

[3] ELECTROCHEMICAL REDUCTION OF CARBON-DIOXIDE ON CONDUCTIVE METALLIC OXIDES [J].

BANDI, A .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1990, 137 (07) :2157-2160

[4] REDUCTION OF CARBON-DIOXIDE TO METHANOL ON N-GAAS AND P-GAAS AND P-INP - EFFECT OF CRYSTAL-FACE, ELECTROLYTE AND CURRENT-DENSITY [J].

CANFIELD, D ;

FRESE, KW .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1983, 130 (08) :1772-1773

[5] THE ACTIVITY AND STATE OF THE COPPER SURFACE IN METHANOL SYNTHESIS CATALYSTS [J].

CHINCHEN, GC ;

WAUGH, KC ;

WHAN, DA .

APPLIED CATALYSIS, 1986, 25 (1-2) :101-107

[6] PROMOTION OF METHANOL SYNTHESIS AND THE WATER-GAS SHIFT REACTIONS BY ADSORBED OXYGEN ON SUPPORTED COPPER-CATALYSTS [J].

CHINCHEN, GC ;

SPENCER, MS ;

WAUGH, KC ;

WHAN, DA .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 :2193-2212

[7] METHANOL DECOMPOSITION ON SINGLE-CRYSTAL CU2O [J].

COX, DF ;

SCHULZ, KH .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1990, 8 (03) :2599-2604

[8] ELECTROCHEMICAL REDUCTION OF CARBON-DIOXIDE TO METHANE, METHANOL, AND CO ON RU ELECTRODES [J].

FRESE, KW ;

LEACH, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1985, 132 (01) :259-260

[9] ELECTROCHEMICAL REDUCTION OF CO2 AT INTENTIONALLY OXIDIZED COPPER ELECTRODES [J].

FRESE, KW .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (11) :3338-3344

[10] The chemical modification seen in the Cu/ZnO methanol synthesis catalysts [J].

Fujitani, T ;

Nakamura, J .

APPLIED CATALYSIS A-GENERAL, 2000, 191 (1-2) :111-129

← 1 2 3 4 5 →