Electrochemical reduction of carbondioxide on polypyrrole coated copper electro-catalyst under ambient and high pressure in methanol

被引：64

作者：

Aydin, Rezzan ^{[1
]}

Dogan, Hulya Ozturk ^{[2
]}

Koleli, Fatih ^{[1
]}

机构：

[1] Mersin Univ, Fac Arts & Sci, Dept Chem, TR-33342 Mersin, Turkey

[2] Ataturk Univ, Fac Arts & Sci, Dept Chem, TR-25240 Erzurum, Turkey

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2013年 / 140卷

关键词：

CO2; reduction; Copper; Polypyrrole electrode; High pressure; Methane; FIXED-BED REACTOR; CARBON-DIOXIDE REDUCTION; CU ALLOY ELECTRODES; CO2; REDUCTION; LOW-TEMPERATURE; POLYANILINE ELECTRODE; FORMIC-ACID; SUPPORTING ELECTROLYTES; GRANULE ELECTRODES; AQUEOUS-SOLUTION;

D O I：

10.1016/j.apcatb.2013.04.021

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 electro-reduction of CO2 was investigated on a polypyrrole-coated copper catalyst, for the first time. The experiments were carried out at different pressure conditions (1, 10, 20, 40 and 60 bars), varying film thicknesses (0.5, 0.9, 1.4, 2.1 and 5.4 mu m) and at different potential values (-0.8, -1.0, -1.5, -2.0, -2.5, -3.0 V Pb(Hg)(x)/PbSO4/SO4-2) in CH3OH/0.1 M LiClO4/H+ electrolyte system. At -0.8 V and -1.0 V, it was obtained only HCOOH and CH3COOH. At more negative values, gaseous products such as CH4, C2H4, C2H6 and CO were detected, additionally. The coating of copper electro-catalyst with a conducting polymer causes a shifting of the product distribution to hydrocarbons, especially to methane. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：478 / 482

页数：5

共 44 条

[1] Electrocatalytic conversion of CO2 on a polypyrrole electrode under high pressure in methanol [J].

Aydin, R ;

Köleli, F .

SYNTHETIC METALS, 2004, 144 (01) :75-80

[2] Electrochemical reduction of CO2 on a polyaniline electrode under ambient conditions and at high pressure in methanol [J].

Aydin, R ;

Köleli, F .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2002, 535 (1-2) :107-112

[3] Hydrogen evolution on conducting polymer electrodes in acidic media [J].

Aydin, Rezzan ;

Koeleli, Fatih .

PROGRESS IN ORGANIC COATINGS, 2006, 56 (01) :76-80

[4]

Cherashev AF, 1997, RUSS J ELECTROCHEM+, V33, P181

[5] ON THE ELECTROCHEMICAL REDUCTION OF CARBON-DIOXIDE AT INSITU ELECTRODEPOSITED COPPER [J].

COOK, RL ;

MACDUFF, RC ;

SAMMELLS, AF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (06) :1320-1326

[6] HIGH-RATE GAS-PHASE CO2 REDUCTION TO ETHYLENE AND METHANE USING GAS-DIFFUSION ELECTRODES [J].

COOK, RL ;

MACDUFF, RC ;

SAMMELLS, AF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1990, 137 (02) :607-608

[7] EVIDENCE FOR FORMALDEHYDE, FORMIC-ACID, AND ACETALDEHYDE AS POSSIBLE INTERMEDIATES DURING ELECTROCHEMICAL CARBON-DIOXIDE REDUCTION AT COPPER [J].

COOK, RL ;

MACDUFF, RC ;

SAMMELLS, AF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (07) :1982-1984

[8] ELECTROCHEMICAL AND SURFACE STUDIES OF CARBON-DIOXIDE REDUCTION TO METHANE AND ETHYLENE AT COPPER ELECTRODES IN AQUEOUS-SOLUTIONS [J].

DEWULF, DW ;

JIN, T ;

BARD, AJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (06) :1686-1691

[9] Influence of adsorption processes on the CO2 electroreduction:: An electrochemical mass spectrometry study [J].

Dubé, P ;

Brisard, GM .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 582 (1-2) :230-240

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

FRESE, KW .

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

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