Electrocatalytic hydrogenation of phenol on dispersed Pt: reaction mechanism and support effect

被引：35

作者：

Amouzegar, K ^{[1
]}

Savadogo, O ^{[1
]}

机构：

[1] Ecole Polytech, Lab Electrochim & Mat Energet, Montreal, PQ H3C 2A7, Canada

来源：

ELECTROCHIMICA ACTA | 1998年 / 43卷 / 5-6期

关键词：

electrocatalysis; hydrogenation; organics; platinum;

D O I：

10.1016/S0013-4686(97)00131-X

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrocatalytic hydrogenation of phenol on highly dispersed Pt on carbon has been investigated. The comparison of the hydrogenation performance of Pt/C and Pt/Pt electrodes containing the same amount of Pt or the same real electrochemical surface area shows that Pt/C electrode is electrocatalytically more active. Explanations related to this difference in activity are discussed. The study of the reaction mechanism suggests that the surface reaction between adsorbed species is the rate determining step which is the same as that proposed for platinized platinum electrode. (C) 1997 Elsevier Science Ltd.

引用

页码：503 / 508

页数：6

共 23 条

[1] ELECTROCATALYTIC HYDROGENATION OF PHENOL ON HIGHLY DISPERSED PT ELECTRODES [J].

AMOUZEGAR, K ;

SAVADOGO, O .

ELECTROCHIMICA ACTA, 1994, 39 (04) :557-559

[2] Electrocatalytic hydrogenation of phenol on dispersed Pt: Effect of metal electrochemically active surface area and electrode material [J].

Amouzegar, K ;

Savadogo, O .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1997, 27 (05) :539-542

[3] ELECTROCATALYSTS ON SUPPORTS .1. ELECTROCHEMICAL AND ADSORPTIVE PROPERTIES OF PLATINUM MICRODEPOSITS ON INERT SUPPORTS [J].

BAGOTZKY, VS ;

SKUNDIN, AM .

ELECTROCHIMICA ACTA, 1984, 29 (06) :757-765

[4]

BANCROFT WD, 1930, T AM ELECTROCHEM SOC, V57, P399

[5]

Beck F., 1979, INT CHEM ENG, V19, P1

[6]

BOCKRIS JO, 1973, MODERN ELECTROCHEMIS, pCH9

[7] X-RAY PHOTOELECTRON-SPECTROSCOPY AND ELECTRON-MICROSCOPY OF PT-RH GAUZES USED FOR CATALYTIC-OXIDATION OF AMMONIA [J].

CONTOUR, JP ;

MOUVIER, G ;

HOOGEWYS, M ;

LECLERE, C .

JOURNAL OF CATALYSIS, 1977, 48 (1-3) :217-228

[8]

COX LE, 1971, J ELECT SPECTROSC RE, V1, P193

[9] THE CHEMICAL AND ELECTRONIC-STRUCTURE OF THE INTERFACE BETWEEN ALUMINUM AND POLYTHIOPHENE SEMICONDUCTORS [J].

DANNETUN, P ;

BOMAN, M ;

STAFSTROM, S ;

SALANECK, WR ;

LAZZARONI, R ;

FREDRIKSSON, C ;

BREDAS, JL ;

ZAMBONI, R ;

TALIANI, C .

JOURNAL OF CHEMICAL PHYSICS, 1993, 99 (01) :664-672

[10] STATE OF SUPPORTED IRIDIUM IN A HYDRAZINE DECOMPOSITION CATALYST [J].

ESCARD, J ;

LECLERE, C ;

CONTOUR, JP .

JOURNAL OF CATALYSIS, 1973, 29 (01) :31-39

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