Electrochemical hydrogen evolution reaction on tungsten carbide

被引：0
作者：
Wiecek, B
机构：
来源：
POLISH JOURNAL OF CHEMISTRY | 1996年 / 70卷 / 03期
关键词：
hydrogen evolution; impedance; polarization; tungsten carbide;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Kinetics of hydrogen evolution on tungsten carbide (WC) electrode was investigated in 0.1M, 0.5M and 1.0M H2SO4 + 0.5M K2SO4 solutions in the temperature range 291-328 K. Steady state polarization and ac impedance spectroscopy were used to determine the electrode activity. The curves obtained are characterised by one Tafel section with the slope about 90 mV. The mechanism of hydrogen reactions was discussed. It suggested that the proton discharge determines the rate of the process.
引用
收藏
页码：343 / 353
页数：11
相关论文
共 44 条
[1]   CATHODIC HYDROGEN EVOLUTION ON TUNGSTEN SIGNIFICANCE OF DUAL TAFEL SLOPES [J].
AMMAR, IA ;
DARWISH, S ;
SALIM, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1974, 52 (03) :443-451
[2]   IMPEDANCE PLANE DISPLAY OF A REACTION WITH AN ADSORBED INTERMEDIATE [J].
ARMSTRONG, RD ;
HENDERSON, M .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1972, 39 (01) :81-+
[3]   TUNGSTEN CARBIDE CATALYSTS FOR HYDROGEN EVOLUTION [J].
ARMSTRONG, RD ;
BELL, MF .
ELECTROCHIMICA ACTA, 1978, 23 (11) :1111-1115
[4]  
ARMSTRONG RD, 1978, ELECTROCHIM ACTA, V24, P731
[5]   PROBLEM OF INSITU REAL-AREA DETERMINATION IN EVALUATION OF PERFORMANCE OF ROUGH OR POROUS, GAS-EVOLVING ELECTROCATALYSTS .2. UNFOLDING OF THE ELECTROCHEMICALLY ACCESSIBLE SURFACE OF ROUGH OR POROUS-ELECTRODES - A CASE-STUDY WITH AN ELECTRODEPOSITED POROUS PT ELECTRODE [J].
BAI, L ;
GAO, L ;
CONWAY, BE .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (02) :243-249
[6]  
Bianchi G., 1964, Z PHYS CHEM, V226, P40
[7]   TUNGSTEN CARBIDE ELECTRODES FOR FUEL CELLS WITH ACID ELECTROLYTE [J].
BINDER, H ;
KOHLING, A ;
KUHN, W ;
LINDNER, W ;
SANDSTEDE, G .
NATURE, 1969, 224 (5226) :1299-+
[8]   ADSORPTION AND ANODIC OXIDATION OF HYDROGEN ON TUNGSTEN CARBIDE [J].
BOHM, H .
ELECTROCHIMICA ACTA, 1970, 15 (07) :1273-&
[9]   NEW NON-NOBLE METAL ANODE CATALYSTS FOR ACID FUEL CELLS [J].
BOHM, H .
NATURE, 1970, 227 (5257) :483-&
[10]  
BOHM H, 1980, BER BUNSEN PHYS CHEM, V84, P1023
12345