HYDROGEN EVOLUTION ON HIGHLY POROUS RANEY-NICKEL CATHODES IN ALKALINE ELECTROLYTE

被引：10

作者：

BRENNECKE, PW ^{[1
]}

EWE, HH ^{[1
]}

机构：

[1] TECH UNIV BRAUNSCHWEIG,PHYS ZENTRUM,W-3300 BRAUNSCHWEIG,GERMANY

来源：

ENERGY CONVERSION AND MANAGEMENT | 1991年 / 31卷 / 06期

关键词：

WATER ELECTROLYSIS; HYDROGEN ECONOMY; HYDROGEN EVOLUTION REACTION; HIGHLY POROUS NICKEL CATHODE; RANEY NICKEL CATALYST; DOUBLE SKELETON CATALYST ELECTRODE; ALKALINE ELECTROLYTE OVER-VOLTAGE REDUCTION;

D O I：

10.1016/0196-8904(91)90093-X

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In order to reduce the high electrical energy demand of alkaline water electrolyzers, the structure of nickel cathodes is improved by using highly porous electrodes hot pressed from carbonyl nickel powders. The performance of such cathodes is further improved by adding very active Raney nickel catalysts. The eta, i-characteristics measured at various temperatures and galvanostatic long-term experiments are used to evaluate the operational characteristics of porous nickel cathodes. It may be concluded that porous cathodes with Raney nickel catalysts offer a fair improvement to water electrolysis. In particular, the rather small polarization voltages are of great advantage concerning the energy consumption of an electrolyzer.

引用

页码：585 / 594

页数：10

共 24 条

[1]

Bockris, Energy—The Solar-Hydrogen Alternative, (1976)

[2]

Dahlberg, Int. J. Hydrogen Energy, 7, (1982)

[3]

Justi, A Solar-Hydrogen Energy System, (1987)

[4]

Vetter, Kinetik der elektrolytischen Abscheidung von Wasserstoff und Sauerstoff, Angewandte Chemie, 73, (1961)

[5]

Lee, Hydrogen Over potential on Pure Metals in Alkaline Solution, Journal of The Electrochemical Society, 118, (1971)

[6]

Justi, Winsel, Kalte Verbrennung—Fuel Cells, (1962)

[7]

Dousek, Jansta, Riha, Katalysatoren für die elektroden von brennstoffelementen I. Darstellung eines trockenen, nichtpyrophoren nickelkatalysators aus Raney-legierung und seine elektrochemischen eigenschaften, Collection of Czechoslovak Chemical Communications, 31, (1966)

[8]

von Dohren, Kalberlah, Raney-Nickel als Katalysator in galvanischen Brennstoffzellen, Chemie Ingenieur Technik - CIT, 40, (1968)

[9]

von Sturm, Cobloch, Nischik, Marchetto, Abhandl. Sächs. Akad. Wiss. Leipzig, Math.-naturwiss. Klasse, 49, (1968)

[10]

Ewe, Justi, Selbach, Energy Convers. Mgmt, 23, (1983)

← 1 2 3 →