Home | My Profile | Contact Us
Research Trends Products  |   order gateway  |   author gateway  |   editor gateway  
Register | Forgot Password

Author Resources
 Author Gateway
 Article submission guidelines

Editor Resources
 Editor/Referee Gateway

 Regional Subscription Agents/Distributors
Current Topics in Electrochemistry   Volumes    Volume 2 
Mechanisitic studies of the hydrogen evolution reaction on nickel alloys
E. R. Gonzalez, G. Tremiliosi-Filho, M. J. de Giz
Pages: 167 - 194
Number of pages: 28
Current Topics in Electrochemistry
Volume 2 

Copyright © 1993 Research Trends. All rights reserved

The hydrogen evolution reaction is an electrochemical processes that has received wide attention because of its importance in both fundamental and technological electrochemistry. The electrocatalysis of this reaction is presently the object of many studies directed to the production of hydrogen by water electrolysis in alkaline solutions. This work describes the preparation and characterization of several nickel alloys prepared by electrodeposition on mild steel substrates. These low cost materials present a reduction of cathodic overpotential which amounts to 10-15% of the operational voltage of an electrolyser operating with mild steel cathodes, which means a significant reduction in the cost of the hydrogen produced. The surface composition of the alloys was determined by X-ray techniques and chemical analysis, and the morphology by SEM techniques. From an electrochemical point of view the stability of the materials was confirmed first by long term operation. The kinetics and mechanism of the hydrogen evolution reaction was then determined by classical techniques like the steady state current-potential behavior and by modern, powerful techniques like impedance spectroscopy. This detailed study of the characteristics of the reaction on several materials is essential to identify the fundamental parameters that must be optimized in an effective electrocatalyst.
Buy this Article


Buy this article
Buy this volume
Subscribe to this title
Shopping Cart

Quick Links
Search Products
Browse in Alphabetical Order : Journals
Browse by Subject Classification : Journals

Ordering Information Ordering Information
Downloadable forms Downloadable Forms