Electrocatalytic Activity and Durability of Li x Ni2-x O2/Ni Electrode Prepared by Oxidation with LiOH Melt for Alkaline Water Electrolysis

Electrocatalytic Activity and Durability of Li x Ni2-x O2/Ni Electrode Prepared by Oxidation with... Alkaline water electrolysis (AWE) is suitable for hydrogen production to develop a fluctuating and uneven-distributed renewable energy-based energy system, because hydrogen is a secondary energy which is suitable to large-scale storage and transportation, and the AWE has a simple configuration using low-cost materials. In this system, the anode typically using Ni and Ni alloys is degraded during the fluctuation of electricity from renewable energy. This degradation is related to the surface hydrous oxide layer which contains Ni(II) and Ni(III). During potential cycling, the hydrous oxide layer grows and increases the electronic resistance due to the redox of Ni(II)/Ni(III) and Ni(III)/Ni(IV). In order to improve the durability and catalytic activity by stabilization of the surface using an electroconductive oxide, a Li x Ni2-x O2/Ni has been developed. The surface oxide was prepared by the oxidation of Ni with a LiOH melt. The Li-doped amount for the surface oxide prepared at 1000 °C was homogeneous with a cubic crystalline structure. On the other hand, the crystalline structure prepared at 800 °C was a mixture of the trigonal and cubic Li-doped NiO phases, which has a high and low Li content, respectively. The oxide layer conductivity increased with the Li-doped amount. The excess Li-doped amount increased not only the conductivity of the oxide layer but also the deactivation of the oxygen evolution reaction (OER) electrocatalytic activity. The durability of the Li x Ni2-x O2/Ni under potential cycling was higher than that of Ni for both the OER activity and redox change of Ni(II)/Ni(III) and Ni(III)/Ni(IV). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Electrocatalysis Springer Journals

Electrocatalytic Activity and Durability of Li x Ni2-x O2/Ni Electrode Prepared by Oxidation with LiOH Melt for Alkaline Water Electrolysis

Loading next page...
Springer US
Copyright © 2017 by Springer Science+Business Media New York
Chemistry; Electrochemistry; Physical Chemistry; Catalysis; Energy Technology
Publisher site
See Article on Publisher Site

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial