Next Article in Journal
Comparison of the Utilization of 110 °C and 120 °C Heat Sources in a Geothermal Energy System Using Organic Rankine Cycle (ORC) with R245fa, R123, and Mixed-Ratio Fluids as Working Fluids
Previous Article in Journal
Parallel Conical Area Community Detection Using Evolutionary Multi-Objective Optimization
Previous Article in Special Issue
Multi-Tubular Reactor for Hydrogen Production: CFD Thermal Design and Experimental Testing
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Processes 2019, 7(2), 112; https://doi.org/10.3390/pr7020112

Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings

Energy Safety Research Institute, Swansea University Bay Campus, Fabian way, Swansea SA1 8EN, UK
*
Author to whom correspondence should be addressed.
Received: 10 January 2019 / Revised: 14 February 2019 / Accepted: 18 February 2019 / Published: 21 February 2019
(This article belongs to the Special Issue Hydrogen Production Technologies)
Full-Text   |   PDF [4858 KB, uploaded 21 February 2019]   |  

Abstract

The use of hydrogen gas as a means of decoupling supply from demand is crucial for the transition to carbon-neutral energy sources and a greener, more distributed energy landscape. This work shows how simple commercially available titanium nitride coatings can be used to extend the lifetime of 316 grade stainless-steel electrodes for use as the cathode in an alkaline electrolysis cell. The material was subjected to accelerated ageing, with the specific aim of assessing the coating’s suitability for use with intermittent renewable energy sources. Over 2000 cycles lasting 5.5 days, an electrolytic cell featuring the coating outperformed a control cell by 250 mV, and a reduction of overpotential at the cathode of 400 mV was observed. This work also confirms that the coating is solely suitable for cathodic use and presents an analysis of the surface changes that occur if it is used anodically. View Full-Text
Keywords: titanium nitride; stainless steel; alkaline electrolysis; energy storage titanium nitride; stainless steel; alkaline electrolysis; energy storage
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Gannon, W.J.F.; Jones, D.R.; Dunnill, C.W. Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings. Processes 2019, 7, 112.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Processes EISSN 2227-9717 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top