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

WILLIAM GANNON, Daniel Jones, Charlie Dunnill Orcid Logo

Processes, Volume: 7, Issue: 2, Start page: 112

Swansea University Authors: WILLIAM GANNON, Daniel Jones, Charlie Dunnill Orcid Logo

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DOI (Published version): 10.3390/pr7020112

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 g...

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Published in: Processes
ISSN: 2227-9717
Published: MDPI AG 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa49702
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first_indexed 2019-03-26T12:24:07Z
last_indexed 2020-10-20T03:00:01Z
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spelling 2020-10-19T12:07:25.4465778 v2 49702 2019-03-25 Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings d8b4bec381730088c9fa8aad0f5ae13d WILLIAM GANNON WILLIAM GANNON true true 88aaf2ee4c51d4405ef7f81e2e8f7bdb Daniel Jones Daniel Jones true false 0c4af8958eda0d2e914a5edc3210cd9e 0000-0003-4052-6931 Charlie Dunnill Charlie Dunnill true false 2019-03-25 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. Journal Article Processes 7 2 112 MDPI AG 2227-9717 titanium nitride; stainless steel; alkaline electrolysis; energy storage 31 12 2019 2019-12-31 10.3390/pr7020112 COLLEGE NANME COLLEGE CODE Swansea University 2020-10-19T12:07:25.4465778 2019-03-25T10:27:20.5004335 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised WILLIAM GANNON 1 Daniel Jones 2 Charlie Dunnill 0000-0003-4052-6931 3 0049702-25032019102923.pdf gannon2019.pdf 2019-03-25T10:29:23.7630000 Output 4567375 application/pdf Version of Record true 2019-03-25T00:00:00.0000000 true eng
title Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings
spellingShingle Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings
WILLIAM GANNON
Daniel Jones
Charlie Dunnill
title_short Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings
title_full Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings
title_fullStr Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings
title_full_unstemmed Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings
title_sort Enhanced Lifetime Cathode for Alkaline Electrolysis Using Standard Commercial Titanium Nitride Coatings
author_id_str_mv d8b4bec381730088c9fa8aad0f5ae13d
88aaf2ee4c51d4405ef7f81e2e8f7bdb
0c4af8958eda0d2e914a5edc3210cd9e
author_id_fullname_str_mv d8b4bec381730088c9fa8aad0f5ae13d_***_WILLIAM GANNON
88aaf2ee4c51d4405ef7f81e2e8f7bdb_***_Daniel Jones
0c4af8958eda0d2e914a5edc3210cd9e_***_Charlie Dunnill
author WILLIAM GANNON
Daniel Jones
Charlie Dunnill
author2 WILLIAM GANNON
Daniel Jones
Charlie Dunnill
format Journal article
container_title Processes
container_volume 7
container_issue 2
container_start_page 112
publishDate 2019
institution Swansea University
issn 2227-9717
doi_str_mv 10.3390/pr7020112
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description 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.
published_date 2019-12-31T04:00:53Z
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score 11.017797

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