Shipman, M. A. and Symes, M. D. (2017) A re-evaluation of Sn(II) phthalocyanine as a catalyst for the electrosynthesis of ammonia. Electrochimica Acta, 258, pp. 918-622. (doi: 10.1016/j.electacta.2017.11.105)
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Abstract
The electrosynthesis of ammonia from nitrogen and water is a topic of considerable interest in the quest for sustainable and decentralized NH3 production. Tin(II) phthalocyanine complexes have been proposed as electrocatalysts for nitrogen reduction to ammonia in aqueous solution, with Faradaic yields approaching 2% having been reported. Herein, however, we show that such complexes are not electrocatalysts for this transformation, with the amount of ammonia detected being essentially the same under N2 and under Ar. Instead, we suggest that apparent ammonia generation could arise either through contaminants in the as-prepared tin (II) phthalocyanine complexes, or by the electro-decomposition of these complexes under cathodic bias.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Symes, Professor Mark and Shipman, Mr Michael |
Authors: | Shipman, M. A., and Symes, M. D. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Electrochimica Acta |
Publisher: | Elsevier |
ISSN: | 0013-4686 |
ISSN (Online): | 1873-3859 |
Published Online: | 21 November 2017 |
Copyright Holders: | Copyright © 2017 Elsevier |
First Published: | First published in Electrochimica Acta 258:618-622 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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