Cobalt and iron phosphates with modulated compositions and phases as efficient electrocatalysts for alkaline seawater oxidation

An electrocatalyst which is suitable for use in both fresh water and real seawater electrolysis is very uncommon. In this work, we have developed a series of iron-tuned cobalt phosphates and cobalt-tuned iron phosphate solid solutions as electrocatalysts exhibiting excellent OER activities not only...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2022-06, Vol.58 (47), p.6761-6764
Main Authors: Das, Chandni, Roy, Poulomi
Format: Article
Language:English
Subjects:
Cobalt
Electrocatalysts
Electrolysis
Fresh water
Iron
Oxidation
Phosphates
Seawater
Solid solutions
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Summary:An electrocatalyst which is suitable for use in both fresh water and real seawater electrolysis is very uncommon. In this work, we have developed a series of iron-tuned cobalt phosphates and cobalt-tuned iron phosphate solid solutions as electrocatalysts exhibiting excellent OER activities not only in freshwater but also in alkaline real seawater with a faradaic efficiency of 95%. Cobalt and iron phosphates with controlled metal content, phases and morphology lead to an efficient as well as durable electrocatalyst for alkaline seawater splitting with selective OER over CER.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc01363k