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Selective Production of Oxygen from Seawater by Oxidic Metallate Catalysts.

ABSTRACT: Although the emphasis of water splitting is typically on hydrogen generation, there is a value in the oxygen byproduct especially for life support in field operations. For such applications, the production of a pure, unadulterated oxygen stream is highly desired under environmental conditions. Here, we demonstrate that self-healing oxygen evolution catalysts composed of cobalt or nickel are capable of selectively producing oxygen from both 0.5 M NaCl solutions and seawater. Differential electrochemical mass spectrometry demonstrates the absence of halogen in the product stream, and chemical analysis shows the production of only minute amounts of hypohalous acid.

SUBMITTER: Keane TP

PROVIDER: S-EPMC6690569 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Selective Production of Oxygen from Seawater by Oxidic Metallate Catalysts.

Keane Thomas P TP Nocera Daniel G DG

ACS omega 20190730 7

Although the emphasis of water splitting is typically on hydrogen generation, there is a value in the oxygen byproduct especially for life support in field operations. For such applications, the production of a pure, unadulterated oxygen stream is highly desired under environmental conditions. Here, we demonstrate that self-healing oxygen evolution catalysts composed of cobalt or nickel are capable of selectively producing oxygen from both 0.5 M NaCl solutions and seawater. Differential electroc ...[more]

PMID: 31460412

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