Air Plasma Activation of Catalytic Sites in a Metal-Cyanide Framework for Efficient Oxygen Evolution Reaction

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Author(s)
Guo, Yanru
Wang, Teng
Chen, Jun
Zheng, Jie
Li, Xingguo
Ostrikov, Kostya Ken
Griffith University Author(s)
Year published
2018
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Targeted activation of highly ordered and distributed metal sites in nanoporous frameworks is a generic strategy to develop high‐performance catalysts. The key challenge is to achieve such activation without damaging the frameworks. Here it is demonstrated that atmospheric‐pressure low‐temperature plasma generated in air improve catalytic properties of an Fe/Co bimetallic cyanide framework through the specific “soft” incorporation of reactive oxygen species without affecting the framework structure. The bonding and oxidative states of the high‐density catalytic metal sites in the framework are modified while the nanoporous ...
View more >Targeted activation of highly ordered and distributed metal sites in nanoporous frameworks is a generic strategy to develop high‐performance catalysts. The key challenge is to achieve such activation without damaging the frameworks. Here it is demonstrated that atmospheric‐pressure low‐temperature plasma generated in air improve catalytic properties of an Fe/Co bimetallic cyanide framework through the specific “soft” incorporation of reactive oxygen species without affecting the framework structure. The bonding and oxidative states of the high‐density catalytic metal sites in the framework are modified while the nanoporous nature of the framework is retained, which leads to superior catalytic performance for the oxygen evolution reaction at high current densities close to the operation conditions of commercial alkaline electrolyzers.
View less >
View more >Targeted activation of highly ordered and distributed metal sites in nanoporous frameworks is a generic strategy to develop high‐performance catalysts. The key challenge is to achieve such activation without damaging the frameworks. Here it is demonstrated that atmospheric‐pressure low‐temperature plasma generated in air improve catalytic properties of an Fe/Co bimetallic cyanide framework through the specific “soft” incorporation of reactive oxygen species without affecting the framework structure. The bonding and oxidative states of the high‐density catalytic metal sites in the framework are modified while the nanoporous nature of the framework is retained, which leads to superior catalytic performance for the oxygen evolution reaction at high current densities close to the operation conditions of commercial alkaline electrolyzers.
View less >
Journal Title
ADVANCED ENERGY MATERIALS
Volume
8
Issue
18
Copyright Statement
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Air Plasma Activation of Catalytic Sites in a Metal‐Cyanide Framework for Efficient Oxygen Evolution Reaction, Advanced Energy Materials, Volume 8, Issue 18, which has been published in final form at https://doi.org/10.1002/aenm.201800085. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html)
Subject
Macromolecular and Materials Chemistry
Materials Engineering
Interdisciplinary Engineering