Pomegranate‐Inspired Design of Highly Active and Durable Bifunctional Electrocatalysts for Rechargeable Metal–Air Batteries
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- Ge Li
- Department of Chemical Engineering Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
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- Xiaolei Wang
- Department of Chemical Engineering Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
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- Jing Fu
- Department of Chemical Engineering Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
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- Jingde Li
- Department of Chemical Engineering Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
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- Moon Gyu Park
- Department of Chemical Engineering Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
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- Yining Zhang
- Department of Chemical Engineering Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
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- Gregory Lui
- Department of Chemical Engineering Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
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- Zhongwei Chen
- Department of Chemical Engineering Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
書誌事項
- 公開日
- 2016-03-11
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/anie.201600750
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>Rational design of highly active and durable electrocatalysts for oxygen reactions is critical for rechargeable metal–air batteries. Herein, we report the design and development of composite electrocatalysts based on transition metal oxide nanocrystals embedded in a nitrogen‐doped, partially graphitized carbon framework. Benefiting from the unique pomegranate‐like architecture, the composite catalysts possess abundant active sites, strong synergetic coupling, enhanced electron transfer, and high efficiencies in the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The Co<jats:sub>3</jats:sub>O<jats:sub>4</jats:sub>‐based composite electrocatalyst exhibited a high half‐wave potential of 0.842 V for ORR, and a low overpotential of only 450 mV at the current density of 10 mA cm<jats:sup>−2</jats:sup> for OER. A single‐cell zinc–air battery was also fabricated with superior durability, holding great promise in the practical implementation of rechargeable metal–air batteries.</jats:p>
収録刊行物
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- Angewandte Chemie International Edition
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Angewandte Chemie International Edition 55 (16), 4977-4982, 2016-03-11
Wiley
