Co3Mo3N—An efficient multifunctional electrocatalyst
Efficient catalysts are required for both oxidative and reductive reactions of hydrogen and oxygen in sustainable energy conversion devices. However, current precious metal-based electrocatalysts do not perform well across the full range of reactions and reported multifunctional catalysts are all co...
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doaj-fab0c6bf4d844ef7803df5a8ff31bb212021-05-28T05:04:35ZengElsevierThe Innovation2666-67582021-05-0122100096Co3Mo3N—An efficient multifunctional electrocatalystYao Yuan0Samira Adimi1Tiju Thomas2Jiacheng Wang3Haichuan Guo4Jian Chen5J. Paul Attfield6Francis J. DiSalvo7Minghui Yang8Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, ChinaDepartment of Metallurgical and Materials Engineering, Indian Institute of Technology Madras Adyar, Chennai 600036, Tamil Nadu, IndiaState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, ChinaDalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, ChinaCentre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, Edinburgh, EH9 3JZ, UK; Corresponding authorDepartment of Chemistry and Chemical Biology, Cornell University, New York, 14853, USA; Corresponding authorNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China; Corresponding authorEfficient catalysts are required for both oxidative and reductive reactions of hydrogen and oxygen in sustainable energy conversion devices. However, current precious metal-based electrocatalysts do not perform well across the full range of reactions and reported multifunctional catalysts are all complex hybrids. Here, we show that single-phase porous Co3Mo3N prepared via a facile method is an efficient and reliable electrocatalyst for three essential energy conversion reactions; oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and hydrogen evolution reaction (HER) in alkaline solutions. Co3Mo3N presents outstanding OER, ORR, and HER activity with high durability, comparable with the commercial catalysts RuO2 for OER and Pt/C for ORR and HER. In practical demonstrations, Co3Mo3N gives high specific capacity (850 mA h gZn−1 at 10 mA cm−2) as the cathode in a zinc-air battery, and a low potential (1.63 V at 10 mA cm−2) used in a water-splitting electrolyzer. Availability of Co and Mo d-states appear to result in high ORR and HER performance, while the OER properties result from a cobalt oxide-rich activation surface layer. Our findings will inspire further development of bimetallic nitrides as cost-effective and versatile multifunctional catalysts that will enable scalable usage of electrochemical energy devices.http://www.sciencedirect.com/science/article/pii/S2666675821000217ternary nitridesmultifunctional electrocatalystsrechargeable Zn-air batterieswater splitting |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yao Yuan Samira Adimi Tiju Thomas Jiacheng Wang Haichuan Guo Jian Chen J. Paul Attfield Francis J. DiSalvo Minghui Yang |
spellingShingle |
Yao Yuan Samira Adimi Tiju Thomas Jiacheng Wang Haichuan Guo Jian Chen J. Paul Attfield Francis J. DiSalvo Minghui Yang Co3Mo3N—An efficient multifunctional electrocatalyst The Innovation ternary nitrides multifunctional electrocatalysts rechargeable Zn-air batteries water splitting |
author_facet |
Yao Yuan Samira Adimi Tiju Thomas Jiacheng Wang Haichuan Guo Jian Chen J. Paul Attfield Francis J. DiSalvo Minghui Yang |
author_sort |
Yao Yuan |
title |
Co3Mo3N—An efficient multifunctional electrocatalyst |
title_short |
Co3Mo3N—An efficient multifunctional electrocatalyst |
title_full |
Co3Mo3N—An efficient multifunctional electrocatalyst |
title_fullStr |
Co3Mo3N—An efficient multifunctional electrocatalyst |
title_full_unstemmed |
Co3Mo3N—An efficient multifunctional electrocatalyst |
title_sort |
co3mo3n—an efficient multifunctional electrocatalyst |
publisher |
Elsevier |
series |
The Innovation |
issn |
2666-6758 |
publishDate |
2021-05-01 |
description |
Efficient catalysts are required for both oxidative and reductive reactions of hydrogen and oxygen in sustainable energy conversion devices. However, current precious metal-based electrocatalysts do not perform well across the full range of reactions and reported multifunctional catalysts are all complex hybrids. Here, we show that single-phase porous Co3Mo3N prepared via a facile method is an efficient and reliable electrocatalyst for three essential energy conversion reactions; oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and hydrogen evolution reaction (HER) in alkaline solutions. Co3Mo3N presents outstanding OER, ORR, and HER activity with high durability, comparable with the commercial catalysts RuO2 for OER and Pt/C for ORR and HER. In practical demonstrations, Co3Mo3N gives high specific capacity (850 mA h gZn−1 at 10 mA cm−2) as the cathode in a zinc-air battery, and a low potential (1.63 V at 10 mA cm−2) used in a water-splitting electrolyzer. Availability of Co and Mo d-states appear to result in high ORR and HER performance, while the OER properties result from a cobalt oxide-rich activation surface layer. Our findings will inspire further development of bimetallic nitrides as cost-effective and versatile multifunctional catalysts that will enable scalable usage of electrochemical energy devices. |
topic |
ternary nitrides multifunctional electrocatalysts rechargeable Zn-air batteries water splitting |
url |
http://www.sciencedirect.com/science/article/pii/S2666675821000217 |
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