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Nano Research 2020, 13(1): 79-85 https://doi.org/10.1007/s12274-019-2575-5
Research Article | Issue | Published: 09 December 2019

Ultrasonication-assisted and gram-scale synthesis of Co-LDH nanosheet aggregates for oxygen evolution reaction

Show Author's Information Tian-Jiao Wang1,§,  Xiaoyang Liu1,§,  Ying Li2,  Fumin Li2,  Ziwei Deng1( ),  Yu Chen1( )
Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
Second address, Department, University, City and Postcode, Country School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China

§ Tian-Jiao Wang and Xiaoyang Liu contributed equally to this work.

Keywords:
layered double hydroxides, oxygen evolution reaction, gram-scale synthesis, electrochemical water splitting, nanosheet aggregates
Topics:
ElectrocatalystsHydrogen productionNanosheetsOxygen
Cite this article:
Wang T-J, Liu X, Li Y, et al. Ultrasonication-assisted and gram-scale synthesis of Co-LDH nanosheet aggregates for oxygen evolution reaction. Nano Research, 2020, 13(1): 79-85. https://doi.org/10.1007/s12274-019-2575-5
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Abstract Full text Electronic supplementary material About this article

Electrochemical water splitting (EWS) is a highly clean and efficient method for high-purity hydrogen production. Unfortunately, EWS suffers from the sluggish and complex oxygen evolution reaction (OER) kinetics at anode. At present, the efficient, stable, and low-cost non-precious metal based OER electrocatalyst is still a great and long-term challenge for the future industrial application of EWS technology. Herein, we develop a simple and fast approach for gram-scale synthesis of flower-like cobalt-based layered double hydroxides nanosheet aggregates by ultrasonic synthesis, which show outstanding electrocatalytic performance for the oxygen evolution reaction in alkaline media, such as preeminent stability, small overpotential of 300 mV at 10 mA·cm-2 and small Tafel slope of 110 mV·dec-1.


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About this article

Ultrasonication-assisted and gram-scale synthesis of Co-LDH nanosheet aggregates for oxygen evolution reaction

Show Author's information Tian-Jiao Wang1,§, Xiaoyang Liu1,§, Ying Li2, Fumin Li2, Ziwei Deng1( ), Yu Chen1( )
Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
Second address, Department, University, City and Postcode, Country School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China

§ Tian-Jiao Wang and Xiaoyang Liu contributed equally to this work.

Abstract

Electrochemical water splitting (EWS) is a highly clean and efficient method for high-purity hydrogen production. Unfortunately, EWS suffers from the sluggish and complex oxygen evolution reaction (OER) kinetics at anode. At present, the efficient, stable, and low-cost non-precious metal based OER electrocatalyst is still a great and long-term challenge for the future industrial application of EWS technology. Herein, we develop a simple and fast approach for gram-scale synthesis of flower-like cobalt-based layered double hydroxides nanosheet aggregates by ultrasonic synthesis, which show outstanding electrocatalytic performance for the oxygen evolution reaction in alkaline media, such as preeminent stability, small overpotential of 300 mV at 10 mA·cm-2 and small Tafel slope of 110 mV·dec-1.

Keywords: layered double hydroxides, oxygen evolution reaction, gram-scale synthesis, electrochemical water splitting, nanosheet aggregates

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Publication history
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Acknowledgements

Publication history

Received: 25 August 2019
Revised: 15 November 2019
Accepted: 21 November 2019
Published: 09 December 2019
Issue date: January 2020

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Acknowledgements

This research was sponsored by the Natural Science Basic Research Plan in Shaanxi Province of China (No. 2018JM5093), the Fundamental Research Funds for the Central Universities (Nos. GK201702009 and GK201901002), and 111 Project (No. B14041).

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