Controllable Modulation of Defects for Layered Double Hydroxide Nanosheets by Altering Intercalation Anions for Efficient Electrooxidation Catalysis
- 11 October 2021
- journal article
- research article
- Published by Wiley in Chemistry – An Asian Journal
- Vol. 16 (23), 3993-3998
- https://doi.org/10.1002/asia.202101084
Abstract
Hydrazine (N 2 H 4 ) is always considered as one of the most potential energy storage materials in liquid fuel cells, as it contains high energy and power density, the high efficiency oxidation of N 2 H 4 in fuel cells has drawn great attention. However, the most used catalysts are expensive noble metal catalysts, thus the development of highly efficient non-noble metal catalysts is crucial to reduce the cost of hydrazine oxidation in practical industry. Herein, we synthesized a series of CoFe-layered double hydroxides (CoFe-LDHs) intercalated with different anions via a simple one-step co-precipitation method for the electrooxidation of hydrazine. Through altering the intercalated anions of CoFe-LDHs, the defects and the electronic structure can be well controlled, and the catalytic performance for the electrooxidation of hydrazine were well promoted by using NO 3 - intercalated into CoFe-LDH compared with other anions (like Cl - , BO 3 3- , CO 3 2- ). This work developed a series of hydrazine electrooxidation catalysts and established the relationship between the intercalated anions, the fine structure of the catalyst and the electrocatalytic performance.Keywords
Funding Information
- National Natural Science Foundation of China (U1707603, 21878008, U1507102, 21922801)
- Natural Science Foundation of Beijing Municipality (2182047, 2202036)
- Fundamental Research Funds for the Central Universities (XK1802-6, XK1902, 12060093063, 2312018RC07)
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