Phosphorus-doped cobalt oxide constructs high and low valence Cobalt: Efficient synergistic catalytic electrooxidation of sodium borohydride
Low-cost, high-performance electrode materials for mitigating hydrogen release are urgently needed for anodes of direct borohydride fuel cells (DBFC). Herein, CoP-CoO with both high (Co) and low (Co) valence cobalt is successfully constructed by regulating the Co valence state by P and O and achieves efficient catalysis of NaBH electrooxidation. Co has an extremely strong ability to break B-H bonds, and Co is near the grain boundaries to provide strong adsorption of electronegative reactants and uneven stress on B-H bonds. Benefiting from the synergistic effect of high and low valence cobalt, and the unique inner hole structure of material induced by the phosphorylation process, the direct sodium borohydride-hydrogen peroxide fuel cells (DBHPFC) assembled with CoP-CoO as anodes can reach a maximum power density of 280 mW cm at room temperature. Meanwhile, high phosphorus doping is effective in improving fuel utilization. This work provides a cost-effective, highly-active anode engineering strategy for DBFC and attracts attention to the valence state of cobalt-based materials in the field of catalytic NaBH electrooxidation.
Booz Allen Foundation[201701D221047];Booz Allen Foundation;
|WOS Research Area|
Engineering, Environmental ; Engineering, Chemical
|WOS Accession No|
|ESI Research Field|
Cited Times [WOS]:1
|Document Type||Journal Article|
|Department||Department of Mechanical and Energy Engineering|
1.Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering,North University of China,Taiyuan,030051,China
2.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
|Corresponding Author Affilication||Department of Mechanical and Energy Engineering|
Sun，Tong,Li，Yiju,Liu，Youzhi,et al. Phosphorus-doped cobalt oxide constructs high and low valence Cobalt: Efficient synergistic catalytic electrooxidation of sodium borohydride[J]. Chemical Engineering Journal,2023,472.
Sun，Tong,Li，Yiju,Liu，Youzhi,Jiao，Weizhou,&Zhang，Dongming.(2023).Phosphorus-doped cobalt oxide constructs high and low valence Cobalt: Efficient synergistic catalytic electrooxidation of sodium borohydride.Chemical Engineering Journal,472.
Sun，Tong,et al."Phosphorus-doped cobalt oxide constructs high and low valence Cobalt: Efficient synergistic catalytic electrooxidation of sodium borohydride".Chemical Engineering Journal 472(2023).
|Files in This Item:||There are no files associated with this item.|
|Recommend this item|
|Export to Endnote|
|Export to Excel|
|Export to Csv|
|Similar articles in Google Scholar|
|Similar articles in Baidu Scholar|
|Similar articles in Bing Scholar|
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.