期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 922, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2022.116776
关键词
CuCo2S4; Thiospinel; Electrocatalyst; Hydrazine; Hydrazine electro-oxidation; DFT; Adsorption
资金
- DST-SERB [EMR/2016/000806]
- DST Women in Science (WoS-A) program [SR/WOS-A/PM-35/2017(G)]
- HRI Allahabad [SRG/2020/001707]
The hydrothermally synthesized nanocoral structures of copper-cobalt sulfide are investigated as a novel catalyst for the electrocatalytic splitting of hydrazine. The experimental results demonstrate that the copper-cobalt sulfide catalyst exhibits higher activity and efficiency in basic media, and a plausible reaction mechanism is proposed based on computational studies and experimental observations.
Hydrothermally synthesized nanocoral structures of copper-cobalt sulfide is identified as a novel catalyst for electrocatalytic splitting of hydrazine (N2H4) in both basic and neutral mediums. Electrochemical studies in basic medium indicated that electrocatalytic splitting of hydrazine occurs at a much lower potential 0.2 V (vs Ag/AgCl) in copper-cobalt sulfide in comparison to cobalt sulfide. Gaseous analysis reveals formation of oxygen at near thermodynamic voltage of 1.23 V. Experimental observations revealed the influence of hydrazine electro-oxidation on water splitting reaction. Adsorption energy of N2H4 on catalyst surface and projected density of states from computational studies using Density Function Theory (DFT) proved higher activity for copper-cobalt sulfide catalyst for the electrocatalytic splitting of Hydrazine. Plausible mechanism is depicted based upon the experimental observations.
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