Architecture of copper sulfide heterojunction and sodalite zeolite for synergistically improving catalytic effectiveness toward methanol oxidation. (15th May 2023)

• Record Type: Journal Article
• Authors: Wei, Pengyan; Fang, Fang; E, Yifeng; Jiang, Yuying; Chen, Peng; Xing, Hongzhu; Qian, Kun
• Is Part Of: International journal of hydrogen energy. Volume 48:Number 42(2023)
• Page Start: 15894
• Page End: 15907
• Publication Date: 2023-05-15
• Subjects: Non-precious metal catalyst -- Sodalite code -- Low overpotential -- Methanol oxidation reaction; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2023.01.090
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Cux S derivatives perform high activity in MOR (methanol oxidation reaction) through the co-operation of Cu and S. In order to further improve their performance, the composition and structure are regulated through the co-growth process of copper sulfide heterojunction and SOD (sodalite code) zeolite framework. Under the hydrothermal condition, the introduced Cu 0 and Cu + ions are clustered on the zeolitic surface and inner cages. The S 2- anions are selectively located at the zeolite cage to balance the framework charge arisen from the incorporation of Cu + . In the electrochemical process, the optimized Cu2 S/SOD zeolite electrode reveals an extra high efficiency of 8847 A g −1 at an extra low overpotential of 0.374 V with an excellent resistance to catalyst poisoning in high concentration of methanol. This work opens up a new method for the design and industrial application of non-precious metal electrocatalysts with high energy density based on porous zeolite materials. Graphical abstract: In order to further improve their performance, the composition and structure are regulated through the co-growth process of copper sulfide heterojunction and SOD (sodalite code) zeolite framework. In the electrochemical process, the optimized Cu2 S/SOD zeolite electrode reveals an extra high efficiency of 8847 A g −1 at an extra low overpotential of 0.374 V with an excellent resistance to catalyst poisoning in high concentration methanol system. This work suggests potential applications in the field of non-noble metal catalyst for improving energy conversion, which provides a new idea for the construction of high-performance DMFC. Image 1 Highlights: A novel Cux S and SOD structured zeolite composite is as-synthesized in hydrothermal condition. In electrochemical process, the Cux S NPS in SOD nanocages performed high efficiency in MOR. The catalyst revealed an excellent resistance to catalyst poisoning in high concentration methanol system.