Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7714534 | International Journal of Hydrogen Energy | 2015 | 9 Pages |
Abstract
The α-MnO2 nanorod catalysts are prepared by chemical precipitation method, the morphology and crystal configuration are evaluated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). In the electrolyte salt such as tetrabutylammonium perchlorate/dimethyl sulfoxide (TBAClO4/DMSO) and Lithium bis (trifluoromethanesulfonyl) imide/dimethyl sulfoxide (LiTFSI/DMSO), the reaction mechanism and the products of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) process on glassy carbon electrode, Au electrode and α-MnO2 electrode are analyzed by cyclic voltammetry. In addition electrochemical quartz crystal microbalance (EQCM) are used to measure the mass change on electrode in cyclic voltammetry scan. In LiTFSI/DMSO system, the results show that the ORR reaction mechanism, species and distribution of products on different electrodes are not exactly identical, α-MnO2 nanorod catalysts have good catalytic activity and greatly enhance the reaction kinetics of ORR and OER process.
Related Topics
Physical Sciences and Engineering
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Authors
Donghong Duan, Xiu You, Wenjun Ren, Huikai Wei, Huihong Liu, Shibin Liu,