التفاصيل البيبلوغرافية
| العنوان: |
Porous Mn2O3: A Low-Cost Electrocatalyst for Oxygen Reduction Reaction in Alkaline Media with Comparable Activity to Pt/C. |
| المؤلفون: |
Wenhai Wang1, Jing Geng1, Long Kuai1, Min Li1, Baoyou Geng1 bygeng@ahnu.edu.cn |
| المصدر: |
Chemistry - An Asian Journal. 2016, Vol. 6, p9909-9913. 5p. |
| مصطلحات موضوعية: |
*OXYGEN reduction, *ENERGY conversion, *ELECTROCATALYSTS, *POROUS materials, *AEROSOLS, *METHANOL |
| مستخلص: |
Preparing nonprecious metal catalysts with high activity in the oxygen reduction reaction (ORR) can promote the development of energy conversion devices. Support-free porous Mn2O3 was synthesized by a facile aerosol-spray-assisted approach (ASAA) and subsequent thermal treatment, and exhibited ORR activity that is comparable to commercial Pt/C The catalyst also exhibits notably higher activity than other Mn-based oxides, such as Mn3O4 and MnO2. The rotating ring disk electrode (RRDE) study indicates a typical 4-electron ORR pathway on Mn2O3. Furthermore, the porous Mn2O3 demonstrates considerable stability and a good methanol tolerance in alkaline media. In light of the low cost and high earth abundance of Mn, the highly active Mn2O3 is a promising candidate to be used as a cathode material in metal-air batteries and alkaline fuel cells. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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