Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5149034 | Journal of Power Sources | 2017 | 9 Pages |
Abstract
N-doped microporous carbon as an exceptional metal-free catalyst from waste biomass (banana peel as representative) was obtained via fast catalysis carbonization, followed by N-doping modification. The method achieves a relatively high C conversion efficiency of â¼41.9%. The final carbon materials are doped by N (â¼3Â at.%) and possess high surface area (â¼1097Â m2Â gâ1) and abundant micropores. Compared to commercial Pt/C materials, the as-prepared carbon catalyst exhibits a comparable electrocatalytic activity and much better stability. Furthermore, the metal-free catalyst loaded Zn-air battery possesses higher discharge voltage and power density as compared with that of commercial Pt/C. This novel technique can also be readily applied to produce metal-free carbon catalysts from other typical waste biomass (e.g., orange peel, leaves) as the carbon sources. The method can be developed as a potentially general and effective industrial route to transform waste biomass into high value-added microporous carbon with superior functionalities.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Li-Yuan Zhang, Meng-Ran Wang, Yan-Qing Lai, Xiao-Yan Li,