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https://hdl.handle.net/2440/75360
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Type: | Journal article |
Title: | Nanoporous graphitic-C₃N₄@carbon metal-free electrocatalysts for highly efficient oxygen reduction |
Other Titles: | Nanoporous graphitic-C(3)N(4)@carbon metal-free electrocatalysts for highly efficient oxygen reduction |
Author: | Zheng, Y. Jiao, Y. Chen, J. Liu, J. Liang, J. Du, A. Zhang, W. Zhu, Z. Smith, S. Jaroniec, M. Lu, G. Qiao, S. |
Citation: | Journal of the American Chemical Society, 2011; 133(50):20116-20119 |
Publisher: | Amer Chemical Soc |
Issue Date: | 2011 |
ISSN: | 0002-7863 1520-5126 |
Statement of Responsibility: | Yao Zheng, Yan Jiao, Jun Chen, Jian Liu, Ji Liang, Aijun Du, Weimin Zhang, Zhonghua Zhu, Sean C. Smith, Mietek Jaroniec, Gao Qing (Max) Lu, and Shi Zhang Qiao |
Abstract: | Based on theoretical prediction, a g-C(3)N(4)@carbon metal-free oxygen reduction reaction (ORR) electrocatalyst was designed and synthesized by uniform incorporation of g-C(3)N(4) into a mesoporous carbon to enhance the electron transfer efficiency of g-C(3)N(4). The resulting g-C(3)N(4)@carbon composite exhibited competitive catalytic activity (11.3 mA cm(-2) kinetic-limiting current density at -0.6 V) and superior methanol tolerance compared to a commercial Pt/C catalyst. Furthermore, it demonstrated significantly higher catalytic efficiency (nearly 100% of four-electron ORR process selectivity) than a Pt/C catalyst. The proposed synthesis route is facile and low-cost, providing a feasible method for the development of highly efficient electrocatalysts. |
Rights: | © 2011 American Chemical Society |
DOI: | 10.1021/ja209206c |
Published version: | http://dx.doi.org/10.1021/ja209206c |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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