DataVXACS Applied Nano MaterialsPaper
journal article·2020-06-26

Fe,N Co-Doped Mesoporous Carbon Nanosheets for Oxygen Reduction

Peng Du, Xufen Xiao, Feixiang Ma, Hao Wang, Junda Shen, Fucong Lyu, Yingxian Chen, Jian Lu, Yangyang Li

ACS Applied Nano Materials· Volume 3· Issue 6
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Source abstract

Abstract

Carbon nanomaterials codoped with transition metal and nitrogen have appeared as one of the most potential candidates to replace noble metal-based oxygen reduction catalyst. However, it remains a challenge to achieve precise and convenient control over the structural parameters on carbon materials for optimal oxygen reduction reaction (ORR) efficiency. Herein, a straightforward and feasible pore-forming method for fabricating mesoporous carbon nanosheets codoped with transition metal and nitrogen was rationally designed by tactfully introducing zinc nitrate into the carbonization process. When applied for catalyzing ORR, iron and nitrogen codoped mesoporous carbon nanosheets synthesized with the aid of zinc nitrate displayed a half-wave potential of 0.92 V, which was significantly better than the catalyst synthesized without zinc nitrate and commercial Pt/C catalyst. A typical catalyst was methanol tolerable and showed only 8% current decay under alkaline condition after 50 000 s. The vital roles of zinc nitrate in developing high-performance ORR catalysts were also unraveled.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong, P.R. China

Department of Material Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, P.R. China

Hong Kong Branch of National Precious Metals Material Engineering Research Centre (NPMM), City University of Hong Kong, Kowloon, Hong Kong, P.R. China

Department of Mechanical Engineering, City University of Hong Kong, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Tat Chee Avenue, Kowloon, Hong Kong, P.R. China

Center for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, 8 Yuexing first Road, Shenzhen Hi-Tech Industrial Park, Nanshan District, Shenzhen 518000, P.R. China

Funding

Innovation and Technology Commission · City University of Hong Kong

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