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Bulk Production of Non‐Precious Metal Catalysts with High Surface Area and Excellent Activity in the Oxygen Reduction Reaction
Author(s) -
Hou BeiHua,
Wang Qiang,
Lu WenChao,
Xiao Yao,
Zhang HaiXia,
Liao MinJi,
Zhu ZiChun,
Chen Ping
Publication year - 2018
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201701070
Subject(s) - catalysis , nanoporous , specific surface area , carbon fibers , materials science , oxygen , chemical engineering , metal , zinc , nanotechnology , activated carbon , doping , inorganic chemistry , chemistry , adsorption , metallurgy , organic chemistry , composite material , composite number , engineering , optoelectronics
Abstract Developing oxygen reduction reaction (ORR) electrocatalysts, which have non‐precious metal or metal‐free features, high performance, and stability to enhance the whole price/performance ratio, has become a great challenge in the practical application of fuel cells and zinc−air batteries. Here, we report the bulk preparation of the N, Fe co‐doped carbon with high surface area (NFe−C‐HSA). The typical catalyst has a three‐dimension network structure. The N, Fe co‐doped nanoporous carbon material has a very high surface area, with a Brunauer−Emmett−Teller surface area of 1776.68 m 2 g −1 , and a total pore volume of 1.58 cm 3 g −1 . NFe−C‐HSA exhibits superior ORR activity to state‐of‐the‐art Pt/C (20 %) catalyst and excellent stability in alkaline media as well as high ORR activity in acidic media. In the practical application of Zn−air batteries, NFe−C‐HAS also has superior performance to Pt/C (20 %). Owing to the high surface area and co‐doping of nitrogen and iron elements, the prepared nanoporous carbon material may have other applications in many fields such as supercapacitors, sewage treatment , sensors, gas uptake, and so on.