Fe-Doped Copolymer-Templated Nitrogen-Rich Carbon as a PGM-Free Fuel Cell Catalyst
Fe-Doped Copolymer-Templated Nitrogen-Rich Carbon as a PGM-Free Fuel Cell Catalyst
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铁掺杂共聚物模板化富氮碳作为不含铂族金属的燃料电池催化剂
DOI:
10.1021/acsaem.1c01769
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发表时间:
2021
影响因子:
6.4
通讯作者:
Litster, Shawn
中科院分区:
文献类型:
--
作者:
Torres, Rudy M.;Sun, Mingkang;Yuan, Rui;Abdelrahman, Mohamed;Guo, Zhitao;Kowalewski, Tomasz;Matyjaszewski, Krzysztof;LeDuc, Philip R.;Litster, Shawn
Platinum group metal-free (PGM-free) catalysts present a promising opportunity to make hydrogen fuel cells more affordable; however, issues with stability and electrochemical activity continue to hinder their application. Recent studies point to the availability of nitrogen and a controlled mesoporous structure as avenues of improvement. To address this need, copolymer-templated nitrogen-enriched carbon (CTNC) was used as the precursor to prepare PGM-free catalysts for the oxygen reduction reaction (ORR). By employing its rich nitrogen content and interconnected mesoporous structure, a significant amount of Fe–N–C-active sites were formed by co-annealing CTNC with FeSO4. The formed N/Fe co-doped nanocarbon (CTNC-Fe) catalyst exhibits good electrochemical activity with a half-wave potential of 0.781 V vs normal hydrogen electrode (NHE), a total surface area of 400 m2/g, and a power density of 180 mW/cm2. The block copolymer (BCP) was made by atom transfer radical polymerization (ATRP), which allows control and tunability of the block copolymer. This work opens new opportunities to improve the electrochemical activity and stability of PGM-free catalysts by controlled polymerization techniques that precisely tune the pore structure and maximize nitrogen content to improve the formation of active sites in the catalysts.
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DOI:
10.1039/c2cp41957b
发表时间:
2012-09-07
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
Kramm UI;Herranz J;Larouche N;Arruda TM;Lefèvre M;Jaouen F;Bogdanoff P;Fiechter S;Abs-Wurmbach I;Mukerjee S;Dodelet JP
通讯作者:
Dodelet JP
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
J. Collman;T. Eberspacher;L. Fu;P. Herrmann
通讯作者:
P. Herrmann
影响因子:
3.9
作者:
Babu, S. Komini;Chung, H. T.;Litster, S.
通讯作者:
Litster, S.
影响因子:
22
作者:
Chen, Mengjie;He, Yanghua;Wu, Gang
通讯作者:
Wu, Gang
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
J. Collman;P. Herrmann;B. Boitrel;Xumu Zhang;T. Eberspacher;L. Fu;Jianling Wang;D. Rousseau;E. Williams
通讯作者:
E. Williams