Fe-N-carbon black for the oxygen reduction reaction in sulfuric acid
Fe-N-carbon black for the oxygen reduction reaction in sulfuric acid
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Fe-N-炭黑用于硫酸中的氧还原反应
DOI：
10.1016/j.carbon.2013.02.017
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发表时间：
2013-06
期刊：
影响因子：
10.9
通讯作者：
Yi, Baolian1
中科院分区：
文献类型：
--
作者：
Xiao, Hui1, 2;Shao, Zhi-Gang1;Zhang, Geng1, 2;Gao, Yuan1, 2;Lu, Wangting1, 2;Yi, Baolian1
以炭黑为载体，负载铁咪唑配合物，制备了Fe-N-C催化剂。在0.5M硫酸溶液中，采用电化学旋转圆盘电极法考察了不同热解温度对催化剂氧还原反应（ORR）活性的影响。发现在700°C下热处理的Fe-N-C催化剂显示出最好的ORR活性，其最高半波电位为0.656V vs. normal hydrogen electrode（NHE），仅比商业Pt-C（负载量：10μgPtcm−2）低64 mV，并且H2 O2产率最低（0.6%，0.4V vs. NHE）。电化学循环测试表明，该催化剂具有比Pt-C催化剂更好的电化学稳定性。还对这些催化剂进行了X射线光电子能谱表征，以确定ORR的活性氮物种。
A Fe–N–C catalyst was prepared by pyrolyzing carbon black supported Fe–imidazole complexes. The effect of different pyrolysis temperatures on the catalysts’ oxygen reduction reaction (ORR) activity was investigated by electrochemical rotating disk electrode tests in 0.5M H2SO4. The Fe–N–C catalyst heat-treated at 700°C was found to display the best ORR activity with a highest half-wave potential of 0.656V vs. normal hydrogen electrode (NHE), which was only 64mV lower than that of the commercial Pt–C (loading: 10μgPtcm−2), and a lowest H2O2yield (0.6% at 0.4V vs. NHE). Furthermore, potential cycling tests showed that the catalyst had a better electrochemical stability than Pt–C catalyst. X-ray photoelectron spectroscopy characterization of these catalysts was also conducted to identify the active nitrogen species for ORR.
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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
影响因子：
3.6
作者：
Shao-Horn, Y.;Sheng, W. C.;Morgan, D.
通讯作者：
Morgan, D.
影响因子：
3.7
作者：
Koslowski, Ulrike I.;Abs-Wurmbach, Irmgard;Bogdanoff, Peter
通讯作者：
Bogdanoff, Peter
影响因子：
32.5
作者：
Jaouen, Frederic;Proietti, Eric;Zelenay, Piotr
通讯作者：
Zelenay, Piotr
影响因子：
8.4
作者：
H. Zhong;Huamin Zhang;Zhuang Xu;Yongfu Tang;Jingxia Mao
通讯作者：
H. Zhong;Huamin Zhang;Zhuang Xu;Yongfu Tang;Jingxia Mao