Excellent Sulfur Dioxide Electrooxidation Performance and Good Stability on a Fe-N-Doped Carbon-Cladding Catalyst in H2SO4
Excellent Sulfur Dioxide Electrooxidation Performance and Good Stability on a Fe-N-Doped Carbon-Cladding Catalyst in H2SO4
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Fe-N 掺杂碳包覆催化剂在 H2SO4 中具有优异的二氧化硫电氧化性能和良好的稳定性
DOI：
10.1149/2.0741707jes
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发表时间：
2017
影响因子：
3.9
通讯作者：
Z. Shao
中科院分区：
文献类型：
--
作者：
Q. Zhao;M. Hou;S. Jiang;J. Ai;L. Zheng;Z. Shao
This work developed a non-precious carbon-cladding catalyst with excellent SO2 electrooxidation performance, which was synthesized through pyrolyzing a BP2000 supported composite precursor of melamine and Pluronic F127 dispersed FeCl3. This Fe-N-doped catalyst displays the onset and half-wave SO2 oxidation potential of 0.516 V and 0.629 V, respectively, which are particularly close to those of the Pt/C (JM, 20%). This carbon-cladding catalyst exhibits the higher SO2 catalytic activity than Pt/ C, when the applied oxidation potential is above 1.194 V. Furthermore, stability of this catalyst is also better than Pt/ C after the accelerated durability tests in H2SO4. Based on physical characterizations, the effectively doped Fe-N, well embedded Fe3C substances as well as the high surface area, large pore volume and mesoporous structures in the catalyst are synergetic responsible for its excellent SO2 electrooxidation performance and better stability. (C) 2017 The Electrochemical Society. All rights reserved.
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