Fe-N-doped porous carbon from petroleum asphalt for highly efficient oxygen reduction reaction
Fe-N-doped porous carbon from petroleum asphalt for highly efficient oxygen reduction reaction
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来自石油沥青的 Fe-N 掺杂多孔碳用于高效氧还原反应
DOI：
10.1016/j.carbon.2017.10.004
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发表时间：
2018-01-01
期刊：
影响因子：
10.9
通讯作者：
Wu, Mingbo
中科院分区：
文献类型：
--
作者：
Liu, Jingyan;Liu, Yang;Wu, Mingbo
以尿素为氮源，α - fe2o3纳米颗粒为模板和铁源，采用模板法制备了石油沥青中掺铁氮多孔碳（NPCA）。在900℃下煅烧制备的NPCA （NPCA-900）表现出优异的电催化性能，具有高的限扩散电流密度和可与碱性环境下的商用Pt/C催化剂相媲美的稳定性。NPCA具有优异的ORR性能，主要归功于其丰富的孔隙度、较大的比表面积(1060 m（2) g(-1)）以及Fe-N（特别是吡啶N）的掺杂。廉价石油沥青衍生的NPCA在催化领域具有良好的应用前景，为实现重油清洁高价值利用开辟了一条新途径。(C) 2017 Elsevier Ltd.版权所有。
Fe-N-doped porous carbon derived from petroleum asphalt (NPCA) was prepared via a facile template synthesis method, with urea as nitrogen source while alpha-Fe2O3 nanoparticles as template and Fe source. The as-prepared NPCA calcined at 900 degrees C (NPCA-900) exhibits excellent electrocatalytic performance with high diffusion-limiting current density and stability comparable to those of commercial Pt/C catalysts in alkaline environment. The remarkable ORR performance of NPCA could be ascribed to the abundant porosity, large specific surface area (1060 m(2) g(-1)), as well as the doping of Fe-N (especially pyridinic N). The NPCA derived from cheap petroleum asphalt has good application future in the field of catalysis, while it may pave a new way to realize the clean and high value utilization of heavy oils. (C) 2017 Elsevier Ltd. All rights reserved.