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Two‐Dimensional Boron and Nitrogen Dual‐Doped Graphitic Carbon as an Efficient Metal‐Free Cathodic Electrocatalyst for Lithium‐Air Batteries
ChemElectroChem ( IF 3.5 ) Pub Date : 2021-01-07 , DOI: 10.1002/celc.202001373 Dawei Zhang 1 , Jing Zhang 2 , Xiaoman Luo 2 , Xufang Li 2 , Qingchun Yang 2 , Jianbo He 2 , Sen Xin 3 , Chaofeng Zhang 2 , Xinming Yang 2
ChemElectroChem ( IF 3.5 ) Pub Date : 2021-01-07 , DOI: 10.1002/celc.202001373 Dawei Zhang 1 , Jing Zhang 2 , Xiaoman Luo 2 , Xufang Li 2 , Qingchun Yang 2 , Jianbo He 2 , Sen Xin 3 , Chaofeng Zhang 2 , Xinming Yang 2
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The cathode catalyst for lithium‐air (Li‐air) batteries has a critical effect on battery performance. In this study, a two‐dimensional (2D) boron and nitrogen dual‐doped graphite carbon (BNC) catalyst prepared through a carbonization process was studied as a highly active electrocatalyst in Li‐air batteries. BNC offered high contents of boron and nitrogen as well as a graphene‐like structure. When employed as the catalyst for Li‐air batteries, it demonstrated good electrochemical performance, in terms of superior discharge capacity, low voltage gap, and long‐term stability. The as‐prepared special structure of BNC promoted the formation and diffusion of superoxide O2− and, meanwhile, reduced the oxygen release barrier by improving the charge transfer of oxygen ions.
中文翻译：
二维硼和氮双掺杂石墨碳作为锂空气电池的高效无金属阴极电催化剂
锂空气（Li-air）电池的阴极催化剂对电池性能具有至关重要的影响。在这项研究中，研究了通过碳化过程制备的二维（2D）硼和氮双掺杂石墨碳（BNC）催化剂，作为锂空气电池中的高活性电催化剂。BNC提供了高含量的硼和氮以及类似石墨烯的结构。当用作锂空气电池的催化剂时，它具有出色的电化学性能，具有优异的放电容量，低电压间隙和长期稳定性。预先准备好的BNC特殊结构促进了超氧化物O 2−的形成和扩散，同时通过改善氧离子的电荷转移降低了氧释放障碍。
更新日期：2021-03-07
中文翻译：
二维硼和氮双掺杂石墨碳作为锂空气电池的高效无金属阴极电催化剂
锂空气（Li-air）电池的阴极催化剂对电池性能具有至关重要的影响。在这项研究中，研究了通过碳化过程制备的二维（2D）硼和氮双掺杂石墨碳（BNC）催化剂，作为锂空气电池中的高活性电催化剂。BNC提供了高含量的硼和氮以及类似石墨烯的结构。当用作锂空气电池的催化剂时，它具有出色的电化学性能，具有优异的放电容量，低电压间隙和长期稳定性。预先准备好的BNC特殊结构促进了超氧化物O 2−的形成和扩散，同时通过改善氧离子的电荷转移降低了氧释放障碍。
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