N, P Co‐doped Hierarchical Porous Graphene as a Metal‐Free Bifunctional Air Cathode for Zn−Air Batteries,ChemElectroChem

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N, P Co‐doped Hierarchical Porous Graphene as a Metal‐Free Bifunctional Air Cathode for Zn−Air Batteries
ChemElectroChem ( IF 3.5 ) Pub Date : 2018-01-04 , DOI: 10.1002/celc.201701148
Lijun Zhou ₁ , Chunyan Zhang ₁ , Xiaoyi Cai ₂ , Yao Qian ₁ , Haifeng Jiang ₁ , Baosheng Li ₁ , Linfei Lai ₁ , Zexiang Shen ₂ , Wei Huang ₁

Affiliation

The development of high‐efficiency Zn−air batteries represents one of the emerging energy storage and conversion technologies. In this work, hierarchically structured N, P co‐doped graphene (NPHG) has been synthesized through the chemical polymerization of aniline and phytic acid in the presence of SiO₂ nanoparticles and applied as air cathodes for rechargeable Zn−air batteries, owing to its high bifunctional oxygen electrocatalytic activities. The P−N bond, rather than P−C or P=N bonds, in NPHG is proposed to be responsible for the high catalytic activity. The rechargeable Zn−air batteries assembled from this NPHG exhibited much higher reversibility and better stability as compared with a benchmark Pt/C catalyst.

中文翻译：

N，P共掺杂的多孔多孔石墨烯作为用于锌空气电池的无金属双功能空气阴极

高效锌空气电池的开发代表了新兴的能量存储和转换技术之一。在这项工作中，通过在SiO ₂纳米颗粒存在下通过苯胺和植酸的化学聚合合成了层次结构化的N，P共掺杂石墨烯（NPHG），并且由于其具有可充电性，因此可作为可充电Zn-空气电池的空气阴极高双功能氧电催化活性。NPHG中的P-N键而不是P-C键或P = N键被认为是高催化活性的原因。与基准Pt / C催化剂相比，由该NPHG组装而成的可再充电Zn-air电池表现出更高的可逆性和更好的稳定性。

更新日期：2018-01-04

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