Facile synthesis of nickel cobalt selenide hollow nanospheres as efficient bifunctional electrocatalyst for rechargeable Zn-air battery

  • Xuerong Zheng (郑学荣)
  • Jinfeng Zhang (张金凤)
  • Jihui Wang (王吉会)
  • Zhijia Zhang (张志佳)
  • Wenbin Hu (胡文彬)
  • Yajing Han (韩雅静)Email author


Designing high active, low cost and bifunctional electrocatalysts is urgent for developing clean energy storage and conversion systems. Transition metal selenides exhibit optimal electronic conductivity and tunable physicochemical properties, which endow them with potential for efficient electrocatalysts to facilitate the oxygen reduction and oxygen evolution reactions (ORR and OER). Herein, hollow NixCo0.85-xSe nanospheres were synthesized using a facile polyol based solution chemical method. The NixCo0.85-xSe exhibits an onset overpotential of 0.89 V for ORR, and an overpotential of 305 mV to achieve 10 mA cm−2 for OER. Moreover, the NixCo0.85-xSe based Zn-air battery displays remarkable specific capacity and durability. Such superior catalytic performances can be attributed to the synergistic effect, large specific surface area and enhanced electron transfer rate. This approach provides a new way to design highly efficient bifunctional electrocatalysts for electrochemical energy storage and utilization.


transition metal selenides bifunctional electro-catalyst oxygen reduction reaction oxygen evolution reaction rechargeable Zn-air battery 

NixCo0.85-xSe 中空纳米球的溶液化学法合成、双 功能特性及锌空电池应用


合成高活性、低成本、双功能特性的电催化剂是目前发展 新能源材料的重要任务. 过渡金属硒化物具有较高的电导特性、 可调节的物理化学特性等, 成为了开发高效氧还原和氧析出催化 剂的研究热点. 本文采用多元醇溶液化学法合成了具有较大比表 面积的NixCo0.85-xSe中空纳米球. 该催化剂的ORR起始电位达到 0.89 V, OER在10 mA cm−2电流密度下的过电位达到305 mV. 以 NixCo0.85−xSe中空纳米球为空气电极、锌片为阴极组成的锌空电池 具有良好的比容量和循环稳定性. NixCo0.85−xSe中空纳米球优异的 催化性能主要归因于较大的比表面积、Ni和Co的协同催化特性以 及良好的导电性. 本文为设计高效的锌空电池催化剂提供了良好 的理论基础和实验支持.



This work was supported by the National Natural Science Foundation of China (51804216). Zheng X acknowledges a scholarship from the China Scholarship Council (CSC) (201806255078).


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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Xuerong Zheng (郑学荣)
    • 1
    • 2
  • Jinfeng Zhang (张金凤)
    • 1
  • Jihui Wang (王吉会)
    • 1
  • Zhijia Zhang (张志佳)
    • 3
  • Wenbin Hu (胡文彬)
    • 1
  • Yajing Han (韩雅静)
    • 1
    Email author
  1. 1.School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology of the Ministry of EducationTianjin UniversityTianjinChina
  2. 2.Department of ChemistryVirginia Tech, BlacksburgVirginiaUSA
  3. 3.School of Materials Science and EngineeringTianjin Polytechnic UniversityTianjinChina

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