Zeolitic imidazolate framework derived ZnCo2O4 hollow tubular nanofibers for long-life supercapacitors. 2020

Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
School of Materials Science & Chemical Engineering, Ningbo University Ningbo Zhejiang 315211 China hanlei@nbu.edu.cn.

Uniform one-dimensional metal oxide hollow tubular nanofibers (HTNs) have been controllably prepared using a calcination strategy using electrospun polymer nanofibers as soft templates and zeolitic imidazolate framework nanoparticles as precursors. Utilizing the general synthesis method, the ZnO HTNs, Co3O4 HTNs and ZnCo2O4 HTNs have been successfully prepared. The optimal ZnCo2O4 HTNs, as a representative substance applied in supercapacitors as the positive electrode, delivers a high specific capacity of 181 C g-1 at a current density of 0.5 A g-1, an excellent rate performance of 75.14% and a superior capacity retention of 97.42% after 10 000 cycles. Furthermore, an asymmetric supercapacitor assembled from ZnCo2O4 HTNs and active carbon also shows a stable and ultrahigh cycling stability with 95.38% of its original capacity after 20 000 cycle tests.

UI MeSH Term Description Entries

Related Publications

Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
August 2018, Nanoscale,
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
November 2020, RSC advances,
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
June 2022, Journal of colloid and interface science,
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
July 2013, Chemistry (Weinheim an der Bergstrasse, Germany),
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
February 2022, Mikrochimica acta,
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
October 2012, Angewandte Chemie (International ed. in English),
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
January 2018, Neural plasticity,
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
July 2020, Journal of colloid and interface science,
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
November 2021, ACS applied materials & interfaces,
Shihang Zhao, and Xianbo Yu, and Hongmei Chen, and Kai Tao, and Yaoping Hu, and Lei Han
February 2017, Journal of separation science,
Copied contents to your clipboard!