Inside-out regulation of MnO toward fast reaction kinetics in aqueous zinc ion batteries

Zixiang Cui; Jing Zhang; Shenfei Zhao; Ke Wu; Chunjie Li; Ruguang Ma; Chang Ming Li

doi:10.1039/d3cc03908k

Inside-out regulation of MnO toward fast reaction kinetics in aqueous zinc ion batteries

Chem Commun (Camb). 2023 Oct 19;59(84):12601-12604. doi: 10.1039/d3cc03908k.

Authors

Zixiang Cui^{1

2}, Jing Zhang^{1

2}, Shenfei Zhao³, Ke Wu^{1

2}, Chunjie Li², Ruguang Ma², Chang Ming Li²

Affiliations

¹ School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China.
² School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China. ruguangma@usts.edu.cn.
³ Institute for Clean Energy & Advanced Materials, School of Materials & Energy, Southwest University, Chongqing, 400715, P. R. China.

PMID: 37791467
DOI: 10.1039/d3cc03908k

Abstract

An "inside-out regulation" strategy is proposed to improve the Zn²⁺ storage of MnO by Ni doping into the lattice and graphene wrapping outside the nanoparticles. The as-prepared Ni-MnO@rGO exhibits 112 mA h g^-1 at 2.0 A g^-1 over 800 cycles, due to the improved transport of electrons and ions from the synergistical function of intrinsic doping and external graphene encapsulation.