AUTHOR=Ren Qilong , Wu Guangyu , Xing Weinan , Han Jiangang , Li Pingping , Li Bo , Cheng Junye , Wu Shuilin , Zou Rujia , Hu Junqing 

TITLE=Highly Ordered Mesoporous NiCo2O4 as a High Performance Anode Material for Li-Ion Batteries

JOURNAL=Frontiers in Chemistry

VOLUME=7

YEAR=2019

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2019.00521

DOI=10.3389/fchem.2019.00521

ISSN=2296-2646

ABSTRACT=<p>The controlled synthesis of highly ordered mesoporous structure has attracted considerable attention in the field of electrochemistry because of its high specific surface area which can contribute the transportation of ions. Herein, a general nano-casting approach is proposed for synthesizing highly ordered mesoporous NiCo<sub>2</sub>O<sub>4</sub> microspheres. The as-synthesized mesoporous NiCo<sub>2</sub>O<sub>4</sub> microsphere materials with high Brunner-Emmett-Teller (BET) surface area (~97.77 m<sup>2</sup>g<sup>−1</sup>) and uniform pore size distribution around 4 nm exhibited a high initial discharge capacity of ~1,467 mAhg<sup>−1</sup>, a good rate capability as well as cycling stability. The superior electrochemical performance was mainly because of the highly porous nature of NiCo<sub>2</sub>O<sub>4</sub>, which rendered volume expansion during the process of cycling and shortened lithium-ions transport pathways. These properties showcase the inherent potential for use of highly ordered mesoporous NiCo<sub>2</sub>O<sub>4</sub> microspheres as a potential anode material for lithium-ion batteries in the future.</p>