Recently, a work entitled “Morphology controlled preparation of ZnCo2O4 nanostructures for asymmetric supercapacitor with ultrahigh energy density” was published in the world’s leading journal on the area of energy storage by the assistant professor Yan Zhao in our institute. (Energy, 2017, 123, 296-304, IF=4.52). Besides, Jiangsu University is the first completion unit of this article, and the master student Le Xu is the first author. 
　　This work was supported by the National Natural Science Foundation of China for Youths, Natural Science Foundation of Jiangsu Province for Youths, and the China Postdoctoral Science Foundation.