假电容
原位
材料科学
纳米技术
化学
电容
超级电容器
有机化学
电极
物理化学
作者
Lijin Yan,Jiangyu Hao,Baibai Liu,Xuefeng Zou,Qibin Wu,Jin Hou,Jizhou Duan,Shicheng Wei,Yang Zhou,Bin Xiang,Baorong Hou
标识
DOI:10.1016/j.jechem.2022.07.012
摘要
In-situ electro-regulating strategy not only presents the formation steps of numerous holes but is also accompanied by a number of O vacancies generation process due to the activation of an external electric field. Developing a precise controllable strategy for modulating the micro-morphology, atom coordination environment, and electronic structure of electrode materials is crucial for the performance in the field of energy storage, yet still a tremendous challenge. Herein, a facile and universal in-situ electrochemical self-optimization design, electro-regulating, is designed to controllably produce electrode materials with abundant defects. Through detailed characterization studies, the microstructure of MnO 2 is reconstructed after electro-regulating, which exhibits a structure of small fragments with numerous holes due to the partial self-dissolution of acidic oxides under an alkaline operating environment. Furthermore, the electro-regulating strategy not only presents the formation steps of numerous holes but is also accompanies by a number of O vacancies generation process due to the activation of an external electric field. This study provides a new inspiration for reasonably designing advanced functional electrode materials for various electrochemical applications and beyond.
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