Understanding the Synergistic Effects and Structural Evolution of Co(OH)2 and Co3O4 toward Boosting Electrochemical Charge Storage

• Published in: Advanced functional materials Vol. 32; no. 6
• Main Authors: Gao, Peng, Zeng, Ying, Tang, Pei, Wang, Zixing, Yang, Jiaofeng, Hu, Aiping, Liu, Jilei
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.02.2022
• Subjects: charge storage mechanisms; Charge transfer; Co 3O 4/Co(OH) 2 heterostructure; Cobalt oxides; Cycles; Evolution; Heterostructures; improved rate/cycle performance; in situ Raman spectroscopy; interfacial layer control; Materials science; Metal foams; Structural integrity; Synergistic effect

In this study, a novel Co3O4/Co(OH)2 heterostructure is obtained via electrodeposition on nickel (Ni) foam, forming sandwich‐like structure and freestanding electrode. The outer Co(OH)2 with layered structure can provide sufficient absorption sites and enable facile ion intercalation, meanwhile the...