Increasing surface active Co2+ sites of MOF-derived Co3O4 for enhanced supercapacitive performance via NaBH4 reduction. (1st November 2018)

• Record Type: Journal Article
• Authors: Liu, Shujie; Deng, Ting; Hu, Xiaoying; Shi, Xiaoyuan; Wang, Haoxiang; Qin, Tingting; Zhang, Xinxin; Qi, Jingang; Zhang, Wei; Zheng, Weitao
• Is Part Of: Electrochimica acta. Volume 289(2018)
• Page Start: 319
• Page End: 323
• Publication Date: 2018-11-01
• Subjects: Co3O4 -- Supercapacitor -- NaBH4 reduction -- Surface chemistry -- Electrochemistry; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2018.09.052
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: Dodecahedral NaBH4 -reduced Co3 O4 (R-Co3 O4 ) was successfully prepared via a conformal transformation method. Such facile procedure leads to abundance of electrochemically active sites of Co 2+ ions. The as-prepared R-Co3 O4 affords the material an improved specific capacitance of 329 F/g, which is triply that of the pristine Co3 O4 . In addition, an enhanced cycling stability is also achieved for the R-Co3 O4 . Thus, we develop a novel but simple route for large-scale industrial production of electrochemically active materials via NaBH4 reduction.