In situ imaging of electrocatalysis in a K–O2 battery with a hollandite α-MnO2 nanowire air cathode. Issue 73 (22nd August 2019)

• Record Type: Journal Article
• Authors: Tang, Yushu; Zhang, Liqiang; Tang, Yongfu; Wang, Xin; Zhang, Teng; Yang, Rui; Ma, Chi; Li, Na; Liu, Yuening; Zhao, Xinxin; Zhang, Xionghu; Wang, Zaifa; Guo, Baiyu; Li, Yongfeng; Huang, Jianyu
• Is Part Of: Chemical communications. Volume 55:Issue 73(2019)
• Page Start: 10880
• Page End: 10883
• Publication Date: 2019-08-22
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c9cc05226g
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : In situ observation of the growth of KO2 on the MnO2 nanowires during the ORR process of a K–O2 nanobattery. Abstract : Using α-manganese dioxide (α-MnO2 ) nanowires as the air electrode, a K–O2 nanobattery is assembled in an aberration corrected environmental transmission electron microscope. It is found that the α-MnO2 nanowires are reduced into Mn3 O4 and MnO during discharge; meanwhile, KO2 is formed on the surface of the α-MnO2 nanowires.