Cover Picture: Oxygen Vacancies on Layered Niobic Acid That Weaken the Catalytic Conversion of Polysulfides in Lithium–Sulfur Batteries (Angew. Chem. Int. Ed. 33/2019). Issue 33 (10th July 2019)

• Record Type: Journal Article
• Authors: Xu, Lingling; Zhao, Hongyang; Sun, Mingzi; Huang, Bolong; Wang, Jianwei; Xia, Jiale; Li, Na; Yin, Dandan; Luo, Meng; Luo, Feng; Du, Yaping; Yan, Chunhua
• Is Part Of: Angewandte Chemie international edition. Volume 58:Issue 33(2019)
• Page Start: 11127
• Page End: 11127
• Publication Date: 2019-07-10
• Subjects: catalytic conversion -- electrochemistry -- Li-S batteries -- niobic acid -- oxygen vacancies; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201908295
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract : The solid Lewis acid HNb3 O8 (HNO) and oxygen‐vacancy‐rich HNO‐v have been investigated for Li‐S batteries. As Y. Du, B. Huang et al. show in their Research Article on page 11491 ff., the inferior performance induced by the oxygen vacancy is mainly attributed to the decreased electric conductivity and the weakened adsorption of polysulfide on the catalyst surface.