Alkali Transition Metal Phosphites as Potential Cathode Materials Grown from Molten Boric Acid. Issue 7 (21st March 2013)

• Record Type: Journal Article
• Authors: Huang, Hui‐Lin; Huang, Shu‐Hao; Lai, Chun‐Wei; Wu, Jia‐Rong; Lii, Kwang‐Hwa; Wang, Sue‐Lein
• Is Part Of: Journal of the Chinese Chemical Society. Volume 60:Issue 7(2013:Jul.)
• Page Start: 691
• Page End: 694
• Publication Date: 2013-03-21
• Subjects: Chemistry -- Periodicals; Electronic journals; 540.5
• DOI: 10.1002/jccs.201200600
• Languages: English
• ISSNs: 0009-4536

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>This is the first study on developing six alkali transition metal phosphites as potential candidates of cathode materials grown from molten boric acid, a simple, low energy costing method compared with conventional solid‐state reactions. Li₂[Mn(HPO₃)₂] (<bold>1</bold>) and Li[V(HPO₃)₂] (<bold>2</bold>) are featured with high theoretical capacitance values up to 117 and 123 mAh/g, respectively. With the replacement of Li⁺ by Na⁺ or K⁺, four new compounds with strongly related layer topology Na₂[Co₄(HPO₃)₅] (<bold>3</bold>), K₂[Co₃(HPO₃)₄] (<bold>4</bold>), K₂[Mn₂(HPO₃)₃] (<bold>5</bold>), and K[V(HPO₃)₂] (<bold>6</bold>) were prepared. The synthesis mediated by molten boric acid automatically provides reductive atmosphere and helps maintain low valence in metal centers.</p> </abstract>