Alkali transition metal phosphites as potential cathode materials grown from molten boric acid

Hui Lin Huang; Shu Hao Huang; Chun Wei Lai; Jia Rong Wu; Kwang Hwa Lii; Sue Lein Wang

doi:10.1002/jccs.201200600

Alkali transition metal phosphites as potential cathode materials grown from molten boric acid

Hui Lin Huang, Shu Hao Huang, Chun Wei Lai, Jia Rong Wu, Kwang Hwa Lii, Sue Lein Wang

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

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] (1) and Li[V(HPO₃)₂] (2) 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(HPO ₃)₅] (3), K₂[Co₃(HPO ₃)₄] (4), K₂[Mn₂(HPO ₃)₃] (5), and K[V(HPO₃)₂] (6) were prepared. The synthesis mediated by molten boric acid automatically provides reductive atmosphere and helps maintain low valence in metal centers.

Original language	English
Pages (from-to)	691-694
Number of pages	4
Journal	Journal of the Chinese Chemical Society
Volume	60
Issue number	7
DOIs	https://doi.org/10.1002/jccs.201200600
State	Published - Jul 2013

Keywords

Cathode material
Crystal structure
Metal phosphite

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title = "Alkali transition metal phosphites as potential cathode materials grown from molten boric acid",

abstract = "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] (1) and Li[V(HPO3)2] (2) 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(HPO 3)5] (3), K2[Co3(HPO 3)4] (4), K2[Mn2(HPO 3)3] (5), and K[V(HPO3)2] (6) were prepared. The synthesis mediated by molten boric acid automatically provides reductive atmosphere and helps maintain low valence in metal centers.",

keywords = "Cathode material, Crystal structure, Metal phosphite",

author = "Huang, {Hui Lin} and Huang, {Shu Hao} and Lai, {Chun Wei} and Wu, {Jia Rong} and Lii, {Kwang Hwa} and Wang, {Sue Lein}",

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doi = "10.1002/jccs.201200600",

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T1 - Alkali transition metal phosphites as potential cathode materials grown from molten boric acid

AU - Huang, Hui Lin

AU - Huang, Shu Hao

AU - Lai, Chun Wei

AU - Wu, Jia Rong

AU - Lii, Kwang Hwa

AU - Wang, Sue Lein

PY - 2013/7

Y1 - 2013/7

N2 - 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] (1) and Li[V(HPO3)2] (2) 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(HPO 3)5] (3), K2[Co3(HPO 3)4] (4), K2[Mn2(HPO 3)3] (5), and K[V(HPO3)2] (6) were prepared. The synthesis mediated by molten boric acid automatically provides reductive atmosphere and helps maintain low valence in metal centers.

AB - 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] (1) and Li[V(HPO3)2] (2) 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(HPO 3)5] (3), K2[Co3(HPO 3)4] (4), K2[Mn2(HPO 3)3] (5), and K[V(HPO3)2] (6) were prepared. The synthesis mediated by molten boric acid automatically provides reductive atmosphere and helps maintain low valence in metal centers.

KW - Cathode material

KW - Crystal structure

KW - Metal phosphite

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U2 - 10.1002/jccs.201200600

DO - 10.1002/jccs.201200600

M3 - 期刊論文

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SN - 0009-4536

VL - 60

SP - 691

EP - 694

JO - Journal of the Chinese Chemical Society

JF - Journal of the Chinese Chemical Society

IS - 7

ER -

Alkali transition metal phosphites as potential cathode materials grown from molten boric acid

Abstract

Keywords

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