Initiating Hexagonal MoO3 for Superb-Stable and Fast NH4+ Storage Based on Hydrogen Bond Chemistry

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Article number1907802
Journal / PublicationAdvanced Materials
Volume32
Issue number14
Online published20 Feb 2020
Publication statusPublished - 9 Apr 2020

Abstract

Nonmetallic ammonium (NH4+) ions are applied as charge carriers for aqueous batteries, where hexagonal MoO3 is initially investigated as an anode candidate for NH4+ storage. From experimental and first-principle calculated results, the battery chemistry proceeds with reversible building-breaking behaviors of hydrogen bonds between NH4+ and tunneled MoO3 electrode frameworks, where the ammoniation/deammoniation mechanism is dominated by nondiffusion-controlled pseudocapacitive behavior. Outstanding electrochemical performance of MoO3 for NH4+ storage is delivered with 115 mAh g-1 at 1 C and can retain 32 mAh g-1 at 150 C. Furthermore, it remarkably exhibits ultralong and stable cyclic performance up to 100 000 cycle with 94% capacity retention and high power density of 4170 W kg-1 at 150 C. When coupled with CuFe prussian blue analogous (PBA) cathode, the full ammonium battery can deliver decent energy density 21.3 Wh kg-1 and the resultant flexible ammonium batteries at device level are also pioneeringly developed for potential realistic applications.

Research Area(s)

  • ammonium ion batteries, hexagonal MoO3, hydrogen bond chemistry, MOLYBDENUM TRIOXIDE, ENERGY-STORAGE, INTERCALATION, BATTERY

Citation Format(s)

Initiating Hexagonal MoO3 for Superb-Stable and Fast NH4+ Storage Based on Hydrogen Bond Chemistry. / Liang, Guojin; Wang, Yanlei; Huang, Zhaodong; Mo, Funian; Li, Xinliang; Yang, Qi; Wang, Donghong; Li, Hongfei; Chen, Shimou; Zhi, Chunyi.

In: Advanced Materials, Vol. 32, No. 14, 1907802, 09.04.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review