학술논문
Amorphous titanic acid electrode: its electrochemical storage of ammonium in a new water-in-salt electrolyte.
Document Type
Article
Source
Subject
*AMORPHOUS substances
*TITANIUM dioxide
*AMMONIUM
*OXYGEN evolution reactions
*NERNST equation
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Language
ISSN
1359-7345
Abstract
We report an amorphous titanic acid of TiO1.85(OH)0.30·0.28H2O as a new electrode for aqueous ammonium-ion batteries, which operates in a new water-in-salt electrolyte―25 m NH4CH3COO. The titanic acid electrode exhibits a specific capacity nearly 8 times that from the crystalline TiO2 electrode. In electrochemical reactions, the amorphous titanic acid provides abundant storage sites in its disordered structure and affords strong H-bonding toward the inserted NH4+ ions. [ABSTRACT FROM AUTHOR]