High Performance Pseudocapacitor Based on 2D Layered Metal Chalcogenide Nanocrystals

被引：546

作者：

Muller, Guillaume A. ^{[1
]}

Cook, John B. ^{[2
]}

Kim, Hyung-Seok ^{[1
]}

Tolbert, Sarah H. ^{[1
,2
]}

Dunn, Bruce ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

来源：

NANO LETTERS | 2015年 / 15卷 / 03期

关键词：

TiS2; chalcogenides; in-situ synchitrori diffraction; pseudocapacitors; intercalation kinetics; electrochemical energy storage; ELECTROCHEMICAL ENERGY-STORAGE; INTERCALATION COMPOUNDS; VALLEY POLARIZATION; LARGE-AREA; MOS2; NANOSHEETS; GRAPHENE; TRANSITION; DICHALCOGENIDES; DIFFRACTION;

D O I：

10.1021/nl504764m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single-layer and few-layer transition metal dichalcogenides have been extensively studied for their electronic properties, but their energy-storage potential has not been well explored. ThiS:paper describes the structural and electrochemical properties of few-layer TiS2, nanocrystals. The two-dimensional morphology leads to very different behavior, compared to corresponding bulk materials. Only small structural changes occur during lithiation/delithiation and charge: storage characteristic's are consistent with intercalation pseudocapacitance, leading to materials that exhibit both high energYand power density.

引用

页码：1911 / 1917

页数：7

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