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High Performance Pseudocapacitor Based on 2D Layered Metal Chalcogenide Nanocrystals

Journal Article · · Nano Letters
DOI:https://doi.org/10.1021/nl504764m· OSTI ID:1370225
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. Here, 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 characteristics are consistent with intercalation pseudocapacitance, leading to materials that exhibit both high energy and power density.
Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Molecularly Engineered Energy Materials (MEEM)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-76SF00515; SC0001342
OSTI ID:
1370225
Journal Information:
Nano Letters, Journal Name: Nano Letters Journal Issue: 3 Vol. 15; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (6)