Please use this identifier to cite or link to this item: doi:10.22028/D291-28918
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Title: Electrodeposition of hydrated vanadium pentoxide on nanoporous carbon cloth for hybrid energy storage
Author(s): Lee, Juhan
Badie, Sylvain
Srimuk, Pattarachai
Ridder, Alexander
Shim, Hwirim
Choudhury, Soumyadip
Nah, Yoon-Chae
Presser, Volker
Language: English
Title: Sustainable Energy & Fuels
Volume: 2
Issue: 3
Startpage: 577
Endpage: 588
Publisher/Platform: RSC
Year of Publication: 2018
Publikation type: Journal Article
Abstract: Electrodeposition is a simple and effective method for the synthesis of disordered hydrated vanadium pentoxide (V2O5·nH2O). For the synthesis of energy storage electrodes with high power performance, electrodeposition of hydrated V2O5 inside carbon micropores is particularly attractive to synergize electric-double layer formation and lithium ion intercalation. Here, we demonstrate that hydrated V2O5 can be effectively electrodeposited in carbon micropores of activated carbon cloth. Our study indicates that carbon pores larger than 1 nm are essential for the effective decoration with hydrated V2O5. A thermal treatment after the electrodeposition is often used to enhance the crystal structure of hydrated V2O5. However, thermal annealing of the hydrated vanadium pentoxide decorated activated carbon cloth under an oxygen-rich environment at high temperature (>330 °C) leads to a significant loss of pore volume, leading to a decreased electrochemical performance. At low annealing temperature (200 °C), the vanadium pentoxide electrodeposited activated carbon cloth electrode exhibits a maximum specific capacity of 137 mA h g−1 with stable cycle performance over 1600 cycles at a rate of 4C.
DOI of the first publication: 10.1039/C7SE00559H
Link to this record: hdl:20.500.11880/27821
ISSN: 2398-4902
Date of registration: 17-Sep-2019
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Volker Presser
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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