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Proceedings Paper

High-performance porous carbon/CeO2 nanoparticles hybrid super-capacitors for energy storage
Author(s): Mohammad Arif Ishtiaque Shuvo; Hasanul Karim; Md. Tariqul Islam; Gerardo Rodriguez; Manjula I. Nandasiri; Ashleigh M. Schwarz; Arun Devaraj; Juan C. Noveron; Murugesan Vijayakumar; Yirong Lin
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Paper Abstract

Increasing demand for energy storage devices has propelled researchers for developing efficient super-capacitors (SC) with long cycle life and ultrahigh energy density. Carbon-based materials are commonly used as electrode materials for SC. Herein we report a new approach to improve the SC performance utilizing porous carbon /Cerium oxide nanoparticle (PC-CON) hybrid as electrode material synthesized via low temperature hydrothermal method and tetraethyl ammonium tetrafluroborate in acetonitrile as organic electrolyte. Through this approach, charges can be stored not only via electrochemical double layer capacitance (EDLC) from PC but also through pseudo-capacitive effect from CeO2 NPs. The excellent electrode-electrolyte interaction due to the electrochemical properties of the ionic electrolyte provides a better voltage window for the SC. Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and X-Ray Diffraction (XRD) measurements were used for the initial characterization of this PC/CeO2 NPs hybrid material system. Electrochemical measurements of SCs was performed using a potentio-galvanostat. It is found that the specific capacitance was improved by 30% using PC-CON system compared with pristine PC system.

Paper Details

Date Published: 27 March 2015
PDF: 8 pages
Proc. SPIE 9439, Smart Materials and Nondestructive Evaluation for Energy Systems 2015, 94390H (27 March 2015); doi: 10.1117/12.2084267
Show Author Affiliations
Mohammad Arif Ishtiaque Shuvo, Univ of Texas at El Paso (United States)
Hasanul Karim, Univ. of Texas at El Paso (United States)
Md. Tariqul Islam, Univ. of Texas at El Paso (United States)
Gerardo Rodriguez, Univ. of Texas at El Paso (United States)
Manjula I. Nandasiri, Pacific Northwest National Lab. (United States)
Ashleigh M. Schwarz, Pacific Northwest National Lab. (United States)
Arun Devaraj, Pacific Northwest National Lab. (United States)
Juan C. Noveron, Univ. of Texas at El Paso (United States)
Murugesan Vijayakumar, Pacific Northwest National Lab. (United States)
Yirong Lin, Univ. of Texas at El Paso (United States)


Published in SPIE Proceedings Vol. 9439:
Smart Materials and Nondestructive Evaluation for Energy Systems 2015
Norbert G. Meyendorf, Editor(s)

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