Please use this identifier to cite or link to this item: https://doi.org/10.1166/sam.2014.1684
Title: Cerium doped NiO nanoparticles: A novel electrode material for high performance pseudocapacitor applications
Authors: Anjali, P.
Vani, R.
Sonia, T.S.
Sreekumaran Nair, A. 
Ramakrishna, S.
Ranjusha, R.
Subramanian, K.R.V.
Sivakumar, N.
Gopi Mohan, C.
Nair, S.V.
Balakrishnan, A.
Keywords: Batteries
Electrode
Nickel oxide
Supercapacitors
Issue Date: 2014
Citation: Anjali, P., Vani, R., Sonia, T.S., Sreekumaran Nair, A., Ramakrishna, S., Ranjusha, R., Subramanian, K.R.V., Sivakumar, N., Gopi Mohan, C., Nair, S.V., Balakrishnan, A. (2014). Cerium doped NiO nanoparticles: A novel electrode material for high performance pseudocapacitor applications. Science of Advanced Materials 6 (1) : 94-101. ScholarBank@NUS Repository. https://doi.org/10.1166/sam.2014.1684
Abstract: The present study demonstrates a novel electrodeposition approach by which Ce3+ doped NiO nanoparticles coated on titanium foils can be processed into a high surface area electrode for rechargeable energy storage applications. A detailed study has been performed to elucidate how cerium substitution doping and redox reaction behaviors underlying these electrodes impact the cyclic and capacitive behavior of the electrode. These nanoparticles were synthesized via molten salt technique and exhibited particle size of ~65 nm. From the analysis of the relevant electrochemical parameters, an intrinsic correlation between the substitutional doping amount, capacitance and the internal resistance has been deduced and explained on the basis of relative contributions from the faradic properties of the Ce3+ doped NiO nanoparticles in different electrolytes of varied concentrations. These thin film electrodes exhibited specific mass capacitance value as high as 1500 Fg-1 and 1077 Fg-1 (1 Ag-1) measured from cyclic voltammetry and charge discharge curves respectively, which was found to be 5 times higher than the pristine NiO nanoparticles with a capacitance retention of >70% at the end of 2000th cycle. Further, a working model button cell employing these rechargeable electrodes is also demonstrated exhibiting an energy and power density of 92 Wh Kg-1 and 10 kW Kg-1, respectively. It has been shown that electrodes based on such nanoparticles can allow significant room for improvement in the cyclic stability and performance of a hybrid capacitor/battery system. © 2014 by American Scientific Publishers.
Source Title: Science of Advanced Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/115629
ISSN: 19472943
DOI: 10.1166/sam.2014.1684
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

6
checked on Dec 5, 2018

WEB OF SCIENCETM
Citations

6
checked on Nov 20, 2018

Page view(s)

111
checked on Dec 7, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.