Modification of Capacitive Charge Storage of TiO2 with Nickel Doping

For practical deployment of supercapacitors characterized by high energy density, power density and long cycle life, they must be realized using low cost and environmentally benign materials. Titanium dioxide (TiO2) is largely abundant in the earth's crust; however, they show inferior supercapa...

Full description

Bibliographic Details
Main Authors:	Krishnan, Syam G., Archana, P. S., Vidyadharan, Baiju, Izan Izwan, Misnon, Vijayan, Bincy Lathakumary, Nair, V. Manikantan, Gupta, Arunava, Rajan, Jose
Format:	Article
Language:	English
Published:	Elsevier Ltd 2016
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/7338/ http://umpir.ump.edu.my/id/eprint/7338/ http://umpir.ump.edu.my/id/eprint/7338/ http://umpir.ump.edu.my/id/eprint/7338/1/Modification%20of%20Capacitive%20Charge%20Storage%20of%20TiO2%20with%20Nickel%20Doping.pdf

id	ump-7338
recordtype	eprints
spelling	ump-73382018-02-08T03:20:57Z http://umpir.ump.edu.my/id/eprint/7338/ Modification of Capacitive Charge Storage of TiO2 with Nickel Doping Krishnan, Syam G. Archana, P. S. Vidyadharan, Baiju Izan Izwan, Misnon Vijayan, Bincy Lathakumary Nair, V. Manikantan Gupta, Arunava Rajan, Jose Q Science (General) For practical deployment of supercapacitors characterized by high energy density, power density and long cycle life, they must be realized using low cost and environmentally benign materials. Titanium dioxide (TiO2) is largely abundant in the earth's crust; however, they show inferior supercapacitive electrochemical properties in most electrolytes for practical deployment. In this paper, we show that nickel doped TiO2 (Ni:TiO2) nanowires developed by electrospinning showed five times larger capacitance (∼200 F g−1) than the undoped analogue (∼40 F g−1). Electrochemical measurements show that the Ni:TiO2 nanowires have 100% coulombic efficiency. The electrodes showed no appreciable capacitance degradation for over 5000 cycles. The superior charge storage capability of the Ni:TiO2 could be due to its high electrical conductivity that resulted in five orders of magnitude higher ion diffusion as determined by cyclic voltammetry and electrochemical impedance spectroscopy measurements. Elsevier Ltd 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7338/1/Modification%20of%20Capacitive%20Charge%20Storage%20of%20TiO2%20with%20Nickel%20Doping.pdf Krishnan, Syam G. and Archana, P. S. and Vidyadharan, Baiju and Izan Izwan, Misnon and Vijayan, Bincy Lathakumary and Nair, V. Manikantan and Gupta, Arunava and Rajan, Jose (2016) Modification of Capacitive Charge Storage of TiO2 with Nickel Doping. Journal of Alloys and Compounds, 684. pp. 328-334. ISSN 0925-8388 (print); 1873-4669 (online) http://dx.doi.org/10.1016/j.jallcom.2016.05.183 DOI: 10.1016/j.jallcom.2016.05.183
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Krishnan, Syam G. Archana, P. S. Vidyadharan, Baiju Izan Izwan, Misnon Vijayan, Bincy Lathakumary Nair, V. Manikantan Gupta, Arunava Rajan, Jose Modification of Capacitive Charge Storage of TiO2 with Nickel Doping
description	For practical deployment of supercapacitors characterized by high energy density, power density and long cycle life, they must be realized using low cost and environmentally benign materials. Titanium dioxide (TiO2) is largely abundant in the earth's crust; however, they show inferior supercapacitive electrochemical properties in most electrolytes for practical deployment. In this paper, we show that nickel doped TiO2 (Ni:TiO2) nanowires developed by electrospinning showed five times larger capacitance (∼200 F g−1) than the undoped analogue (∼40 F g−1). Electrochemical measurements show that the Ni:TiO2 nanowires have 100% coulombic efficiency. The electrodes showed no appreciable capacitance degradation for over 5000 cycles. The superior charge storage capability of the Ni:TiO2 could be due to its high electrical conductivity that resulted in five orders of magnitude higher ion diffusion as determined by cyclic voltammetry and electrochemical impedance spectroscopy measurements.
format	Article
author	Krishnan, Syam G. Archana, P. S. Vidyadharan, Baiju Izan Izwan, Misnon Vijayan, Bincy Lathakumary Nair, V. Manikantan Gupta, Arunava Rajan, Jose
author_facet	Krishnan, Syam G. Archana, P. S. Vidyadharan, Baiju Izan Izwan, Misnon Vijayan, Bincy Lathakumary Nair, V. Manikantan Gupta, Arunava Rajan, Jose
author_sort	Krishnan, Syam G.
title	Modification of Capacitive Charge Storage of TiO2 with Nickel Doping
title_short	Modification of Capacitive Charge Storage of TiO2 with Nickel Doping
title_full	Modification of Capacitive Charge Storage of TiO2 with Nickel Doping
title_fullStr	Modification of Capacitive Charge Storage of TiO2 with Nickel Doping
title_full_unstemmed	Modification of Capacitive Charge Storage of TiO2 with Nickel Doping
title_sort	modification of capacitive charge storage of tio2 with nickel doping
publisher	Elsevier Ltd
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/7338/ http://umpir.ump.edu.my/id/eprint/7338/ http://umpir.ump.edu.my/id/eprint/7338/ http://umpir.ump.edu.my/id/eprint/7338/1/Modification%20of%20Capacitive%20Charge%20Storage%20of%20TiO2%20with%20Nickel%20Doping.pdf
first_indexed	2023-09-18T22:03:58Z
last_indexed	2023-09-18T22:03:58Z
_version_	1777414583857709056

Modification of Capacitive Charge Storage of TiO2 with Nickel Doping

Similar Items