Singh, Manish Kumar and Agarwal, Arvind and Gopal, Ram and Swarnkar, Raj Kumar and Kotnala, Ravinder Kumar (2011) Dumbbell shaped nickel nanocrystals synthesized by a laser induced fragmentation method. Journal of Materials Chemistry , 21 (30). pp. 11074-11079. ISSN 0959-9428

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Abstract

Dumbbell shaped nickel nanoparticles have been synthesized for the first time by laser induced fragmentation of bulk nickel powder in aqueous sodium dodecyl sulfate. The focused output of the third harmonic from a nanosecond pulsed Nd:YAG laser operating at 35 mJ/pulse energy was used for the photo-fragmentation of micron size particles suspended in 50 mM aqueous medium. Nickel anisotropic nanocrystals have been grown by recrystallisation of nickel particles due to laser plasma generated in sodium dodecyl sulfate solution. The Vibrating Sample Magnetometer measurements of dumbbell shaped nickel nanostructure show their good ferromagnetic nature. The mechanism of the synthesis of nanostructure through melting and fragmentation has been also discussed.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Royal Society of Chemistry.
Subjects:	Chemistry Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Mr. Abhishek Yadav
Date Deposited:	27 Nov 2012 09:45
Last Modified:	27 Nov 2012 09:45
URI:	http://npl.csircentral.net/id/eprint/858

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