Title: Size-controlled synthesis of Ni and Co metal nanoparticles by the modified polyol method

Authors: Yuliya Demidova; Irina Simakova; Igor Prosvirin; Dmitry Yu. Murzin; Andrey Simakov

Addresses: Boreskov Institute of Catalysis, pr. Lavrentieva 5, 630090, Novosibirsk, Russia; Novosibirsk State University, Pirogova 2, 630090, Novosibirsk, Russia ' Boreskov Institute of Catalysis, pr. Lavrentieva 5, 630090, Novosibirsk, Russia; Novosibirsk State University, Pirogova 2, 630090, Novosibirsk, Russia ' Boreskov Institute of Catalysis, pr. Lavrentieva 5, 630090, Novosibirsk, Russia; Novosibirsk State University, Pirogova 2, 630090, Novosibirsk, Russia ' Process Chemistry Centre, Åbo Akademi University, FI-20500, Turku/Åbo, Finland ' Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km. 107 Carretera Tijuana a Ensenada, C.P. 22860, Ensenada, Baja California, México

Abstract: Colloidal Ni and Co nanoparticles were synthesised by a modified polyol method using sodium borohydride as a reducing agent. The influence of a gas atmosphere and a reduction temperature on nanoparticles formation was studied. A series of Co and Ni nanoparticles with the average particle sizes 1.8 to 2.8 and 2.6 to 9.8 nm, respectively, were obtained by varying synthesis conditions. Nanoparticle size was found to increase with the increase of the reduction temperature. The oxidative atmosphere was shown to favour nanoparticles growth as was demonstrated in the case of nickel.

Keywords: nickel; cobalt; nanoparticles; polyol synthesis; nanotechnology; reduction temperature effect; gas atmosphere effect; size-controlled synthesis; sodium borohydride.

DOI: 10.1504/IJNT.2016.074519

International Journal of Nanotechnology, 2016 Vol.13 No.1/2/3, pp.3 - 14

Available online: 04 Feb 2016 *

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