Polymer-Mediated Synthesis of Fine-Sized Cobalt Particles

Sinha, Arvind and Das, Swapan K and Ravi Kumar, B and Chakraborty, S and Rao, Venkatesh and Ramachandrarao, P (2000) Polymer-Mediated Synthesis of Fine-Sized Cobalt Particles. Journal of Materials Synthesis and Processing, 8 (2). pp. 109-113.

Restricted to NML users only. Others may use ->



A novel method to synthesize monodisperse, fine-sized cobalt particles (average particle size 200 nm) by a polymer matrix (not commonly known for chemical chelation)-mediated sodium borohydride reduction of cobalt chloride has been demonstrated and discussed. As against the conventional concept of using a supramolecule as a growth Poisson during the crystallization of inorganic salt from solution, the present procedure adopts the path very similar to biomineralization. The polymer matrix chelates the cobalt ions by a combined process of physical entrapment and chemical chelation. The process leads to a controlled nucleation and ordered growth of cobalt salt in polymer matrix. Orderly grown cobalt salt on reduction yields monodisperse cobalt particles having uniform size and morphology.

Item Type:Article
Official URL/DOI:http://www.springerlink.com/content/x908551241u255...
Uncontrolled Keywords:Biomimetic - polymer mediated - cobalt - biomineralization
Divisions:Material Science and Technology
ID Code:778
Deposited By:Sahu A K
Deposited On:01 Jun 2010 12:02
Last Modified:09 Feb 2012 13:10

Repository Staff Only: item control page