Effect of reaction conditions on size and morphology of ultrasonically prepared Ni(OH)(2) powders

S Cabanas-Polo; K S Suslick; A J Sanchez-Herencia

doi:10.1016/j.ultsonch.2010.11.017

Effect of reaction conditions on size and morphology of ultrasonically prepared Ni(OH)(2) powders

Ultrason Sonochem. 2011 Jul;18(4):901-6. doi: 10.1016/j.ultsonch.2010.11.017. Epub 2010 Dec 4.

Authors

S Cabanas-Polo¹, K S Suslick, A J Sanchez-Herencia

Affiliation

¹ Instituto de Cerámica y Vidrio (CSIC), C/Kelsen, 5, 28049 Madrid, Spain. scabanas@icv.csic.es

PMID: 21190889
DOI: 10.1016/j.ultsonch.2010.11.017

Abstract

Modern electrochemical devices require the morphological control of the active material. In this paper the synthesis of nickel hydroxide, as common active compound of such devices, is presented. The influence of ultrasound in the synthesis of nickel hydroxide from aqueous ammonia complexes is studied showing that ultrasound allows the fabrication of flower-like particles with sizes ranging in between 0.7 and 1.0μm in contrast with the 6-8μm particles obtained in the absence of ultrasound. The influence of gas flow, temperature of the process and surfactants in the ultrasonically prepared powders is discussed in term of shape, size and agglomeration of the particles. Adjusting the experimental condition, spherical or platelet-like particles are obtained with sizes ranging from 1.3μm to 200nm.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.