Issue 40, 2014
From the journal:

RSC Advances

Dipentaerythritol: a novel additive for the precipitation of dispersed Ni particles in polyols

Angshuman Pal,a   Igor Sevonkaev,a   Brandon Bartling,b   Job Rijssenbeekb  and  Dan V. Goia*a  

* Corresponding authors

a Center for Advanced Materials Processing, Clarkson University, Potsdam, USA
E-mail: goiadanv@clarkson.edu

b GE Global Research, One Research Circle, Niskayuna, USA

Abstract

Highly dispersed uniform Ni particles ranging in size from 0.1 to 1.2 μm were synthesized by reducing nickel carbonate in polyols in the presence of dipentaerythritol (DPE) and noble metal salts. DPE was essential in preventing the aggregation of nickel particles, while the noble metal (‘seeding’ approach) effectively tailored their size. Ferromagnetic particles with a cubic closed packed (ccp) crystal habit were obtained using short reduction times at temperatures below 200 °C. Non-magnetic particles with hexagonal closed packed (hcp) structure were obtained after extended heating times (>16 hours) at temperatures above 220 °C. The temperature of the reduction and heat-treatment process was adjusted by using polyols with different boiling points.

Graphical abstract: Dipentaerythritol: a novel additive for the precipitation of dispersed Ni particles in polyols

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Article information

DOI
https://doi.org/10.1039/C4RA01464B
Article type
Paper
Submitted
19 Feb 2014
Accepted
29 Apr 2014
First published
29 Apr 2014

RSC Adv., 2014,4, 20909-20914

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Dipentaerythritol: a novel additive for the precipitation of dispersed Ni particles in polyols

A. Pal, I. Sevonkaev, B. Bartling, J. Rijssenbeek and D. V. Goia, RSC Adv., 2014, 4, 20909 DOI: 10.1039/C4RA01464B

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