Preparation of hcp and fcc Ni and Ni/NiO nanoparticles using a citric acid assisted Pechini-type method

L. A. García-Cerda*, K. M. Bernal-Ramos, Sagrario M. Montemayor, M. A. Quevedo-López, R. Betancourt-Galindo, D. Bueno-Báques

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

The preparation and characterization of hcp and fcc Ni and Ni/NiO nanoparticles is reported. Ni and Ni/NiO nanoparticles were obtained starting from a precursor material prepared using a citric assisted Pechini-type method and, then, followed by a calcination of the precursor in air at either 400 or 600C for different times. The precursor was analyzed using thermogravimetric and differential thermal methods (TGA-DTA), and the resulting nanoparticles were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and vibrational sample magnetometry. Nanoparticles showed a phase transformation for Ni from hcp to fcc and/or to fcc NiO structure as the calcination time increased. The influence of the phase transition and the formation of NiO on the magnetic properties of the samples are discussed.

Original languageEnglish
Article number162495
JournalJournal of Nanomaterials
Volume2011
DOIs
StatePublished - 2011
Externally publishedYes

Fingerprint

Dive into the research topics of 'Preparation of hcp and fcc Ni and Ni/NiO nanoparticles using a citric acid assisted Pechini-type method'. Together they form a unique fingerprint.

Cite this