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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Exsolution of Nickel Nanoparticles from Mixed-Valence Metal Oxides: A Quantitative Evaluation by Magnetic Measurements

Full text
Author(s):
Tinti, Victor B. [1] ; Marani, Debora [1] ; Ferlauto, Andre S. [1] ; Fonseca, Fabio C. [2] ; Esposito, Vincenzo [3] ; de Florio, Daniel Z. [1]
Total Authors: 6
Affiliation:
[1] Fed Univ ABC, CECS, BR-09210580 Santo Andre, SP - Brazil
[2] Nucl & Energy Res Inst, CCCH, BR-05508170 Sao Paulo, SP - Brazil
[3] DTU Energy, DK-2800 Lyngby - Denmark
Total Affiliations: 3
Document type: Journal article
Source: PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION; v. 37, n. 2 JAN 2020.
Web of Science Citations: 0
Abstract

A fast and accurate experimental method is demonstrated to assess the fraction of exsolved metallic nanoparticles using magnetic measurements. As a benchmark, nanometric metallic nickel exsolved from (La1-xSrx)(Cr1-yNiy)O-3-(delta) is used for its high relevance as a solid oxide fuel cell component. The method is based on the difference in the magnetic response of the exsolved metallic nickel (ferromagnetic) and Sr-doped lanthanum chromite ceramic matrix (paramagnetic). The exsolved nickel results in coherent nanoparticles pinned on the surface of the Sr-doped lanthanum chromite ceramic matrix, as evidenced by electron microscopy analyses. The results obtained indicate the procedure as a fast and sensitive method to study the exsolution of ferromagnetic nanoparticles. (AU)

FAPESP's process: 14/50279-4 - Brasil Research Centre for Gas Innovation
Grantee:Julio Romano Meneghini
Support Opportunities: Research Grants - Research Centers in Engineering Program
FAPESP's process: 15/24999-2 - New ceramic compounds for protonic solid oxide fuel cells
Grantee:Daniel Zanetti de Florio
Support Opportunities: Regular Research Grants
FAPESP's process: 15/23899-4 - Synthesis and Characterization of Nanoparticles Metallic in a Ceramic Matrix
Grantee:Victor Buratto Tinti
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 17/11937-4 - A sustainable path to methane conversion by advanced electrochemical technologies
Grantee:Fabio Coral Fonseca
Support Opportunities: Research Grants - Research Centers in Engineering Program