Exsolution of Nickel Nanoparticles from Mixed-Vale... - BV FAPESP
Advanced search
Start date
Betweenand
(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