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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.)

Monitoring a CuO gas sensor at work: an advanced in situ X-ray absorption spectroscopy study

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Author(s):
Volanti, D. P. [1, 2] ; Felix, A. A. [2] ; Suman, P. H. [2] ; Longo, E. [2] ; Varela, J. A. [2] ; Orlandi, M. O. [2]
Total Authors: 6
Affiliation:
[1] UNESP Univ Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, Dept Quim & Ciencias Ambientais, BR-15054000 Sao Jose Do Rio Preto - Brazil
[2] UNESP Univ Estadual Paulista, Inst Quim, Dept Fis Quim, BR-14800900 Araraquara - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Physical Chemistry Chemical Physics; v. 17, n. 28, p. 18761-18767, 2015.
Web of Science Citations: 13
Abstract

X-ray absorption near edge structure (XANES) and electrical measurements were used to elucidate the local structure and electronic changes of copper(II) oxide (CuO) nanostructures under working conditions. For this purpose, a sample holder layout was developed enabling the simultaneous analysis of the spectroscopic and electrical properties of the sensor material under identical operating conditions. The influence of different carrier gases (e.g., air and N-2) on the CuO nanostructures behavior under reducing conditions (H-2 gas) was studied to analyze how a particular gas atmosphere can modify the oxidation state of the sensor material in real time. (AU)

FAPESP's process: 13/14647-6 - Gas sensors based on p-type metal semiconductor oxides: in-situ and operando advanced studies
Grantee:Anderson André Felix
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 11/02408-1 - Morphological control of nanostructured copper (II) oxide and zinc oxide applied in gas sensors
Grantee:Diogo Paschoalini Volanti
Support type: Scholarships in Brazil - Post-Doctorate