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


Autoria(s): Volanti, D. P.; Felix, A. A.; Suman, P. H.; Longo, E.; Varela, J. A.; Orlandi, M. O.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

07/12/2015

07/12/2015

08/06/2015

Resumo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Processo FAPESP: 2013/07296-2

Processo FAPESP: 2013/14647-6

Processo FAPESP: 2011/02408-1

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 N2) on the CuO nanostructures behavior under reducing conditions (H2 gas) was studied to analyze how a particular gas atmosphere can modify the oxidation state of the sensor material in real time.

Formato

18761-18767

Identificador

http://dx.doi.org/10.1039/c5cp02150b

Physical Chemistry Chemical Physics : Pccp, v. 17, n. 28, p. 18761-18767, 2015.

1463-9084

http://hdl.handle.net/11449/131505

10.1039/c5cp02150b

26119265

Idioma(s)

eng

Publicador

Royal Society of Chemistry

Relação

Physical Chemistry Chemical Physics : Pccp

Direitos

closedAccess

Tipo

info:eu-repo/semantics/article