Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 17, Issue 28, Pages 18761-18767Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cp02150b
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Funding
- Sao Paulo Research Foundation (FAPESP) [13/07296-2, 13/14647-6, 11/02408-1]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [13/07296-2, 13/14647-6, 11/02408-1] Funding Source: FAPESP
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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.
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