Electronic structure comparison of Cu 2p and O 1s X-Ray photoelectron spectra for CuxO nanofibers (x=1, 2, i)

被引：20

作者：

Pinon-Espitia, M. ^{[1
]}

Lardizabal-Gutierrez, D. ^{[1
]}

Camacho-Rios, M. L. ^{[1
]}

Herrera-Perez, G. ^{[2
]}

Ochoa-Lara, M. T. ^{[1
]}

机构：

[1] Ctr Invest Mat Avanzados SC, Lab Nacl Nanotecnol, Miguel de Cervantes 120, Chihuahua, Chih, Mexico

[2] Catedrat CONACyT, Ctr Invest Mat Avanzados CIMAV SC, Miguel de Cervantes 120, Chihuahua 31136, Chih, Mexico

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2021年 / 272卷

关键词：

XPS; Cu; 2p; O; 1s; Tenorite; Cuprite; XPS; THICKNESS;

D O I：

10.1016/j.matchemphys.2021.124981

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article reports the evaluation and comparison the electronic structure of Cu 2p and O 1s spectra, using x-ray photoelectron spectroscopy (XPS) and the charge transfer multiplet calculation by the CTM4XAS (software). This research is relevant in the study of CuO - Cu2O and CuO nanofibers (NFs) that were synthesized with temperatures of 600 degrees C (CuO600) and 700 degrees C (CuO700), through the electrospinning method (EM). The NFs are analyzed with x-ray diffraction, scanning electron microscopy and high-resolution-scanning electron transmission microscopy. The expected results are innovative because the sample exhibits multivalent states (Cu1+, Cu2+, Cui+) and the reproducibility of the stoichiometry Cu2.0O0.88, Cu2.0O2.73, and Cu2.0O0.9 , Cu1.0O1.76, with uncertainties in the fittings, 3.7282 x 10-5 eV and 4.05987 x 10-5 eV. This was possible by doing peak fittings with modern parameters. The NFs present mixtures of oxides and charge transfer generated by oxygen vacancies (Vo).

引用

页数：8

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