Comparative study of oxidation of Co3Ti, CoTi and CoTi2 by X-ray photoelectron spectroscopy

1992 ◽  
Vol 2 (11) ◽  
pp. 1179 ◽  
Author(s):  
S. J. Garrett ◽  
Russell G. Egdell
Keyword(s):  
Comparative Study ◽  
Photoelectron Spectroscopy ◽  
X Ray

scholarly journals Comparative Study of ZnO Thin Films Grown on Quartz Glass and Sapphire (001) Substrates by Means of Magnetron Sputtering and High-Temperature Annealing

2019 ◽  
Vol 9 (21) ◽  
pp. 4509
Author(s):  
Weijia Yang ◽  
Fengming Wang ◽  
Zeyi Guan ◽  
Pengyu He ◽  
Zhihao Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Magnetron Sputtering ◽  
Comparative Study ◽  
Quartz Glass ◽  
Photoelectron Spectroscopy ◽  
Zno Thin Films ◽  
High Temperature Annealing ◽  
X Ray ◽  
Glass Substrates

In this work, we reported a comparative study of ZnO thin films grown on quartz glass and sapphire (001) substrates through magnetron sputtering and high-temperature annealing. Firstly, the ZnO thin films were deposited on the quartz glass and sapphire (001) substrates in the same conditions by magnetron sputtering. Afterwards, the sputtered ZnO thin films underwent an annealing process at 600 °C for 1 h in an air atmosphere to improve the quality of the films. X-ray diffraction, scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy (XPS), ultraviolet-visible spectra, photoluminescence spectra, and Raman spectra were used to investigate the structural, morphological, electrical, and optical properties of the both as-received ZnO thin films. The ZnO thin films grown on the quartz glass substrates possess a full width of half maximum value of 0.271° for the (002) plane, a surface root mean square value of 0.50 nm and O vacancies/defects of 4.40% in the total XPS O 1s peak. The comparative investigation reveals that the whole properties of the ZnO thin films grown on the quartz glass substrates are comparable to those grown on the sapphire (001) substrates. Consequently, ZnO thin films with high quality grown on the quartz glass substrates can be achieved by means of magnetron sputtering and high-temperature annealing at 600 °C.

Ferroelectric Bi4Ti3O12Films on Si(100) with An Ultrathin Buffer Layer of Silicon Oxynitride: A Comparative Study Using X-Ray Photoelectron Spectroscopy

2001 ◽  
Vol 40 (Part 1, No. 9B) ◽  
pp. 5564-5568 ◽  
Author(s):  
Eiji Rokuta ◽  
Yasushi Hotta ◽  
Jae-hyoung Choi ◽  
Hitoshi Tabata ◽  
Hikaru Kobayashi ◽  
...  
Keyword(s):  
Comparative Study ◽  
Buffer Layer ◽  
Photoelectron Spectroscopy ◽  
Silicon Oxynitride ◽  
X Ray

CO oxidation activity of Pt, Zn and ZnPt nanocatalysts: a comparative study by in situ near-ambient pressure X-ray photoelectron spectroscopy

Nanoscale ◽  
2018 ◽  
Vol 10 (14) ◽  
pp. 6566-6580 ◽  
Author(s):  
Ahmed Naitabdi ◽  
Anthony Boucly ◽  
François Rochet ◽  
Robert Fagiewicz ◽  
Giorgia Olivieri ◽  
...  
Keyword(s):  
Comparative Study ◽  
Co Oxidation ◽  
Chemical Reactions ◽  
Photoelectron Spectroscopy ◽  
Ambient Pressure ◽  
Oxidation Activity ◽  
X Ray

NAP-XPS allows the monitoring of chemical reactions on nanocatalysts.

scholarly journals Comparative Study of the Oxidation of NiAl(100) by Molecular Oxygen and Water Vapor Using Ambient-Pressure X-ray Photoelectron Spectroscopy

Langmuir ◽  
2016 ◽  
Vol 32 (44) ◽  
pp. 11414-11421 ◽  
Author(s):  
Qianqian Liu ◽  
Hailang Qin ◽  
Jorge Anibal Boscoboinik ◽  
Guangwen Zhou
Keyword(s):  
Water Vapor ◽  
Comparative Study ◽  
Molecular Oxygen ◽  
Photoelectron Spectroscopy ◽  
Ambient Pressure ◽  
X Ray

scholarly journals Development, Investigation, and Comparative Study of the Effects of Various Metal Oxides on Optical Electrochemical Properties Using a Doped PANI Matrix

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3344
Author(s):  
Amina Bekhoukh ◽  
Imane Moulefera ◽  
Lilia Sabantina ◽  
Abdelghani Benyoucef
Keyword(s):  
Comparative Study ◽  
Electrochemical Properties ◽  
Photoelectron Spectroscopy ◽  
High Performance ◽  
In Situ Polymerization ◽  
Polymeric Matrix ◽  
Hybrid Nanocomposites ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Pani Matrix

A comparative study was performed in order to analyze the effect of metal oxide (MO) on the properties of a polymeric matrix. In this study, polyaniline (PANI)@Al2O3, PANI@TiC, and PANI@TiO2 nanocomposites were synthesized using in situ polymerization with ammonium persulfate as an oxidant. The prepared materials were characterized by various analytical methods such as X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), thermogravimetric analysis (TGA), UV/visible (UV/Vis) spectroscopy, Fourier-transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). Furthermore, the conductive properties of the materials were tested using the four-point probe method. The presence of MO in the final product was confirmed by XPS, XRD, FTIR, and TEM, while spectroscopic characterization revealed interactions between the MOs and PANI. The results showed that the thermal stability was improved when the MO was incorporated into the polymeric matrix. Moreover, the results revealed that incorporating TiO2 into the PANI matrix improves the optical bandgap of the nanocomposite and decreases electrical conductivity compared to other conducting materials. Furthermore, the electrochemical properties of the hybrid nanocomposites were tested by cyclic voltammetry (CV) and galvanostatic charge/discharge (GCD). The obtained results suggest that the PANI@TiO2 nanocomposite could be a promising electrode material candidate for high-performance supercapacitor applications.

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