scholarly journals A THERMOGRAVIMETRIC STUDY OF REDUCTION OF SILVER OXIDE UNDER NON-ISOTHERMAL CONDITIONS

2010 ◽  
Vol 1 (2) ◽  
pp. 144-150 ◽  
Author(s):  
D. Jelić ◽  
S. Mentus ◽  
J. Penavin-Škundrić ◽  
D. Bodroža ◽  
B. Antunović
Keyword(s):  
Silver Oxide ◽  
Isothermal Conditions ◽  
Thermogravimetric Study

Thermogravimetric study on carbothermic reduction of chromite ore under non-isothermal conditions

2014 ◽  
Vol 42 (6) ◽  
pp. 409-416 ◽  
Author(s):  
X. Hu ◽  
L. Sundqvist. Ökvist ◽  
Q. Yang ◽  
B. Björkman
Keyword(s):  
Carbothermic Reduction ◽  
Chromite Ore ◽  
Isothermal Conditions ◽  
Thermogravimetric Study

Thermogravimetric study of barium titanate

1973 ◽  
Author(s):  
James Nicholas Lingscheit
Keyword(s):  
Barium Titanate ◽  
Thermogravimetric Study

scholarly journals Optoelectronic properties of highly porous silver oxide thin film

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Ahmad Al-Sarraj ◽  
Khaled M. Saoud ◽  
Abdelaziz Elmel ◽  
Said Mansour ◽  
Yousef Haik
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electron Microscope ◽  
Plasma Etching ◽  
Silver Oxide ◽  
Oxidation Time ◽  
Oxide Thin Film ◽  
X Ray ◽  
Porous Silver ◽  
Highly Porous

Abstract In this paper, we report oxidation time effect on highly porous silver oxide nanowires thin films fabricated using ultrasonic spray pyrolysis and oxygen plasma etching method. The NW’s morphological, electrical, and optical properties were investigated under different plasma etching periods and the number of deposition cycles. The increase of plasma etching and oxidation time increases the surface roughness of the Ag NWs until it fused to form a porous thin film of silver oxide. AgNWs based thin films were characterized using X-ray diffraction, scanning electron microscope, transmission electron microscope, X-ray photoemission spectroscopy, and UV–Vis spectroscopy techniques. The obtained results indicate the formation of mixed mesoporous Ag2O and AgO NW thin films. The Ag2O phase of silver oxide appears after 300 s of oxidation under the same conditions, while the optical transparency of the thin film decreases as plasma etching time increases. The sheet resistance of the final film is influenced by the oxidation time and the plasma application periodicity. Graphic abstract

scholarly journals Phase transformations of the duplex stainless steel UNS S31803 under non-isothermal conditions

2021 ◽  
Vol 11 ◽  
pp. 1847-1851
Author(s):  
Gabrielle Cristine Lemos Duarte Freitas ◽  
Gláucio Soares da Fonseca ◽  
Luciano Pessanha Moreira ◽  
Duílio Norberto Ferronatto Leite
Keyword(s):  
Stainless Steel ◽  
Phase Transformations ◽  
Duplex Stainless Steel ◽  
Isothermal Conditions

Silver oxide model surface improves computational simulation of surface-enhanced Raman spectroscopy on silver nanoparticles

2021 ◽  
Author(s):  
Scott G. Harroun ◽  
Yaoting Zhang ◽  
Tzu-Heng Chen ◽  
Huan-Tsung Chang ◽  
Alexis Vallée-Bélisle
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Silver Oxide ◽  
Accurate Result ◽  
Computational Simulation ◽  
Surface Enhanced Raman Spectroscopy ◽  
Model Surface ◽  
Surface Enhanced ◽  
Model Surfaces ◽  
Surface Enhanced Raman

For simulation of SERS on silver nanoparticles, Ag2O can provide a more accurate result than standard model surfaces such as Ag+, Ag, Ag4+ and Ag4.

scholarly journals Pyrolysis and Oxidation of PAN in Dry Air. Thermoanalytical Methods

1970 ◽  
Vol 17 (1) ◽  
pp. 38-42
Author(s):  
Anna BIEDUNKIEWICZ ◽  
Pawel FIGIEL ◽  
Marta SABARA
Keyword(s):  
Temperature Increase ◽  
Heating Rates ◽  
Linear Change ◽  
Dry Air ◽  
Isothermal Conditions ◽  
Gaseous Products ◽  
Heterogeneous Processes ◽  
Temperature Ranges ◽  
Higher Temperature ◽  
Kinetics Of

The results of investigations on pyrolysis and oxidation of pure polyacrylonitrile (PAN) and its mixture with N,N-dimethylformamide (DMF) under non-isothermal conditions at linear change of samples temperature in time are presented. In each case process proceeded in different way. During pyrolysis of pure PAN the material containing mainly the product after PAN cyclization was obtained, while pyrolysis of PAN+DMF mixture gave the product after cyclization and stabilization. Under conditions of measurements, in both temperature ranges, series of gaseous products were formed.For the PAN-DMF system measurements at different samples heating rates were performed. The obtained results were in accordance with the kinetics of heterogeneous processes theory. The process rates in stages increased along with the temperature increase, and TG, DTG and HF function curves were shifted into higher temperature range. This means that the process of pyrolysis and oxidation of PAN in dry air can be carried out in a controlled way.http://dx.doi.org/10.5755/j01.ms.17.1.246

Sign in / Sign up

Export Citation Format

Share Document