Results 31 to 40 of about 9,090 (227)

Correlation between Corrosion Behaviour and Semiconductor Characteristics of Passive Film on Incoloy 825 in Ammonium Chloride Solution

open access: yesInternational Journal of Electrochemical Science, 2020
The correlation of the corrosion behaviour and semiconductor characteristics of a passive film on Incoloy 825 in 5%~30% NH4Cl solutions was investigated using potentiodynamic polarization scan, Mott-Schottky curves,scanning electron microscope(SEM) and ...
Jinbiao Guo   +3 more
doaj   +1 more source

Effect of Nb doping on the structural, optical, and photocatalytic properties of SrTiO3 nanopowder synthesized by sol-gel auto combustion technique

open access: yesJournal of Asian Ceramic Societies, 2022
Metal oxide photocatalyst is a promising wastewater treatment process due to its simplicity, high efficiency, and low cost, as well as being environmentally friendly and non-energy consuming. The perovskite structure material, SrTi1−xNbxO3 (STNO) with x =
Pornnipa Nunocha   +4 more
doaj   +1 more source

Construction of N-Doped Carbon-Modified Ni/SiO2 Catalyst Promoting Cinnamaldehyde Selective Hydrogenation

open access: yesMolecules, 2023
At present, the selective hydrogenation of α, β-unsaturated aldehydes remains a challenge due to competition between unsaturated functional groups (C=C and C=O).
Yongwang Ren   +3 more
doaj   +1 more source

Effect of High-pressure Torsion on Corrosion Behavior of a Solution-treated Al-Mg-Sc Alloy in a Saline Solution [PDF]

open access: yesMaterials Research, 2019
The effect of the increase in crystalline defects in the structure generated by high-pressure torsion (HPT) on the corrosion behavior of metallic materials is not well understood.
Michelle Dias Alves Lage   +5 more
doaj   +1 more source

Built-in potential and validity of Mott--Schottky analysis in organic bulk heterojunction solar cells

open access: yes, 2011
We investigated poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61 butyric acid methyl ester bulk heterojunction (BHJ) solar cells by means of pulsed photocurrent, temperature dependent current-voltage and capacitance-voltage measurements.
Deibel, Carsten   +2 more
core   +1 more source

Potassium-chemical synthesis of 3D graphene from CO2 and its excellent performance in HTM-free perovskite solar cells [PDF]

open access: yes, 2017
The conversion of greenhouse gas CO2 into novel materials is the most promising approach to solve greenhouse gas issues. Herein, we report for the first time the reaction of potassium with CO2 to synthesize three-dimensional honeycomb-like structured ...
Garcia Blanco, Andres Alberto   +7 more
core   +1 more source

On Mott-Schottky analysis interpretation of capacitance measurements in organometal perovskite solar cells [PDF]

open access: yes, 2016
Capacitance response of perovskite-based solar cells (PSCs) can be exploited to infer underlying physical mechanisms, both in the materials bulk and at outer interfaces. Particularly interesting is applying the depletion layer capacitance theory to PSCs,
Almora O.   +5 more
core   +2 more sources

Semiconducting behavior of the anodically passive films formed on AZ31B alloy

open access: yesJournal of Magnesium and Alloys, 2014
This work includes determination of the semiconductor character and estimation of the dopant levels in the passive film formed on AZ31B alloy in 0.01 M NaOH, as well as the estimation of the passive film thickness as a function of the film formation ...
A. Fattah-alhosseini, M. Sabaghi Joni
doaj   +1 more source

Insights into mechanical compression and the enhancement in performance by Mg(OH)2 coating in flexible dye sensitized solar cells [PDF]

open access: yes, 2014
The engineering of flexible dye sensitized solar cells (DSCs) by mechanical compression is one of the methods that allow low temperature processing of these devices.
García-Cañadas, Jorge   +2 more
core   +1 more source

Optical and semiconductive properties of binary and ternary thin films from the Nb-Ti-O system

open access: yesResults in Physics, 2018
A study has been conducted based on the Mott-Schottky model acquisition by potentiodynamic electrochemical impedance spectroscopy, to determine the physical-chemical properties of binary TiO2, Nb2O5 and ternary Nb-Ti-O thin films (semiconductor type ...
W. Aperador   +3 more
doaj   +1 more source

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