Results 21 to 30 of about 623 (163)

Capacitance Electrochemical pH Sensor Based on Different Hafnium Dioxide (HfO₂) Thicknesses

Chemosensors, 2021
Over the past years, to achieve better sensing performance, hafnium dioxide (HfO2) has been studied as an ion-sensitive layer. In this work, thin layers of hafnium dioxide (HfO2) were used as pH-sensitive membranes and were deposited by atomic layer ...
Zina Fredj, Abdoullatif Baraket, Mounir Ben Ali, Nadia Zine, Miguel Zabala, Joan Bausells, Abdelhamid Elaissari, Nsikak U. Benson, Nicole Jaffrezic-Renault, Abdelhamid Errachid   +9 more
doaj   +1 more source

Electrochemical Behavior Analyses of Anodic Oxide Film Obtained on TA2 Pure Titanium in Sulfuric Acid Electrolyte

Chemical Engineering Transactions, 2017
Anodic oxide films on pure titanium surface were prepared with potentiostatic method in the 10% sulfuric acid electrolyte. The chrono-amperometric curve, potentiodynamic polarization curve, electrochemical impedance spectroscopy and Mott-Schottky curve ...
Guangming Yang, Dalai Ma, Lu Liu, Ju Rong, Xiaohua Yu   +4 more
doaj   +1 more source

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

International 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, Hongying Yu, Huimin Meng, Dongbai Sun   +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

Journal 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, Malinee Kaewpanha, Theerachai Bongkarn, Apiluck Eiad-Ua, Tawat Suriwong   +4 more
doaj   +1 more source

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

Molecules, 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, Huizhong Xu, Beibei Han, Jing Xu   +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]

Materials 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, Renata Braga Soares, Pedro Henrique R. Pereira, Roberto B. Figueiredo, Vanessa Freitas C. Lins, Terence G. Langdon   +5 more
doaj   +1 more source

Semiconducting behavior of the anodically passive films formed on AZ31B alloy

Journal 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

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

Results 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, L. Yate, M.J. Pinzón, J.C. Caicedo   +3 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Effect of secondary passivation on corrosion behavior and semiconducting properties of passive film of 2205 duplex stainless steel

Journal of Materials Research and Technology, 2021
The effects of secondary passivation on the electrochemical behavior of passive films on the surface of 2205 duplex stainless steel were studied by potentiodynamic polarization, EIS and Mott–Schottky analysis.
Guangming Yang, Yafei Du, Siyao Chen, Yongsheng Ren, Yulong Ma   +4 more
doaj   +1 more source