Results 81 to 90 of about 26,363 (303)

Photoelectrochemical studies of passive films

open access: yesElectrochimica Acta, 1986
Abstract The application of photoelectrochemistry as a means to study passive films is reviewed. A description of the theoretical background of photoelectrochemical behavior of passive metal electrodes is given that includes photoprocesses in crystalline and amorphous passive films, photoemission from the underlying metal, some characteristics of ...
openaire   +1 more source

Electrochemical characterisation and modelling of passive films on Ni- and Fe-based alloys [PDF]

open access: yes, 2002
The behaviour of oxide films formed on Ni- and Fe-based alloys in different environments has been studied electrochemically. The aim was to study the effect of pH, temperature and Cr content of the alloy on the protectiveness of the oxide film using a ...
Kinnunen, Petri
core  

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

open access: yesAdvanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min   +13 more
wiley   +1 more source

Electrochemical Investigation of Passive Film Properties on Low Alloy Steel Rebars in Cement Extract and Saturated Ca(OH)2 Solutions

open access: yesInternational Journal of Electrochemical Science, 2019
In this paper, the differences in the passivation behaviours of low alloy steel rebars in saturated Ca(OH)2 solution (SC) and cement extract solution (CE) were studied by Mott-Schottky, XPS and cyclic potentiodynamic polarisation (CPP) analyses.
Shimin Li   +10 more
doaj   +1 more source

Machine Learning‐Assisted Inverse Design of Soft and Multifunctional Hybrid Liquid Metal Composites

open access: yesAdvanced Functional Materials, EarlyView.
A machine learning framework is presented for inverse design of synthesizable multifunctional composites containing both liquid metal and solid inclusions. By integrating physics‐based modeling, data‐driven prediction, and Bayesian optimization, the approach enables intelligent design of experiments to identify optimal compositions and realize these ...
Lijun Zhou   +5 more
wiley   +1 more source

Effect of solution pH on the electrochemical behaviour of AISI 304 austenitic and AISI 430 ferritic stainless steels in concentrated acidic media

open access: yesEgyptian Journal of Petroleum, 2015
In this study, the effect of solution pH on the electrochemical behaviour of AISI 304 austenitic and AISI 430 ferritic stainless steels at open circuit potential (OCP) in concentrated acidic solutions was studied.
A. Fattah-alhosseini, S. Vafaeian
doaj   +1 more source

The growth and stability of passive films

open access: yes, 1993
This paper will consider the growth and breakdown of passive oxide films on metals and alloys. Emphasis is placed on the use of surface-analytical techniques, particularly secondary ion mass spectrometry (SIMS) to characterize oxides formed on Fe and Fe ...
Bardwell, J. A.   +4 more
core  

The study of surface processes under electrochemical control in the presence of inertial cavitation [PDF]

open access: yes, 2005
In some circumstances, the erosive effects of inertial (transient) cavitation have been usefully employed in the acceleration of chemical processes that are dependent on surface reactions.
Birkin, Peter R.   +2 more
core   +1 more source

Moving Beyond Oligoethers: Polar Side‐Chain Engineering for Aqueous Mixed Ionic–Electronic Conductors

open access: yesAdvanced Functional Materials, EarlyView.
We investigate how side‐chain chemistry and hydrogen bonding affect electrochemical doping in poly(propylenedioxythiophene) polymers. Replacing oligoether side chains with hydroxyl or carboxylic acid groups nearly triples electrochemical conductivity.
Joshua M. Rinehart   +5 more
wiley   +1 more source

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