Dynamical Processes at the Solid / Liquid Interface

1996 ◽  
Vol 451 ◽  
Author(s):  
M. Giesen ◽  
M. Dietterle ◽  
D. Stapel ◽  
H. Ibach ◽  
D. M. Kolb
Keyword(s):  
Electrode Potential ◽  
Aqueous Electrolyte ◽  
Saturated Calomel Electrode ◽  
Transport Processes ◽  
Rapid Exchange ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Step Fluctuations ◽  
Equilibrium Step ◽  
Silver Atoms

ABSTRACTWe have investigated transport processes on a stepped Ag(111) surface in an aqueous electrolyte by analyzing the equilibrium step fluctuations as a function of the electrode potential. No influence of the electrolyte and the potential was found in the regime of negative potentials with respect to the saturated calomel electrode. As the potential becomes positive and approaches the dissolution limit, the increasing magnitude of the step fluctuations and the change in the time dependence indicate a rapid exchange of silver atoms with the electrolyte long before the silver begins to dissolve.

scholarly journals Diffusion-Controlled Growth of Oxygen Bubble Evolved from Nanorod-Array TiO2Photoelectrode

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Xiaowei Hu ◽  
Yechun Wang ◽  
Liejin Guo ◽  
Zhenshan Cao
Keyword(s):  
Bubble Growth ◽  
Aqueous Electrolyte ◽  
Experimental Studies ◽  
Nanorod Array ◽  
Diffusion Controlled ◽  
Oxygen Bubble ◽  
Starting Point ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Interface Movement

Nanorod-array structure gains its popularity in photoelectrode design for water splitting. However, the structure’s effects on solid-liquid interface interaction and reaction product transportation still remain unsolved. Gas bubble generally evolved from photoelectrodes, which provides a starting point for the problem-solving. Based on this, investigations on the gas-evolving photoelectrode are carried out in this paper. By experimental studies of wettability on the photoelectrode nanorod-array surface and oxygen bubble growth from anode, we analyzed the interaction affecting the gas-solid-liquid contact behaviors and product transportation mechanism, which is controlled by diffusion due to the concentration gradient of dissolved gases in the aqueous electrolyte and the microconvection caused by the bubble interface movement. In the end, based on the bubble growth characteristics ofRB(t)~t0.5in the experiment, a model describing the product transport mechanism was presented.

Step fluctuations on metals in contact with an electrolyte: a new access to dynamical processes at the solid/liquid interface

1997 ◽  
Vol 384 (1-3) ◽  
pp. 168-178 ◽  
Author(s):  
Margret Giesen ◽  
Michael Dietterle ◽  
Dietmar Stapel ◽  
Harald Ibach ◽  
Dieter M. Kolb
Keyword(s):  
Liquid Interface ◽  
Dynamical Processes ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Step Fluctuations

Atom-probe analysis of the solid-liquid interface

1995 ◽  
Vol 53 ◽  
pp. 676-677
Author(s):  
J.A. Panitz
Keyword(s):  
Molecular Level ◽  
Selective Adsorption ◽  
Electronic Devices ◽  
Atom Probe ◽  
Chemical Agent ◽  
Hostile Environment ◽  
Solid Interface ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Chemically Selective

The first few atomic layers of a solid can form a barrier between its interior and an often hostile environment. Although adsorption at the vacuum-solid interface has been studied in great detail, little is known about adsorption at the liquid-solid interface. Adsorption at a liquid-solid interface is of intrinsic interest, and is of technological importance because it provides a way to coat a surface with monolayer or multilayer structures. A pinhole free monolayer (with a reasonable dielectric constant) could lead to the development of nanoscale capacitors with unique characteristics and lithographic resists that surpass the resolution of their conventional counterparts. Chemically selective adsorption is of particular interest because it can be used to passivate a surface from external modification or change the wear and the lubrication properties of a surface to reflect new and useful properties. Immunochemical adsorption could be used to fabricate novel molecular electronic devices or to construct small, “smart”, unobtrusive sensors with the potential to detect a wide variety of preselected species at the molecular level. These might include a particular carcinogen in the environment, a specific type of explosive, a chemical agent, a virus, or even a tumor in the human body.

THERMAL BOUNDARY MODULATION EFFECT ON THE FLOW AND CONCENTRATION FIELD ADJACENT TO THE SOLID-LIQUID INTERFACE

Equipment ◽  
2006 ◽  
Author(s):  
E. Semma ◽  
Mohammed El Ganaoui ◽  
Victoria Timchenko ◽  
Eddie Leonardi
Keyword(s):  
Concentration Field ◽  
Liquid Interface ◽  
Modulation Effect ◽  
Solid Liquid Interface ◽  
Solid Liquid

The role of (bio)surfactant sorption in promoting the bioavailability of nutrients localized at the solid-water interface

1999 ◽  
Vol 39 (7) ◽  
pp. 91-98 ◽  
Author(s):  
Ryan N. Jordan ◽  
Eric P. Nichols ◽  
Alfred B. Cunningham
Keyword(s):  
Mass Transfer ◽  
Cell Membrane ◽  
Substrate Concentration ◽  
Water Interface ◽  
Industrial Systems ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Surfactant Sorption

Bioavailability is herein defined as the accessibility of a substrate by a microorganism. Further, bioavailability is governed by (1) the substrate concentration that the cell membrane “sees,” (i.e., the “directly bioavailable” pool) as well as (2) the rate of mass transfer from potentially bioavailable (e.g., nonaqueous) phases to the directly bioavailable (e.g., aqueous) phase. Mechanisms by which sorbed (bio)surfactants influence these two processes are discussed. We propose the hypothesis that the sorption of (bio)surfactants at the solid-liquid interface is partially responsible for the increased bioavailability of surface-bound nutrients, and offer this as a basis for suggesting the development of engineered in-situ bioremediation technologies that take advantage of low (bio)surfactant concentrations. In addition, other industrial systems where bioavailability phenomena should be considered are addressed.

Observation of Femtosecond Acoustic Anomaly in a Solid Liquid Interface

2020 ◽  
Vol 124 (5) ◽  
pp. 2987-2993
Author(s):  
Chi-Kuang Sun ◽  
Yi-Ting Yao ◽  
Chih-Chiang Shen ◽  
Mu-Han Ho ◽  
Tien-Chang Lu ◽  
...  
Keyword(s):  
Liquid Interface ◽  
Acoustic Anomaly ◽  
Solid Liquid Interface ◽  
Solid Liquid
Sign in / Sign up

Export Citation Format

Share Document