scholarly journals Shining light on the solid–liquid interface: in situ/operando monitoring of surface catalysis

2020 ◽  
Vol 10 (16) ◽  
pp. 5362-5385
Author(s):  
Leila Negahdar ◽  
Christopher M. A. Parlett ◽  
Mark A. Isaacs ◽  
Andrew M. Beale ◽  
Karen Wilson ◽  
...  
Keyword(s):  
Liquid Interface ◽  
Solid Catalyst ◽  
Chemical Transformations ◽  
Liquid Interfaces ◽  
Surface Catalysis ◽  
Catalytically Active ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Insight Into

Many industrially important chemical transformations occur at the interface between a solid catalyst and liquid reactants. In situ and operando spectroscopies offer unique insight into the reactivity of such catalytically active solid–liquid interfaces.

scholarly journals Bioapplications of DNA nanotechnology at the solid–liquid interface

2019 ◽  
Vol 48 (18) ◽  
pp. 4892-4920 ◽  
Author(s):  
Wenjing Wang ◽  
Sha Yu ◽  
Shan Huang ◽  
Sai Bi ◽  
Heyou Han ◽  
...  
Keyword(s):  
Dna Nanotechnology ◽  
Liquid Interface ◽  
Liquid Interfaces ◽  
Soft Interfaces ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Insight Into

This review provides an insight into the bioapplications of DNA nanotechnology at the solid–liquid interfaces, including flat interfaces, nanoparticle interfaces and soft interfaces.

scholarly journals Optical Fluorescence Microscopy for Spatially Characterizing Electron Transfer across a Solid-Liquid Interface on Heterogeneous Electrodes

MRS Advances ◽  
2016 ◽  
Vol 1 (42) ◽  
pp. 2867-2872
Author(s):  
Eric Choudhary ◽  
Jeyavel Velmurugan ◽  
James M. Marr ◽  
James A. Liddle ◽  
Veronika Szalai
Keyword(s):  
Fluorescence Microscopy ◽  
Grain Boundaries ◽  
Electrode Materials ◽  
Liquid Interface ◽  
Chemical Transformations ◽  
Heterogeneous Catalytic ◽  
Activity Measurements ◽  
Optical Fluorescence ◽  
Solid Liquid Interface ◽  
Solid Liquid

ABSTRACTHeterogeneous catalytic materials and electrodes are used for (electro)chemical transformations, including those important for energy storage and utilization.1, 2 Due to the heterogeneous nature of these materials, activity measurements with sufficient spatial resolution are needed to obtain structure/activity correlations across the different surface features (exposed facets, step edges, lattice defects, grain boundaries, etc.). These measurements will help lead to an understanding of the underlying reaction mechanisms and enable engineering of more active materials. Because (electro)catalytic surfaces restructure with changing environments,1 it is important to perform measurements in operando. Sub-diffraction fluorescence microscopy is well suited for these requirements because it can operate in solution with resolution down to a few nm. We have applied sub-diffraction fluorescence microscopy to a thin cell containing an electrocatalyst and a solution containing the redox sensitive dye p-aminophenyl fluorescein to characterize reaction at the solid-liquid interface. Our chosen dye switches between a nonfluorescent reduced state and a one-electron oxidized bright state, a process that occurs at the electrode surface. This scheme is used to investigate the activity differences on the surface of polycrystalline Pt, in particular to differentiate reactivity at grain faces and grain boundaries. Ultimately, this method will be extended to study other dye systems and electrode materials.

Morphological Features of the Solid-Liquid Interface of a Gallium Film

1991 ◽  
Vol 237 ◽  
Author(s):  
Richard D. Robinson ◽  
Ioannis N. Miaoulis
Keyword(s):  
Preliminary Investigation ◽  
Zone Melting ◽  
Liquid Interface ◽  
Silicon Films ◽  
Processing Conditions ◽  
Scanning Velocity ◽  
Solidification Interface ◽  
Solid Liquid Interface ◽  
Solid Liquid

ABSTRACTThis paper presents a new experimental method to investigate solid-liquid interface morphologies during Zone-Melting-Recrystallization at lower than the typical processing temperatures. Gallium films were used as a substitute for silicon films. In situ preliminary investigation identified three phenomena typically occurring during ZMR of silicon films: a) Transition from planar to dendritic to cellular morphologies was observed for different processing conditions; b) cell period proved to be dependant on scanning velocity; c) instabilities at the solidification interface at low heating strip temperatures were caused by supercooling and optical property variations as the material changed phase.

In-situ observation of solid-liquid interface during directional solidification of succinonitrile and pivalic acid

2005 ◽  
Vol 16 (1-4) ◽  
pp. 107-110
Author(s):  
A. P. Shpak ◽  
O. P. Fedorov ◽  
E. L. Zhivolub ◽  
Y. J. Bersudskyy ◽  
O. V. Shuleshova
Keyword(s):  
Directional Solidification ◽  
Pivalic Acid ◽  
Liquid Interface ◽  
In Situ Observation ◽  
Solid Liquid Interface ◽  
Solid Liquid
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