Optical Liquid

In-situ TEM of photo-electrochemistry

Technical Specs

 

1405 series
Number of Inlets 1 or 2 depending on model, single outlet
Total Electrodes 4-6*
Fiber Bandwidth 100 to 2000 nm*
EELS/EDS Compatible Yes
Heating Capability  Yes
TEM Compatibility TFS/FEI, JEOLHitachi

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Features

Featured Research

2D materials for photoelectrochemical water-splitting

Photoelectrochemistry provides a promising, environmentally friendly route to hydrogen production; however, the atomic scale mechanisms of the photocatalysts that facilitate the water splitting reaction are currently poorly understood. Researchers at the University of Pennsylvania have studied the photocatalytic activity of several 2D nanomaterials such as gold nanoprisms and MoS2 flakes. The research focused on the correlation between I-V characteristics with water splitting and simultaneous structural changes at the catalytically active sites. The I-V characteristic curves with the illuminated catalyst shows additional activity in the oxidation regime when operating in in-situ illuminated conditions, whereas these are not seen without catalytic particles. TEM images show the formation of gas bubbles induced at the working electrode with illumination of the catalysts corresponding to water splitting.

Image Right – Top: Schematic showing optical setup in liquid cell and redox IV characteristics of catalytic active material  with and without light.    Hydrogen evolution and bubble formation at the electrode-electrolyte interface. From left to right, the evolution of bubble formation is captured as a function of time and applied potential.

HBS internal data obtained in collaboration with Pawan Kumar, Deep Jariwala and Eric Stach at the University of Pennsylvania.

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