Zeolite membrane-based artificial photosynthetic assembly for long-lived charge separation

Article Abstract:

A study focuses on a Ru polypyridlyl complex [(bpy)2Ru(II)L, bpy = bipyridine, L = 1,2-bis[4-(4'-2,2'-bipyridyl) ethene] encapsulated on the surface of a pinhole-free zeolite membrane by quaternization of L. The zeolite membrane based architecture is found to have the necessary features for not only incorporating molecular assemblies with long-lived charge separation but also for ready exploitation of the spatially separated charges to store visible light energy in chemical species.

Analytical Laboratory Instrument Manufacturing, Analytical instruments, Zeolites, Scanning Microscopy, Analysis, Spectra, Electron transport, Structure

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Excited-state dynamics of 5,10,15,20-tetraphenyl- 21H,23H-porphine manganese(III) chloride encapsulated in TiMCM-41 and MCM-41; proved by fs-diffuse reflectance laser photolysis.

Article Abstract:

The fast electron or charge-transfer processes between metallo-porphyrin and mesoporous silica by using the ultrafast time-resolved diffuse reflectance spectroscopy is investigated. The investigation concluded that mesoporous MCM-41 and TiMCM-41 molecular sieves are found to be promising hosts for long-lived photoinduced charge separation of adsorbed 5,10,15,20-tetraphenyl- 21H,23H-porphine manganese(III) chloride (Mn(super III)TPP(Cl)).

Usage, Reflectance spectroscopy, Adsorption

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Field emission from manganese oxide nanotubes synthesized by cyclic voltammetric electrodeposition

Article Abstract:

The cyclic voltammetric elctrodeposition method is used to electrochemically synthesize manganese oxide nanotubes. It is concluded that manganese oxide nanotubes are useful for field-emission applications because they can be easily and economically synthesized at low temperature.

Electrochemistry, Nanotubes

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