Electrochemistry of mesoporous organosilica of MCM-41 type containing 4,4-bipyridinium units: voltammetric response and electrocatalytic effect on 1,4-dihydrobenzoquinone oxidation

Article Abstract:

Study of the electrochemistry of a novel organic-inorganic material in which 4,4-bipyridinium units (BP) are covalently attached to the walls of a periodic mesoporous organisilica (PMO) of the MCM-41 type is reported. It was observed that the electrochemical response of regular mesoporous organosilica of the MCM-41 type containing bipyridinium units covalently attached vary significantly for as-synthesized material, BP@PMO.

Observations, Electric properties, Electrochemistry

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Enhancing stability and oxidation activity of cytochrome c by immobilization in the nanochannels of mesoporous aluminosilicates

Article Abstract:

Hydrothermally stable and structurally ordered mesoporous and microporous aluminosilicates with different pore sizes are synthesized to immobilize cytochrome c (cyt c), MAS-9, MCM-48-S, MCM-41-S and Y zeolites. Possible mechanisms for mesoporous silica (MPS)-cyt c catalytic oxidation of hyperoxides and polycyclic aromatic hydrocarbons (PAHs) are proposed based on the spectroscopic characterizations of the systems.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Aluminum Silicate, Superoxide, Superoxides, Cytochrome c, Aluminum silicates

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(VO)(super 2+) ions immobilized on functionalized surface of mesoporous silica and their activity toward the hydroxylation of benzene

Article Abstract:

The amino groups of the mesoporous MCM-41 solids are used to immobilize (VO)(super 2+) ions for studying the catalytic oxidation of benzene. It was found that the vanadium peroxo complex of V(super 5+)-O-O(super .) radicals play an important role in the hydroxylation of aromatic hydrocarbons, such as from benzene to phenol.

Analysis, Chemical reactions

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