NDLI: Ethylenediamine-modified oriented MCM-41 at the electrode surface, cobalt adsorption ability and electrochemical performance

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Rafiee, Mohammad Vali, Hojatollah Arshi, Simin Karimi, Babak
Description	Author Affiliation: Rafiee M ( Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Gava-Zang, Zanjan 4513766731, Iran. rafiee@iasbs.ac.ir karimi@iasbs.ac.ir.)
Abstract	Mesoporous silica thin films (MCM-41) functionalized with ethylenediamine groups were electrochemically fabricated on electrode surfaces. These ligand functionalized film were a promising matrix for the immobilization of cobalt ions and preparation of cobalt complexes covalently bound to the MCM-41 support. The constructed MCM-41 were characterized by TEM, EDS and TGA analysis. This method yields uniform thin films with hexagonal mesochannels aligned and accessible to electrode surface. Well-defined electrode responses were, therefore, observed for the anchored complexes which made the electrochemical analysis of the structure possible as well. Voltammetric studies revealed the reactivity of the covalently bound complexes differed significantly from the dissolved ones. The anchored complexes preferred to be in their oxidized form which inhibits formation of oxygen adducts. The covalently bound complexes had relatively good leaching stability with good catalytic performance towards hydrogen peroxide reduction.
ISSN	14779226
Issue Number	12
Volume Number	43
e-ISSN	13645447
Journal	Dalton Trans.
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2014-03-28
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Cobalt Chemistry Ethylenediamines Silicon Dioxide Adsorption Electrochemistry Electrodes Journal Article Research Support, Non-U.S. Gov't
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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