The electro-oxidation of hydrazine to form dinitrogen is reported over a wide range both pH and unbuffered conditions at glassy carbon electrodes. It shown that molecules are only electro-active in their unprotonated form, N2H4, whereas the protonated species N2H5+ electro-inactive. oxidation N2H4 releases four protons per molecule which diffusing away from electrode rapidly (on voltammetric ti...

recently, a variety of soils contaminated with heavy metals e.g. cr (vi), have been found in industrial sites. such soil contamination is widely distributed in the world and has now become a serious issue for environment. hexavalent chromium, cr (vi), which is known to be carcinogenic and mutagenic to living organisms, has been utilized for leather tanning, electroplating and in other industrie...

© 2014 Materials Research Society MRS BULLETIN • VOLUME 39 • FEBRUARY 2014 • www.mrs.org/bulletin Introduction The development of (electro)catalytic materials has traditionally relied on the design of new compositions and structures. In principle, previously unseen and desirable properties can be obtained by perturbing the structure of existing materials with elastic strain. Uncovering the fund...

The electrochemical advanced oxidation method “Electro-Fenton” has been applied to remove 17β-estradiol (17β) estra-1,3,5(10)-triéne-3,17-diol) in aqueous-acetonitrile mixture. This endocrine disrupting is a steroid hormone, releases from humans, animals and residual pharmaceuticals into the environmental water and usually causes suspected undesirable effects in aquatic organisms. The degradati...

Lead is a major cause of environmental concern for the industries like paint, pesticides, battery, mine, smelting etc. Lead can cause diseases related to kidney, liver, brain and nervous system. Various methods used for lead removal include electro-coagulation, ion exchange, membrane separation and suspended and attached growth biological techniques. In case of electro-coagulation, factors like...

Carbon nanotubes (CNTs) have been investigated in recent years as a catalyst support for proton exchange membrane fuel cells. Improved catalyst activities were observed and attributed to metal-support interactions. We report a study on the kinetics of methanol electro-oxidation on CNT supported Pt-Ru alloy nanoparticles. Alloy catalysts with different compositions, Pt53Ru47/CNT, Pt69Ru31/CNT an...

Abstract In the FFC-Cambridge process, cathodic dissociation of oxide and CO/CO 2 production on carbon anode is basis for metal in a CaCl bath. Using an inert intermetallic anode, CO evolution can be eliminated altogether with acceleration electro-reduction kinetics. presence TiO suffers from slow reduction kinetics to Ti metal, which enhanced significantly by incorporation alkali species pelle...

Electro-conductive hydrogels based on poly(vinyl alcohol), crosslinked with diethyl acetamidomalonate as the hydrogel component, were engineered using polyaniline as the inherently conductive component, and fabricated in the form of cylindrical devices to confer electro-actuable release of the model drug indomethacin. The hydrogels were characterized for their physicochemical and physicomechani...