The electrocatalytic reactivity of Pt nanoparticles supported on high-pressure-high-temperature diamond particles towards adsorbed CO, methanol and formic acid oxidation is investigated employing differential electrochemical mass spectrometry (DEMS). Surface treatment of diamond particles, employed as dimensionally stable electrocatalyst supports, leads to materials with surfaces featuring main...

The catalytic activities of an equal amount of 3 different carbon supported catalysts containing 10% Pt, 20% Pt + 10% Ru, and 30% Pt were evaluated in neutral and basic media for methanol oxidation by cyclic voltammetry. The prominent oxidation peak for methanol appeared in the forward anodic sweep at around 1.0 V in neutral medium, while in basic medium it appeared at significantly lower poten...

The oxygen-dependent photooxidation of NADPH in the presence of hematoporphyrin in D2O results in the production of enzymatically active NADP+. The reaction is not inhibited by benzoate, mannitol, superoxide dismutase, or catalase. Moreover, addition of either potassium superoxide or H2O2 does not potentiate the reaction. This suggests OH-, H2O2, and O-2 are not likely to be the reactive oxygen...

The efficient synthesis of two new stereoisomeric 3-aminocyclooctanetriols and their halocyclitol derivatives starting from cis,cis -1,3-cyclooctadiene are reported. Reduction cyclooctene endoperoxide, obtained by photooxygenation -1,3-cyclooctadiene, with zinc yielded a diol followed acetylation the hydroxy group, which gave dioldiacetate OsO 4 /NMO oxidation. cyclooctane prepared was converte...

The study of new energy carriers for sustainable energy conversion processes is a hot research area. Among the potential energy carriers one finds biogas, containing a large fraction of methane, which attracts high interests worldwide. However, to be more useful, e.g., concerning storage and transportation, conversion of gaseous methane fuel into liquid fuel like methanol is desired. The conven...

We investigated the decomposition and (partial) oxidation of methanol on Pd based catalysts in an integrated attempt, simultaneously bridging both the pressure and the materials gap. Combined studies were performed on well-defined Pd model catalysts based on ordered Al(2)O(3) and Fe(3)O(4) thin films, on well-defined particles supported on powders and on Pd single crystals. The interaction of P...

Article can be accessed online on: www.ijpsr.com ABSTRACT: Plants rich in antioxidants and phytochemicals especially phenolic groups play a protective role in health and disease conditions, like cancer, diabetes, heart disease hypertension etc. by counteracting reactive oxygen species and inhibiting the lipid oxidation. Morus indica is non-toxic natural therapeutic plant used as herbal medicine...

Pt-Ru nanoparticles supported on carbon nanofibers (CNF) were synthesized by the sodium borohydride reduction method, using different generation dendrimers (zero, one, two and three generations). After the synthesis process, these materials were submitted to a heat treatment at 350 ◦C, in order to clean the nanoparticle surface of organic residues. TEM characterization showed that the Pt-Ru nan...

Methane is an abundant material found world-wide, particularly in form of natural gas. The ability to directly convert methane to methanol in economically satisfactory yields is an important goal of the oil and gas industry. Current technologies or catalytic systems for a direct utilization suffer from low selectivities owing to overoxidation to carbon dioxide. These systems typically involve h...

We have successfully produced bimetallic PtNi alloy nanoparticles on poly (diallyldimethylammonium chloride) (PDDA)-modified graphene nanosheets (PtNi/PDDA-G) by the “one-pot” hydrothermal method. The size of PtNi alloy nanoparticles is approximately 2–5 nm. The PDDA-modified graphene nanosheets (PDDA-G) provides an anchored site for metal precursors; hence, the PtNi nanoparticles could be easi...