Reduction and Oxidation of Cu Species in Cu-Faujasites Studied by IR Spectroscopy

Preparation of Cu@Cu₂O Nanocatalysts by Reduction of HKUST-1 for Oxidation Reaction of Catechol.

HKUST-1, a copper-based metal organic framework (MOF), has been investigated as a catalyst in various reactions. However, the HKUST-1 shows low catalytic activity in the oxidation of catechol. Therefore, we synthesized Fe₃O₄@HKUST-1 by layer-by layer assembly strategy and Cu@Cu₂O by reduction of HKUST-1 for enhancement of catalytic activity. Cu@Cu₂O nanoparticles exhibited highly effective cata...

Fre1p Cu Reduction and Fet3p Cu Oxidation Modulate Copper Toxicity in Saccharomyces cerevisiae*

Fre1p is a metalloreductase in the yeast plasma membrane that is essential to uptake of environmental Cu and Fe . Fet3p is a multicopper oxidase in this membrane essential for high affinity iron uptake. In the uptake of Fe , Fre1p produces Fe that is a substrate for Fet3p; the Fe produced by Fet3p is a ligand for the iron permease, Ftr1p. Deletion of FET3 leads to iron deficiency; this deletion...

STUDY OF PROPANE OXIDATION ON Cu-ZEOLITE CATALYSTS BY IN- SITU EPR AND IR SPECTROSCOPIES

Oxidation resistance of graphene-coated Cu and Cu/Ni alloy.

The ability to protect refined metals from reactive environments is vital to many industrial and academic applications. Current solutions, however, typically introduce several negative effects, including increased thickness and changes in the metal physical properties. In this paper, we demonstrate for the first time the ability of graphene films grown by chemical vapor deposition to protect th...

Thermo-Oxidation and Biodegradation Study of Low-Density Polyethylene /Starch Films by IR Spectroscopy

This article reports a study of the thermo-oxidation and biodegradation in the soil of low-density polyethylene/starch films (LDPE/starch) by infrared spectroscopy: Films of LDPE/Starch blends of different composition (starch content range from 0 to 15% w/w),were prepared and exposed to thermo-oxidation at different temperatures at 80, 90 and 100°C,and buried in the soil of public dump duri...