Low‐Temperature H ₂ Reduction of Copper Oxide Subnanoparticles

Efficient reduction of graphene oxide catalyzed by copper.

We report that copper thin films deposited on top of graphene oxide (GO) serve as an effective catalyst to reduce GO sheets in a diluted hydrogen environment at high temperature. The reduced GO (rGO) sheets exhibit higher effective field-effect hole mobility, up to 80 cm(2) V(-1) s(-1), and lower sheet resistance (13 kΩ □(-1)) compared with those reduced by reported methods such as hydrazine an...

Reduction characteristics of copper oxide in cerium and zirconium oxide systems

The reduction of CuO dispersed on ̄uorite-type oxide catalysts, namely La-doped CeO2 and Y-doped ZrO2 was studied in this work. On both supports distinct copper species were identi®ed as a function of copper content by temperatureprogrammed reduction (TPR) by H2 and CH4, X-ray photoelectron spectroscopy (XPS), X-ray powder diffraction (XRD) and scanning transmission electron microscopy/energy d...

A Theoretical Study of Nitric Oxide Reduction in Heme-Copper Oxidase and Nitric Oxide Reductase

Ultrasonic Fabrication of Monodispersed Nano-Copper Oxide

A green environmental friendly process for preparing monodispersed cuprous oxide nanoparticles is reported. In this process, cuprous oxide is prepared using Cu(OH)42- as precursor and glucose as reducing agency in the presence of dispersant under ultrasonic radiation. Spherical, welldispersed Cu2O nanoparticles were obtained with the average size of 200 nm or 1.5 μm, respectively, with or witho...

Biological Synthesis of Copper/copper Oxide Nanoparticles

Metal nanoparticles have gained significant interest in the past decade because of their unique physio-chemical properties which has a potential to be used in a wide range of applications. Recent efforts have gained success in synthesising nanoparticles with excellent shape and size control; however they are largely restricted to chemical methods. There is an increasing focus on eco-friendly ‘g...