Catalysis – Page 7 – TechConnect Briefs

Photocatalysis of Rhodamine B in water using nanotechnology

Yu Z., Li Z., California State Polytechnic University, Pomona, US

There are several techniques currently used for water organic contaminants removal, including Activated Carbon Adsorption, Chlorination, UV Photolysis, Ozonation, and Ferrate Oxidation. Although these techniques are useful in treating contaminated water, they have limitations in [...]

In-situ DRIFTS Studies on CuNi Catalyst for Ethanol Hydrogen Production

Kumar A., Ashok A., Bhosale R., AlMomani F., Tarlochan F., Qatar University, QA

Ethanol dehydrogenation mechanism was investigated over catalysts containing Cu and Ni metals prepared by solution combustion synthesis. In situ DRIFTS studies were conducted on individual metals (Cu and Ni) as well as on CuNi alloy [...]

Confinement Chemistry in Self-Assembling Polymer-Metal Nanoreactors

McTaggart M., Malardier-Jugroot C., Royal Military College of Canada, CA

We have developed and thoroughly characterized stable polymer-metal nanocomposite reactor systems with hydrophobic inner surfaces 2-3 nm apart. Previous work has shown that energetically unfavourable reactions, namely pyrrole polymerization and metal salt reduction, spontaneously occur [...]

Nanomaterials for Catalysis

Computational study of structural dependence of catalytic properties of Pt-Ru nanoalloy catalysts

Prasai B., Petkov V., Central Michigan University, US

Metal nanoparticles (NPs), composed of single-type metals and multiple-type metals, have attracted a great deal of interest in the research community since such NPs are key components in many useful applications such as catalytic, magnetic [...]

Hydrogen generation by ammonia decomposition using Co supported on Mg/La mixed oxide: Effect of calcination atmosphere of support

Podila S., Driss H., Alhamed Y.A., Al-Zahrani A., Petrov L.A., King Abdulaziz University, SA

Generation of COx free hydrogen by ammonia decomposition (AD) is more attractive from practical and economical perspectives compared to other process. Previous studies showed that Ru supported on multi wall carbon nanotubes (MWCNTs) is the [...]

Catalytic Decomposition of Methanol Effected by Cu-ZnO@C Nanoreactors

Hong C.-I., Peng C.-Y., Wei Y-L, Jou C.-J.G., Sun I.-W., Paul Wang H., National Cheng Kung University, TW

Decomposition of methanol (DM) to CO and H2 can be catalyzed by Cu-ZnO@C core-shell and Cu-ZnO○yC yolk-shell nanoreactors at 473-573 K. It is found that the reactivity of DM catalyzed by the nanoreactors increases with [...]

Evolution of self-assembled Bi2O3/LDHs nanostructures to mixtures of mixed oxides and their photocatalytic efficiency under UV and solar light

Katsumata K-I, Puscasu M., Seftel E., Grosu E.F., Ikeda K., Cool P., Carja G., Technical University Gheorghe Asachi of Iasi, RO

Self-assemblies of nanoparticles of Bi2O3 and the clay matrices of layered double hydroxides (LDHs) were fabricated using the manifestation of the structural memory effect of the LDHs in Bi(NO3)3 aqueous solutions, at room temperature. Nanoparticles [...]

On the behavior of modified TiO2 nanotubes for a photoanode-driven photoelectrochemical reduction of CO2

Palmas S., Università degli studi di Cagliari, IT

Carbon dioxide is one of the main greenhouse gases responsible for global warming. Due to the high costs of its disposal, many efforts have recently been addressed to its reuse: converting CO2 to valuable compounds [...]

Nano-oxyhydride catalysts for hydrogen production from bioethanol at room temperature

Jalowiecki-Duhamel L., CNRS, FR

H2 economy could be clean and sustainable only if it is produced from renewable sources and bioethanol obtained through biomass is a promising renewable source of hydrogen. Well tuning the preparation, formulation and conditions applied, [...]