Papers – Page 139 – TechConnect Briefs

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, [...]

Scalable Production of Stabilized Catalysts via Atomic Layer Deposition

Goulas A., Dokania A., Grillo F., van Limpt B., van Ommen R., van Limpt B., van Ommen R., Delft IMP, NL

We report the use of several nanostructuring concepts using Atomic Layer Deposition (ALD) that coupled with porosity induction via heat treatment resulted to controllably accessible model catalysts. This enables more active, selective and stable catalysts. [...]

Carbonaceous Materials Supported-Pd Catalysts for the Enantioselective Hydrogenation of (E)-alpha-Phenylcinnamic acid: The Influence of Support Acidity

Bui Trung T.S., Kim S., Kim Y., Kang S., Lee H., Kim S., Kim Y., Korea Advanced Institute of Science and Technology (KAIST), KR

We performed a systematically comparative study of carbonaceous materials as catalyst supports for the asymmetric heterogeneous hydrogenation of (E)-alpha-phenylcinnamic acid to study the influence of the supports on the reaction enantioselectivity. We prepared Pd-based catalysts [...]

Cavitation Disintegration of Microparticles and Nanoparticles in Dense Liquid Dispersions

Dvorsky R., Svoboda L., Trojková J., Bednář J., Mančík P., Kostura B., Vysoká škola báňská – Technická univerzita Ostrava, CZ

With the current rapid development of nanotechnology, top-down preparation of nanoparticles by various disintegration techniques became an important industrial sector. In addition to the presently common high speed bead mills working with particles in liquid [...]

Cellulose Fiber Immobilized Silver Nanoparticles and Their Applications in Catalysis, SERS and Antimicrobial Activity

Baruah B., Kennesaw State University, US

This work involves in-situ preparation of silver nanoparticles on nonwoven fibers in baby wipes (a mixture of synthetic fiber and cellulose fiber) by impregnating Ag+ ions. The Ag+ ions in the micronanopores of the fibers [...]