Papers:
Ni-supported Pd nanoparticles: a new catalyst for low-temperature ammonia cracking
Polanski J., Bartczak P., Sitko R., Siudyga T., Mianowski A., Szade J., Lelatko J., University of Silesia, PL
Ammonia cracking is a method used in the treatment of flue gases from coal or biomass gasification or for hydrogen generation in chemical or related industries. It is an important issue in hydrogen economies. As [...]
Bimetallic Nanoparticles for Advanced Energy Conversion Technologies
Proton exchange membrane fuel cells (PEMFC) are highly regarded as a clean alternative energy technology for motor vehicles, power generators, etc. One factor hindering their commercial viability is the poisoning of the hydrogen oxidation reaction [...]
Biomimetic Nanoreactors via in situ Synthesis of Atomically-Thin Gold Sheets and Platinum Nanoclusters
McTaggart M., Malardier-Jugroot C., Jugroot M., Malardier-Jugroot C., Royal Military College of Canada, CA
We present the synthesis and activity of broadly stable polymer-metal nanoreactors capable of confinement-enhanced catalysis. Poly(styrene-alt-maleic acid), SMA, is known to self-assemble in water into highly organized supramolecular nanostructures containing confined polar and non-polar reaction [...]
Colloidal Palladium Nanoparticles versus Commercial Palladium Catalysts for Suzuki Cross Coupling Reactions – The Influence of Surface Functionalization
The Suzuki-Miyaura reaction is a highly utilised reaction for aryl-aryl bond formation in organic synthesis due it is versatility. The motivation for the application of heterogeneous catalysts in these systems is the easy recovery and [...]
Optimization of Catalyst Nano-structures through Alloying and De-alloying Process—Research on Ag-Co catalyst for Catalytic Oxygen Reduction in Alkaline Media
Optimization of particle size and particle’s nano-structure at the atomic level can precisely and effectively tune catalytic properties of materials, and enabling enhancement in both catalytic activity and stability. We synthesized a highly active and [...]
Green Fenton-like catalysts for the removal of water pollutants
Nadejde C., Neamtu M., Hodoroaba V.-D., Schneider R.J., Paul A., Ababei G., Panne U., Alexandru Ioan Cuza University, RO
Three tannic acid (TA) and dissolved natural organic matter (NOM) core-shell magnetite nanoparticles catalysts were evaluated as magnetic heterogeneous catalysts. Simple and efficient procedures for the preparation of coated magnetic nanoparticles were employed. The catalysts [...]
Controlled synthesis of metal@fullerene nanoarchitectures for catalysis
Nanomaterials and nanostructures play a very important role for applications of nanoscience and nanotechnology in the field of fabrication, such as information and techniques, energy sources, environments, health and medical treatments. It is extremely challenging [...]
Tailoring Particle Behavior for Phase Transfer Catalysis: Recent Developments by the Center for Interfacial Reaction Engineering
Aichele C.P., Weston J., Venkataramani D., Briggs N., Crossley S., Harwell J., White J., Resasco D., Oklahoma State University, US
This presentation highlights recent advances by the Center for Interfacial Reaction Engineering (CIRE) in designing and tailoring catalytic particles for use in phase-transfer catalysis. CIRE consists of researchers across several disciplines including nanotechnology, thermodynamics, interfacial [...]
Low Temperature Plasma Surface Treatment of Catalytic Material
We are developing a low temperature plasma treatment to modify the surfaces of various heterogeneous catalytic materials. The plasma modification has been shown to radically change the surface morphology of various catalytic materials including nickel, [...]
Effect of Big-Cube Zr2Ni on the Absorption and Desorption Kinetics of Nanocrystalline MgH2 Powders
El-Eskandarany M.S., Al-Matrouk H., Al-Duweesh A., Shaban Ehab, Kuwait Institute for Scientific Research, KISR, KW
A new hydrogen storage system of nanocomposite MgH2/10 wt.% big-cube Zr2Ni nanocrystalline powders were synthesized. A -MgH2 phase coexisted with small mole fractions of -MgH2 nanocrystalline ultrafine powders were obtained after reactive ball milling (RBM) [...]
Cellulose Fiber Immobilized Silver Nanoparticles and Their Applications in Catalysis, SERS and Antimicrobial Activity
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 [...]
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 [...]
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 [...]
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. [...]
Nano-oxyhydride catalysts for hydrogen production from bioethanol at room temperature
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, [...]
On the behavior of modified TiO2 nanotubes for a photoanode-driven photoelectrochemical reduction of CO2
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 [...]
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 [...]
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 [...]
Hydrogen generation by ammonia decomposition using Co supported on Mg/La mixed oxide: Effect of calcination atmosphere of support
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 [...]
Computational study of structural dependence of catalytic properties of Pt-Ru nanoalloy catalysts
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 [...]
Journal: TechConnect Briefs
Volume: 2, Materials for Energy, Efficiency and Sustainability: TechConnect Briefs 2015
Published: June 14, 2015
Industry sector: Advanced Materials & Manufacturing
Topic: Catalysis
ISBN: 978-1-4987-4728-8