Catalysis – Page 15 – TechConnect Briefs

Extraordinary Activity of Nanodispersed Bimetallic NiFe Phosphide Catalysts for the Conversion of a Biomass Model Compound

Oyama S.T., Cho A., Shin J., Takagaki A., Kikuchi R., The University of Tokyo, JP

The present work deals with the development of new catalysts, transition metal phosphides, which have outstanding activity for hydrodeoxygenation of pyrolysis oil. The study is significant as it leads to the production of high-energy content [...]

Synthesis and characterization of magnetic manganese ferrites using a simple combustion method and its application in removal of organics

Desai I., Mills M., Nadagouda M., Elovitz M., Boulanger B., U.S. Environmental Protection Agency, US

Ferrospinels have been shown to have promising oxidative and catalytic properties. Our research focuses on novel magnetic manganese ferrite catalysts which have been developed and thoroughly characterized. Their potential application as oxidative catalysts/sorption in removal [...]

Magnetically Recyclable Nanocatalysts: Eco-friendly Solutions for Green Catalysis

Pereira C., Rocha M., Fernandes C., Rebelo S.L.H., Freire C., Porto University, PT

In the last decades, the global concern for environment protection boosted the development of cost-effective eco-friendly catalytic processes. Magnetic nanoparticles emerged as a new generation of catalysts or catalyst supports owing to their nanosize, easy [...]

Nano-Organocatalysts: new magnetically retrievable tools for enantioselective synthesis

Nehlig E., Motte L., Guénin E., Université Paris, FR

We report the elaboration of new organocatalyst functionalized superparamagnetic iron oxide nanoparticles that can act as a new enantioselective organocatalyst. Differents organocatalysts are grafted using two different methodologies on a nanoplateform constituted of 10 nm [...]

Nanomaterials for Catalysis

Fundamental background of improving the design and performance of Au/TiO2 supported catalyst

Tvauri I.V., Tsidaeva N.I., Turiev A.M., Khubezhov S.A., Fukutani K., Christmann K., Magkoev T.T., University of North Ossetia, RU

Studies of metal oxide catalysts have widely increased in recent years due to the important role that these materials play in industrial catalytic processes for the conversion of hydrocarbons, the control of environmental pollution and [...]

Chemical Fluid Deposition of Ru/MCM-41 as Catalyst for Hydrogenation in Green Environments

Lin H.W., Yen C.H., Tan C.S., National Tsing Hua University, TW

The Ru/MCM-41 catalyst prepared by chemical fluid deposition technique exhibited high catalytic activity for hydrogenation of p-xylene, bisphenol A, bisphenol F and benzoic acid, which was higher than that of a conventionally prepared Ru/MCM-41 catalyst. [...]

Novel Catalysis of Dendrimer: Efficient Nanocavity of Polyamine Dendrimer for Intramolecular Michael Reaction

Maeno Z., Mitsudome T., Mizugaki T., Jitsukawa K., Kaneda K., Osaka University, JP

The intramolecular Michael reaction of (E)-9-nitro-3-nonen-2-one was investigated using poly(propylene imine) dendrimers with alkyl chain on the periphery (Gx-C16, x = 3-5, x denotes the number of the generation). Gx-C16 showed higher catalytic activity than [...]

Fabrication of Nanoporous Metals by Dealloying of Ternary Alloys: Evaluation of their Electrocatalytic Properties

Vega A., Newman R.C., University of Toronto, CA

Novel nanoporous metals from ternary precursors (i.e., AgAu(Pt) alloys with a platinum content of 1, 2 and 4 at.%) have been developed by electrochemical dealloying. These structures represent a class of functional materials with intriguing [...]

Template – assisted sol – gel approach to synthesize new perspective alumina based catalysts

Vinogradov A.V., Vinogradov V.V., Vinogradov A.V., Vinogradov V.V., Agafonov A.V., Institute of Solution Chemistry of Russian Academy of Sciences, RU

In this work, high stable mesoporous γ-aluminas with different pore structure were synthesized. New kinds of templates were adapted to prepare alumina based catalysts with uniform and bimodal mesopore distribution with ‘small’ and ‘large’ mesopores. [...]