catalysis – TechConnect Briefs

Using Nanoparticle Scaffolds to Probe and Enhance the Catalytic Activity of Single and Coupled Enzyme Systems

Hastman D., Chiriboga M., Medintz I., U.S. Naval Research Laboratory, US

The use of nanoparticle (NP) scaffolds for enzymatic systems has proven to be a useful tool for sensing specific enzyme activity as well as enhancing the catalytic rates of these systems. Although, NP-induced enhancement has [...]

Electrocatalytic CO2 Conversion for Seasonal Energy Storage

Weekes D.M., Berlinguette C.P., The University of British Columbia, CA

The grid-scale deployment of clean electricity requires highly efficient energy conversion and storage technologies. The electrocatalytic conversion of waste CO2 represents a compelling energy storage pathway because the carbon-based products can be deployed in major [...]

Reduced molybdenum oxide MoOx as a model catalyst for methanol photosynthesis from carbon dioxide and water

Silaev I.V., Khubezhov S.A., Tvauri I.V., Kaloeva A.G., Kibizov D.D., Ramonova A.G., Grigorkina G.S., Demeev Z.S., Bliev A.P., Sekiba D., Ogura S., Fukutani K., Magkoev T.T., North Ossetian State University, RU

Corresponding author, e-mail: t_magkoev@mail.ru (Tamerlan Magkoev) The work deals with the design of molybdenum oxide MoO2 with a specific density of anionic vacancies for methanol synthesis from carbon dioxide and water. Surface sensitive studies were [...]

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 [...]

Emerging Trends Based on Calix Protected Metal Nanoparticles

Jain V.K., Gujarat University, IN

Nanoparticles are of extreme interest because of the new properties (such as chemical reactivity and optical behavior) they exhibit compared with larger particles. These new properties are again taken to a better level when they [...]

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. [...]

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 [...]

Controlled synthesis of metal@fullerene nanoarchitectures for catalysis

Leng F.Q., Axet M.R., Serp P., Universite de Toulouse UPS-INP-LCC, FR

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 [...]

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 [...]

Development of a Platinum Nanoparticle based Microcombustor Power Device

Bakrania S., Rowan University, US

Microcombustors coupled with thermoelectric devices have the potential to provide a prolonged power source for portable devices as opposed to conventional batteries due to significantly higher energy densities. Recharging then can be easily achieved by [...]