Papers – Page 272 – TechConnect Briefs

The Synthesis and Characterisation of Photocatalytic Silver/Silver Halide Nanocomposites of Kraft Paper Fibres and Calcium Silicate

Tate E.W., Johnston J.H., Victoria University of Wellington, New Zealand, NZ

Recently it has been shown that hybrid silver/silver halide nanoparticles exhibit interesting photocatalytic properties, and are known plasmonic photocatalysts. Enhanced photostability and photocatalysis are observed in the nanoparticles due to the surface plasmon resonance of [...]

Aulana and NgaPure : Novel Nanogold Coloured and Antimicrobial Nanosilver Woollen Textiles: The Journey of Discovery, the Nanoscience and Pathway to Commercialisation

Johnston J.H., Noble Bond Ltd, NZ

Aulana and NgaPure products innovatively combine the nanoscience of gold and silver with their affinity for sulfur in cystine amino acids of wool fibres in a synergistic way, to nanofunctionalise wool and produce a boutique [...]

Self-assembled Magnetic Silica Nano-rods and Micro-platelets as smart reinforcements for polymer-composites

Furlan M., Lattuada M., University of Fribourg, CH

In this work, we propose a new versatile self-assembly technique to obtain large quantities of silica-based magnetic nano and micro-rods and of magnetic microplatelets, which can be easily oriented by weak magnetic fields. Our process [...]

Mechanical Properties of Reduced Graphene Polymer Composites

Xu P., Panchapakesan B., University of Louisville, US

In this paper, we report load transfer and mechanical properties of chemically derived single layer graphene (SLG) as reinforcements in poly (dimethyl) siloxane (PDMS) composites. Shear mixing reduced graphene sheets in polymers resulted in a [...]

Asphalt bitumen modified with carbon nanotubes

Boyer L., Barrera E.V., Rice University, US

We have introduced carbon nanotubes into asphalt bitumen (paving asphalt with no stone or sand aggregate) to investigate the effect on (1) strength, (2) viscoelasticity, and (3) exposure to microwave radiation.

Challenges and Opportunities in the Scale-up of Cellulose Nanofibril Production

Gardner D.J., University of Maine, US

Technologies to produce cellulose nanofibrils via either mechanical means (CNF) or chemical means (cellulose nanocrystals (CNC)) have improved dramatically over recent years and a limited number of companies and research labs can produce cellulose nanofibrils [...]

Composites with Multi-Walled Carbon Nanotubes

McAndrew T.P., Havel M., Korzhenko A., Delprat P., Arkema Inc., US

Multi-walled carbon nanotubes are of great interest – primarily based upon their electrical and mechanical properties. The main application is in polymer composites – where at low concentrations they provide substantial improvements in electrical and [...]

Ultrasonically-Assisted Preparation and Functionalization of Graphene

Hielscher K., Hielscher Ultrasonics, DE

Since the extraordinary characteristics of graphite and graphene are known, several methods for its preparation have been developed. Beside to chemical production of graphenes from graphene oxide in multi-step processes, for which very strong oxidizing [...]

Pd/WO3-ZrO2 catalysts: synthesis, characterization and catalytic evaluation

Chen L.F., Ramirez Sebastian S.P., Wang J.A., Instituto Politecnico Nacional, MX

The present work aims at searching for new catalysts for n-heptane isomerization. Four WO3-ZrO2 oxides were prepared by varying WO3 content in 5, 10, 15 and 25 wt% using a sol-gel technique. The 1wt% Pd/WO3-ZrO2 [...]

Structural characterization and photocatalytic activity of electrospun TiO2 and Ce-doped TiO2 nanofibers

Sang-urai S., Worayingyong A., Mansiri S., Smith M.F., Seraphin S., Kasetsart University, TH

Mixed phase TiO2 and Ce-doped TiO2 nanofibers with different content (0.5, 2.0, 8.0%) ofcerium ions were prepared by a sol-gel electro-spinning method. Results from SEM showed nobeads on the undoped-TiO2 and Ce-doped TiO2 nanofibers with [...]