Advanced Materials & Manufacturing – Page 299

Production of High Surface Area Oxygen Sensitive Powders by Na Flame Synthesis

Mann L., Cabot Corporation, US

Cabot Corporation is developing a new particle generation platform that is ideally suited for the production of oxygen sensitive nano-scale powders. The Na Flame Synthesis process is based on the hypergolic vapor phase reaction between [...]

Nanoparticle Synthesis & Applications

Rapid Determination of Purity of Carbon Nanotubes

Wall M., Hodkiewicz J., Thermo Fisher Scientific, US

Raman spectroscopy can provide for quick measurements of the carbonaceous purity of carbon nanotube samples. Carbonaceous purity is a critical parameter for many applications of carbon nanotubes. Raman spectroscopy has been reported many times in [...]

Improved Nanoreinforced Composite Material Bonds with Potential Sensing Capabilities

Starikov D., Price A., Glenn T., Attia F., Fischer M., Bokadoum M., Bensaoula A., Integrated Micro Sensors Inc., US

Dramatic increase in the bond strength of composite/adhesive interfaces of nano reinforced composite material joints and structures has been achieved using laser-assisted fabrication of Micro Column Arrays (MCA) on the surface of the two materials [...]

Magnetic Carbon-Nanotube Thermoplastic Polyurethane Composites

Kong I., Spoljaric S., Shanks R.A., RMIT University, AU

The aim was to prepare composites of PU and magnetite-functionalized CNTs, using physical blending techniques in melt and solution. Objectives included functionalizing the CNT with magnetite (Fe3O4), preparing PU-CNT-Fe3O4 composites using solvent dispersion and melt [...]

Visible Photoluminescence Emission from Chemically Synthesized MWCNT/TiO2 Hybrid Nanostructure

Paul R., Kumbhakar P., Mitra A.K., National Institute of Technology, Durgapur, IN

We report here a simple chemical precipitation process to synthesize a heterostructure of multi-walled carbon nanotubes (MWCNTs) and TiO2 (titania) nanoparticles of average size 3.5 nm. The hybrid structure has been characterized by high resolution [...]

Controllable Sequential Low Temperature Plasma Assisted Growth of Vertical Multi-wall & Single-wall CNTs

Kolahdouz Z., Darbari S., Mohajerzadeh S., University of Tehran, IR

By investigating the effects of growth parameters of CNTs, we have arrived at small diameter, single/multi-wall nanotubes at low temperatures. Synthesis of CNTs was performed using the gas mixture of the C2H2/CH4 gas and H2 [...]

Tearing Graphene

Moura M.J.B., Marder M., University of Texas at Austin, US

Experiments on free standing graphene can expose the graphene sheets to out-of-plane forces. An example of that is the back-gate voltage experimental setup. Here we show that out-of-plane forces can cause free standing graphene to [...]

Graphite Layer Nano-composites with Polyurethane Matrix

Czajka M., Shanks R.A., RMIT University, AU

The aim was to prepare expanded graphite oxide (GO, Graftech Inc.) and disperse it in a polyol (poly(oxypropylene glyceride), Dow Chemicals) using ultrasonication. The dispersion was polymerized and crosslinked with methane 4,4’-diphenyldiisocyanate to form a [...]

Fabrication and characterization of thin-film transistors based on printable functionalized single-walled carbon nanotubes

Zhao J., Lin J., Cui Z., Suzhou Institute of Nano-tech and Nano-bionics (SINANO), CAS, CN

In this study, we reported a simple functionalization approach to preparing high-quality SWNT ink. We demonstrated that metallic species and small diameter semiconducting species in CoMoCat 76 could be effectively eliminated after reaction with 2, [...]