A5057636429- Carbon Nanotubes in Composites
- Graphene research and applications
- Thermal properties of materials
- Heat Transfer and Optimization
- Advancements in Solid Oxide Fuel Cells
- Fuel Cells and Related Materials
- Catalysis and Hydrodesulfurization Studies
- Magnetic and transport properties of perovskites and related materials
- Mechanical and Optical Resonators
- Electrocatalysts for Energy Conversion
- Electronic and Structural Properties of Oxides
Panasonic (Japan)
2014-2017
The University of Tokyo
2010-2013
We investigate the influence of gas pressure on growth horizontally aligned single-walled carbon nanotubes (SWCNTs) R-cut and r-cut crystal quartz substrates by alcohol catalytic chemical vapor deposition (CVD). The density SWCNTs was found to depend highly pressure. A study SWCNT as a function CVD time revealed that continued increase for 10 min at reduced pressure, whereas saturated rapidly higher even though catalysts were not deactivated. argue variation incubation low-pressure is key...
We present a method for measuring the thermal conductivity and contact resistance between film substrate of vertically-aligned single-walled carbon nanotubes (VA-SWNTs) grown on Si by ACCVD (Alcohol Catalytic Chemical Vapor Deposition) method, utilizing temperature dependence Raman spectrum obtained from SWNTs. The utilizes excitation laser system to heat VA-SWNT measure simultaneously. finds be around 1 Wm−1K−1 10−5∼10−6 m2KW−1. is converted into equivalent an individual SWNT, whose value...
Parametric study of high-density and high-alignment CVD growth horizontally aligned single-walled carbon nanotubes (HA-SWNTs) on R-cut crystal quartz was performed. Effects partial pressure source gas, sample position, time substrate chemical etching were studied. Lower pressure, upper stream position longer are reported here to increase the density. It is proposed that bundling SWNTs prevents low supply rate causes ratio grown individually without bundling, which results in highly dense...
An experimentally simple method utilizing the excitation laser of Raman system to heat VA-SWNT film and measure temperature simultaneously for measuring thermal conductivity film-substrate contact resistance vertically-aligned single-walled carbon nanotubes (VA-SWNTs) is applied transferred film. The finds at interface be around four times larger than original grown on Si substrate.
Hydrogen is a potential candidate for energy carrier role with high gravimetric density of 33kWh/kg. However, owing to its low volumetric density, 0.003kWh/l at STP, which very small compared common fuels, it poses logistical barriers in widespread use. Conventional methods hydrogen storage and transportation include compression up pressures near ~80MPa or liquefaction by cooling down temperatures below -253˚C. Another promising method chemically store the form organic hydrides. One such...