Polymeric solutions containing precursors of wide bandgap metal oxide semiconductors were electrospun either directly on a transparent conducting glass substrate or on other sample collectors to prepare their films. These films produced randomly oriented continuous [...]
Theoretical and experimental methods are adopted in order to gain further understanding of photocatalytic water splitting over the semiconductor TiO2. Periodic density functional theory calculations are used to study the adsorption of water on the [...]
A comparative study of nanofluids exchanging heat with a thermal energy reservoir Parise, J.A.R. Pontifícia Universidade Católica do Rio de Janeiro email@example.com For their enhanced thermal conductivity and heat transfer characteristics, considerable attention has been [...]
Nano Crystalline Cellulose (NCC) can be easily extracted from wood. This has been known for several decades (see for modern extraction method the reference 1). It was also demonstrated for decades that letting the dispersion [...]
We will show some of the trends in patenting clean energy applications and indicate where nanotechnology presently plays a role in this.
, Cheng Y.L.
, Dong Z.C.
, Li H.
, Li J.G.
, Qin C.Q.
, Qin H.Z.
, Sun J.
, Wang Z.X.
, Xian C.N.
, Zhang L.G.
, Institute of Chmecial Defense, CN
We introduce a novel material of flowerlike mesoporous CeO2 microspheres with nanointerspace, which was a kind of multifunctional material for both clean and renewable energy technologies. By a controlled calcination procedure ,the obtained CeO2 microspheres [...]
The present research is to develop a porous ceramic membrane as an important part in direct ethanol fuel cell (DEFC) application using silicon carbide material. The objective of this research is to optimize the core [...]
Si-nano-crystal (Si-nc) layers with luminescent behavior on glass substrate have been prepared using a time multiplexed plasma hydrogenation and reactive ion etching at temperatures below 450oC. Various techniques such as SEM, Photo-luminescent and TEM analyses [...]
For many years, attempts to reduce the cost of polymer electrolyte membrane fuel cells have been halted by the large quantities of platinum required for their operation. This project explores the use of carbon nanotube [...]
Chitosan nanofibers were prepared via electrospinning by varying solution concentration (1, 2, 4 and 6wt %), applied voltage (14, 18 and 22 kV), distance between needle and collector (100 mm and 140 mm), needle diameter [...]
Large quantities of glycerol are available as a reaction coproduct owing to the rapid development of biodiesel production by transesterification of vegetable oils and animal fats. The hydrogenolysis of glycerol to propanediols is one process [...]
In the recent decades, titanium dioxide (TiO2) nano-material was received widely attention because of its good chemical stability, low-toxicity, self-cleaning, anti-bacteria and deodorant. However, its photocatalytic activity was limited only by ultraviolte (UV) light irradiation [...]
Different concentration of TiO2 sols (10-40% g/l) synthesized by titanium tetra isopropoxide (TTIP). PET fabric dipped in prepared sols and sol-gel process accomplished at low temperature. Particle size of synthesised Nano TiO2 determined by particle [...]
We report on surface modification with hyperthermal hydrogen induced cross-linking (HHIC) technology on uniform and well-ordered octadecylphosphonic acid (OPA) Langmuir-Blodgett (LB) films on several surfaces, and on surface characterizations of its properties. The hyperthermal hydrogen [...]
Many new technologies offer significant improvements in environmental performance over existing approaches. Typically, there is some uncertainty about the health or environmental impacts, positive or negative, of new technologies, which can adversely affect their introduction [...]
As the crystallization kinetics is enhanced by the introduction of the microwave hydrothermal method, the arm of this work was to produce and characterize boehmite by microwave-assisted hydrothermal. Boehmite nanostructure were synthesized by a hydrothermal [...]
Atomic Layer Deposition (ALD) offers a superior way to coat highly conformal, uniform, pinhole and defect free thin films on even the most challenging nanoscale architectures. The technique is already widely in use in e.g. [...]
Single silica capped and uncapped gold nanoparticles are imaged using apertureless near-field optical microscopy (ANSOM) in the visible (λ=632 nm) and infrared frequencies (λ=10.7 µm). Identification of capped and uncapped particles with nanoscale spatial resolution [...]
Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites
Published: June 13, 2011
Industry sectors: Advanced Materials & Manufacturing | Energy & Sustainability
Topics: Sustainable Materials