Energy and Environment

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Researchers develop highly stable perovskite solar cells

A recent study has presented a highly stable perovskite solar cells, using edged-selectively fluorine functionalized graphene nano-platelets. This breakthrough has gotten much attention [...]
In the field of energy, nanotechnology is being used to reduce the cost of catalysts used in fuel cells to produce hydrogen ions from fuel such as methanol and to improve the efficiency of membranes used in fuel cells to separate hydrogen ions from other gases such as oxygen.
Nanoparticles are also useful in the manufacture of solar cells by reducing manufacturing costs (need lower process temperature instead the high temperature vacuum deposition) and installation costs by producing flexible rolls (instead crystalline panels).
Regarding batteries, nanotechnology could offer some advantages: to reduce the possibility of catching fire by providing less flammable electrode material, to increase the available power and decreasing the required recharge  time by coating the surface of an electrode with nanoparticles, and to increase the shelf life using nanomaterials to separate liquids in the battery from solid electrodes.
Moreover, the shortage of fossil fuels such as diesel and gasoline can be addressed by making the production of fuels from low grade raw materials cheaper, increasing the mileage of engines, and making the production of fuels from normal raw materials more efficient.
It is also possible to increase the electricity generated by windmills using epoxy containing carbon nanotubes. The resulting blades are stronger and of lower weight, and therefore the amount of electricity generated by each windmill is greater.
Nanotechnology also has the potential to revolutionize the agri-food industry with novel tools for molecular management and rapid disease detection, improving plants' ability to absorb nutrients, controlling insects with the use of bio-pesticides, and monitoring conditions environmental conditions of the plant. Researchers are working in the use, for instance, of microsensors made from silica and carbon to monitor the presence of pathogens.
Another well-known use of nanotechnology is wastewater treatment. One challenge is the removal of industrial water pollution. Nanoparticles can be used to convert the contaminating chemical in underground ponds through a chemical reaction to make it harmless. Another challenge is the removal of salt or metals from water by a deionization method using electrodes composed of nano-sized fibers, or improve the filtration of virus cells using nanostructured catalytic membranes. Therefore, due to their unique activity toward recalcitrant contaminants and application flexibility, nanomaterials offer the potential for treatment of surface water, groundwater and wastewater contaminated by toxic metal ions, organic and inorganic solutes, and microorganisms.
Nanostructured membranes are also used from industrial plant exhaust streams to improve air quality, and catalysts serve to reduce air pollution. For instance, researchers have demonstrated a catalyst, in which gold nanoparticles have been embedded, that breaks down VOCs at room temperature.

 

Application Product or article Improved properties Nanomaterials
Energy Catalyst
Scrubbers and membranes to separate CO2 form power plant exhaust
Wires
Nanostructured solar cells
Windmill
Thin-film solar electric panels
Flexible piezoelectric nanowires woven into clothing
High-power rechargeable battery systems
Semiconductors thin films
Batteries

Nuclear reactors

Higher durability
Higher resistance
Reduced weight
Higher efficiency of fuel production
Barrier properties
Higher thermal resistance
Electromagnetic interference
Higher electrical conductivity
Power conversion efficiency
Reduced fuel consumption
Higher efficiency combustion
Reduced transmission power loss
Higher efficiency of lighting systems
Lower costs
Less flammability
Carbon nanotubes
Graphene
Nanoplatinum
Quantum dots
Gold nanowires
Environment Controlled release nanocapsules
Bioactive nanoparticles
Nanosorbents
Nanocatalysts
Nanostructured catalytic membranes
Waste water treatment filters
Sensors for chemical vapours
Better release of  of pesticides, fertilizers and other agrochemicals
Genetic modification
Regulation of plant metabolism
Better crop production
Effective filtration
Sensing properties
Nanosilica
Carbon
Palladium pellets
Gold pellets
Graphene oxide
Graphene
Carbon nanotubes
Zinc oxide nanowires

That’s being said on nano & energy & environment


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  • Surface polarons...

    ...nanowires by two-step chemical vapor deposition and investigated systematically the doping concentration, temperature, excitation power, excitation wavelength dependent Raman, photoluminescence and carrier lifetime decay. Scanning electron microscopy, energy dispersive x-ray spectrometry and x-ray diffraction confirmed Te-doping in the as-prepared samples. The strong surface optical (SO) phonon mode is observed in the micro-Raman spectra of an individual Te–CdS nanowire... […]

  • Bile acids sneak...

    ...nanoparticles into the bloodstream Researchers fed rats nanoparticles coated in bile acids in a step toward to making more drugs orally available Advertisement Coating a drug delivery nanoparticle in glycocholic acid, a bile acid, makes the body treat the particle like food, targeting it to the bloodstream. The approach may be useful for turning injectable medications into oral medications. Bile has a bad rap and often connotes an ill temper. But it plays a critical role in digestion […]

  • Global Biomedical...

    ...nanotechnology market applications, types, and price analysis. Similarly, it includes biomedical nanotechnology company profiles and supply chain analysis along with biomedical nanotechnology market share. It describes customers/distributors together with biomedical nanotechnology globalization & trade. For Any Query, Enquire here: https://market.biz/report/global-biomedical-nanotechnology-market-sp/113906/#requestforsample Global Biomedical Nanotechnology Market Analysis Rely On […]

  • Graphene helps...

    ...Graphene helps protect photocathodes for physics experiments (Nanowerk News) Transforming light into electricity is no mean feat. Some devices, like solar cells, use a closed circuit to generate an electric current from incoming light. But another class of materials, called photocathodes, generate large quantities of free electrons that can be used for state-of-the-art science. Photocathodes have one significant limitation, which is that they degrade when exposed to air. To prevent this, […]

  • Graphene growth...

    ...graphene films on catalytic copper substrates. In order to obtain sufficiently high growth rates at reduced growth temperatures an efficient dissociation of the precursor molecules already in the gas phase is required. We used plasma enhanced chemical vapor deposition (PECVD) to fabricate high quality graphene films at various temperatures. The efficient, plasma-induced dissociation of the precursor molecules results in an activation energy... […]

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