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Archive for the ‘sustainability’ category: Page 442

May 22, 2020

Membrane nanopore transport gets picky

Posted by in categories: nanotechnology, sustainability

Trying to determine how negatively charged ions squeeze through a carbon nanotube 20,000 times smaller than a human hair is no easy feat.

Not only did Lawrence Livermore National Laboratory (LLNL) scientists do that but they found that those ions are unexpectedly picky depending on the (a negatively charged ion). The research appears in ACS Nano.

Inner pores of carbon nanotubes combine extremely fast water transport and ion selectivity that could potentially be useful for high-performance water desalination and separation applications. Determining which anions are permeable to the nanotube pore can be critical to many separation processes, including desalination, which turns seawater into fresh water by removing the salt ions.

May 21, 2020

Mazda starts production of MX-30, its first pure EV

Posted by in categories: sustainability, transportation

Mazda yesterday began production of the all-new, all-electric Mazda MX-30 at its Ujina plant No. 1 in Hiroshima, Japan. The company is keeping its first pure EV moving forward to answer the demand for electric vehicles in Europe where stricter CO2 reductions are in place.

May 21, 2020

Implantable biosensor that operates without batteries

Posted by in categories: nanotechnology, neuroscience, sustainability

Researchers from the University of Surrey have revealed their new biodegradable motion sensor—paving the way for implanted nanotechnology that could help future sports professionals better monitor their movements to aid rapid improvements, or help caregivers remotely monitor people living with dementia.

May 21, 2020

Transparent Solar Panels: Reforming Future Energy Supply

Posted by in categories: solar power, sustainability

Transparent solar panels are regarded as the “wave of the future” for new solar technologies. Ubiquitous Energy and Physee are 2 pioneers.

May 21, 2020

Solar Technology Breakthrough: World Record Quantum Dot Solar Cell Efficiency

Posted by in categories: nanotechnology, quantum physics, solar power, sustainability

The development of next-generation solar power technology that has potential to be used as a flexible ‘skin’ over hard surfaces has moved a step closer, thanks to a significant breakthrough at The University of Queensland.

UQ researchers set a world record for the conversion of solar energy to electricity via the use of tiny nanoparticles called ‘quantum dots’, which pass electrons between one another and generate electrical current when exposed to solar energy in a solar cell device.

Continue reading “Solar Technology Breakthrough: World Record Quantum Dot Solar Cell Efficiency” »

May 21, 2020

Next-generation perovskite solar cells pass strict international tests

Posted by in categories: solar power, sustainability

Australian scientists have for the first time produced a new generation of experimental solar energy cells that pass strict International Electrotechnical Commission testing standards for heat and humidity.

The research findings, an important step towards commercial viability of perovskite solar , are published today in the journal Science.

Solar systems are now widespread in both industry and domestic housing. Most current systems rely on silicon to convert sunlight into useful energy.

May 19, 2020

EGEB: GM to power Tennessee plant entirely with solar

Posted by in categories: government, solar power, sustainability

GM will power its largest site, which is in Tennessee, with solar energy from the TVA; The Mexican government rolls back renewables growth.

May 19, 2020

Flodesign’s Jet Engine-Inspired Wind Turbine Could Revolutionize Wind Power Technology

Posted by in categories: energy, sustainability, transportation

https://youtube.com/watch?v=WB5CawKfE2M

We read about different innovations in clean technology almost on a daily basis. A small Massachusetts-based start-up, FloDesign Wind Turbine, has created a wind turbine design based on jet engine technology. This revolutionary wind turbine can generate much more electricity at half the cost than today’s traditional wind turbines. It has also won two clean-energy competitions for its amazing innovation.

A traditional wind turbine can extract just 50% of the available wind energy in the given area it occupies. However, the Wind Jet by FloDesign uses blades covered in shrouds to direct the air through the turbine blades. This results in increased flow of air. As the airflow through the blades increases, the higher the speed of the turbines and ultimately the more power that is generated. The energy generated by this new wind turbine matches that of a traditional turbine with blades that are half the size.

Continue reading “Flodesign’s Jet Engine-Inspired Wind Turbine Could Revolutionize Wind Power Technology” »

May 18, 2020

Efficient, ‘green’ quantum-dot solar cells exploit defects

Posted by in categories: quantum physics, solar power, sustainability

Novel quantum dot solar cells developed at Los Alamos National Laboratory match the efficiency of existing quantum-dot based devices, but without lead or other toxic elements that most solar cells of this type rely on.

“This quantum-dot approach shows great promise for a new type of toxic-element-free, inexpensive that exhibit remarkable defect tolerance,” said Victor Klimov, a physicist specializing in semiconductor nanocrystals at Los Alamos and lead author of the report featured on the cover of the journal Nature Energy.

Not only did the researchers demonstrate highly efficient devices, they also revealed the mechanism underlying their remarkable defect tolerance. Instead of impeding photovoltaic performance, the defect states in copper indium selenide quantum dots actually assist the photoconversion process.

May 18, 2020

How SpaceX’s Crew Dragon Demo-2 mission will work in 13 steps

Posted by in categories: Elon Musk, space travel, sustainability

Here’s a step-by-step explainer of what will happen during the Demo-2 mission, from prelaunch preparations through the astronauts’ return to Earth.

In photos: SpaceX’s Demo-2 Crew Dragon test flight with astronauts

While NASA astronauts heading to their rockets on the day of a launch have traditionally traveled to their launchpads in a retro-style “Astrovan,” Demo-2 astronauts Doug Hurley (left) and Bob Behnken will be rolling up to their Falcon 9 rocket in shiny Tesla Model X sports cars. This comes as no surprise to SpaceX fans; Elon Musk, the founder of both SpaceX and Tesla, famously launched a cherry-red Tesla Roadster into space on a Falcon Heavy rocket in 2018.