Data-centric applications benefit from dense, low-power memory. Here the authors use a combination of chalcogenide superlattices and nanocomposites to achieve low switching voltage (0.7 V) and fast speed (40 ns) in 40-nm-scale phase-change memory.
Category: energy – Page 92
NEW Emails EXPOSE Fauci’s Lab Leak Disinformation Campaign, Report: Michael Shellenberger
Twitter files author Michael Shellenberger weighs in on recent leaked NIH emails. #Fauci #covidorigins.
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The Green Spark: A Catalyst Transforming Water Into Energy Wealth
A stable, reactive, and cost-effective ruthenium catalyst for sustainable hydrogen production through proton exchange membrane water electrolysis.
Sustainable electrolysis for green hydrogen production is challenging, primarily due to the absence of efficient, low-cost, and stable catalysts for the oxygen evolution reaction in acidic solutions. A team of researchers has now developed a ruthenium catalyst by doping it with zinc, resulting in enhanced stability and reactivity compared to its commercial version. The proposed strategy can revolutionize hydrogen production by paving the way for next generation electrocatalysts that contribute to clean energy technologies.
Electrolysis and Catalyst Challenges.
Accidental Discovery: How a Whiff of an Unusual Chemical Transforms Seedlings Into Super Plants
Researchers have found that treating seeds with ethylene gas increases both their growth and stress tolerance. This discovery, involving enhanced photosynthesis and carbohydrate production in plants, offers a potential breakthrough in improving crop yields and resilience against environmental stressors.
Just like any other organism, plants can get stressed. Usually, it’s conditions like heat and drought that lead to this stress, and when they’re stressed, plants might not grow as large or produce as much. This can be a problem for farmers, so many scientists have tried genetically modifying plants to be more resilient.
However plants modified for higher crop yields tend to have a lower stress tolerance because they put more energy into growth than into protection against stresses. Similarly, improving the ability of plants to survive stress often results in plants that produce less because they put more energy into protection than into growth. This conundrum makes it difficult to improve crop production.
North Korea Unveils New Missile Designed for US Mainland Strike
North Korea claimed to have launched a new solid-fuel, intermediate-range missile with a hypersonic warhead, aiming to test its reliability and maneuverability. The missile, designed to strike U.S. military bases in Guam and Japan, flew approximately 620 miles before landing between the Korean Peninsula and Japan. The test follows a previous claim of successfully testing […] The post North Korea Unveils New Missile Designed for US Mainland…
These tiny ‘power plants’ use the wind and rain to generate electricity
Researchers develop artificial ‘power plants’ in the form of tiny leaf-shapes to harness energy from the wind and rain.
Revolutionizing Electric Car Batteries: MIT’s Cost-Efficient, Cobalt-Free Solution
“I think this material could have a big impact because it works really well,” said Dr. Mircea Dincă. “It is already competitive with incumbent technologies, and it can save a lot of the cost and pain and environmental issues related to mining the metals that currently go into batteries.”
Electric vehicles (EVs) have become a household name in the last few years with several companies fighting to compete in the everchanging EV landscape as EV technology continues to improve in cost, efficiency, and the materials used to manufacture the batteries responsible for sustaining this clean energy revolution. While EV batteries have traditionally used cobalt for their battery needs, a recent study published in ACS Central Science discusses how organic cathode materials could be used as a substitute for cobalt for lithium-ion batteries while potentially offering similar levels of storage capacity and charging capabilities, as cobalt has shown to be financially, environmentally, and socially expensive.
“Cobalt batteries can store a lot of energy, and they have all of features that people care about in terms of performance, but they have the issue of not being widely available, and the cost fluctuates broadly with commodity prices,” said Dr. Mircea Dincă, who is a W.M. Keck Professor of Energy at MIT and a co-author on the study.
For their study, the researchers constructed a layered organic cathode comprised of cellulose, rubber, and other Earth-based elements. The team then subjected their organic cathode to a variety of tests, including energy storage, delivery, and charging capabilities. In the end, they found their cathode’s capabilities exceed most cobalt-based cathodes, including a charge-discharge time of 6 minutes. Additionally, while battery cathodes are known for significant wear and tear due to cracking from the flow of lithium ions, the researchers noted that the rubber and cellulose materials helped extend the battery cathode’s lifetime.
EU breakthrough laser beams could power nanosatellites in space wirelessly
The research project demonstrated a power output of 20 watts using a fiber-optic laser and aims to increase this to kilowatts in the future.
The main goal of the WiPTherm project was to create an innovative wireless energy transfer system that could recharge energy storage components on micro and nano-sized satellites.
The IFIMUP was tasked with developing thermoelectric sensors capable of absorbing light at 1,550 nm and using them to charge energy storage devices.
After three years of work, the consortium tested their technologies at the São Jacinto airbase in Aveiro, a city on the Portuguese west coast. During this display, the research team succeeded in generating 20 watts of power output using a fiber optic laser and directed it to the sensors.