This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
Most of us naturally associate biological CO 2 conversion with photosynthesis in plants and algae. Furthermore, the maximum efficiency of solar energy conversion by photosynthesis is 5%, while typical solar panel efficiency reaches 20%. an and Park (2020) “Light-Independent Biological Conversion of CO 2 ,” Joule doi: 10.1016/ j.joule.2020.08.007.
The efficient conversion of carbon dioxide, a major air pollutant, into ethanol or higher alcohols is a big challenge in heterogeneous catalysis, generating great interest in both basic scientific research and commercial applications. The key to this is the well-tuned interplay between the cesium, copper, and zinc oxide sites.
The conversion normally requires significant amounts of energy in the form of high heat—a temperature of at least 700 ?C, An array of light beams impinging upon the grid would activate the LSPs. An array of light beams impinging upon the grid would activate the LSPs.
By using light-activated quantum dots to fire particular enzymes within microbial cells, the researchers were able to create “living factories” that eat CO 2 and convert it into products such as biodegradable plastic, gasoline, ammonia and biodiesel. Therefore, these resting cells function as nano-microbial factories powered by light.
Therefore, it is not surprising that in 2020, the first year of the pandemic, the annual miles driven per car or light truck (SUV, pickup truck, or van) decreased substantially. Of more interest is the new finding that this reduction was entirely due to a reduced use of cars as opposed to light trucks. Cars and light trucks.
An illustration of the light-powered, one-step remediation process for hydrogen sulfide gas made possible by a gold photocatalyst created at Rice University. Each island was a gold nanoparticle about 10 billionths of a meter across that would interact strongly with a specific wavelength of visible light. —Naomi Halas.
Following on the reveal of Renault Master Van H2-TECH last month ( earlier post ), HYVIA has unveiled two new Hydrogen Light Commercial Vehicles prototypes with zero CO 2 tailpipe emissions, increased range, and 5-minute refueling time. This vehicle allows a range of about 250 km and offers great potential for tailor-made conversions.
The catalyst shows a carbon dioxide conversion through hydrogenation to hydrocarbons in the aviation jet fuel range of 38.2%, with a yield of 17.2%, and a selectivity of 47.8%, and with an attendant low carbon monoxide (5.6%) and methane selectivity (10.4%). In brief, the Fe–Mn–K catalyst shows a CO 2 conversion of 38.2%
The North American International Auto Show (NAIAS) will cancel its June 2020 show in Detroit in light of the coronavirus (COVID-19) pandemic sweeping across the world and the Federal Emergency Management Agency’s expected plans to repurpose TCF Center into a temporary field hospital. NAIAS will hold its next annual show in June 2021.
A team of scientists at the University of Cambridge has reported the light-driven photoreforming of cellulose, hemicellulose and lignin to H 2 using semiconducting cadmium sulfide quantum dots in alkaline aqueous solution. CdS is an inexpensive, visible-light-absorbing photocatalyst with a bulk electronic bandgap of around 2.4
2 ethylene at 1.54% light to ethylene conversion efficiency. fold improvement in the light to ethylene conversion efficiency as compared to the cell suspension. It also improves light utilization under low-light conditions and strongly promotes cell fitness. fold increase in the production yield; and a 3.5-fold
When illuminated with light-emitting diodes rather than lasers, the photocatalytic efficiencies remain comparable, even when the scale of reaction increases by nearly three orders of magnitude. Unlike traditional catalysts, it doesn’t require heat; it harvests energy from light. —Peter Nordlander, co-author.
In a recent report assessing multiple properties of plug-ion electric vehicles (PEVs) solid in the US, a team from Argonne National Laboratory (ANL) estimates that the energy savings in the United States due to light-duty PEVs in 2019 was 44.8 Gasoline conversion to Btu using gross heating value 125,000 Btu/gallon. More than 1.4
However, some compounds like FeF 3 are capable of transferring multiple electrons through a more complex reaction mechanism, called a conversion reaction. Iron fluoride, an intercalation-conversion cathode for lithium-ion batteries, promises a high theoretical energy density of 1922?Wh?kg nanometers. —Dong Su.
Researchers from Northwestern University and Princeton University have explored the impact on US air quality from an aggressive conversion of internal combustion vehicles to battery-powered electric vehicles (EVs). Schnell, Vaishali Naik, Larry W. Horowitz, Fabien Paulot, Paul Ginoux, Ming Zhao, Daniel E. 2019.04.003.
Researchers from Tokyo Tech have developed a tin-based metal–organic framework (MOF) that can photocatalytically reduce carbon dioxide (CO 2 ) into formate under visible light. A popular method for carrying out such conversions is to use visible light for driving the photoreduction of CO 2 via photocatalysts. 202305923
Retrofitting technology like this will enable Stellantis to support this trend —Eric Laforge, Stellantis Vice President, Enlarged Europe Light Commercial Vehicles. Stellantis N.V. In a market boosted by last-mile demand, city access restrictions will soon require recent LCV owners to look for a solution to convert to zero emissions.
A team of biologists and engineers modified Rhodopseudomonas palustris TIE-1 (TIE-1) so that it can produce a biofuel using only three renewable and naturally abundant source ingredients: carbon dioxide, solar panel-generated electricity and light. The results are reported in an open-access paper in the journal Communications Biology.
Photocatalytic water splitting has attracted great interest as a means of cost-effective conversion of sustainable solar energy to valuable chemicals. The sources of error and standard reporting protocols for hydrogen evolution rate, light source calibration, and solar-to-hydrogen (STH) efficiency have been revisited and recommended.
Rationally controlling the conversion of radical intermediates for preferential hydrogen termination is the key to high selectivity in obtaining alkane products. The researchers conducted conversion of these two industrial fatty acid mixtures, obtaining alkane products in high yields (up to 95%). —Prof.
Ideally, photocatalysts could use sunlight and water to produce hydrogen, however it is necessary to achieve a conversion rate of 10% to enable such a system to be adopted industrially. Recently, they have succeeded in increasing the light energy conversion efficiency by applying this technology to hematite (?-Fe under 600nm).
Preliminary data in EPA’s 2020 Automotive Trends Report shows average fuel economy for model year 2020 light-duty vehicles increased to 25.7 If this preliminary data holds, that will be a new record high for average new light-duty vehicle fuel economy. miles per gallon (MPG).
The new work, published in Science , shows that four-electron conversion for lithium-oxygen electrochemistry is highly reversible. The Waterloo team is the first to achieve four-electron conversion, which doubles the electron storage of lithium-oxygen, also known as lithium-air, batteries. —Linda Nazar. Resources.
Here, we report the bulk-scale conversion of asphaltenes into a stable, naturally occurring form of carbon, namely, graphene, using a single-step, low-cost, energy-efficient, recyclable, scalable, and sustainable technique called flash joule heating (FJH).
Researchers from the Naval Air Warfare Center Weapons Division (NAWCWD) have developed an efficient three-step process for the conversion of cellulosic feedstocks to both a valuable chemical precursor and high-performance jet fuel blendstock. Their paper appears in the journal ChemSusChem. Woodroffe & Harvey (2020).
The vision for the Colorado Electric Vehicle Plan 2020 is the large-scale transition of Colorado’s transportation system to zero-emission vehicles, with a long-term goal of 100% of light-duty vehicles being electric and 100% of medium- and heavy-duty vehicles being zero emission. This will require maintaining 50% plus annual growth rates.
Light-Material Interactions in Energy Conversion (LMI). Tailor the morphology, complex dielectric structure, and electronic properties of matter so as to sculpt the flow of sunlight and heat, enabling lightconversion to electrical energy with unprecedented efficiency. FY 2014 EFRC Awards. Lead organization.
In light of the United States’ renewed effort to achieve a net zero carbon economy, our research team believes this critical review is a timely contribution to establishing an accurate, common understanding of the greenhouse gas profile for corn ethanol in comparison to gasoline refined from crude oil. gCO 2 e/MJ (range of 37.6
They fabricated a highly efficient photocathode by spatially and functionally decoupling light absorption and catalytic activity. Large-scale conversion and storage of solar energy via the production of hydrogen would likely rely upon Earth-abundant materials. This is necessary because catalysts usually reflect light.
The home’s occupant will be able to use less than half of the energy of a similarly sized new home in the Davis area for heating, cooling and lighting. Advanced lighting. Honda worked with researchers from the California Lighting Technology Center at UC Davis to explore new circadian color control logic. Photo by Dorian Toy.
Computerized tomography of a MOFC, showing buildup of TiO 2 (light blue particles) in the triangular channels. Alongside hydrogen generation from water, the multi-disciplinary research team is investigating photochemical conversion of carbon dioxide into synthetic fuel. Zepler Institute, University of Southampton.
We knew the F-150 Lightning was special, but the interest from the public has surpassed our highest expectations and changed the conversation around electric vehicles. The center uses natural lighting, as well as LED lighting and the primary forklift fleet will use hydrogen fuel cells with a zero-emission profile.
Researchers from the University of Michigan and McGill University in Canada report photochemical syngas synthesis using a core/shell Au@Cr 2 O 3 dual cocatalyst in coordination with multistacked InGaN/GaN nanowires (NWs) with the sole inputs of CO 2 , water, and solar light. under concentrated solar light illumination.
The novel photoanodes suppress the undesirable internal and external losses associated with photoelectrochemical water splitting, resulting in an unprecedented photon-to-current conversion efficiency of 12.79%. Further, it enhanced the light-soaking stability of the OHP cell, a crucial factor in real-world PEC water splitting.
It’s a capital-light solution that takes advantage of technology that has been commercialized for decades. African Clean Energy (Lesotho) produces cookstoves that reduce smoke emissions and solar electricity for small electronics and LED lighting. reducing catalysts. Clean Energy Works (Washington, D.C.)
This project will complete key engineering design and demonstration tests to enable cost-competitive, carbon-neutral production of synthetic jet fuel and diesel using nuclear energy from existing light water reactors.
The storage battery market is expected to continue growing in light of the spread of renewable energy and electrified vehicles, as well as the global trend toward carbon neutrality.
In addition, auxiliary consumers such as navigation, daytime running lights, radio and ventilation were either temporarily or permanently in operation. All conversion work will be completed as scheduled this year. Nevertheless, power consumption was a low 10.9 kWh/100 km. The standardized consumption rating of the ID.3 kWh/100 km.
With its close proximity to the engine, it already lights off shortly after a cold start. The catalytic converter installed further away from the engine performs the main share of nitrogen oxide conversion specifically at high loads and correspondingly high exhaust gas temperatures.
At the Movin’On 2018 mobility summit in Montreal, hydrogen fuel-cell company Symbio intoduced a 40-kW fuel cell system—H2Motiv L—targeting range-extending conversion applications for heavy-duty electric vehicles. Auxiliary functions are optimized for system operation (power conversion, cooling, preheating, air compression).
The photocatalyst has a very high conversion efficiency and is relatively easy to manufacture, making it advantageous for commercialization. The addition of copper and platinum nanoparticles on the catalyst’s surface was found to significantly improve the efficiency of this process. —Prof.
With its innovative technology, Transform Materials breaks down methane and other similar light hydrocarbon gases without oxygen, recombining the resulting fragments into two high-value end products, acetylene and hydrogen.
That connection emerged several years ago in a series of conversations between myself, Jayson Stewart , and my grandfather Rudolf Schultz. At the time, about a decade ago, I was helping to refine a system for fabricating chips using extreme ultraviolet (EUV) light. Sadly, my grandfather is not here to see our article completed.
The highest reported solar to hydrogen (STH) conversion efficiency for such a system composed of polymer electrolyte membrane (PEM) electrolyzers powered by an InGaP/GaAs/GaInNAsSb triple-junction solar cell was 30%, tested over 48 h.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content