Green Car Congress

DECEMBER 3, 2014

Toshiba Corporation has developed a new technology that uses solar energy directly to generate carbon compounds from carbon dioxide and water, and to deliver a viable chemical feedstock or fuel with potential for use in industry. Fuels Hydrogen Production Solar Solar fuels' Mechanism of the technology. Source: Toshiba.

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Conversion Solar Fuel Energy 231

Green Car Congress

AUGUST 11, 2023

Photoelectrochemical (PEC) water splitting based on solar energy is one promising approach for the production of green hydrogen. 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%.

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Water Hydrogen Conversion Solar 369

Green Car Congress

SEPTEMBER 19, 2017

This new work, described in a study published in the journal Energy and Environmental Science , is the first to successfully demonstrate the approach of going from carbon dioxide directly to target products—ethanol and ethylene—at energy conversion efficiencies rivaling natural counterparts. —Gurudayal et al. Earlier post.).

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Solar Light Fuel CO2 170

Green Car Congress

AUGUST 2, 2010

Stanford engineers have developed a process—photon-enhanced thermionic emission, PETE—that simultaneously uses the light and heat of the sun to generate electricity in a way that could make solar power production more than twice as efficient as existing methods. (a) a) Energy diagram of the PETE process. b) One possible implementation.

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Conversion Solar Energy Light 255

Green Car Congress

MARCH 14, 2017

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

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Light Solar Conversion Hydrogen 236

Green Car Congress

FEBRUARY 27, 2017

Duke University researchers have engineered rhodium nanoparticles that can harness the energy in ultraviolet light and use it to catalyze the conversion of carbon dioxide to methane, a key building block for many types of fuels. So we get to choose how the reaction goes with light in a way that we can’t do with heat.

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Light Conversion CO2 Hydrogen 150

Green Car Congress

MAY 17, 2011

With the creation of a 3-D nanocone-based solar cell platform, a team led by Oak Ridge National Laboratory’s Jun Xu has boosted the light-to-power conversion efficiency of photovoltaics by nearly 80 percent. The technology substantially overcomes the problem of poor transport of charges generated by solar photons.

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Conversion Solar Chad Transportation 236

Green Car Congress

JULY 30, 2012

Panasonic has developed an artificial photosynthesis system using a gallium nitride photoelectrode and a metal catalyst which uses sunlight to convert CO 2 mainly to formic acid (an important intermediate in chemical synthesis) at an efficiency (solar energy to chemical energy) of 0.2%—a —a comparable level to that of plants.

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Conversion CO2 Solar Light 374

Green Car Congress

MAY 2, 2022

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).

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Hydrogen Water Conversion Solar 415

Green Car Congress

JUNE 18, 2012

Changing the concentration of indium gallium nitride in photovoltaics allows researchers to tune the material’s response to collect solar energy from a variety of wavelengths, thereby maximizing efficiency. Cross-sectional images of the indium gallium nitride nanowire solar cell. Power conversion efficiencies were low—only 0.3%

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Solar Conversion Available Energy 199

Green Car Congress

FEBRUARY 16, 2016

A team of researchers at Ulsan National Institute of Science and Technology (UNIST), Korea University, and the Korea Advanced Institute of Science and Technology (KAIST) has developed a new type of multilayered (Au NPs/TiO 2 /Au) photoelectrode that could boost the ability of solar water-splitting to produce hydrogen. 2016.01.004.

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Water Light Hydrogen Solar 150

Green Car Congress

APRIL 6, 2020

Researchers at the University of Southampton have transformed optical fibers into photocatalytic microreactors that convert water into hydrogen fuel using solar energy. Computerized tomography of a MOFC, showing buildup of TiO 2 (light blue particles) in the triangular channels. Zepler Institute, University of Southampton.

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Water Convert Hydrogen Solar 371

Green Car Congress

FEBRUARY 25, 2013

The autonomous plasmonic solar water splitter, which was operated with 1 M potassium borate electrolyte (pH 9.6) The autonomous plasmonic solar water splitter, which was operated with 1 M potassium borate electrolyte (pH 9.6) Structure and mechanism of operation of the autonomous plasmonic solar water splitter. (a)

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Water Solar Conversion Hydrogen 220

Green Car Congress

MAY 18, 2017

When light is applied to photocatalysts, electrons and holes are produced on the surface of the catalyst; hydrogen is obtained when these electrons reduce the hydrogen ions in water. As a result, it has a more efficient conversion rate for producing hydrogen than conventional nanoparticulate photocatalysts.

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Light Hydrogen Production Conversion 150

Green Car Congress

OCTOBER 9, 2014

million for seven research projects designed to advance a broad range of renewable energy technologies, including solar cells, batteries, renewable fuels and bioenergy. The mineral perovskite is a promising, low-cost material for enhancing the efficiency of silicon solar cells. Light trapping in high?efficiency, modified plants.

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Renewable Solar Zinc Air Energy 225

Green Car Congress

DECEMBER 16, 2013

Researchers from the University of Houston (UH) have developed a cobalt(II) oxide (CoO) nanocrystalline catalyst that can carry out overall water splitting with a solar-to-hydrogen efficiency of around 5%. Different sources of light were used, ranging from a laser to white light simulating the solar spectrum.

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Houston Water Solar Universal 268

Green Car Congress

JUNE 29, 2019

It’s a capital-light solution that takes advantage of technology that has been commercialized for decades. Solar Sister (Great Falls, Virginia) invests in women’s enterprises in off-grid communities in Africa. reducing catalysts. Each of the 10 2019 Keeling Curve Prize winners will receive $25,000 in prize money.

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2019 Lesotho Conversion Aspen 207

Green Car Congress

FEBRUARY 13, 2019

The Dutch Institute for Fundamental Energy Research ( DIFFER ) is partnering with Toyota Motor Europe (TME) to develop a device that absorbs water vapor, and splits it into hydrogen and oxygen directly using solar energy. In this project, DIFFER and TME are exploring an innovative way to produce hydrogen directly out of humid air.

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Water Hydrogen Solar Toyota 333

Green Car Congress

FEBRUARY 24, 2020

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.

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Convert Chinese Light Hydrogen 221

Green Car Congress

MAY 4, 2018

As reported in an open-access paper in Nature Communications, the wafer-level photochemical diode arrays exhibited solar-to-hydrogen efficiency of ~3.3% Previous direct solar water splitters have achieved a little more than 1 percent stable solar-to-hydrogen efficiency in fresh or saltwater. in neutral (pH?~?7.0)

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Water Solar Hydrogen Carbon 186

Green Car Congress

DECEMBER 3, 2014

Researchers from UC Berkeley, Lawrence Berkeley National Laboratory and Nanyang Technological University, Singapore have developed a new technology for direct solar water-splitting—i.e., When immersed in water with visible light irradiation (? ? Click to enlarge. A paper describing their work is published in the journal ACS Nano.

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Water Solar Design Singapore 270

Green Car Congress

APRIL 11, 2017

Researchers in Japan and China developed an efficient method for CO 2 reduction over elemental boron catalysts in the presence of only water and light irradiation through a photothermocatalytic process. A paper on their work is published in the journal Angewandte Chemie. When the sun shines on a surface, it is heated. —Jinhua Ye.

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Conversion CO2 Fuel Convert 150

Green Car Congress

APRIL 15, 2019

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). NH 3 -poor for PM). coal, oil, natural gas, and biomass). Schnell, Vaishali Naik, Larry W. 2019.04.003.

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Conversion Jordan Ozone Coal 281

Green Car Congress

MAY 11, 2020

They were able to raise the conversion rate up to 42% of its theoretical limit (16%) by synthesizing tiny nanoparticle subunits in the hematite. The solar water splitting capacity was greatly enhanced by making the nano-particles in the mesocrystal structures smaller. Fe 2 O 3 ) photocatalysts. The oxidation potential is 1.23V.

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Water Hydrogen Production Solar 334

Green Car Congress

JULY 30, 2017

Researchers in Japan report that a commercially available TiO 2 with a large number of surface oxygen vacancies, when photo-irradiated by UV light in pure water with nitrogen—successfully produces ammonia (NH 3 ). Photocatalytic nitrogen reduction is an attractive pathway because it can use light energy, the team pointed out.

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Water Conversion Japan Green 170

Green Car Congress

APRIL 13, 2017

Scientists at the US Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) recaptured the record for highest efficiency in solar hydrogen production via a photoelectrochemical (PEC) water-splitting process. a, Solar flux incident from the right, on an immersed tandem water-splitting device where photons with hν > 1.8

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Solar Hydrogen Production Water 207

Green Car Congress

APRIL 16, 2014

Many water-splitting photocatalysts, such as titanium dioxide (TiO 2 ), can decompose water and produce hydrogen fuel when absorbing ultraviolet light. However, due to their inability to absorb visible light, which accounts for more than half of solar energy, their practical use in the conversion of solar energy is limited.

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Water Light Li-ion Solar 170

Green Car Congress

APRIL 14, 2017

showed for the first time how MEG allowed a solar cell to exceed 100% quantum efficiency by producing more electrons in the electrical current than the amount of photons entering the solar cell. Light is absorbed at the photoanode within the QD layer producing free electrons and holes. —Matthew Beard. Nozik, Matthew C.

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Solar Water Energy Fuel 150

Green Car Congress

SEPTEMBER 5, 2015

Researchers at Rice have demonstrated an efficient new way to use solar energy for water splitting. Structure and mechanism of operation of plasmonic photocathode for plasmon-mediated direct electron injection to drive solar-to-chemical energy conversion. (a) —Robatjazi et al.

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Water Solar Conversion Light 150

Green Car Congress

APRIL 29, 2015

The US Department of Energy announced $75 million in funding to renew the Joint Center for Artificial Photosynthesis ( JCAP ), a DOE Energy Innovation Hub originally established in 2010 with the goal of harnessing solar energy for the production of fuel. The research program involves eight core projects: Light Capture and Conversion.

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Solar Fuel Water Light 150

Green Car Congress

JULY 26, 2022

Efficiency improvements and carbon emissions reduction in energy conversion and storage technologies. Solar Turbines. nano (MMN) multiscale modeling framework to optimize high strength aluminum alloys and processes for vehicle light-weighting. Carbon Nanospike Based Photoelectrochemical CO2 Conversion. 300,000 .

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Energy CO2 Hydrogen Carbon 321

Green Car Congress

FEBRUARY 19, 2014

Designing an artificial leaf that uses solar energy to convert water cheaply and efficiently into hydrogen and oxygen is one of the goals of BISfuel (Bio-inspired Solar fuel production)—the Energy Frontier Research Center, funded by the Department of Energy, in the Department of Chemistry and Biochemistry at Arizona State University.

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Water Solar Conversion Arizona 236

Green Car Congress

SEPTEMBER 5, 2009

Light harvesting can use various optical concentrators and beam splitters can redirect sub-bandgap radiation away from the PV onto the electrolyzer. The STEP (Solar Thermal Electrochemical Photo) process fundamentally captures sunlight more efficiently than photovoltaics by using the full (UV, visible and infrared) sunlight.

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Solar Conversion CO2 2009 258

Green Car Congress

AUGUST 1, 2016

They also applied this catalyst in a light-harvesting artificial leaf platform that concurrently oxidized water in the absence of any external potential. C) Calculated solar-to-fuel efficiency (SFE) of photochemical process. milliamperes per square centimeter, CO faradaic efficiency of 24%, and CO formation turnover frequency of 0.28

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Solar Conversion Fuel CO2 150

Green Car Congress

SEPTEMBER 1, 2017

A team of researchers in France has discovered an algal photoenzyme that catalyzes the decarboxylation of free fatty acids to n-alkanes or -alkenes in response to blue light. Many organisms—photosynthetic and nonphotosynthetic—use light for processes such as growth, development, and metabolism. variabilis or C.

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Light Convert Li-ion France 150

Green Car Congress

NOVEMBER 14, 2013

A key benefit of this joint effort is the direct coordination of NSF-funded use-inspired basic research and EERE-funded applied R&D toward the development of cost-effective large-scale systems for the low-carbon production of hydrogen through advanced solar water-splitting technologies.

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Water Solar Production Hydrogen 210

Green Car Congress

JUNE 15, 2015

The system, they suggest in a paper published in the Journal of the American Chemical Society , provides an alternative route to artificial photosynthesis for directly harvesting and storing solar energy in the form of chemical fuel. under visible light illumination (420–600 nm) without any other energy input. —Li et al.

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Solar Hydrogen Fuel Conversion 150