article thumbnail

Monash “artificial photosynthesis” system achieves in excess of 22% efficiency for production of hydrogen from water

Green Car Congress

A team at Monash University (Australia) has developed an “artificial photosynthesis” system that delivers the highest efficiency reported to date—in excess of 22%—for the solar-driven conversion of water to hydrogen. A paper on the researchers’s work is published in the RSC journal Energy & Environmental Science.

Water 150
article thumbnail

UW-Madison team develops novel hydrogen-producing photoelectrochemical cell using solar-driven biomass conversion as anode reaction

Green Car Congress

Researchers at the University of Wisconsin-Madison have developed an innovative hydrogen-producing photoelectrochemical cell (PEC), using solar-driven biomass conversion as the anode reaction. Examples include the reduction of water to give H 2 and the reduction of CO 2 to give carbon-based fuels such as methanol and methane.

article thumbnail

USDA provides $91M loan guarantee to Cool Planet for biogasoline blendstock plant; biomass pyrolysis and catalytic conversion

Green Car Congress

Cool Planet has devised a biomass-to-liquids thermochemical conversion process that simultaneously produces liquid fuels and sequesterable biochar useful as a soil amendment. The output from each catalytic array when cooled is comprised of volatile gases, renewable fuel and water. Earlier post.). Depending on the temperature (300 ?C

article thumbnail

New one-pot conversion of CO2 to polycarbonate copolymers

Green Car Congress

Researchers at Texas A&M have developed a two-step, one-pot conversion of CO 2 and epoxides (highly reactive compounds with a three-membered ring made of two carbon atoms and one oxygen atom) to polycarbonate block copolymers that contain both water-soluble and hydrophobic regions and can aggregate into nanoparticles or micelles.

article thumbnail

Study finds perennial biofuel crops’ water consumption similar to corn

Green Car Congress

Evapotranspiration (ET) refers to the sum total of water lost while the plant is growing, either from evaporation through the plant stem itself (a process called “transpiration”), or from water evaporated off of the plant’s leaves or the ground. —Hamilton et al.

Water 150
article thumbnail

Volkswagen 2.0 TDI diesel for Euro 6d; SCR twin-dosing

Green Car Congress

In 2015, the emissions scandal erupted over the use of defeat devices in Volkswagen engines for MY 2009 through 2015. Here, two SCR catalytic converters work together to split nitrogen oxides into water and nitrogen using AdBlue urea solution. TDI took a step forward and was therefore given the suffix “evo”.

Diesel 435
article thumbnail

Toshiba catalyst for efficient direct solar conversion of CO2 into ethylene glycol

Green Car Congress

The new catalyst can be used in artificial photosynthesis powered by solar energy to convert carbon dioxide and water into carbon compounds. Most artificial photosynthesis technologies use a two-electron reduction conversion process, producing carbon monoxide and formic acid.