Remove Conversion Remove Hydrogen Remove Michigan Remove Water
article thumbnail

New photochemical diode artificial photosynthesis system doubles efficiency of solar water splitting

Green Car Congress

Researchers in Canada have demonstrated a new photochemical diode artificial photosynthesis system that can enable efficient, unassisted overall pure water splitting without using any sacrificial reagent. overall water splitting reaction. These free charges split water molecules into hydrogen and oxygen. …

Water 186
article thumbnail

New highly efficient catalyst for photoelectrochemical CO2 reduction toward methane

Green Car Congress

Researchers at the University of Michigan, McGill University and McMaster University have developed a binary copper?iron Likewise, H 2 O must be broken down to attach the hydrogen to the carbon. It can use the sun’s energy or an electrical current to break down the carbon dioxide and water. Image credit: Baowen Zhou.

CO2 349
article thumbnail

PEM Fuel Cells, Energy Conversion, and Mathematics

Green Car Congress

Water (liquid or vapor) is formed at the cathode catalyst. Liquid water hydrates the membrane and increases its protonic conductivity, but may also flood the catalyst layer pores, preventing oxygen from reaching the catalyst layers. Cross-section of a unit cell. Promislow and Wetton, 2009. Click to enlarge.

article thumbnail

New method of ammonia pretreatment for biomass increases saccharification rates up to 5-fold; prospects for more cost-effective biofuels and chemicals production

Green Car Congress

The new pretreatment approach uses ammonia (NH 3 ) to reorganize the hydrogen bond network within cellulose, resulting in up to a 5-fold increase in saccharification rates. This, in turn, significantly reduces the tightness of the cellulose network and leaves it more vulnerable to conversion into sugar by fungi-derived cellulolytic enzymes.

Hydrogen 236
article thumbnail

U. Mich study: natural-gas-based ICE, BEV and FCV all show promise for environmental benefits relative to conventional ICE

Green Car Congress

Results of a lifecycle analysis by a team at the University of Michigan suggest that multiple types of natural gas-powered vehicles—i.e., water depletion potential (WDP). Their study appears in the ACS journal Energy & Fuels. … Dai and Lastoskie used eight environmental indicators: human toxicity (HT). terrestrial toxicity (TET).

Gas 218
article thumbnail

Researchers produce green syngas using CO2, water and sunlight

Green Car Congress

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. This will significantly reduce overall CO 2 emissions.

Water 504
article thumbnail

New pilot plant for GTI IH2 biomass-to-liquids process

Green Car Congress

The Gas Technology Institute (GTI) in Des Plaines, IL, recently added a new Pilot-Scale IH 2 Plant to broaden biomass-to-liquid hydrocarbon fuel conversion. This is over 70% efficient energy conversion, and the production of exportable steam can raise the overall process efficiency even higher. Earlier post.).