article thumbnail

Stanford researchers make ammonia from air and water microdroplets

Green Car Congress

Stanford researchers, with a colleague from King Fahd University of Petroleum and Minerals, have developed a simple and environmentally sound way to make ammonia with tiny droplets of water and nitrogen from the air. Water microdroplets are the hydrogen source for N 2 in contact with Fe 3 O 4. The conversion rate reaches 32.9 ± 1.38

Water 459
article thumbnail

Rice U team creates low-cost, high-efficiency integrated device for solar-driven water splitting; solar leaf

Green Car Congress

Rice University researchers have created an efficient, low-cost device that splits water to produce hydrogen fuel. The current flows to the catalysts that turn water into hydrogen and oxygen, with a sunlight-to-hydrogen efficiency as high as 6.7%. It utilizes water and sunlight to get chemical fuels.

Low Cost 243
article thumbnail

Heliogen and Bloom Energy demonstrate production of low-cost green hydrogen; concentrated solar and high-temp electrolysis

Green Car Congress

The extended operating time of Heliogen’s technology and Bloom Energy’s ability to utilize heat efficiently is designed to reduce the cost of green hydrogen production compared to competing solutions. Because it operates at high temperatures, the Bloom Electrolyzer requires less energy to break up water molecules and produce hydrogen.

Low Cost 397
article thumbnail

Argonne-led team develops new low-cost cobalt-based catalyst for PEM electrolysis

Green Car Congress

A multi-institutional team led by the US Department of Energy’s (DOE) Argonne National Laboratory (ANL) has developed a low-cost cobalt-based catalyst for the production of hydrogen in a proton exchange membrane water electrolyzer (PEMWE). volts (Nafion 212 membrane) and low degradation in an accelerated stress test.

Low Cost 186
article thumbnail

DGIST, PNNL team develops efficient, low-cost anode material for water electrolysis

Green Car Congress

A commercial Pt/C cathode-assisted, core–shell Co@NC–anode water electrolyzer delivers 10 mA cm ?2 V—70 mV lower than that of the IrO 2 –anode water electrolyzer. In electrocatalytic water splitting, oxygen gas generates in the anode due to the oxygen evolution reaction (OER). 2 at a cell voltage of 1.59

Low Cost 150
article thumbnail

PNNL team develops new low-cost method to convert captured CO2 to methane

Green Car Congress

By using a water-lean post-combustion capture solvent, (N-(2-ethoxyethyl)-3-morpholinopropan-1-amine) (2-EEMPA), they achieved a greater than 90% conversion of captured CO 2 to hydrocarbons—mostly methane—in the presence of a heterogenous Ru catalyst under relatively mild reaction conditions (170 °C and 2 pressure). Heldebrant, D.,

Low Cost 315
article thumbnail

HyperSolar reaches 1.25 V for water-splitting with its self-contained low-cost photoelectrochemical nanosystem

Green Car Congress

volts (V) of water-splitting voltage with its novel low-cost electrolysis technology. The theoretical minimum voltage needed to split water molecules into hydrogen and oxygen is 1.23 Nanosystem for water electrolysis. HyperSolar, Inc. announced that it had reached 1.25 V (at 25 °C at pH 0). Click to enlarge.

Low Cost 246