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Stanford researchers make ammonia from air and water microdroplets

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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. —Song et al. Song et al.

Water 459
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Researchers review risk to water resources from unconventional shale gas development in US

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They identified four potential modes of water resource degradation: (1) shallow aquifers contaminated by fugitive natural gas (i.e., They identified four potential modes of water resource degradation: (1) shallow aquifers contaminated by fugitive natural gas (i.e., Credit: ACS, Vengosh et al. Click to enlarge.

Water 306
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U Oregon team advances effectiveness of catalytic water dissociation in bipolar membranes

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Researchers at the University of Oregon have advanced the effectiveness of the catalytic water dissociation reaction in bipolar membranes. The technology behind bipolar membranes, which are layered ion-exchange polymers sandwiching a water dissociation catalyst layer, emerged in the 1950s. —Oener et al.

Oregon 284
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BRUSA electric drive components now available in 750-volt versions; targeted for commercial and very high performance

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Products available in 750V versions include: HSM1-10.18.13-HV. The DMC517 is an ultra-compact, universal inverter which can be used to drive different motor types up to around 50 kW. The DMC527 is a compact, universal inverter which can be used to drive different motor types up to around 100 kW.

Volt 312
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U of Melbourne team demonstrates direct hydrogen production from air; direct air electrolysis (DAE)

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Researchers at the University of Melbourne (Australia) have demonstrated a method of direct hydrogen production from air— in situ capture of freshwater from the atmosphere using hygroscopic electrolyte and subsequent electrolysis powered by solar or wind with a current density up to 574 mA cm ?2.

Hydrogen 396
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EU project HyFlexFuel converted sewage sludge and other biomasses into kerosene by hydrothermal liquefaction (HTL); SAF

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The EU-funded research project HyFlexFuel recently successfully produced biocrudes via hydrothermal liquefaction (HTL) from a variety of biomasses, including sewage sludge, food waste, manure, wheat straw, corn stover, pine sawdust, miscanthus and microalgae in a pilot-scale continuous HTL plant at Aarhus University (Denmark).

Convert 418
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EPFL team develops low-cost water splitting cell with solar-to-hydrogen efficiency of 12.3%

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Michael Grätzel at EPFL (Ecole Polytechnique Fédérale de Lausanne) in Switzerland has developed a highly efficient and low-cost water-splitting cell combining an advanced perovskite tandem solar cell and a bi-functional Earth-abundant catalyst. Splitting water requires an applied voltage of at least 1.23 V and up to 1.5

Low Cost 278