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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. The conversion rate reaches 32.9 ± 1.38

Water 459
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Study finds direct seawater splitting has substantial drawbacks to conventional water splitting, offers almost no advantage

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A study by a team of researchers from Technische Universität Berlin (TUB) and Fritz-Haber-Institut der Max-Planck-Gesellschaft has found that direct seawater splitting for hydrogen production has substantial drawbacks compared to conventional water splitting and offers almost no advantage. Additionally, H 2 O is needed for water splitting.

Water 497
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CICERO-led study finds global warming effect of leaked hydrogen almost 12x stronger than CO2

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The open-access paper is published in Nature Communications Earth & Environment. Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. Rather, it is the leaking of hydrogen from production, transportation and usage that adds to global warming. Sand et al. Skeie, R.B.,

Hydrogen 435
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ICL briefing paper estimates that 52% of all small particle pollution from road transport comes from tires and brakes

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A new briefing paper from Imperial College London estimates that in 2021, 52% of all small particle pollution from road transport came from tires and brakes. Tire wear particles pollute the environment, the air we breathe, the water run-off from roads and has compounding effects on waterways and agriculture.

Pollution 243
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Empa researchers investigate release of micro-rubber particles from tires into environment

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Although the presence of microplastics in the environment is raising concerns, the amount of microplastics in air and water is small compared to another polymer that pollutes air and water: micro rubber. 22 kilotonnes of micro rubber have accumulated in the environment in Switzerland. —Christoph Hüglin.

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UNEP and partners launch Global Initiative for Resource-Efficient Cities; role of public transport

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The United Nations Environment Programme (UNEP) and partners have launched a new initiative that aims to reduce pollution levels, improve resource efficiency and reduce infrastructure costs in cities across the world. Up to 80% of the world population is expected to reside in cities by 2050.

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Researchers create salts for cheap and efficient CO2 capture; mimicking methane hydrate

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—Cafer Yavuz, professor of chemistry, and director of the KAUST Oxide and Organic Nanomaterials for Energy & Environment (ONE) Laboratory Previous carbon capture methods included chemisorption, where chemical bonds form between CO 2 molecules and the surface. Resources Zhiling Xiang, Congyan Liu, Chunhui Chen, Xin Xiao, Thien S.

Cheap 473