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MAN Diesel & Turbo delivers 1st IMO-certified two-stroke with Tier III NOx control, EGR systems

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IMO Tier III came into force in January 2016. Vessels with a keel-laid date on or after 1 January 2016 that travel in NO x Emission Control Areas (ECA) require IMO Tier III-certified engines. Sodium hydroxide dosing is therefore required to neutralise the acidic scrubber water. Rationale behind G-type introduction.

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Researchers convert atmospheric CO2 to carbon nanofibers and nanotubes for use as anodes in Li-ion and Na-ion batteries

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Researchers from George Washington University and Vanderbilt University have demonstrated the conversion of atmospheric CO 2 into carbon nanofibers (CNFs) and carbon nanotubes (CNTs) for use as high-performance anodes in both lithium-ion and sodium-ion batteries. times above that of sodium-ion batteries with graphite electrodes.

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Researchers develop all-weather solar cell that generates power from rain as well as from sun

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Raindrops are not pure water; they contain salts that dissociate into positive and negative ions. The positively charged ions, including sodium, calcium, and ammonium ions, can bind to the graphene surface. 2016) “A Solar Cell That Is Triggered by Sun and Rain.” doi: 10.1002/anie.201602114. 201602114.

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China’s New Breeder Reactors May Produce More Than Just Watts

Cars That Think

Liquid sodium is used as a coolant because it does not slow down neutrons as much as water does. Japan also developed a fast breeder power reactor, one that proved to be a costly mistake, prompting a decision in 2016 to decommission it. Weapons-grade plutonium can be separated chemically from the blanket.

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CMU study concludes lithium market fluctuations unlikely to impact Li-ion battery prices significantly

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Furthermore, both lithium supply shortages and extreme price variations are frequently used as justifications for research on alternate cation electrochemical energy storage technologies such as sodium, magnesium, and potassium based systems. If prices do quadruple, it becomes, in principle, economical to extract lithium from sea water.

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Researchers synthesize new Li-S cathode based on “carbon compartments”

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The team then used ultrasonic irradiation to facilitate the reaction between dilute hydrochloric acid (HCl) solution and an aqueous sulfur precursor of sodium thiosulfate (Na 2 S 2 O 3 ) in the presence of CCs to yield a composite of CC particles with pure nano-size sulfur (CCs/S composite) and a water soluble by-product of sodium chloride (NaCl).

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Tohoku researchers develop efficient hydrodynamic reactor for pretreatment of biomass

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Researchers at Tohoku University in Japan have developed a new system combining hydrodynamic cavitation with sodium percarbonate (SP) (an environmentally benign oxidation reagent) for the efficient pre-treatment of biomass. These bubbles subsequently collapse when the pressure increases downstream of the constriction. 5b04375.

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