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Toyota Central R&D Labs develops new ferrihydrite material that effectively removes ozone from air

Green Car Congress

(Japan) report in the journal Angewandte Chemie the development of a mesoporous two-line ferrihydrite (2LFh)—ferrihydrite is a widespread mineral composed of iron, oxygen, and water—that could lead to a new generation of ozone filters in electrostatic devices and aircraft applications. removal; it showed about 95 % O 3.

Ozone 218
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The importance of considering non-exhaust traffic emissions; the role of EVs

Green Car Congress

the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al. Background.

Exhaust 150
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Report argues advanced HD natural gas vehicles foundational for California to hit air and climate goals; near zero-emission potential

Green Car Congress

Compared to the 2010 “Business as Usual” scenario—which includes all adopted emission control measures for the South Coast—NO x levels must be reduced by 65% and by 75% to meet the 2023 and 2032 ozone standards, respectively. To reduce power demand, some accessories can be converted to electric power.

Climate 257
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Study finds air quality models significantly underestimate traffic as source of NOx in Europe

Green Car Congress

Exhaust from modern gasoline powered engines, despite higher ignition temperatures than those powered by diesel, can be effectively treated for NO along with NMVOC (and CO) using a three way catalytic (TWC) converter. Resources. TWC treatment can lead to a 10 fold reduction of NO. —Karl et al. Striednig, C. Lamprecht, A.

Europe 150
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Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

Green Car Congress

Particle traps filter out soot particles from exhaust fumes. Soot could be further reduced by converting vehicles to run on renewable electric power. Black carbon converts sunlight to heat and radiates it back to the air around it. These three gases are all greenhouse gases, and ozone is a surface air pollutant.

Global 230
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PNNL team finds correlation between reaction mechanism for zeolite SCR catalyst for NOx aftertreatment and bacterial enzyme catalysis

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Although the catalyst is in use, exactly how it converts NO x to nitrogen and water with the help of ammonia (urea) hasn’t been entirely clear. The finding provides insight into how to make better catalytic converters. Combined FTIR and NMR studies revealed the presence of a side-on nitrosyl species in the zeolite Cu-SSZ-13.

Li-ion 225