Novel electrification strategy enhances low-temperature NOx removal

https://phys.org/news/2023-12-electrification-strategy-low-temperature-nox.html

"diesel exhaust temperatures, <250 ℃, too low for catalytic NOx conversion to occur, so: Pt and K co-supported antimony-doped tin oxides serve as conductive catalysts. Using C3H6 as reductant, a low input power (0.5-4 W) applied to catalyst triggers NSR reactions... ignition temperature for 10% NOx conversion reduced to 165 °C... 23% increased maximum energy efficiency, promoting NO oxidation for NOx adsorption, O2 evolution for NOx desorption, asnd C3H6 activation for NOx reduction"

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