It's not a new material, but a new application of silver hollanditecould make a big impact in diesel emissions control. Researchers atPacific Northwest National Laboratory have developed an inexpensivemethod of synthesizing nano-sized silver hollandite and have found thematerial has unique catalytic properties that can completely oxidizenitrogens of oxide, carbon monoxide and hydrocarbons. These chemicalreactions caused by the silver hollandite are key to reducingpollutants in diesel engine emissions.
PNNL researchers have also discovered that silver hollandite is anexcellent low-temperature sulfur oxides absorbent. Unlike mostoxidation catalysts, which can be easily poisoned by sulfur oxides,silver hollandite maintains its catalytic activity even while it agesby absorbing sulfur oxides.
Pacific Northwest NationalLaboratory researcher Liyu Li will be presenting his results at the230th national meeting of the American Chemical Society at 6:00 p.m.,Wednesday, Aug. 31
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