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Inexpensive Oxidation Catalyst Could Reduce Diesel Emissions

Date:
September 12, 2005
Source:
Pacific Northwest National Laboratory
Summary:
It's not a new material, but a new application of silver hollandite could make a big impact in diesel emissions control. Researchers at Pacific Northwest National Laboratory have developed an inexpensive method of synthesizing nano-sized silver hollandite and have found the material has unique catalytic properties that can completely oxidize nitrogens of oxide, carbon monoxide and hydrocarbons. These chemical reactions caused by the silver hollandite are key to reducing pollutants in diesel engine emissions.

PNNL scientists have found unique catalytic properties in silver hollandite.
Credit: Image courtesy of Pacific Northwest National Laboratory

It's not a new material, but a new application of silver hollandite could make a big impact in diesel emissions control. Researchers at Pacific Northwest National Laboratory have developed an inexpensive method of synthesizing nano-sized silver hollandite and have found the material has unique catalytic properties that can completely oxidize nitrogens of oxide, carbon monoxide and hydrocarbons. These chemical reactions caused by the silver hollandite are key to reducing pollutants in diesel engine emissions.

PNNL researchers have also discovered that silver hollandite is an excellent low-temperature sulfur oxides absorbent. Unlike most oxidation catalysts, which can be easily poisoned by sulfur oxides, silver hollandite maintains its catalytic activity even while it ages by absorbing sulfur oxides.

###

Pacific Northwest National Laboratory researcher Liyu Li will be presenting his results at the 230th national meeting of the American Chemical Society at 6:00 p.m., Wednesday, Aug. 31


Story Source:

The above story is based on materials provided by Pacific Northwest National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

Pacific Northwest National Laboratory. "Inexpensive Oxidation Catalyst Could Reduce Diesel Emissions." ScienceDaily. ScienceDaily, 12 September 2005. <www.sciencedaily.com/releases/2005/09/050911105720.htm>.
Pacific Northwest National Laboratory. (2005, September 12). Inexpensive Oxidation Catalyst Could Reduce Diesel Emissions. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2005/09/050911105720.htm
Pacific Northwest National Laboratory. "Inexpensive Oxidation Catalyst Could Reduce Diesel Emissions." ScienceDaily. www.sciencedaily.com/releases/2005/09/050911105720.htm (accessed April 17, 2014).

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