Novel Catalysts for Low Temperature Methane Oxidation

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Natural gas (predominantly methane, CH4) is an abundant, cleaner-burning fuel than gasoline, particularly when combined with hydrogen (H2). Westport Innovations Inc. of Vancouver, BC is a world-leading company that provides technology to transform diesel engines to operate on natural gas, biogas, propane, and hydrogen, with a focus on medium and heavy duty vehicles such as transit buses, delivery vehicles, refuse collection trucks, and large highway trucks. A significant impediment to the widespread implementation of natural gas in combustion engines is that unburned CH4 expelled in the exhaust is a significant greenhouse gas with a potency more than ~25 times that of carbon dioxide. Traditional catalytic converters, optimized for reducing oxides of nitrogen (NOx), unburned hydrocarbons, and carbon monoxide, are not efficient at methane