Novel Catalysts for Low Temperature Methane Oxidation

与汽油相比，天然气(主要是甲烷，CH4)是一种储量丰富、燃烧更清洁的燃料，特别是在与氢(H2)结合时。位于不列颠哥伦比亚省温哥华的Westport Innovation Inc.是一家世界领先的公司，提供将柴油发动机改造为使用天然气、沼气、丙烷和氢气的技术，专注于中型和重型车辆，如公交巴士、送货车辆、垃圾收集卡车和大型公路卡车。天然气在内燃机上广泛应用的一个重要障碍是，排放在废气中的未燃烧的甲烷是一种重要的温室气体，其效力是二氧化碳的~25倍以上。针对氮氧化物(NOx)、未燃烧的碳氢化合物和一氧化碳的还原进行了优化的传统催化转化器在甲烷中效率不高

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