中文摘要：

IntroductionGasoline and diesel are the major fuels forvehicles. The exhauSt gas of vehicles is a main sourceo f air pollution currently. Aromatic hydrocarbons aretile components of gasoline and diesel. In gasoline,these promote the octane numbef, improve buming,but are difficult to be decomposed in the nature, andharmful to the environmellt and the health of human,i f evaporst6d into the atmosphere and existed in theexhaust. Aromatics in the diesel lower the cetanenumber and the efficiency of buming, and i...

英文摘要：

Highly active and stable nickel catalyst for dehydrogenation of methane and hydrogenation of benzene is prepared from a precursor with hydrotalcite-like anionic clam structure by coprecipitation. The nickel particles have a narrow size distribution in several nanometers, and have a strong interaction with other components such as Al2O3. This catalyst is highly sensitive to further modification by doping and to reaction condition. On a modified catalyst, benzene hydrogenation to cyclohexane proceeds to compl...