甲烷二氧化碳（干）重整反应对经济、能源和环境均有着重要意义。但由于缺乏高温下对气固相互作用的有效观测手段，我们对实际反应温度达600摄氏度以上的气体分子在催化剂表面的吸附以及活化的认知仍然十分有限，严重阻碍了该反应新型高效催化剂的设计和开发。鉴于不同的吸附活化过程对应着差别明显且可准确测量的热效应以及双金属对催化的协同效应，本项目拟采用高灵敏度的吸附微量热测试系统，研究高温下气体在催化剂各组分（金属/双金属、载体、助剂及其复合结构）表面上的吸附焓变和吸附特性，从热力学角度解析不同气体在固体表面的吸附活化的行为特性。结合催化性能及其他表征手段，建立催化性能与催化剂各组分的吸附特性的关系模型，以指导更高效的甲烷干重整双金属催化剂的设计开发。本项目旨在甲烷干重整反应的新型双金属纳米复合结构催化剂的研发上取得突破，同时对能源分子的催化机理及其工业催化剂的开发研究也具有重要指导意义。

The catalytic dry reforming of methane (DRM) into syngas is important for the nation's economics, energy strategy, and the environments. The properties of the adsorption and activation of the gas molecules on different components of the catalysts at reaction temperature (above 600 oC) is still rare due to the absence of effective technologies to observe the gas-solid interaction. This hinders the design and development of novel catalysts. Due to the synergetic effect of bimetallic catalysts on catalysis, it is desired to develop bimetallic catalysts for DRM. The adsorption and activation of gas molecules on the surface of catalysts have significantly different and measurable heat effects. The systematic investigation on the adsorption enthalpies and properties of the gases on single metal nanoparticles, bimetallic nanoparticles, support oxides, additives, and their composite structures using adsorption microcalorimetry therefore will give the figures on the relationship between the adsorption/activation energies of gases and the catalytic performances. This will provide solid clues for the derivation of the catalytic mechanisms and the improvement on the design and synthesis of novel bimetallic catalysts. This study might make breakthrough on the selective activation of methane molecules and the design of novel bimetallic composite catalysts with improved performances. The result is also instructive for the mechanism study on the catalytic conversion of the energy molecules and the development of the related industrial catalysts.