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Novel In Situ Probes for Nanocatalysis

机译：用于纳米催化的新型原位探针

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During the past few years, substantial effort has been devoted to developing new experimental techniques capable of delivering atomic-scale information on surfaces and nanoparticles under catalytic reaction conditions. Since the advent of surface science, pioneering experiments under highly idealized conditions have been performed (at very low gas pressures, ＜ 10~(-6) mbar), and idealized model material systems (e.g., single crystals) have been investigated. However, understanding chemical reactions on single-crystal surfaces close to ultrahigh vacuum does not always enable prediction of the performance of nanoparticles operating at gas pressures near or above atmospheric pressure. Therefore, this MRS Bulletin issue focuses on the capabilities of atomic-scale-resolution, high-gas-pressure- and high-temperature-compatible in situ probes sensitive to the structure, chemical composition, and dynamical properties of nanomaterials. It will be demonstrated how novel in situ techniques enable one to bridge the combined pressure and materials gaps from ultrahigh vacuum to atmospheric pressures and from metal single-crystal surfaces to nanoparticles or oxides.
机译：在过去的几年中，已经投入大量精力来开发能够在催化反应条件下在表面和纳米颗粒上传递原子级信息的新实验技术。自表面科学问世以来，已经在高度理想化的条件下（低于10〜（-6）mbar的极低气压）进行了开创性实验，并研究了理想化的模型材料系统（例如单晶）。然而，了解接近超高真空的单晶表面上的化学反应并不总是能够预测在接近或高于大气压的气体压力下工作的纳米颗粒的性能。因此，本《 MRS通报》的重点是对纳米材料的结构，化学成分和动力学性质敏感的原子级分辨率，高气压和高温兼容的原位探针的功能。将证明新颖的原位技术如何使人们能够弥合从超高真空到大气压以及从金属单晶表面到纳米颗粒或氧化物的组合压力和材料间隙。

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