SurfCat, DTU Physics, The Technical University of Denmark, 2800, Kgs. Lyngby, Denmark.
Chemphyschem. 2019 Nov 19;20(22):3024-3029. doi: 10.1002/cphc.201900588. Epub 2019 Sep 18.
Efficient electrocatalysts are required in order for electrocatalysis to play a large role in a future largely based on renewable energy sources. To rationally design these catalysts we need to understand the fundamental origin of their activities. In order to elucidate the relationship between catalyst structure and electrochemical behaviour, we investigate well-defined single-crystal catalysts in a UHV chamber interfaced with an electrochemical setup. Using the capabilities of UHV based methods, we can prepare more complex surface structures than it is possible with traditional EC methods and investigate their electrochemical behaviour. We exemplify this by showing results from both clean and intentionally structured Pt(111), Cu(111) and Pt/Cu(111).
为了使电催化在未来以可再生能源为基础的能源体系中发挥重要作用，我们需要高效的电催化剂。为了合理设计这些催化剂，我们需要了解其活性的基本来源。为了阐明催化剂结构与电化学行为之间的关系，我们在与电化学装置相连的超高真空腔室中研究了结构明确的单晶催化剂。利用基于超高真空的方法的能力，我们可以制备比传统 EC 方法更复杂的表面结构，并研究它们的电化学行为。我们通过展示清洁和有意结构化的 Pt(111)、Cu(111)和 Pt/Cu(111)的结果来说明这一点。
