慶應義塾大学 理工学部学生課国際担当Office of Student Services (International) Keio University Faculty of Science and Technology ENGLISH PAGE
NEWS
2012.01.16

大学の世界展開力強化事業による講演会
「Truly monodispersed clusters at surfaces: STM studies and cluster's optical properties」

 

講演者: Ulrich Kaspar Heiz教授 (ミュンヘン工科大学)

 

原子数を規定した蒸着手法に表面プローブ法や分光学的手法を組み合せて、個々の金属クラスターの物性を、触媒活性と関連させて議論します。具体的には、固体基板の上に特定の原子数の金属クラスターを蒸着させることによって、その幾何構造や電子物性を走査型トンネル顕微鏡で物性評価するとともに、光学特性を高感度分光法によって評価し、金属クラスターの原子数依存性を特徴とする反応性の変化を解明しました。

Metal clusters generated in a laser ablation source are non-destructively deposited onto a well-defined substrate with size-selection. The optical and physical properties of the truly mono-dispersed clusters at surfaces are investigated by highly sensitive optical spectroscopy and by scanning tunnel microscopy. The electronic and geometric structures of small clusters on surfaces by local probes will be discussed from the viewpoint of the dynamics of cluster motion to reactivities and cluster-assembled catalysts.

 

日時 : 2012年1月31日(火) 14:00−15:30

場所 : 矢上キャンパス 創想館2階 ディスカッションルーム2

対象 : 理工学部、理工学研究科の学生

 

講演者紹介 Professor Ulrich Kaspar Heiz (ミュンヘン工科大学) Academic Career and Research Areas Prof. Heiz explores the physical and chemical properties of the smallest matter particles in the non-scalable size regime. In this regime, the properties of the clusters are determined by the exact number of atoms. His research findings create a better understanding of nanocatalysis, asymmetric catalysis and photocatalysis. He also works on characterizing and developing new optic materials based on size-selected clusters. After studying chemistry at the University of Bern (1987), Prof. Heiz obtained his doctorate there in physical chemistry (1991). Thanks to grants from the Andrew Mellon Foundation and the Swiss National Science Foundation, he was able to do research at the laboratory of the Exxon Research and Engineering Company and the University of Pittsburgh. He completed his lecturer qualification in physics at the University of Lausanne in 1998. After that, he spent time in Japan and Berlin (as an Alexander von Humboldt fellow) before accepting a professorship at the University of Ulm in 2000. Since 2004, he has been full professor of physical chemistry at TUM. He has declined several Chairs at overseas universities (University of California at Berkeley, Georgia Institute of Technology, USA). Prof. Heiz is a member of the Alexander von Humboldt Foundation board. In 2010, he received an ERC Advanced Grant.