Some twists and turns in the path of improving surface activity

Athanasios G. Papathanasiou, Janpeter Wolff, Ioannis G. Kevrekidis, Harm Hinrich Rotermund, Gerhard Ertl

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The average reactivity of a catalytic surface was appreciably enhanced through spatio-temporally variable operation. Computer steering of a focused laser beam allowed the realization of controlled temperature profiles and their interaction with intrinsic system (reaction/transport) time and space scales. Real-time monitoring of the product concentration then enabled the exploration/implementation of strategies towards optimizing the overall reaction rate. The ability to dictate reaction conditions in space and time, whether in open or in closed loop [1-3] [Science 292 (2001) 1357; Nature 361 (1993) 240; Science 294 (2001) 134], opens new directions for reaction control (e.g., of activity and selectivity in more complex reaction networks) through the combination of chemistry and systems theory.

Original languageEnglish (US)
Pages (from-to)407-412
Number of pages6
JournalChemical Physics Letters
Issue number5-6
StatePublished - Jun 7 2002

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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