Single-molecule Catalysis, seminar by Professor Peng Chen,  Department of Chemistry and Chemical Biology, Cornell University.

Single-molecule Catalysis

Seminarium av professor Peng Chen, Department of Chemistry and Chemical Biology, Cornell University, USA.
Sammanfattning: This presentation will describe our efforts in developing single-molecule approaches to study catalysis, focusing on two exemplary stories of interrogating the (photo)(electro)catalysis of nanoscale particles.
The first story will be about our work studying the catalytic properties of individual metal nanoparticles at single-turnover resolution and nanometer precision. I will describe the insights we gained into the catalytic activity and dynamics of individual metal nanoparticles, and the surprising spatial reactivity patterns within single facets at the nanoscale.
The second story will be about our work in using redox-selective super-resolution reaction imaging and sub-particle photocurrent measurements to determine the relation between charge-carrier surface activity and water oxidation efficiency on a semiconductor photoanode during photoelectrochemical water oxidation. I will describe how the mapping of hole and electron activity leads to the discovery of optimal sites for oxygen evolution catalysts and a strategy for rationally engineering photoelectrodes with catalysts.
Kategori Seminarium
Plats: PJ, lecture hall, Fysik Origo, Fysik
Tid: 2017-11-20 15:00
Sluttid: 2017-11-20 16:00

Publicerad: on 25 okt 2017. Ändrad: fr 27 okt 2017