Measurement of in situ structure and structural dynamics in biomimetic supramolecular solar fuel catalysts

David M. Tiede, Karen L. Mulfort, Lisa M. Utschig, Amy M Scott, Oleg G. Poluektov, Lin X. Xiaoyi, Zhang Klaus

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Photosynthesis serves as a paradigm for the design of molecular systems for solar energy conversion based on modular architectures, hierarchically assembly, and host-guest chemistry linked by non-covalent chemistry. Recent examples include the development of photosystem I-catalyst hybrids and a variety of supramolecular analogues that couple photosensitizers to catalysts for solar hydrogen production. Each differs considerably in efficiency of solar hydrogen production. A central challenge lies in the development of methods for in-situ characterization of biomimetic supramolecular structure that can be correlated to catalysis. Here, we demonstrate opportunities to characterize the structures of these modular supramolecular assemblies using synchrotron X-ray scattering. We have used a combination of wide-angle x-ray scattering of the molecular components and the completed assemblies to resolve interference patterns characteristic of the ground-state assembly. Further, we have developed laser-pump/70 ps X-ray probe pulse techniques for direct detection of atomic reorganization accompanying photochemical charge separation in solution-state supramolecular systems.

Original languageEnglish (US)
Title of host publicationACS National Meeting Book of Abstracts
StatePublished - 2011
Externally publishedYes
Event241st ACS National Meeting and Exposition - Anaheim, CA, United States
Duration: Mar 27 2011Mar 31 2011

Other

Other241st ACS National Meeting and Exposition
CountryUnited States
CityAnaheim, CA
Period3/27/113/31/11

Fingerprint

Structural dynamics
Biomimetics
Catalysts
Hydrogen production
Photosystem I Protein Complex
X rays
Photosensitizing Agents
Photosensitizers
Photosynthesis
X ray scattering
Synchrotrons
Energy conversion
Solar energy
Ground state
Catalysis
Laser pulses
Pumps
Scattering
Lasers

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Tiede, D. M., Mulfort, K. L., Utschig, L. M., Scott, A. M., Poluektov, O. G., Xiaoyi, L. X., & Klaus, Z. (2011). Measurement of in situ structure and structural dynamics in biomimetic supramolecular solar fuel catalysts. In ACS National Meeting Book of Abstracts

Measurement of in situ structure and structural dynamics in biomimetic supramolecular solar fuel catalysts. / Tiede, David M.; Mulfort, Karen L.; Utschig, Lisa M.; Scott, Amy M; Poluektov, Oleg G.; Xiaoyi, Lin X.; Klaus, Zhang.

ACS National Meeting Book of Abstracts. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tiede, DM, Mulfort, KL, Utschig, LM, Scott, AM, Poluektov, OG, Xiaoyi, LX & Klaus, Z 2011, Measurement of in situ structure and structural dynamics in biomimetic supramolecular solar fuel catalysts. in ACS National Meeting Book of Abstracts. 241st ACS National Meeting and Exposition, Anaheim, CA, United States, 3/27/11.
Tiede DM, Mulfort KL, Utschig LM, Scott AM, Poluektov OG, Xiaoyi LX et al. Measurement of in situ structure and structural dynamics in biomimetic supramolecular solar fuel catalysts. In ACS National Meeting Book of Abstracts. 2011
Tiede, David M. ; Mulfort, Karen L. ; Utschig, Lisa M. ; Scott, Amy M ; Poluektov, Oleg G. ; Xiaoyi, Lin X. ; Klaus, Zhang. / Measurement of in situ structure and structural dynamics in biomimetic supramolecular solar fuel catalysts. ACS National Meeting Book of Abstracts. 2011.
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