Abstract Details
| Light-Induced Electron Transfer into Multi-Electron Reduction Catalysts on the Surfaces of Mesoporous Silicates | |
|---|---|
| Abstract ID | MAT-08 |
| Presenter | Walter Weare |
| Presentation Type | Poster |
| Full Author List | W. W. Weare (1) , J. Yano (1) , V. Yachandra (1) , C. Kubiak (2) , H. Frei (1) |
| Affiliations | (1) Lawrence Berkeley National Laboratory (2) University of California San Diego |
| Category | Materials Science |
| Abstract | Electron transfer from light-induced excited states (whether oxidative or reductive) of charge-transfer chromophores into multi-electron catalysts on the surface of mesoporous silicates is a method of capturing solar energy for fuel production. We have been focusing on molecular compounds loaded into photoactive mesoporous silicates which allow for the spectroscopic reporting of endoergic light-induced electron transfer (J. Am. Chem. Soc., 2008, 130, 11355-11363). This poster reports the loading of Ni-based carbon dioxide reduction catalysts, initially developed by Kubiak et al from UCSD, into mesoporous silicates which contain hetero-dinuclear visible light chromophores anchored on their surfaces. XANES and EXAFS studies, in tandem with other spectroscopic techniques such as EPR and FT-Raman, play a critical role for establishing the structural and electronic integrity of the Ni compounds inside the nanoscale channels of the silicate. |
| Footnotes | |
| Funding Acknowledgement | This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences of the U.S. Department of Energy under Contract DE-AC03-76SF00098. Portions of this research were carried out at the Stanford Synchrotron Radiation Laboratory, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. The SSRL Structural Molecular Biology Program is supported by the Department of Energy, Office of Biological and Environmental Research, and by the National Institutes of Health, National Center for Research Resources, Biomedical Technology Program. |