Biomimetic multifunctional porous chalcogels as solar fuel catalysts

Benjamin D. Yuhas, Amanda L. Smeigh, Amanda P.S. Samuel, Yurina Shim, Santanu Bag, Alexios P. Douvalis, Michael R Wasielewski, Mercouri Kanatzidis

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

Biological systems that can capture and store solar energy are rich in a variety of chemical functionalities, incorporating light-harvesting components, electron-transfer cofactors, and redox-active catalysts into one supramolecule. Any artificial mimic of such systems designed for solar fuels production will require the integration of complex subunits into a larger architecture. We present porous chalcogenide frameworks that can contain both immobilized redox-active Fe4S4 clusters and light-harvesting photoredox dye molecules in close proximity. These multifunctional gels are shown to electrocatalytically reduce protons and carbon disulfide. In addition, incorporation of a photoredox agent into the chalcogels is shown to photochemically produce hydrogen. The gels have a high degree of synthetic flexibility, which should allow for a wide range of light-driven processes relevant to the production of solar fuels.

Original languageEnglish (US)
Pages (from-to)7252-7255
Number of pages4
JournalJournal of the American Chemical Society
Volume133
Issue number19
DOIs
StatePublished - May 18 2011

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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