Photoelectrochemical conversion of carbon dioxide to methanol and higher alcohols: A chemical carbon sequestration strategy

Andrew Bruce Bocarsly, Emily E. Barton

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

Abstract

There has been increasing interest in artificial photosynthetic schemes for converting atmospheric carbon dioxide into a value added fuel. Photoelectrochemical schemes while theoretically attractive for activating the carbon dioxide molecule, operate at excessive overpotentials and thus do not convert actual light energy to chemical energy. Here we describe the efficient and selective conversion of carbon dioxide to methanol at a semiconducting p-GaP electrode using a substituted pyridinium ion catalyst. We find that the reaction can be driven solely with light energy to yield faradaic efficiencies approaching 100% at potentials well below the thermodynamic potential. In addition to methanol, higher order alcohols such as ethanol and isopropanol can be photochemically synthesized by using ring substituted pyridinium catalysts.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 235th National Meeting, Abstracts of Scientific Papers
StatePublished - Dec 1 2008
Event235th National Meeting of the American Chemical Society, ACS 2008 - New Orleans, LA, United States
Duration: Apr 6 2008Apr 10 2008

Other

Other235th National Meeting of the American Chemical Society, ACS 2008
CountryUnited States
CityNew Orleans, LA
Period4/6/084/10/08

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Photoelectrochemical conversion of carbon dioxide to methanol and higher alcohols: A chemical carbon sequestration strategy'. Together they form a unique fingerprint.

  • Cite this

    Bocarsly, A. B., & Barton, E. E. (2008). Photoelectrochemical conversion of carbon dioxide to methanol and higher alcohols: A chemical carbon sequestration strategy. In American Chemical Society - 235th National Meeting, Abstracts of Scientific Papers