Triarylmethyl, and Acridinium Cation-Based Dyes for use as Hydrogen Evolution Catalyst

POSTER

Abstract

Solar energy conversion is limited by the temporal variance in solar radiation, necessitating the need for solar energy storage. One method is to use sunlight to drive uphill chemical reactions creating solar fuels, mainly hydrogen. To facilitate this we have investigated several pathways to generate fuels from abundant metal-free feedstock using sunlight. One key element in the scheme is a catalyst that can drive the reaction when given separated charges. We present select triarylmethyl (6O$+)$, and acridinium (2O$+)$ cation-based dyes that have been evaluated for their photo-catalytic behavior. Specifically redox potentials, ground state excited state radical and ionized absorptions and fluorescence spectra to measure energetics and determine viability for use with GaP as a light co-absorber.

Authors

  • George Hargenrader

    Bowling Green State Univ

  • Mikhail Zamkov

    University of Notre Dame, University of Toledo, Case Western Reserve University, John Carroll University, Bowling Green State Univ, Materials Science and Technology Division, Oak Ridge National Laboratory, Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Ohio University, Shanghai Jiao Tong University, Department of Chemistry and Biochemistry, University of Toledo, Department of Chemical Engineering, University of Toledo, Wuhan University, Southeast University, Physics and Astronomy and Center for Photochemical Science, Bowling Green State University, Physics and Astronomy, University of Toledo, Air Force Research Laboratory, Physics and Astronomy, Bowling Green State University, Purdue University, Student/Supervisor, Student, None, University of Michigan, Dearborn, Clemson University, Michigan State University, Bowling Green State University, Physics Dep, Cleveland State University, Physical Therapy Program, Central Michigan State University

  • Mikhail Zamkov

    University of Notre Dame, University of Toledo, Case Western Reserve University, John Carroll University, Bowling Green State Univ, Materials Science and Technology Division, Oak Ridge National Laboratory, Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Ohio University, Shanghai Jiao Tong University, Department of Chemistry and Biochemistry, University of Toledo, Department of Chemical Engineering, University of Toledo, Wuhan University, Southeast University, Physics and Astronomy and Center for Photochemical Science, Bowling Green State University, Physics and Astronomy, University of Toledo, Air Force Research Laboratory, Physics and Astronomy, Bowling Green State University, Purdue University, Student/Supervisor, Student, None, University of Michigan, Dearborn, Clemson University, Michigan State University, Bowling Green State University, Physics Dep, Cleveland State University, Physical Therapy Program, Central Michigan State University