| AVS 62nd International Symposium & Exhibition | |
| Energy Frontiers Focus Topic | Tuesday Sessions |
| Session EN+AS+EM+SE+SS-TuM |
| Session: | Photocatalysis |
| Presenter: | Thomas Jaramillo, Stanford University |
| Authors: | T.F. Jaramillo, Stanford University J.D. Benck, Stanford University J. Kibsgaard, SLAC National Accelerator Laboratory T.R. Hellstern, Stanford University C.J. Hahn, Stanford University P. Chakthranont, Stanford University R. Britto, Stanford University K.D. Fong, Stanford University |
| Correspondent: | Click to Email |
The talk will focus on engineering surfaces and interfaces for solar photoelectrochemical (PEC) water-splitting for the direct, renewable production of H2. In particular, this talk begin by describing research efforts to develop H2 evolution catalysts that are active, stable, and comprised of only earth-abundant elements, including transition metal sulphides, phosphides, and phosphosulfides.1-3 Next, we will describe recent efforts to integrate these catalysts onto semiconductor surfaces to provide corrosion protection as well as enhanced interfacial catalysis for PEC water-splitting.4 This talk will focus on the need for high turnover frequency (TOF) catalysts, which ultimately enable the greatest flexibility in designing optimum interfaces for high performance devices.
[1] J. Kibsgaard, T.F. Jaramillo, F. Besenbacher, "Building an appropriate active site motif into a hydrogen evolution catalyst with thiomolybdate [Mo3S13]2- clusters," Nature Chemistry, 6 (2014) 248.
[2] J.D. Benck, T.R. Hellstern, J. Kibsgaard, P. Chakthranont, T.F. Jaramillo, "Catalyzing the Hydrogen Evolution Reaction (HER) with Molybdenum Sulfide Nanomaterials," ACS Catalysis, 4 (2014) 3957.
[3] J. Kibsgaard and T.F. Jaramillo, "Molybdenum Phosphosulfide: An Active, Acid-Stable Earth-Abundant Catalyst for the Hydrogen Evolution Reaction," Angewandte Chemie, 53 (2014) 14433.
[4] J.D. Benck, S.C. Lee, K.D. Fong, J. Kibsgaard, R. Sinclair, T.F. Jaramillo, "Designing active and stable silicon photocathodes for solar hydrogen production using molybdenum sulfide nanomaterials," Advanced Energy Materials, 4 (2014) 1400739.