Catalyst-Semiconductor Interfaces

The aim of the Catalyst-Semiconductor Interfaces Thrust is to understand the fundamental science behind the design of robust interfaces comprised of molecular catalyst-light absorbing semiconductor materials (hybrid photoelectrodes). We will aim to do this by:

Co-Leader Catalyst-Semiconductor Interfaces Thrust - Jim Cahoon

Co-Leader Catalyst-Semiconductor Interfaces Thrust - David Grills

  • Identifying catalyst/anchoring group/electrode surface combinations that facilitate efficient vectoral light induced charge transfer and result in durable integration of molecular catalysts with semiconductors.

  • Evaluating the photoelectrochemical performance of functionalized planar electrodes for light-driven reduction of CO₂.

  • Using a mechanism-guided approach that leverages theory and experiment to evaluate the influence of catalyst, linker identity, and semiconductor properties on hybrid photoelectrode performance for CO₂ reduction with metrics that include activity, durability, and selectivity.

  • Establishing and advancing state-of-the-art surface-specific microscopy, spectroscopy, and theory to characterize catalysts integrated with semiconductors and other heterogeneous supports.

  • Identifying environments at the photoelectrode-solution interface that impact a catalyst activity and/or durability, including electric fields, ions, polarity, and dielectric constants.

Jia, X.; Nedzbala, H. S.; Bottum, S. R.; Cahoon, J. F.; Concepcion, J. J.; Donley, C. L.; Gang, A.; Han, Q.; Hazari, N.; Kessinger, M. C.; Lockett, M. R.; Mayer, J. M.; Mercado, B. Q.; Meyer, G. J.; Pearce, A. J.; Rooney, C. L.; Sampaio, R. N.; Shang, B.; Wang, H. Inorg. Chem. 2023, 62 (5) 2359-2375 https://doi.org/10.1021/acs.inorgchem.2c04137

Suo, S.; Sheehan, C.; Zhao, F.; Xiao, L.; Xu, Z.; Meng, J.; Mallouk, T. E.; Lian, T. . J. Am. Chem. Soc., 2023, 145 (26), 14260-14266. https://doi.org/10.1021/jacs.3c02333

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Cascades Catalysis Thrust