Modulating Hole Transport in Multilayered Photocathodes with Derivatized p-Type Nickel Oxide and Molecular Assemblies for Solar-Driven Water Splitting
Journal Article
·
· The Journal of Physical Chemistry Letters
- University of North Carolina at Chapel Hill
- BATTELLE (PACIFIC NW LAB)
We report here a new photocathode composed of a bi-layered doped NiO film topped by a macro-mesoporous ITO (ioITO) layer with molecular assemblies attached to the ioITO surface. The NiO film containing a 2% K+ doped NiO inner layer and a 2% Cu2+ doped NiO outer layer provides sufficient driving force for hole transport after injection to NiO by the molecular assembly. The tri-layered oxide, NiK0.02O | NiCu0.02O | ioITO, sensitized by a ruthenium polypyridyl dye and functionalized with a nickel-based hydrogen evolution catalyst, outperforms its counterpart, NiO | NiO | ioITO, in photocatalytic hydrogen evolution from water over a period of several hours with a Faradaic yield of ~90%.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Alliance for Molecular PhotoElectrode Design for Solar Fuels (AMPED). Center for Molecular Electrocatalysis (CME); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1582550
- Report Number(s):
- PNNL-SA-125679
- Journal Information:
- The Journal of Physical Chemistry Letters, Vol. 8, Issue 18
- Country of Publication:
- United States
- Language:
- English
Similar Records
Modulating Hole Transport in Multilayered Photocathodes with Derivatized p-Type Nickel Oxide and Molecular Assemblies for Solar-Driven Water Splitting
Photogeneration of hydrogen from water by a robust dye-sensitized photocathode
Photogeneration of hydrogen from water by a robust dye-sensitized photocathode
Journal Article
·
Thu Aug 31 00:00:00 EDT 2017
· Journal of Physical Chemistry Letters
·
OSTI ID:1582550
+5 more
Photogeneration of hydrogen from water by a robust dye-sensitized photocathode
Journal Article
·
Fri Jan 01 00:00:00 EST 2016
· Energy & Environmental Science
·
OSTI ID:1582550
+4 more
Photogeneration of hydrogen from water by a robust dye-sensitized photocathode
Journal Article
·
Fri Jan 01 00:00:00 EST 2016
· Energy & Environmental Science
·
OSTI ID:1582550
+4 more