Journal
ACS APPLIED ENERGY MATERIALS
Volume 3, Issue 10, Pages 10008-10014Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.0c01685
Keywords
photocatalysis; water oxidation; TiO2 nanocrystals; Ru molecular catalyst; carbon nanotubes; hybrid systems
Funding
- BIST Ignite project SOLHYCAT
- Spanish MCIU (AEI/FEDER, UE) [RTI2018-099965-B-I00]
- Generalitat de Catalunya [2017-SGR1431]
- MINECO [PID2019-111617RB-I00, 2017-SGR-1631]
- FEDER [PID2019-111617RB-I00, 2017-SGR-1631]
- AGAUR [PID2019-111617RB-I00, 2017-SGR-1631]
- MINECO through the Ramon y Cajal program [RYC-2012-10991]
- la Caixa Foundation
- Severo Ochoa program from Spanish MINECO [SEV-2017-0706]
- CERCA Program from Generalitat de Catalunya
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A modular molecular hybrid colloidal photocatalyst composed of TiO2 nanocrystals (TiO2-NCs) as a light absorber and the molecular complex [Ru(tda)(pypyr)(2)], Ru-tda, as a water oxidation catalyst precursor both anchored onto single-walled carbon nanotubes (SWCNTs) is described. This colloidal molecular hybrid photocatalyst, labeled as Ru-tda/SWCNT/TiO2-NCs, is a robust material that can be easily prepared and scaled up. At neutral pH, in the presence of 3 sun illumination, the molecular hybrid material Ru-tda/SWCNT/TiO2-NCs is capable of achieving the photocatalytic oxidation of water to dioxygen in the presence of persulfate, giving an unprecedented turnover number of 229.
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