期刊
NANO LETTERS
卷 20, 期 5, 页码 3663-3672出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.0c00594
关键词
plasmonics; titanium nitride; solar-thermal; solar chemicals; nanocavity; sustainable catalysis
类别
资金
- Ministry of Education, Youth, and Sports through the project ERC CZ [LL1903]
- Operational Programme Research, Development and Education -European Regional Development Fund [CZ.02.1.01/0.0/0.0/15_003/0000416]
- Air Force Office of Scientific Research Grant [FA9550-17-10243]
- MEYS CR [LM2018110]
Most of existing solar thermal technologies require highly concentrated solar power to operate in the temperature range 300-600 degrees C. Here, thin films of refractory plasmonic TiN cylindrical nanocavities manufactured via flexible and scalable process are presented. The fabricated TiN films show polarization-insensitive 95% broadband absorption in the visible and near-infrared spectral ranges and act as plasmonic nanofurnaces capable of reaching temperatures above 600 degrees C under moderately concentrated solar irradiation (similar to 20 Suns). The demonstrated structures can be used to control nanometer-scale chemistry with zeptoliter (10(-21 )L) volumetric precision, catalyzing C-C bond formation and melting inorganic deposits. Also shown is the possibility to perform solar thermal CO oxidation at rates of 16 mol h(-1) m(-)2 and with a solar-to-heat thermoplasmonic efficiency of 63%. Access to scalable, cost-effective refractory plasmonic nanofurnaces opens the way to the development of modular solar thermal devices for sustainable catalytic processes.
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