Purchase of Continuum Laser System for the Study of Tunable Localized Surface Plasmon Resonance of Tailored Photocatalysts
Abstract
The synthesis of tailored plasmonic nanoparticles with tunable localized surface plasmon resonances (LSPRs) have led to the emerging field of plasmonic photocatalysis. Illuminated metal nanoparticles have been shown to accelerate important chemical reactions and select for desired products at reduced temperatures. However, fundamental research is needed to clearly distinguish plasmonic behaviors (e.g. hot electron mediated process) from more traditional photo-induced local heating and photo-induced changes in nanoparticle morphology and support materials). This proposal seeks to develop an explicit understanding of wavelength-dependent plasmonic properties and photocatalytic effects of tailored photocatalysts for several gaseous reactions, including CO2 reduction and the corresponding reverse reaction of steam reforming. To complement our present house-built gaseous reaction system and toolbox of tailored photocatalysts, a high-power tunable light source is essential for a detailed understanding of wavelength-dependent plasmonic properties in photocatalytic reactions. Important reaction parameters such as light intensity and light wavelength can be precisely controlled and coordinated to the LSPR of the photocatalyst. With the help of this instrument, results from systematic investigations can help to expand fundamental knowledge of plasmonic photocatalysis and lead to the development of sustainable chemical processes.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 11, 2019
- Source ID
- W911NF1910126
Entities
People
- Jie Liu
Organizations
- Army Contracting Command
- Duke University
- United States Army