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Nitrogen Photoelectrochemical Reduction on TiB2 Surface Plasmon Coupling Allows Us to Reach Enhanced Efficiency of Ammonia Production
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SYSNO ASEP 0574348 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Nitrogen Photoelectrochemical Reduction on TiB2 Surface Plasmon Coupling Allows Us to Reach Enhanced Efficiency of Ammonia Production Author(s) Zabelina, A. (CZ)
Miliutina, E. (CZ)
Dědek, J. (CZ)
Trelin, A. (CZ)
Zabelin, D. (CZ)
Valiev, R. R. (FI)
Ramazanov, R. (FI)
Burtsev, V. (CZ)
Popelková, Daniela (UACH-T) SAI
Šťastný, Martin (UACH-T) SAI, RID
Švorčík, V. (CZ)
Lyutakov, O. (CZ)Source Title ACS Catalysis. - : American Chemical Society - ISSN 2155-5435
Roč. 13, č. 16 (2023), s. 10916-10926Number of pages 11 s. Language eng - English Country US - United States Keywords photoelectrochemical nitrogen reduction ; plasmon coupling ; TiB2 ; NH3 ; productionhybrid photocatalyst Subject RIV CA - Inorganic Chemistry OECD category Inorganic and nuclear chemistry R&D Projects LM2018124 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UACH-T - RVO:61388980 UT WOS 001042140000001 EID SCOPUS 85168448147 DOI 10.1021/acscatal.3c03210 Annotation Ammonia is one of the most widely produced chemicalsworldwide,which is consumed in the fertilizer industry and is also consideredan interesting alternative in energy storage. However, common ammoniaproduction is energy-demanding and leads to high CO2 emissions.Thus, the development of alternative ammonia production methods basedon available raw materials (air, for example) and renewable energysources is highly demanding. In this work, we demonstrated the utilizationof TiB2 nanostructures sandwiched between coupled plasmonicnanostructures (gold nanoparticles and gold grating) for photoelectrochemical (PEC) nitrogen reduction and selective ammonia production. The utilizationof the coupled plasmon structure allows us to reach efficient sunlightcapture with a subdiffraction concentration of light energy in thespace, where the catalytically active TiB2 flakes wereplaced. As a result, PEC experiments performed at -0.2 V (vs.RHE) and simulated sunlight illumination give the 535.2 and 491.3 & mu,g h(-1) mg(cat) (-1) ammonia yields, respectively, with the utilization of pure nitrogenand air as a nitrogen source. In addition, a number of control experimentsconfirm the key role of plasmon coupling in increasing the ammoniayield, the selectivity of ammonia production, and the durability ofthe proposed system. Finally, we have performed a series of numericaland quantum mechanical calculations to evaluate the plasmonic contributionto the activation of nitrogen on the TiB2 surface, indicatingan increase in the catalytic activity under the plasmon-generatedelectric field. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0344687
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