Nitrogen Photoelectrochemical Reduction on TiB2 Surface Plasmon Coupling Allows Us to Reach Enhanced Efficiency of Ammonia Production
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F23%3A00574348" target="_blank" >RIV/61388980:_____/23:00574348 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/60461373:22310/23:43927200
Výsledek na webu
<a href="https://hdl.handle.net/11104/0344687" target="_blank" >https://hdl.handle.net/11104/0344687</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acscatal.3c03210" target="_blank" >10.1021/acscatal.3c03210</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Nitrogen Photoelectrochemical Reduction on TiB2 Surface Plasmon Coupling Allows Us to Reach Enhanced Efficiency of Ammonia Production
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Nitrogen Photoelectrochemical Reduction on TiB2 Surface Plasmon Coupling Allows Us to Reach Enhanced Efficiency of Ammonia Production
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10402 - Inorganic and nuclear chemistry
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
ACS Catalysis
ISSN
2155-5435
e-ISSN
2155-5435
Svazek periodika
13
Číslo periodika v rámci svazku
16
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
11
Strana od-do
10916-10926
Kód UT WoS článku
001042140000001
EID výsledku v databázi Scopus
2-s2.0-85168448147