Determining Plasmonic Hot Electrons and Photothermal Effects during H-2 Evolution with TiN-Pt Nanohybrids

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73601416" target="_blank" >RIV/61989592:15310/20:73601416 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acscatal.0c00343" target="_blank" >https://pubs.acs.org/doi/10.1021/acscatal.0c00343</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acscatal.0c00343" target="_blank" >10.1021/acscatal.0c00343</a>

Result language
angličtina
Original language name
Determining Plasmonic Hot Electrons and Photothermal Effects during H-2 Evolution with TiN-Pt Nanohybrids
Original language description
Hydrogen storage in chemical compounds is a promising strategy to enable lightweight, high-density, and safe hydrogen technologies. However, the hydrogen release rate from these chemicals is limited by the intrinsic catalytic activity of metal catalysts, which can be enhanced by light irradiation. Here, nanohybrids including a core of plasmonic TiN and multiple Pt nanocrystal catalytic centers are assembled and show, under resonant conditions at 700 nm, hot electron-driven hydrogen evolution from ammonia borane at an apparent quantum yield of 120%. It is also demonstrated that solar irradiation enhances the activity of TiN-Pt nanohybrids by one order of magnitude through two synergistic mechanisms: hot electrons and collective-heating contributions. Using the microscopic calculation of the photo-induced temperature around a single nanocrystal, it is revealed that the collective plasmonic heating regime dominates the macroscopic temperature distribution in the system. The presented data show that plasmonic hot electrons and photothermal heating can be used in synergy to trigger hydrogen release from ammonia borane on demand, providing a general strategy for greatly enhancing the activity of metal catalysts in the dark.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
<a href="/en/project/GA20-17636S" target="_blank" >GA20-17636S: Plasmonic catalysis with titanium nitride nanocrystals for sustainable chemical reactions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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