Challenges and prospects of plasmonic metasurfaces for photothermal catalysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F22%3A73618744" target="_blank" >RIV/61989592:15640/22:73618744 - isvavai.cz</a>

Result on the web

<a href="https://www.degruyter.com/document/doi/10.1515/nanoph-2022-0073/html" target="_blank" >https://www.degruyter.com/document/doi/10.1515/nanoph-2022-0073/html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/nanoph-2022-0073" target="_blank" >10.1515/nanoph-2022-0073</a>

Result language

angličtina

Original language name

Challenges and prospects of plasmonic metasurfaces for photothermal catalysis

Original language description

Solar-thermal technologies for converting chemicals using thermochemistry require extreme light concentration. Exploiting plasmonic nanostructures can dramatically increase the reaction rates by providing more efficient solar-to-heat conversion by broadband light absorption. Moreover, hot-carrier and local field enhancement effects can alter the reaction pathways. Such discoveries have boosted the field of photothermal catalysis, which aims at driving industrially-relevant chemical reactions using solar illumination rather than conventional heat sources. Nevertheless, only large arrays of plasmonic nano-units on a substrate, i.e., plasmonic metasurfaces, allow a quasi-unitary and broadband solar light absorption within a limited thickness (hundreds of nanometers) for practical applications. Through moderate light concentration (∼10 Suns), metasurfaces reach the same temperatures as conventional thermochemical reactors, or plasmonic nanoparticle bed reactors reach under ∼100 Suns. Plasmonic metasurfaces, however, have been mostly neglected so far for applications in the field of photothermal catalysis. In this Perspective, we discuss the potentialities of plasmonic metasurfaces in this emerging area of research. We present numerical simulations and experimental case studies illustrating how broadband absorption can be achieved within a limited thickness of these nanostructured materials. The approach highlights the synergy among different enhancement effects related to the ordered array of plasmonic units and the efficient heat transfer promoting faster dynamics than thicker structures (such as powdered catalysts). We foresee that plasmonic metasurfaces can play an important role in developing modular-like structures for the conversion of chemical feedstock into fuels without requiring extreme light concentrations. Customized metasurface-based systems could lead to small-scale and low-cost decentralized reactors instead of large-scale, infrastructure-intensive power plants.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nanophotonics

ISSN

2192-8606

e-ISSN

2192-8614

Volume of the periodical

11

Issue of the periodical within the volume

13

Country of publishing house

DE - GERMANY

Number of pages

22

Pages from-to

3035-3056

UT code for WoS article

000798125600001

EID of the result in the Scopus database

2-s2.0-85130958371