Colloidal titanium nitride nanobars for broadband inexpensive plasmonics and photochemistry from visible to mid-IR wavelengths

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F22%3A10250989" target="_blank" >RIV/61989100:27640/22:10250989 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15640/22:73618762

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2211285522010679?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2211285522010679?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nanoen.2022.107989" target="_blank" >10.1016/j.nanoen.2022.107989</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Colloidal titanium nitride nanobars for broadband inexpensive plasmonics and photochemistry from visible to mid-IR wavelengths

Popis výsledku v původním jazyce

Developing colloidal plasmonic nanomaterials with high carrier density that show optical resonances and photochemical activity extending from the visible to the mid-infrared (MIR) ranges remains a challenging pur-suit. Here, we report the fabrication of titanium nitride (TiN) nanobars obtained using a two-step procedure based on a wet chemical route synthesis of TiO2 nanowires and their subsequent high temperature annealing in ammonia flow. Electromagnetic simulations of the resulting TiN nanobars reveal a rich set of optical resonances featuring transverse, longitudinal and mixed transverse-longitudinal plasmonic modes that cover energies from the visible to MIR region. TiN nanobars decorated with Pt co-catalyst nanocrystals show enhanced photocatalytic hydrogen evolution activity in comparison to both isotropic TiN nanospheres of similar size and TiN nanocubes under near infrared excitation at 940 nm due to the enhanced hot electron generation. We also demonstrate that plasmonic TiN nanobars can be used for the detection of furfural molecular vibrations by providing a strong surface enhanced infrared absorption (SEIRA) effect in the MIR region.

Název v anglickém jazyce

Colloidal titanium nitride nanobars for broadband inexpensive plasmonics and photochemistry from visible to mid-IR wavelengths

Popis výsledku anglicky

Developing colloidal plasmonic nanomaterials with high carrier density that show optical resonances and photochemical activity extending from the visible to the mid-infrared (MIR) ranges remains a challenging pur-suit. Here, we report the fabrication of titanium nitride (TiN) nanobars obtained using a two-step procedure based on a wet chemical route synthesis of TiO2 nanowires and their subsequent high temperature annealing in ammonia flow. Electromagnetic simulations of the resulting TiN nanobars reveal a rich set of optical resonances featuring transverse, longitudinal and mixed transverse-longitudinal plasmonic modes that cover energies from the visible to MIR region. TiN nanobars decorated with Pt co-catalyst nanocrystals show enhanced photocatalytic hydrogen evolution activity in comparison to both isotropic TiN nanospheres of similar size and TiN nanocubes under near infrared excitation at 940 nm due to the enhanced hot electron generation. We also demonstrate that plasmonic TiN nanobars can be used for the detection of furfural molecular vibrations by providing a strong surface enhanced infrared absorption (SEIRA) effect in the MIR region.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21000 - Nano-technology

Projekt

<a href="/cs/project/EF15_003%2F0000416" target="_blank" >EF15_003/0000416: Pokročilé hybridní nanostruktury pro aplikaci v obnovitelných zdrojích energie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Nano Energy

ISSN

2211-2855

e-ISSN

2211-3282

Svazek periodika

104

Číslo periodika v rámci svazku

B

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

nestrankovano

Kód UT WoS článku

000896973600001

EID výsledku v databázi Scopus

2-s2.0-85141545488