Carbon Nitride-Based Ruthenium Single Atom Photocatalyst for CO2 Reduction to Methanol

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F21%3A10247749" target="_blank" >RIV/61989100:27640/21:10247749 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15640/21:73607360

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/smll.202006478" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/smll.202006478</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/smll.202006478" target="_blank" >10.1002/smll.202006478</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon Nitride-Based Ruthenium Single Atom Photocatalyst for CO2 Reduction to Methanol

Popis výsledku v původním jazyce

With increasing concerns for global warming, the solar-driven photocatalytic reduction of CO2 into chemical fuels like methanol is a propitious route to enrich energy supplies, with concomitant reduction of the abundant CO2 stockpiles. Herein, a novel single atom-confinement and a strategy are reported toward single ruthenium atoms dispersion over porous carbon nitride surface. Ruthenium single atom character is well confirmed by EXAFS absorption spectrometric analysis unveiling the cationic coordination environment for the single-atomic-site ruthenium center, that is formed by Ru-N/C intercalation in the first coordination shell, attaining synergism in N-Ru-N connection and interfacial carrier transfer. From time resolved fluorescence decay spectra, the average carrier lifetime of the RuSA-mC(3)N(4) system is found to be higher compared to m-C3N4; the fact uncovering the crucial role of single Ru atoms in promoting photocatalytic reaction system. A high yield of methanol (1500 mu mol g(-1) cat. after 6 h of the reaction) using water as an electron donor and the reusability of the developed catalyst without any significant change in the efficiency represent the superior aspects for its potential application in real industrial technologies.

Název v anglickém jazyce

Carbon Nitride-Based Ruthenium Single Atom Photocatalyst for CO2 Reduction to Methanol

Popis výsledku anglicky

With increasing concerns for global warming, the solar-driven photocatalytic reduction of CO2 into chemical fuels like methanol is a propitious route to enrich energy supplies, with concomitant reduction of the abundant CO2 stockpiles. Herein, a novel single atom-confinement and a strategy are reported toward single ruthenium atoms dispersion over porous carbon nitride surface. Ruthenium single atom character is well confirmed by EXAFS absorption spectrometric analysis unveiling the cationic coordination environment for the single-atomic-site ruthenium center, that is formed by Ru-N/C intercalation in the first coordination shell, attaining synergism in N-Ru-N connection and interfacial carrier transfer. From time resolved fluorescence decay spectra, the average carrier lifetime of the RuSA-mC(3)N(4) system is found to be higher compared to m-C3N4; the fact uncovering the crucial role of single Ru atoms in promoting photocatalytic reaction system. A high yield of methanol (1500 mu mol g(-1) cat. after 6 h of the reaction) using water as an electron donor and the reusability of the developed catalyst without any significant change in the efficiency represent the superior aspects for its potential application in real industrial technologies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21000 - Nano-technology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Small

ISSN

1613-6810

e-ISSN

—

Svazek periodika

17

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

2006478

Kód UT WoS článku

000630436000001

EID výsledku v databázi Scopus

2-s2.0-85102754749