Multifunctional photoelectroactive platform for CO2 reduction toward C2+ products-programmable selectivity with a bioinspired polymer coating

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F22%3A00552632" target="_blank" >RIV/61389013:_____/22:00552632 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/22:43924155 RIV/60461373:22810/22:43924155

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acscatal.1c03629" target="_blank" >https://pubs.acs.org/doi/10.1021/acscatal.1c03629</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acscatal.1c03629" target="_blank" >10.1021/acscatal.1c03629</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Multifunctional photoelectroactive platform for CO2 reduction toward C2+ products-programmable selectivity with a bioinspired polymer coating

Popis výsledku v původním jazyce

In recent years, CO2 photo/electroreduction has received great attention due to the urges and concerns to solve problems connected with global warming, for example, reducing the consumption of fossil fuels as energy sources and switching to renewable energy sources. The realization of this technology depends on efficient photo/electrocatalysts with high selectivity for the products. Herein, we report a programmable, bifunctional, scalable, high-performance, and low-cost bioinspired catalyst for photo/electrochemical CO2 reduction (P/EC-R). We synthesized hydroxyapatite (HAP) needle-like nanoparticles coated with a functional polydopamine polymer (HAP/P(DOPA)) and then modified them with copper nanoparticles (HAP/P(DOPA)/Cu NPs). It was expected that HAP and P(DOPA), due to their plentiful functional groups such as hydroxyl (−OH–), oxygen (−O•– and ═O), and amines (−NH2 and −NH−), provide extensive active catalytic sites, participate in the capture, maintenance, and hydrogenation of the CO2 intermediate, and offer a combination of efficient electrical conduction and photoactivity and synergistic effect together with Cu nanoparticles, thus potentially empowering CO2 P/EC-R. Interestingly, varying the polymerization time of the coating layer (P(DOPA)) leads to different product selectivities in both photoelectrochemical and electrochemical reactions. In a shorter polymerization period (2 h), CO (>83%) is the main product, while for 5 and 15 h, C2H6 (>70%) and CH4 (>74%) are the main products, respectively. It is noteworthy to mention that as the applied potential increased (>−1.2 V vs RHE), propanal (C3H6O, FE > 35%) and surprisingly ethyl acetate (C4H8O2, FE > 67%) have been detected. This is the first report on the C4 product.

Název v anglickém jazyce

Multifunctional photoelectroactive platform for CO2 reduction toward C2+ products-programmable selectivity with a bioinspired polymer coating

Popis výsledku anglicky

In recent years, CO2 photo/electroreduction has received great attention due to the urges and concerns to solve problems connected with global warming, for example, reducing the consumption of fossil fuels as energy sources and switching to renewable energy sources. The realization of this technology depends on efficient photo/electrocatalysts with high selectivity for the products. Herein, we report a programmable, bifunctional, scalable, high-performance, and low-cost bioinspired catalyst for photo/electrochemical CO2 reduction (P/EC-R). We synthesized hydroxyapatite (HAP) needle-like nanoparticles coated with a functional polydopamine polymer (HAP/P(DOPA)) and then modified them with copper nanoparticles (HAP/P(DOPA)/Cu NPs). It was expected that HAP and P(DOPA), due to their plentiful functional groups such as hydroxyl (−OH–), oxygen (−O•– and ═O), and amines (−NH2 and −NH−), provide extensive active catalytic sites, participate in the capture, maintenance, and hydrogenation of the CO2 intermediate, and offer a combination of efficient electrical conduction and photoactivity and synergistic effect together with Cu nanoparticles, thus potentially empowering CO2 P/EC-R. Interestingly, varying the polymerization time of the coating layer (P(DOPA)) leads to different product selectivities in both photoelectrochemical and electrochemical reactions. In a shorter polymerization period (2 h), CO (>83%) is the main product, while for 5 and 15 h, C2H6 (>70%) and CH4 (>74%) are the main products, respectively. It is noteworthy to mention that as the applied potential increased (>−1.2 V vs RHE), propanal (C3H6O, FE > 35%) and surprisingly ethyl acetate (C4H8O2, FE > 67%) have been detected. This is the first report on the C4 product.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/GA20-20201S" target="_blank" >GA20-20201S: Mikromotory na bázi 2D materiálů pro biomedicinální a environmentální aplikace</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

ACS Catalysis

ISSN

2155-5435

e-ISSN

2155-5435

Svazek periodika

12

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

1558-1571

Kód UT WoS článku

000743230900001

EID výsledku v databázi Scopus

2-s2.0-85123380803