Nanostructural synergism as Mn–N–C channels in manganese (IV) oxide and fluffy g-C3N4 layered composite with exceptional catalytic capabilities

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924818" target="_blank" >RIV/60461373:22310/22:43924818 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0021979721021524?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0021979721021524?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jcis.2021.12.023" target="_blank" >10.1016/j.jcis.2021.12.023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanostructural synergism as Mn–N–C channels in manganese (IV) oxide and fluffy g-C3N4 layered composite with exceptional catalytic capabilities

Popis výsledku v původním jazyce

The avenues of catalysis and material science are always accepted and it is hoped that a state-of-the-art catalyst with exceptional intrinsic redox characteristics would be produced. This study focused on developing a multi-featured catalyst of high economical and commercial standards to meet the multi-directional applications of environmental and energy demands. Manganese (IV) oxide nanosheets made of fluffy-sheet-like g-C3N4 material were successfully synthesized by pyrolysis method. The electron-rich g-C3N4 network and semiconducting metallic oxides of MnO2 nanosheets generated high electron density interfaces within the intra-composite structure. The input of active interfaces along with strong metal-to-support interactions achieved between two parallel nanosheets in MnO2/g-C3N4 catalyst intrinsically boosted up its electrochemical and optical characteristics for it to be used in multi-catalytic fields. Successful trails of catalysts’ performance have been made in three major catalytic fields with enhanced activities such as heterogeneous catalysis (reduction of nitrobenzene with rate constant of “K = 0.734 min−1” and hydrogenation of styrene with “100% conversion” efficiency, including negligible change in five consecutive cycles), photocatalysis (degradation of methylene blue dye model within 20 min with negligible change in five consecutive cycles) and electrocatalysis (oxygen reduction reactions having comparable “diffusion-limited-current density” behaviour with that of the commercial Pt/C catalyst). The enhanced performance of catalysts in transforming chemicals, degrading organic pollutant species and producing sustainable energy resources from air oxygen can mitigate the challenges faced in environmental and energy crises, respectively. © 2021 The Authors

Název v anglickém jazyce

Nanostructural synergism as Mn–N–C channels in manganese (IV) oxide and fluffy g-C3N4 layered composite with exceptional catalytic capabilities

Popis výsledku anglicky

The avenues of catalysis and material science are always accepted and it is hoped that a state-of-the-art catalyst with exceptional intrinsic redox characteristics would be produced. This study focused on developing a multi-featured catalyst of high economical and commercial standards to meet the multi-directional applications of environmental and energy demands. Manganese (IV) oxide nanosheets made of fluffy-sheet-like g-C3N4 material were successfully synthesized by pyrolysis method. The electron-rich g-C3N4 network and semiconducting metallic oxides of MnO2 nanosheets generated high electron density interfaces within the intra-composite structure. The input of active interfaces along with strong metal-to-support interactions achieved between two parallel nanosheets in MnO2/g-C3N4 catalyst intrinsically boosted up its electrochemical and optical characteristics for it to be used in multi-catalytic fields. Successful trails of catalysts’ performance have been made in three major catalytic fields with enhanced activities such as heterogeneous catalysis (reduction of nitrobenzene with rate constant of “K = 0.734 min−1” and hydrogenation of styrene with “100% conversion” efficiency, including negligible change in five consecutive cycles), photocatalysis (degradation of methylene blue dye model within 20 min with negligible change in five consecutive cycles) and electrocatalysis (oxygen reduction reactions having comparable “diffusion-limited-current density” behaviour with that of the commercial Pt/C catalyst). The enhanced performance of catalysts in transforming chemicals, degrading organic pollutant species and producing sustainable energy resources from air oxygen can mitigate the challenges faced in environmental and energy crises, respectively. © 2021 The Authors

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

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

Journal of Colloid and Interface Science

ISSN

0021-9797

e-ISSN

—

Svazek periodika

610

Číslo periodika v rámci svazku

march

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

258-270

Kód UT WoS článku

000750147400012

EID výsledku v databázi Scopus

2-s2.0-85121116128