Dioxygen dissociation over man-made system at room temperature to form the active α-oxygen for methane oxidation

Kód výsledku v IS VaVaI

RIV/61388955:_____/20:00524418 - isvavai.cz

Výsledek na webu

http://hdl.handle.net/11104/0308778

DOI - Digital Object Identifier

10.1126/sciadv.aaz9776

Jazyk výsledku

angličtina

Název v původním jazyce

Dioxygen dissociation over man-made system at room temperature to form the active α-oxygen for methane oxidation

Popis výsledku v původním jazyce

Activation of dioxygen attracts enormous attention due to its potential for utilization of methane and applicationsnin other selective oxidation reactions. We report a cleavage of dioxygen at room temperature over distant binuclearnFe(II) species stabilized in an aluminosilicate matrix. A pair of formed distant -oxygen species [i.e., (Fe(IV)═O)2+]nexhibits unique oxidation properties reflected in an outstanding activity in the oxidation of methane to methanolnat room temperature. Designing a man-made system that mimicks the enzyme functionality in the dioxygen activationnusing both a different mechanism and structure of the active site represents a breakthrough in catalysis.nOur system has an enormous practical importance as a potential industrial catalyst for methane utilization becausen(i) the Fe(II)/Fe(IV) cycle is reversible, (ii) the active Fe centers are stable under the reaction conditions, and (iii)nmethanol can be released to gas phase without the necessity of water or water-organic medium extraction.

Název v anglickém jazyce

Dioxygen dissociation over man-made system at room temperature to form the active α-oxygen for methane oxidation

Popis výsledku anglicky

Activation of dioxygen attracts enormous attention due to its potential for utilization of methane and applicationsnin other selective oxidation reactions. We report a cleavage of dioxygen at room temperature over distant binuclearnFe(II) species stabilized in an aluminosilicate matrix. A pair of formed distant -oxygen species [i.e., (Fe(IV)═O)2+]nexhibits unique oxidation properties reflected in an outstanding activity in the oxidation of methane to methanolnat room temperature. Designing a man-made system that mimicks the enzyme functionality in the dioxygen activationnusing both a different mechanism and structure of the active site represents a breakthrough in catalysis.nOur system has an enormous practical importance as a potential industrial catalyst for methane utilization becausen(i) the Fe(II)/Fe(IV) cycle is reversible, (ii) the active Fe centers are stable under the reaction conditions, and (iii)nmethanol can be released to gas phase without the necessity of water or water-organic medium extraction.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

GA17-00742S: Binukleární struktury iontů v zeolitech

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Science Advances

ISSN

2375-2548

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

eaa9776

Kód UT WoS článku

000533573300033

EID výsledku v databázi Scopus

2-s2.0-85084786355