Unification of Ru and carbon support in catalytic aqueous 1,6-hexanediol amination

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F25%3A73630850" target="_blank" >RIV/61989592:15640/25:73630850 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/25:10258062

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2468823125002160?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2468823125002160?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.mcat.2025.115030" target="_blank" >10.1016/j.mcat.2025.115030</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unification of Ru and carbon support in catalytic aqueous 1,6-hexanediol amination

Popis výsledku v původním jazyce

The aqueous-phase reductive amination of 1,6-hexanediol (HDO) to amines is reported in the presence of Ru supported over various carbon materials with efficient product selectivity even under mild conditions (463 K, 25 bar H2). Activated carbon with an optimal balance of amorphous and graphitic configurations proved to be an outstanding support for achieving the highest selectivity towards total amines. Furthermore, adding Ba(OH)2 in the Ru supported on different carbon materials notably improved the conversion of HDO and boosted the selectivity towards amines by around 1.3 times. This enhancement led to impressive yields, with hexamethylenediamine (HMDA) reaching up to 29%, azepane at 24%, and 6-amino-1-hexanol (AH) at 15% when using Rusupported on activated carbon. A detailed examination and control experiments demonstrated the significance of the synergistic relationship between graphitic and amorphous sites within carbon materials, resulting in enhanced selectivity towards amination. Increasing the alkyl chain length of mono alcohols consistently produced higher yields with longer carbon chains, thus suggesting the crucial role of alkyl chain adsorption on amorphous carbon material in the HDO amination process, with Ru acting as the pivotal active site.

Název v anglickém jazyce

Unification of Ru and carbon support in catalytic aqueous 1,6-hexanediol amination

Popis výsledku anglicky

The aqueous-phase reductive amination of 1,6-hexanediol (HDO) to amines is reported in the presence of Ru supported over various carbon materials with efficient product selectivity even under mild conditions (463 K, 25 bar H2). Activated carbon with an optimal balance of amorphous and graphitic configurations proved to be an outstanding support for achieving the highest selectivity towards total amines. Furthermore, adding Ba(OH)2 in the Ru supported on different carbon materials notably improved the conversion of HDO and boosted the selectivity towards amines by around 1.3 times. This enhancement led to impressive yields, with hexamethylenediamine (HMDA) reaching up to 29%, azepane at 24%, and 6-amino-1-hexanol (AH) at 15% when using Rusupported on activated carbon. A detailed examination and control experiments demonstrated the significance of the synergistic relationship between graphitic and amorphous sites within carbon materials, resulting in enhanced selectivity towards amination. Increasing the alkyl chain length of mono alcohols consistently produced higher yields with longer carbon chains, thus suggesting the crucial role of alkyl chain adsorption on amorphous carbon material in the HDO amination process, with Ru acting as the pivotal active site.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/EH22_008%2F0004587" target="_blank" >EH22_008/0004587: Technologie za hranicí nanosvěta</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Molecular Catalysis

ISSN

2468-8231

e-ISSN

—

Svazek periodika

578

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

nestránkováno

Kód UT WoS článku

001467623200001

EID výsledku v databázi Scopus

2-s2.0-105000292023