(Ni,Cu)/hexagonal BN nanohybrids - New efficient catalysts for methanol steam reforming and carbon monoxide oxidation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU140177" target="_blank" >RIV/00216305:26620/20:PU140177 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/20:00343447

Výsledek na webu

<a href="https://doi.org/10.1016/j.cej.2020.125109" target="_blank" >https://doi.org/10.1016/j.cej.2020.125109</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2020.125109" target="_blank" >10.1016/j.cej.2020.125109</a>

Jazyk výsledku

angličtina

Název v původním jazyce

(Ni,Cu)/hexagonal BN nanohybrids - New efficient catalysts for methanol steam reforming and carbon monoxide oxidation

Popis výsledku v původním jazyce

This work is aimed at the development of bimetallic (Ni0.2Cu0.8) catalysts with hexagonal boron nitride (h-BN) nanosheet (BNNS) supports and elucidating their catalytic activity in the methanol steam reforming and CO oxidation reactions. The hybrid Ni0.2Cu0.8/BN catalysts consist of curved h-BN nanosheets, up to 10-20 nm in lateral size, decorated with metallic nanoparticles, 3.0-8.2 nm in dimensions. The methanol conversion starts at similar to 20 degrees C and is nearly completed at 320 degrees C. The (Ni0.2Cu0.8)/BN nanohybrids exhibit high catalytic stability and high selectivity for CO2 over the whole temperature range. No carbon monoxide is detected during full methanol conversion. The possible mechanism of CO utilization during methanol reforming is proposed using ab initio calculations. The onset temperature of catalytic CO oxidation is 100 degrees C and full conversion is completed at 200 degrees C. These results indicate high catalytic efficiency of (Ni0.2Cu0.8)/BN nanohybrids in methanol steam reforming and CO oxidation reactions.

Název v anglickém jazyce

(Ni,Cu)/hexagonal BN nanohybrids - New efficient catalysts for methanol steam reforming and carbon monoxide oxidation

Popis výsledku anglicky

This work is aimed at the development of bimetallic (Ni0.2Cu0.8) catalysts with hexagonal boron nitride (h-BN) nanosheet (BNNS) supports and elucidating their catalytic activity in the methanol steam reforming and CO oxidation reactions. The hybrid Ni0.2Cu0.8/BN catalysts consist of curved h-BN nanosheets, up to 10-20 nm in lateral size, decorated with metallic nanoparticles, 3.0-8.2 nm in dimensions. The methanol conversion starts at similar to 20 degrees C and is nearly completed at 320 degrees C. The (Ni0.2Cu0.8)/BN nanohybrids exhibit high catalytic stability and high selectivity for CO2 over the whole temperature range. No carbon monoxide is detected during full methanol conversion. The possible mechanism of CO utilization during methanol reforming is proposed using ab initio calculations. The onset temperature of catalytic CO oxidation is 100 degrees C and full conversion is completed at 200 degrees C. These results indicate high catalytic efficiency of (Ni0.2Cu0.8)/BN nanohybrids in methanol steam reforming and CO oxidation reactions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/EF16_026%2F0008396" target="_blank" >EF16_026/0008396: Nové nanostruktury pro inženýrské aplikace umožněné kombinací moderních technologií a pokročilých simulací</a><br>

Návaznosti

—

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

CHEMICAL ENGINEERING JOURNAL

ISSN

1385-8947

e-ISSN

1873-3212

Svazek periodika

395

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

„125109-1“-„125109-11“

Kód UT WoS článku

000543780700005

EID výsledku v databázi Scopus

—