Nano-Ru Supported on Ni Nanowires for Low-Temperature Carbon Dioxide Methanation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F20%3A50017093" target="_blank" >RIV/62690094:18470/20:50017093 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2073-4344/10/5/513/pdf" target="_blank" >https://www.mdpi.com/2073-4344/10/5/513/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/catal10050513" target="_blank" >10.3390/catal10050513</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nano-Ru Supported on Ni Nanowires for Low-Temperature Carbon Dioxide Methanation

Popis výsledku v původním jazyce

In this study, we investigated the catalytic performance of Ru nanoparticles (NPs) supported on Ni-nanowires for the first time. This appears to be a highly efficient catalyst for low-temperature methanation, e.g., ca. 100% conversion and 100% of CH(4)selectivity can be achieved at ca. 179 degrees C, while the turnover frequency (TOF) value was 2479.2 h(-1). At the same time, the onset of a reaction was observed at a temperature as low as 130 degrees C. The comparison of nano-Pd and nano-Ru supported on Ni-nanowires enabled us to prove that oxidized surface metals are highly important for the high activity of the investigated nano-Ru@nanowired-Ni. Moreover, similar to the microscopic Sabatier rule, which indicates that some optimal reactivity level of a catalyst exists, we showed that Ni-nanowires (a higher specific surface area than a standard metal surface, e.g., in the form of a metal foam, but lower than nano-sized materials) significantly enhances the performance of the Ru-Ni catalytic system.

Název v anglickém jazyce

Nano-Ru Supported on Ni Nanowires for Low-Temperature Carbon Dioxide Methanation

Popis výsledku anglicky

In this study, we investigated the catalytic performance of Ru nanoparticles (NPs) supported on Ni-nanowires for the first time. This appears to be a highly efficient catalyst for low-temperature methanation, e.g., ca. 100% conversion and 100% of CH(4)selectivity can be achieved at ca. 179 degrees C, while the turnover frequency (TOF) value was 2479.2 h(-1). At the same time, the onset of a reaction was observed at a temperature as low as 130 degrees C. The comparison of nano-Pd and nano-Ru supported on Ni-nanowires enabled us to prove that oxidized surface metals are highly important for the high activity of the investigated nano-Ru@nanowired-Ni. Moreover, similar to the microscopic Sabatier rule, which indicates that some optimal reactivity level of a catalyst exists, we showed that Ni-nanowires (a higher specific surface area than a standard metal surface, e.g., in the form of a metal foam, but lower than nano-sized materials) significantly enhances the performance of the Ru-Ni catalytic system.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

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

CATALYSTS

ISSN

2073-4344

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

"Article Number: 513"

Kód UT WoS článku

000546007000069

EID výsledku v databázi Scopus

2-s2.0-85084835739