Effect of different crystalline phase of ZnO/Cu nanocatalysts on cellulose pyrolysis conversion to specific chemical compounds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43916325" target="_blank" >RIV/60461373:22310/18:43916325 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/18:00329249

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s10570-018-1997-7" target="_blank" >https://link.springer.com/article/10.1007/s10570-018-1997-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10570-018-1997-7" target="_blank" >10.1007/s10570-018-1997-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of different crystalline phase of ZnO/Cu nanocatalysts on cellulose pyrolysis conversion to specific chemical compounds

Popis výsledku v původním jazyce

With an appropriate treatment, cellulose, as one of the main constituents of biomass, is a rich source of chemicals and fuels. Pyrolysis is a method whereby bio-oils can be formed at moderate temperatures and with the addition of a catalyst the composition of the bio-oil can be enhanced. Nanostructured ZnO is a mild catalyst for the pyrolysis of cellulose to bio-oils and with the addition of copper to the structure of ZnO the catalytic properties can be improved. The pyrolytic degradation of cellulose over ZnO/Cu doped nanocatalysts has been studied over the temperature range 400-800 A degrees C with calculation of kinetic parameters. The results showed that with ZnO/2% Cu and ZnO/7% Cu, which had been heat-treated at 1000 A degrees C, the yields significantly increased at 600 and 700 A degrees C and the main components were aldehydes. In contrast, ZnO/Cu nanocatalysts prepared at 200 A degrees C mostly generated ketones. The increasing amount of copper increased or decreased the content of some components at specific temperatures. The results demonstrated that ZnO/Cu nanocatalysts with different proportions of copper prepared and heat-treated at different temperatures affected the composition of the bio-oil.

Název v anglickém jazyce

Effect of different crystalline phase of ZnO/Cu nanocatalysts on cellulose pyrolysis conversion to specific chemical compounds

Popis výsledku anglicky

With an appropriate treatment, cellulose, as one of the main constituents of biomass, is a rich source of chemicals and fuels. Pyrolysis is a method whereby bio-oils can be formed at moderate temperatures and with the addition of a catalyst the composition of the bio-oil can be enhanced. Nanostructured ZnO is a mild catalyst for the pyrolysis of cellulose to bio-oils and with the addition of copper to the structure of ZnO the catalytic properties can be improved. The pyrolytic degradation of cellulose over ZnO/Cu doped nanocatalysts has been studied over the temperature range 400-800 A degrees C with calculation of kinetic parameters. The results showed that with ZnO/2% Cu and ZnO/7% Cu, which had been heat-treated at 1000 A degrees C, the yields significantly increased at 600 and 700 A degrees C and the main components were aldehydes. In contrast, ZnO/Cu nanocatalysts prepared at 200 A degrees C mostly generated ketones. The increasing amount of copper increased or decreased the content of some components at specific temperatures. The results demonstrated that ZnO/Cu nanocatalysts with different proportions of copper prepared and heat-treated at different temperatures affected the composition of the bio-oil.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Cellulose

ISSN

0969-0239

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

20

Strana od-do

5623-5642

Kód UT WoS článku

000444769300011

EID výsledku v databázi Scopus

—