The influence of acid treatment of carbon nanofibers on the activity of palladium catalysts in the liquid-phase hydrodechlorination of dichlorobenzene

Autor:	G.V. Oderova, E.S. Tayban, G.G. Kuvshinov, O. V. Netskina, S.A. Mukha, O.V. Komova, V.I. Simagina
Rok vydání:	2013
Předmět:	inorganic chemicals Carbon nanofiber Process Chemistry and Technology Inorganic chemistry chemistry.chemical_element Catalysis Dichlorobenzene Adsorption chemistry Specific surface area Titration Dispersion (chemistry) Nuclear chemistry Palladium
Zdroj:	Applied Catalysis A: General. 467:386-393
ISSN:	0926-860X
Popis:	Palladium catalysts on the basis of acid treated carbon nanofibers (CNF) were studied. Using physico-chemical methods of investigation (low-temperature nitrogen adsorption–desorption, FTIR spectroscopy and Boehm titration) it has been shown that under the action of HCl and HNO 3 there take place a reduction in the specific surface area and the volume of pores and an increase of the concentration of surface functional groups. This has a substantial influence on the adsorptive properties of CNF, the dispersion of palladium and the catalytic activity in the liquid-phase hydrodechlorination of 1,2-dichlorobenzene. The reaction rate was observed to be the highest in the presence of Pd/CNF-HCl. Treatment of CNF by HCl gives the highest dispersion of palladium on the external surface of CNF. There is also an increase in the adsorption capacity for 1,2-dichlorobenzene and a decreased adsorption of the solvents on the surface of the acid-modified CNF.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57155bf82ca2c42f321d5950b72881c5 https://doi.org/10.1016/j.apcata.2013.07.046 Zobrazit plný text záznamu Full Text from ScienceDirect