NDLI: Adsorption of chlorobenzenes on ultrafine diamond modified with palladium and nickel nanoparticles

Content Provider	Springer Nature Link
Author	Lanin, S. N. Bannykh, A. A. Kovaleva, N. V.
Copyright Year	2013
Abstract	Dynamic sorption is used to study the adsorption properties of palladium and nickel nanoparticles immobilized on a surface of ultrafine diamond (UFD). The test adsorbates are n-alkanes (C$_{6}$-C$_{8}$), benzene, chloroform, diethyl ether, chlorobenzene, and o-dichlorobenzene. For each adsorbate, the adsorption isotherms are measured, the isosteric heats of adsorption and contributions to them from the energies of dispersion Q $_{disp}$ and specific (donor-acceptor) Q $_{spec}$ interactions are calculated, and the electron-donor and electron-acceptor characteristics of the surface of the original UFD and the UFDs with immobilized metal nanoparticles are estimated. It is shown that chlorobenzene is sorbed by the physical adsorption mechanisms on the original support and on a sample modified with nickel nanoparticles, and is chemisorbed on a support modified with palladium nanoparticles. The highest heats of chemisorption are obtained on UFD modified with Pd nanoclusters; a surface of UFD modified with Ni nanoclusters is less active with respect to these chlorobenzenes than a surface of unmodified UFD. Benzene, chloroform, and diethyl ether are sorbed on unmodified and modified UFDs by a physical adsorption mechanism; the highest and lowest values of Q $_{spec}$ for these materials are obtained on UFDs modified with Pd and Ni nanoclusters, respectively.
Starting Page	1550
Ending Page	1555
Page Count	6
File Format	PDF
ISSN	00360244
Journal	Russian Journal of Physical Chemistry
Volume Number	87
Issue Number	9
e-ISSN	1531863X
Language	English
Publisher	Springer US
Publisher Date	2013-08-08
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	adsorption dynamical sorption method nanoparticles palladium nickel diamond electron-donor and electron-acceptor characteristics Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry

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