The influence of modifying additions of La and Ce oxides on electronic state of surface atoms and ions of supported copper

A. N. Pestryakov, A. A. Davydov

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The electronic state of surface of supported copper in modified copper catalysts has been tested by the methods of IR-spectroscopy of adsorbed CO, X-ray diffraction analysis and electron microscopy. The modifying additions of cerium oxide stabilize the ionic state of copper, while lanthanum oxide decreases the effective charge of Cu+ ions. The observed effects are caused by variation in metal dispersivity in the modified samples and by electron donor-acceptor interaction of the surface atoms and ions of copper with the modifier.

Original languageEnglish
Pages (from-to)479-483
Number of pages5
JournalApplied Surface Science
Volume103
Issue number4
DOIs
Publication statusPublished - Dec 1996

Fingerprint

Electronic states
Oxides
Copper
Ions
copper
Atoms
oxides
electronics
Lanthanum oxides
lanthanum oxides
atoms
cerium oxides
ions
Copper oxides
copper oxides
Cerium
Carbon Monoxide
X ray diffraction analysis
Electron microscopy
Infrared spectroscopy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics

Cite this

The influence of modifying additions of La and Ce oxides on electronic state of surface atoms and ions of supported copper. / Pestryakov, A. N.; Davydov, A. A.

In: Applied Surface Science, Vol. 103, No. 4, 12.1996, p. 479-483.

Research output: Contribution to journalArticle

@article{1b1018230ca44b229ac89303b736c11d,
title = "The influence of modifying additions of La and Ce oxides on electronic state of surface atoms and ions of supported copper",
abstract = "The electronic state of surface of supported copper in modified copper catalysts has been tested by the methods of IR-spectroscopy of adsorbed CO, X-ray diffraction analysis and electron microscopy. The modifying additions of cerium oxide stabilize the ionic state of copper, while lanthanum oxide decreases the effective charge of Cu+ ions. The observed effects are caused by variation in metal dispersivity in the modified samples and by electron donor-acceptor interaction of the surface atoms and ions of copper with the modifier.",
author = "Pestryakov, {A. N.} and Davydov, {A. A.}",
year = "1996",
month = "12",
doi = "10.1016/S0169-4332(96)00533-8",
language = "English",
volume = "103",
pages = "479--483",
journal = "Applied Surface Science",
issn = "0169-4332",
publisher = "Elsevier",
number = "4",

}

TY - JOUR

T1 - The influence of modifying additions of La and Ce oxides on electronic state of surface atoms and ions of supported copper

AU - Pestryakov, A. N.

AU - Davydov, A. A.

PY - 1996/12

Y1 - 1996/12

N2 - The electronic state of surface of supported copper in modified copper catalysts has been tested by the methods of IR-spectroscopy of adsorbed CO, X-ray diffraction analysis and electron microscopy. The modifying additions of cerium oxide stabilize the ionic state of copper, while lanthanum oxide decreases the effective charge of Cu+ ions. The observed effects are caused by variation in metal dispersivity in the modified samples and by electron donor-acceptor interaction of the surface atoms and ions of copper with the modifier.

AB - The electronic state of surface of supported copper in modified copper catalysts has been tested by the methods of IR-spectroscopy of adsorbed CO, X-ray diffraction analysis and electron microscopy. The modifying additions of cerium oxide stabilize the ionic state of copper, while lanthanum oxide decreases the effective charge of Cu+ ions. The observed effects are caused by variation in metal dispersivity in the modified samples and by electron donor-acceptor interaction of the surface atoms and ions of copper with the modifier.

UR - http://www.scopus.com/inward/record.url?scp=0030407708&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030407708&partnerID=8YFLogxK

U2 - 10.1016/S0169-4332(96)00533-8

DO - 10.1016/S0169-4332(96)00533-8

M3 - Article

AN - SCOPUS:0030407708

VL - 103

SP - 479

EP - 483

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

IS - 4

ER -