Redox behaviour of copper(II) species on CuCe oxide catalysts: Electron paramagnetic resonance (EPR) study

被引：44

作者：

Aboukais, A ^{[1
]}

Bennani, A ^{[1
]}

LamonierDulongpont, C ^{[1
]}

AbiAad, E ^{[1
]}

Wrobel, G ^{[1
]}

机构：

[1] UNIV SCI & TECH LILLE FLANDRES ARTOIS,URA CNRS 402,CATALYSE HETEROGENE & HOMOGENE LAB,F-59655 VILLENEUVE DASCQ,FRANCE

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1996年 / 115卷

关键词：

CuCe oxide catalysts; electron paramagnetic resonance; redox behaviour; copper(II) species;

D O I：

10.1016/0927-7757(96)03655-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electron paramagnetic resonance (EPR) has been used to study the effect of hear treatment under air or hydrogen on the behaviour of CuCe oxide catalysts. Monomers, dimers and clusters of Cu2+ ions have been detected in CeO2 after different calcination temperatures. Monomers and dimers are located in specific and similar sites of the ceria lattice in place of Ce4+ ions. When two Cu2+ ions are situated at a distance of 3.6 +/- 0.3 Angstrom and bridged by an oxygen, the dimer signal is formed. The reduction of dimers by hydrogen gives monomers in a first step and these transform into Cu+ or Cu-0 species in a second step.

引用

页码：171 / 177

页数：7

共 50 条

[41] Direct identification of Cu(II) species adsorbed on rosin-derived resins using electron paramagnetic resonance (EPR) spectroscopy
Liu, Shaogang
Li, Zhangyan
Diao, Kaisheng
Huang, Wanting
Wang, Jue
Deng, Wen
Lei, Fuhou
Goodman, Bernard A.
[J]. CHEMOSPHERE, 2018, 210 : 789 - 794
[42] DEFECT CENTERS IN BERYLLIUM-OXIDE CERAMICS STUDIED BY ELECTRON-PARAMAGNETIC RESONANCE (EPR)
MILSCH, B
KERBE, F
MICHALOWSKY, L
[J]. CERAMICS INTERNATIONAL, 1990, 16 (05) : 311 - 318
[43] Electron paramagnetic resonance study of gadoliniumum doped graphene oxide
Abaszade, R. G.
Mammadov, A. G.
Khanmammadova, E. A.
Bayramov, I. Y.
Namazov, R. A.
Popal, Kh. M.
Melikova, S. Z.
Qasimov, R. C.
Bayramov, M. A.
Babayeva, N. I.
[J]. JOURNAL OF OVONIC RESEARCH, 2023, 19 (03): : 259 - 263
[44] AN ELECTRON PARAMAGNETIC RESONANCE STUDY OF SURFACE DEFECTS ON MAGNESIUM OXIDE
LUNSFORD, JH
JAYNE, JP
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1966, 70 (11): : 3464 - &
[45] AN ELECTRON PARAMAGNETIC RESONANCE STUDY OF NITRIC OXIDE HEMOGLOBIN DERIVATIVES
SHIGA, T
HWANG, KJ
TYUMA, I
[J]. ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1968, 123 (01) : 203 - &
[46] Electron Paramagnetic Resonance Study of Copper(II)Dimethylglyoxime. Theoretical and Experimental Study of the Effect of Axial Ligands
Falk, Karl-Erik
Ivanova, Elena
Roos, Bjorn
Vanngard, Tore
[J]. INORGANIC CHEMISTRY, 1970, 9 (03) : 556 - 562
[47] ELECTRON-PARAMAGNETIC RESONANCE STUDIES OF SOME TERNARY OXIDES OF COPPER(II)
GANGULY, P
SREEDHAR, K
RAJU, AR
DEMAZEAU, G
HAGENMULLER, P
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (01) : 213 - 226
[48] ELECTRON-PARAMAGNETIC RESONANCE OF SURFACE COPPER(II) COMPLEXES ON MODIFIED SILICA
SOLOZHENKIN, PM
SEMIKOPNYI, AI
SHARF, VZ
LISICHKIN, GV
[J]. ZHURNAL FIZICHESKOI KHIMII, 1988, 62 (02): : 477 - 480
[49] INTERACTION OF COPPER(II) CHELATES WITH CHLOROFORM AS OBSERVED IN ELECTRON PARAMAGNETIC RESONANCE SPECTRA
WISNIEWSKI, MD
WAYLAND, BB
[J]. JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1971, (17): : 2727 - +
[50] ELECTRONIC ABSORPTION SPECTRA AND ELECTRON PARAMAGNETIC RESONANCE OF COPPER(II)-AMINE COMPLEXES
ALEXANDER, MD
HARRINGTON, PC
VANHEUVE.A
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1971, 75 (21): : 3355 - +

← 1 2 3 4 5 →