O- spin bags formation in (CeO2)0.57(La2CuO4)0.25 catalyst after extended use for reduction of NO by CO

被引：3

作者：

Oliva, C ^{[1
]}

Forni, L

Vishniakov, AV

机构：

[1] Univ Milan, Dipartimento Chim Fis & Elettrochim, Milan, Italy

[2] CNR, CSRSRC, I-20133 Milan, Italy

[3] DI Mendeleev Univ Chem Technol Russia, Moscow, Russia

来源：

APPLIED MAGNETIC RESONANCE | 1998年 / 14卷 / 2-3期

关键词：

D O I：

10.1007/BF03161895

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

(CeO2)(1-y)(La2CuO4)(y) with y = 0.25 and 0.43 have been analyzed by EPR after an extended-time-on-stream run at 450 degrees C, employing them as catalysts for the title reaction. Some unusual EPR low-field features have been observed, attributed to the formation of O- spin bags at low temperature.

引用

页码：283 / 292

页数：10

共 26 条

[1]

ABOUKAIS A, 1991, J CHEM SOC FARADAY T, V87, P631

[2]

ABRAGAM A, 1986, ELECT PARAMAGNETIC R, P819

[3] MAGNETIC AND EPR SPECTROSCOPIC INVESTIGATIONS ON A FERROMAGNETIC COUPLED TRINUCLEAR CU(II) COMPLEX [J].

FLEISCHHAUER, P ;

GEHRING, S ;

HAASE, W .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1992, 96 (11) :1701-1704

[4] STRUCTURAL-ANALYSIS OF SOME ALKALINE-EARTH-METAL-COPPER OXIDE CATALYSTS FOR HYDROCARBON OXIDATION OR NO DECOMPOSITION [J].

FORNI, L ;

OLIVA, C ;

VATTI, FP ;

SINITSINA, NA ;

SOROCHKIN, SV ;

MOEV, AV ;

VISHNIAKOV, AV .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1992, 88 (07) :1041-1048

[5]

FORNI L, 1993, RUSS J PHYS CHEM, V67, P1436

[6]

HASS KC, 1989, SOLID STATE PHYS, V42, P213

[7]

HASS KH, 1989, SOLID STATE PHYS, V42, P237

[8] THEORY OF ANTIFERROMAGNETIC RESONANCE [J].

KITTEL, C .

PHYSICAL REVIEW, 1951, 82 (04) :565-565

[9] ON THE GYROMAGNETIC RATIO AND SPECTROSCOPIC SPLITTING FACTOR OF FERROMAGNETIC SUBSTANCES [J].

KITTEL, C .

PHYSICAL REVIEW, 1949, 76 (06) :743-748

[10]

KITTEL C, 1967, INTRO SOLID STATE PH, P461

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