INFLUENCE OF OXIDATION PROCESS ON CU-0/NAY WITH DIFFERENT CU DISPERSION

被引：1

作者：

PIKUS, S

机构：

[1] Department of Crystallography, Institute of Chemistry UMCS, Lublin

来源：

ZEOLITES | 1991年 / 11卷 / 05期

关键词：

ZEOLITE; SAXS; COPPER;

D O I：

10.1016/S0144-2449(05)80116-2

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：

Oxidation of copper located inside and outside of zeolite grains was examined. Oxidation of small clusters of copper situated inside zeolite pores leads to the formation of Cu2+ ions coordinated with the zeolite structure. Oxidation of large crystallites of copper located outside the zeolite grains causes the appearance of a noncrystalline phase at lower temperatures, but crystalline CuO is formed at higher temperatures.

引用

页码：449 / 453

页数：5

共 12 条

[1] METHANOL FROM OXIDATION OF METHANE BY NITROUS-OXIDE OVER FEZSM5 CATALYSTS
ANDERSON, JR
TSAI, P
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1987, (19) : 1435 - 1436
[2] INFLUENCE OF CE-3+ AND PT-2+ IONS ON THE REDUCIBILITY AND DISPERSION OF CU IN COPPER-EXCHANGED Y-ZEOLITES
BARCICKA, A
PIKUS, S
[J]. ZEOLITES, 1987, 7 (01): : 35 - 37
[3] SPECTROSCOPIC INVESTIGATIONS ON SORPTION AND OXIDATION OF CARBON-MONOXIDE IN TRANSITION-METAL ION-EXCHANGED ZEOLITES-A - STUDIES ON COBALT, NICKEL AND COPPER FORMS
FORSTER, H
WITTEN, U
[J]. ZEOLITES, 1987, 7 (06): : 517 - 521
[4] REDOX BEHAVIOR OF TRANSITION-METAL IONS IN ZEOLITES .1. STUDY OF REVERSIBILITY OF HYDROGEN REDUCTION OF COPPER Y ZEOLITES
HERMAN, RG
LUNSFORD, JH
BEYER, H
JACOBS, PA
UYTTERHOEVEN, JB
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1975, 79 (22) : 2388 - 2394
[5] REDOX BEHAVIOR OF TRANSITION-METAL IONS IN ZEOLITES .5. METHOD OF QUANTITATIVE-DETERMINATION OF BIDISPERSE DISTRIBUTIONS OF METAL-PARTICLE SIZES IN ZEOLITES
JACOBS, PA
LINART, JP
NIJS, H
UYTTERHOEVEN, JB
BEYER, HK
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1977, 73 : 1745 - 1754
[6] UNUSUALLY HIGH AND STABLE CATALYTIC ACTIVITY OF CU/H-ZSM-5 IN METHANE OXIDATION - CORRELATION WITH COORDINATION STATE OF CU(II) CATIONS
KUCHEROV, AV
SLINKIN, AA
GORYASHENKO, SS
SLOVETSKAJA, KI
[J]. JOURNAL OF CATALYSIS, 1989, 118 (02) : 459 - 465
[7] COPPER-EXCHANGED ZEOLITE CATALYSTS FOR THE CYCLO-DIMERIZATION OF BUTADIENE .1. CATALYST STABILITY AND REGENERABILITY
MAXWELL, IE
DOWNING, RS
VANLANGEN, SAJ
[J]. JOURNAL OF CATALYSIS, 1980, 61 (02) : 485 - 492
[8] Mering J., 1968, Journal of Applied Crystallography, V1, P153, DOI 10.1107/S0021889868005212
[9] OXIDIZING AND ACIDIC PROPERTIES OF COPPER-EXCHANGE Y-ZEOLITE
NACCACHE, CM
BENTAARI.Y
[J]. JOURNAL OF CATALYSIS, 1971, 22 (02) : 171 - &
[10] STUDIES OF A CUY ZEOLITE AS A REDOX CATALYST
PETUNCHI, JO
HALL, WK
[J]. JOURNAL OF CATALYSIS, 1983, 80 (02) : 403 - 418

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