Probing the onset of crystallization of a microporous catalyst by combined X-ray absorption spectroscopy and X-ray diffraction

被引：65

作者：

Sankar, G ^{[1
]}

Thomas, JM ^{[1
]}

Rey, F ^{[1
]}

Greaves, GN ^{[1
]}

机构：

[1] CCLRC, DARESBURY LAB, WARRINGTON WA4 4AD, CHESHIRE, ENGLAND

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1995年 / 24期

关键词：

D O I：

10.1039/c39950002549

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The power of a new variant of the in situ combined XRA-XRD experiment (see ref. 12) is illustrated by tracking the inner shell environment and bonding of a Co-II ion as it changes, in the gel just prior to crystallisation, from octahedral to tetrahedral coordination, the state in which it finally appears in the microporous catalyst CoAIPO-5: the technique is widely applicable.

引用

页码：2549 / 2550

页数：2

共 23 条

[1] THE PORE-SIZE MODIFICATION OF A LAYERED ALUMINOPHOSPHATE [AL3P4O16C9H24N3] BY RATIONAL SELECTION OF THE INTERCALATED TEMPLATE CATION [J].

BARRETT, PA ;

JONES, RH .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1995, (19) :1979-1981

[2]

BELL RG, 1994, STUD SURF SCI CATAL, V84, P2075

[3]

BRIOIS V, 1989, J CHIM PHYS PCB, V86, P1632

[4] AN ABSORPTION-EDGE AND EXTENDED X-RAY ABSORPTION FINE-STRUCTURE STUDY OF A DISPERSED MANGANESE-DIOXIDE OXIDATION CATALYST [J].

BROWN, NMD ;

MCMONAGLE, JB ;

GREAVES, GN .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1984, 80 :589-597

[5] A COMBINED QEXAFS XRD METHOD FOR ONLINE, IN-SITU STUDIES OF CATALYSTS - EXAMPLES OF DYNAMIC MEASUREMENTS OF CU-BASED METHANOL CATALYSTS [J].

CLAUSEN, BS ;

GRABAEK, L ;

STEFFENSEN, G ;

HANSEN, PL ;

TOPSOE, H .

CATALYSIS LETTERS, 1993, 20 (1-2) :23-36

[6] TRACING THE CONVERSION OF AURICHALCITE TO A COPPER CATALYST BY COMBINED X-RAY ABSORPTION AND DIFFRACTION [J].

COUVES, JW ;

THOMAS, JM ;

WALLER, D ;

JONES, RH ;

DENT, AJ ;

DERBYSHIRE, GE ;

GREAVES, GN .

NATURE, 1991, 354 (6353) :465-468

[7] NEW VISTAS IN ZEOLITE AND MOLECULAR-SIEVE CATALYSIS [J].

DAVIS, ME .

ACCOUNTS OF CHEMICAL RESEARCH, 1993, 26 (03) :111-115

[8] AN APPARATUS FOR THE STUDY OF THE KINETICS AND MECHANISM OF HYDROTHERMAL REACTIONS BY IN-SITU ENERGY-DISPERSIVE X-RAY-DIFFRACTION [J].

EVANS, JSO ;

FRANCIS, RJ ;

OHARE, D ;

PRICE, SJ ;

CLARK, SM ;

FLAHERTY, J ;

GORDON, J ;

NIELD, A ;

TANG, CC .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1995, 66 (03) :2442-2445

[9]

LENGLET M, 1988, ANN CHIM-SCI MAT, V13, P505

[10] PREDICTING THE TEMPLATING ABILITY OF ORGANIC ADDITIVES FOR THE SYNTHESIS OF MICROPOROUS MATERIALS [J].

LEWIS, DW ;

FREEMAN, CM ;

CATLOW, CRA .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (28) :11194-11202

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