SOLID-STATE LA-139 NMR INVESTIGATION OF LANTHANUM-EXCHANGED Y-ZEOLITES

被引：40

作者：

HERREROS, B ^{[1
]}

MAN, PP ^{[1
]}

MANOLI, JM ^{[1
]}

FRAISSARD, J ^{[1
]}

机构：

[1] UNIV PARIS 06,REACT SURFACES & STRUCT LAB,CNRS,URA 1106,F-75252 PARIS 05,FRANCE

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1992年 / 06期

关键词：

D O I：

10.1039/c39920000464

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The line shape of solid-state La-139 NMR spectra is sensitive to the local symmetry of the La ion sites: investigation of calcined La-exchanged Y zeolites reveals sharp and broad signals corresponding to La ions located in supercages and in small cages, respectively.

引用

页码：464 / 466

页数：3

共 17 条

[1] THE ROLE OF POLYVALENT CATIONS IN DEVELOPING STRONG ACIDITY - A STUDY OF LANTHANUM-EXCHANGED ZEOLITES [J].

CARVAJAL, R ;

CHU, PJ ;

LUNSFORD, JH .

JOURNAL OF CATALYSIS, 1990, 125 (01) :123-131

[2] THE DIRECT OBSERVATION OF CATION HYDROLYSIS IN LANTHANUM ZEOLITE-Y BY NEUTRON-DIFFRACTION [J].

CHEETHAM, AK ;

EDDY, MM ;

THOMAS, JM .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1984, (20) :1337-1338

[3] XE-129-NMR STUDY OF RARE EARTH-EXCHANGED Y-ZEOLITES [J].

CHEN, QJ ;

ITO, T ;

FRAISSARD, J .

ZEOLITES, 1991, 11 (03) :239-243

[4] A HIGH-RESOLUTION NMR-STUDY OF THE LA-SI-AL-O-N SYSTEM [J].

DUPREE, R ;

LEWIS, MH ;

SMITH, ME .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (14) :5125-5132

[5] MEASUREMENT OF CRYSTAL FIELD GRADIENT AT NUCLEUS OF 3 LANTHANUM SALTS [J].

EDMONDS, DT .

PHYSICAL REVIEW LETTERS, 1963, 10 (04) :129-&

[6] NMR LINE SHIFTS CAUSED BY THE 2ND-ORDER QUADRUPOLAR INTERACTION [J].

FREUDE, D ;

HAASE, J ;

KLINOWSKI, J ;

CARPENTER, TA ;

RONIKIER, G .

CHEMICAL PHYSICS LETTERS, 1985, 119 (04) :365-367

[7] NUCLEAR MAGNETIC-RESONANCE STUDIES OF ZEOLITES [J].

KLINOWSKI, J .

PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, 1984, 16 :237-309

[8] SOLID-STATE SPIN-ECHO FOURIER-TRANSFORM NMR OF K-39 AND ZN-67 SALTS AT HIGH-FIELD [J].

KUNWAR, AC ;

TURNER, GL ;

OLDFIELD, E .

JOURNAL OF MAGNETIC RESONANCE, 1986, 69 (01) :124-127

[9] DEHYDROXYLATION OF LANTHANUM EXCHANGED ZEOLITE-Y [J].

LEE, EFT ;

REES, LVC .

ZEOLITES, 1987, 7 (06) :545-548

[10] LA-138 AND LA-139 NUCLEAR MAGNETIC-RESONANCE STUDIES [J].

LUTZ, O ;

OEHLER, H .

JOURNAL OF MAGNETIC RESONANCE, 1980, 37 (02) :261-267

← 1 2 →