Specific interaction of bare Pd2+ with highly basic sites in calcined PdNaX

被引：1

作者：

Sauvage, A ^{[1
]}

deSouza, MO ^{[1
]}

Peltre, MJ ^{[1
]}

Massiani, P ^{[1
]}

Barthomeuf, D ^{[1
]}

机构：

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

来源：

CHEMICAL COMMUNICATIONS | 1996年 / 11期

关键词：

D O I：

10.1039/cc9960001325

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The interaction of bare Pd2+ ions with framework oxygen in PdNaX calcined at 500 degrees C results in an unusual Si-29 MAS NMR band at delta -79.5; line intensities indicate that bare Pd2+ ions are located preferentially close to highly basic sites exhibiting the Al richest environments; the strong Pd2+-framework interaction is reversibly released upon hydration/dehydration.

引用

页码：1325 / 1326

页数：2

共 19 条

[1] CONJUGATE ACID-BASE PAIRS IN ZEOLITES
BARTHOMEUF, D
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (01) : 42 - 45
[2] BARTHOMEUF D, 1996, IN PRESS CATAL REV
[3] X-RAY STUDY OF THE ACTIVATION, REDUCTION, AND REOXIDATION OF PALLADIUM IN Y-TYPE ZEOLITES
BERGERET, G
GALLEZOT, P
IMELIK, B
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1981, 85 (04) : 411 - 416
[4] SI-29 MAGIC ANGLE SPINNING NMR-SPECTRA OF ALKALI-METAL, ALKALINE-EARTH METAL, AND RARE-EARTH METAL-ION EXCHANGED Y-ZEOLITES
CHAO, KJ
CHERN, JY
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (04) : 1401 - 1404
[5] Engelhardt G., 1987, HIGH RESOLUTION SOLI
[6] GALLEZOT P, 1973, MOL SIEVES, P66
[7] SPECTROSCOPIC STUDY OF MIGRATION OF PD (II) IONS IN ZEOLITE DURING LIGAND ADSORPTIONS
GARBOWSKI, ED
[J]. JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1978, 75 (02) : 226 - 230
[8] INFLUENCE OF THE CATION DISTRIBUTION IN ZEOLITES ON THE ISOTROPIC SI-29 NMR CHEMICAL-SHIFT
GROBET, PJ
MORTIER, WJ
VANGENECHTEN, K
[J]. CHEMICAL PHYSICS LETTERS, 1985, 119 (04) : 361 - 364
[9] ELEMENTARY STEPS IN THE FORMATION OF HIGHLY DISPERSED PALLADIUM IN NAY .1. PD ION COORDINATION AND MIGRATION
HOMEYER, ST
SACHTLER, WMH
[J]. JOURNAL OF CATALYSIS, 1989, 117 (01) : 91 - 101
[10] MELCHIOR MT, 1983, P 6 INT ZEOL C

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