The effect of Preparation Method on Metal-Support Interaction in Pd/L-Zeolite Catalysts

G. Larsen, G. L. Haller

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The method of preparation, ion exchange (IE) versus impregnation (IP), effects the final dispersion, acidity and sintering stability of L-zeolite supported catalysts. The origin of the dispersion effect appears to be in the shape and size of the PdO precursor formed upon calcination which is more elongated with respect to the zeolite channel and has a lower nearest neighbor oxide coordination number when IP is used. While acidity introduced into the L-zeolite before preparation does not appear to effect the initial dispersion, acidity introduced after reduction of the IE preparation stabilizes the Pd particles toward sintering in H2.

Original languageEnglish (US)
Pages (from-to)297-309
Number of pages13
JournalStudies in Surface Science and Catalysis
Volume75
Issue numberC
DOIs
StatePublished - Jan 1 1993

Fingerprint

Zeolites
Catalyst supports
Acidity
acidity
Metals
catalysts
Impregnation
preparation
Catalysts
Ion exchange
sintering
Sintering
metals
interactions
coordination number
Calcination
roasting
Oxides
ions
oxides

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

The effect of Preparation Method on Metal-Support Interaction in Pd/L-Zeolite Catalysts. / Larsen, G.; Haller, G. L.

In: Studies in Surface Science and Catalysis, Vol. 75, No. C, 01.01.1993, p. 297-309.

Research output: Contribution to journalArticle

@article{72a808fdae1443d0aeef9e33af379b52,
title = "The effect of Preparation Method on Metal-Support Interaction in Pd/L-Zeolite Catalysts",
abstract = "The method of preparation, ion exchange (IE) versus impregnation (IP), effects the final dispersion, acidity and sintering stability of L-zeolite supported catalysts. The origin of the dispersion effect appears to be in the shape and size of the PdO precursor formed upon calcination which is more elongated with respect to the zeolite channel and has a lower nearest neighbor oxide coordination number when IP is used. While acidity introduced into the L-zeolite before preparation does not appear to effect the initial dispersion, acidity introduced after reduction of the IE preparation stabilizes the Pd particles toward sintering in H2.",
author = "G. Larsen and Haller, {G. L.}",
year = "1993",
month = "1",
day = "1",
doi = "10.1016/S0167-2991(08)64018-5",
language = "English (US)",
volume = "75",
pages = "297--309",
journal = "Studies in Surface Science and Catalysis",
issn = "0167-2991",
publisher = "Elsevier BV",
number = "C",

}

TY - JOUR

T1 - The effect of Preparation Method on Metal-Support Interaction in Pd/L-Zeolite Catalysts

AU - Larsen, G.

AU - Haller, G. L.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - The method of preparation, ion exchange (IE) versus impregnation (IP), effects the final dispersion, acidity and sintering stability of L-zeolite supported catalysts. The origin of the dispersion effect appears to be in the shape and size of the PdO precursor formed upon calcination which is more elongated with respect to the zeolite channel and has a lower nearest neighbor oxide coordination number when IP is used. While acidity introduced into the L-zeolite before preparation does not appear to effect the initial dispersion, acidity introduced after reduction of the IE preparation stabilizes the Pd particles toward sintering in H2.

AB - The method of preparation, ion exchange (IE) versus impregnation (IP), effects the final dispersion, acidity and sintering stability of L-zeolite supported catalysts. The origin of the dispersion effect appears to be in the shape and size of the PdO precursor formed upon calcination which is more elongated with respect to the zeolite channel and has a lower nearest neighbor oxide coordination number when IP is used. While acidity introduced into the L-zeolite before preparation does not appear to effect the initial dispersion, acidity introduced after reduction of the IE preparation stabilizes the Pd particles toward sintering in H2.

UR - http://www.scopus.com/inward/record.url?scp=0008223455&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0008223455&partnerID=8YFLogxK

U2 - 10.1016/S0167-2991(08)64018-5

DO - 10.1016/S0167-2991(08)64018-5

M3 - Article

AN - SCOPUS:0008223455

VL - 75

SP - 297

EP - 309

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

SN - 0167-2991

IS - C

ER -