Platinum-Nickel/L-zeolite Bimetallic Catalysts: Effect of Sulfur Exposure on Metal Particle Size and n-Hexane Aromatization Activity and Selectivity

Gustavo Larsen; Daniel E. Resasco; Vincent A. Durante; Jae Kim; Gary L. Haller

doi:10.1016/S0167-2991(08)63272-3

Platinum-Nickel/L-zeolite Bimetallic Catalysts: Effect of Sulfur Exposure on Metal Particle Size and n-Hexane Aromatization Activity and Selectivity

Gustavo Larsen, Daniel E. Resasco, Vincent A. Durante, Jae Kim, Gary L. Haller

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Experimental evidence that Ni can be used to stablizie Pt particles supported in L-zeolite against deactivation by sulfur is presented. A series of Pt-Ni/L-zeolite bimetallic catalysts prepared by co-impregnation were tested for n-hexane aromatization and characterized by Extended X-ray Absorption Fine Structure (EXAFS), hydrogen chemisorption and Transmission Electron Microscopy (TEM) before and after sulfiding. It was found that bimetallic particles are significantly less subject of sulfur-induced particle growth than their monometallic (pt) counterpart. This mechanism of catalyst fouling is known to cause deterioration of Pt/L aromatization catalysts.

Original language	English (US)
Pages (from-to)	321-329
Number of pages	9
Journal	Studies in Surface Science and Catalysis
Volume	83
Issue number	C
DOIs	https://doi.org/10.1016/S0167-2991(08)63272-3
State	Published - Jan 1 1994
Externally published	Yes

ASJC Scopus subject areas

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

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@article{f3257bb3021b449a94dfc95f14ed7e9b,

title = "Platinum-Nickel/L-zeolite Bimetallic Catalysts: Effect of Sulfur Exposure on Metal Particle Size and n-Hexane Aromatization Activity and Selectivity",

abstract = "Experimental evidence that Ni can be used to stablizie Pt particles supported in L-zeolite against deactivation by sulfur is presented. A series of Pt-Ni/L-zeolite bimetallic catalysts prepared by co-impregnation were tested for n-hexane aromatization and characterized by Extended X-ray Absorption Fine Structure (EXAFS), hydrogen chemisorption and Transmission Electron Microscopy (TEM) before and after sulfiding. It was found that bimetallic particles are significantly less subject of sulfur-induced particle growth than their monometallic (pt) counterpart. This mechanism of catalyst fouling is known to cause deterioration of Pt/L aromatization catalysts.",

author = "Gustavo Larsen and Resasco, {Daniel E.} and Durante, {Vincent A.} and Jae Kim and Haller, {Gary L.}",

note = "Funding Information: ACKNOWLEDGMENTS This research was supported by DOE, Office of Basic Energy Sciences. Partial support from Sun Co. is also acknowledged. W e wish to thank the NSLS for beam time, Tosoh Corp., Japan, for samples of KL-zeolite and NSF for initiating work on PtL-zeolite catalysts.",

year = "1994",

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day = "1",

doi = "10.1016/S0167-2991(08)63272-3",

language = "English (US)",

volume = "83",

pages = "321--329",

journal = "Studies in Surface Science and Catalysis",

issn = "0167-2991",

publisher = "Elsevier Inc.",

number = "C",

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TY - JOUR

T1 - Platinum-Nickel/L-zeolite Bimetallic Catalysts

T2 - Effect of Sulfur Exposure on Metal Particle Size and n-Hexane Aromatization Activity and Selectivity

AU - Larsen, Gustavo

AU - Resasco, Daniel E.

AU - Durante, Vincent A.

AU - Kim, Jae

AU - Haller, Gary L.

N1 - Funding Information: ACKNOWLEDGMENTS This research was supported by DOE, Office of Basic Energy Sciences. Partial support from Sun Co. is also acknowledged. W e wish to thank the NSLS for beam time, Tosoh Corp., Japan, for samples of KL-zeolite and NSF for initiating work on PtL-zeolite catalysts.

PY - 1994/1/1

Y1 - 1994/1/1

N2 - Experimental evidence that Ni can be used to stablizie Pt particles supported in L-zeolite against deactivation by sulfur is presented. A series of Pt-Ni/L-zeolite bimetallic catalysts prepared by co-impregnation were tested for n-hexane aromatization and characterized by Extended X-ray Absorption Fine Structure (EXAFS), hydrogen chemisorption and Transmission Electron Microscopy (TEM) before and after sulfiding. It was found that bimetallic particles are significantly less subject of sulfur-induced particle growth than their monometallic (pt) counterpart. This mechanism of catalyst fouling is known to cause deterioration of Pt/L aromatization catalysts.

AB - Experimental evidence that Ni can be used to stablizie Pt particles supported in L-zeolite against deactivation by sulfur is presented. A series of Pt-Ni/L-zeolite bimetallic catalysts prepared by co-impregnation were tested for n-hexane aromatization and characterized by Extended X-ray Absorption Fine Structure (EXAFS), hydrogen chemisorption and Transmission Electron Microscopy (TEM) before and after sulfiding. It was found that bimetallic particles are significantly less subject of sulfur-induced particle growth than their monometallic (pt) counterpart. This mechanism of catalyst fouling is known to cause deterioration of Pt/L aromatization catalysts.

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U2 - 10.1016/S0167-2991(08)63272-3

DO - 10.1016/S0167-2991(08)63272-3

M3 - Article

AN - SCOPUS:0001768266

SN - 0167-2991

VL - 83

SP - 321

EP - 329

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

IS - C

ER -

Platinum-Nickel/L-zeolite Bimetallic Catalysts: Effect of Sulfur Exposure on Metal Particle Size and n-Hexane Aromatization Activity and Selectivity

Abstract

ASJC Scopus subject areas

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