XPS of carbon on Pt-black and EUROPT-1. Is methylcyclopentane ring opening a 'coke sensitive' reaction?

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

XPS line decomposition of carbon residues on Pt-black and EUROPT-1 reveal the presence of a graphitic, hydrocarbon polymer and oxidized carbon overlayers on both catalysts. Usual regeneration pretreatment with oxygen and hydrogen at reaction temperatures (ca. 600 K) does not remove all carbon from Pt-black or EUROPT-1 but an O2 treatment of EUROPT-1 at 673 K removes most of the carbon. A 'coke sensitivity' is suggested as an additional factor influencing the 'selectivity' (the 2-methylpentane/n-hexane (2MP/nH) ratio) of ring opening of methylcyclopentane, the absence of oxidized carbonaceous entities being necessary to produce low 2MP/nH ratios.

Original languageEnglish
Pages (from-to)225-232
Number of pages8
JournalJournal of Molecular Catalysis
Volume94
Issue number2
DOIs
Publication statusPublished - Nov 27 1994

Fingerprint

Coke
X ray photoelectron spectroscopy
Carbon
Hexane
Hydrocarbons
Decomposition
Hydrogen
Catalysts
Oxygen
Polymers
Temperature

Keywords

  • Coke sensitivity
  • Cyclopentane
  • EUROPT-1
  • Platinum
  • Ring opening
  • XPS

Cite this

XPS of carbon on Pt-black and EUROPT-1. Is methylcyclopentane ring opening a 'coke sensitive' reaction? / Paál, Z.

In: Journal of Molecular Catalysis, Vol. 94, No. 2, 27.11.1994, p. 225-232.

Research output: Contribution to journalArticle

@article{fe03777f03cf461695dfdd266a047ab4,
title = "XPS of carbon on Pt-black and EUROPT-1. Is methylcyclopentane ring opening a 'coke sensitive' reaction?",
abstract = "XPS line decomposition of carbon residues on Pt-black and EUROPT-1 reveal the presence of a graphitic, hydrocarbon polymer and oxidized carbon overlayers on both catalysts. Usual regeneration pretreatment with oxygen and hydrogen at reaction temperatures (ca. 600 K) does not remove all carbon from Pt-black or EUROPT-1 but an O2 treatment of EUROPT-1 at 673 K removes most of the carbon. A 'coke sensitivity' is suggested as an additional factor influencing the 'selectivity' (the 2-methylpentane/n-hexane (2MP/nH) ratio) of ring opening of methylcyclopentane, the absence of oxidized carbonaceous entities being necessary to produce low 2MP/nH ratios.",
keywords = "Coke sensitivity, Cyclopentane, EUROPT-1, Platinum, Ring opening, XPS",
author = "Z. Pa{\'a}l",
year = "1994",
month = "11",
day = "27",
doi = "10.1016/S0304-5102(94)87044-6",
language = "English",
volume = "94",
pages = "225--232",
journal = "Journal of Molecular Catalysis",
issn = "0304-5102",
publisher = "Elsevier BV",
number = "2",

}

TY - JOUR

T1 - XPS of carbon on Pt-black and EUROPT-1. Is methylcyclopentane ring opening a 'coke sensitive' reaction?

AU - Paál, Z.

PY - 1994/11/27

Y1 - 1994/11/27

N2 - XPS line decomposition of carbon residues on Pt-black and EUROPT-1 reveal the presence of a graphitic, hydrocarbon polymer and oxidized carbon overlayers on both catalysts. Usual regeneration pretreatment with oxygen and hydrogen at reaction temperatures (ca. 600 K) does not remove all carbon from Pt-black or EUROPT-1 but an O2 treatment of EUROPT-1 at 673 K removes most of the carbon. A 'coke sensitivity' is suggested as an additional factor influencing the 'selectivity' (the 2-methylpentane/n-hexane (2MP/nH) ratio) of ring opening of methylcyclopentane, the absence of oxidized carbonaceous entities being necessary to produce low 2MP/nH ratios.

AB - XPS line decomposition of carbon residues on Pt-black and EUROPT-1 reveal the presence of a graphitic, hydrocarbon polymer and oxidized carbon overlayers on both catalysts. Usual regeneration pretreatment with oxygen and hydrogen at reaction temperatures (ca. 600 K) does not remove all carbon from Pt-black or EUROPT-1 but an O2 treatment of EUROPT-1 at 673 K removes most of the carbon. A 'coke sensitivity' is suggested as an additional factor influencing the 'selectivity' (the 2-methylpentane/n-hexane (2MP/nH) ratio) of ring opening of methylcyclopentane, the absence of oxidized carbonaceous entities being necessary to produce low 2MP/nH ratios.

KW - Coke sensitivity

KW - Cyclopentane

KW - EUROPT-1

KW - Platinum

KW - Ring opening

KW - XPS

UR - http://www.scopus.com/inward/record.url?scp=0000821560&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000821560&partnerID=8YFLogxK

U2 - 10.1016/S0304-5102(94)87044-6

DO - 10.1016/S0304-5102(94)87044-6

M3 - Article

VL - 94

SP - 225

EP - 232

JO - Journal of Molecular Catalysis

JF - Journal of Molecular Catalysis

SN - 0304-5102

IS - 2

ER -