Activation of amorphous Cu-M (M = Ti, Zr or Hf) alloy powders made by mechanical alloying

Á Molnár, L. Domokos, T. Katona, T. Martinek, G. Mulas, G. Cocco, I. Bertóti, J. Szépvölgyi

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Amorphous Cu-M alloy powders (Cu40Ti60, Cu50Zr50 and CU65Hf35) produced by mechanical alloying are activated by being applied as catalyst in the transformation of various alcohols at elevated temperature (523-573 K). During the dehydrogenation of 2-propanol to acetone and the transformations of allyl alcohol to form propanal and 1-propanol active, stable and selective catalysts are generated from Cu-Zr and Cu-Hf. DSC, XRD and XPS data indicate bulk crystallization and copper segregation to the surface. Due to surface titanium enrichment Cu-Ti proved to be inferior to the other two alloys.

Original languageEnglish
Pages (from-to)1074-1078
Number of pages5
JournalMaterials Science and Engineering A
Volume226-228
Publication statusPublished - Jun 15 1997

Fingerprint

Mechanical alloying
Propanol
Powders
alloying
alcohols
Alcohols
Chemical activation
activation
catalysts
1-Propanol
Catalysts
2-Propanol
Dehydrogenation
dehydrogenation
Acetone
Crystallization
Titanium
acetone
Copper
X ray photoelectron spectroscopy

Keywords

  • 2-propanol
  • Allyl alcohol
  • Amorphous copper alloys
  • Dehydrogenation
  • Isomerization
  • Mechanical alloying
  • Methanol

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Activation of amorphous Cu-M (M = Ti, Zr or Hf) alloy powders made by mechanical alloying. / Molnár, Á; Domokos, L.; Katona, T.; Martinek, T.; Mulas, G.; Cocco, G.; Bertóti, I.; Szépvölgyi, J.

In: Materials Science and Engineering A, Vol. 226-228, 15.06.1997, p. 1074-1078.

Research output: Contribution to journalArticle

Molnár Á, Domokos L, Katona T, Martinek T, Mulas G, Cocco G et al. Activation of amorphous Cu-M (M = Ti, Zr or Hf) alloy powders made by mechanical alloying. Materials Science and Engineering A. 1997 Jun 15;226-228:1074-1078.
@article{bf8ab6a3ce5c4fdba4068db35fbc5559,
title = "Activation of amorphous Cu-M (M = Ti, Zr or Hf) alloy powders made by mechanical alloying",
abstract = "Amorphous Cu-M alloy powders (Cu40Ti60, Cu50Zr50 and CU65Hf35) produced by mechanical alloying are activated by being applied as catalyst in the transformation of various alcohols at elevated temperature (523-573 K). During the dehydrogenation of 2-propanol to acetone and the transformations of allyl alcohol to form propanal and 1-propanol active, stable and selective catalysts are generated from Cu-Zr and Cu-Hf. DSC, XRD and XPS data indicate bulk crystallization and copper segregation to the surface. Due to surface titanium enrichment Cu-Ti proved to be inferior to the other two alloys.",
keywords = "2-propanol, Allyl alcohol, Amorphous copper alloys, Dehydrogenation, Isomerization, Mechanical alloying, Methanol",
author = "{\'A} Moln{\'a}r and L. Domokos and T. Katona and T. Martinek and G. Mulas and G. Cocco and I. Bert{\'o}ti and J. Sz{\'e}pv{\"o}lgyi",
year = "1997",
month = "6",
day = "15",
language = "English",
volume = "226-228",
pages = "1074--1078",
journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",
issn = "0921-5093",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Activation of amorphous Cu-M (M = Ti, Zr or Hf) alloy powders made by mechanical alloying

AU - Molnár, Á

AU - Domokos, L.

AU - Katona, T.

AU - Martinek, T.

AU - Mulas, G.

AU - Cocco, G.

AU - Bertóti, I.

AU - Szépvölgyi, J.

PY - 1997/6/15

Y1 - 1997/6/15

N2 - Amorphous Cu-M alloy powders (Cu40Ti60, Cu50Zr50 and CU65Hf35) produced by mechanical alloying are activated by being applied as catalyst in the transformation of various alcohols at elevated temperature (523-573 K). During the dehydrogenation of 2-propanol to acetone and the transformations of allyl alcohol to form propanal and 1-propanol active, stable and selective catalysts are generated from Cu-Zr and Cu-Hf. DSC, XRD and XPS data indicate bulk crystallization and copper segregation to the surface. Due to surface titanium enrichment Cu-Ti proved to be inferior to the other two alloys.

AB - Amorphous Cu-M alloy powders (Cu40Ti60, Cu50Zr50 and CU65Hf35) produced by mechanical alloying are activated by being applied as catalyst in the transformation of various alcohols at elevated temperature (523-573 K). During the dehydrogenation of 2-propanol to acetone and the transformations of allyl alcohol to form propanal and 1-propanol active, stable and selective catalysts are generated from Cu-Zr and Cu-Hf. DSC, XRD and XPS data indicate bulk crystallization and copper segregation to the surface. Due to surface titanium enrichment Cu-Ti proved to be inferior to the other two alloys.

KW - 2-propanol

KW - Allyl alcohol

KW - Amorphous copper alloys

KW - Dehydrogenation

KW - Isomerization

KW - Mechanical alloying

KW - Methanol

UR - http://www.scopus.com/inward/record.url?scp=0003027218&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0003027218&partnerID=8YFLogxK

M3 - Article

VL - 226-228

SP - 1074

EP - 1078

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

SN - 0921-5093

ER -