Sample controlled thermal analysis

Temperature programmed reduction of bulk and supported copper oxide

P. A. Barnes, M. J. Tiernan, G. M.B. Parkes

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

The reduction of bulk and supported copper oxide was investigated using Constant Rate Temperature Programmed Reduction (CR-TPR) and conventional linear heating rate TPR. Linear heating profiles indicated that the reduction of supported samples was more facile than that of the bulk oxide. CRTA results revealed that both supported and bulk oxide samples were reduced via a mechanism involving a nucleation step and/or auto-catalysis. The increased reducibility of the supported samples is attributed to a higher dispersion which provides a larger reactive surface area and a high concentration of defects at which reduction is initiated.

Original languageEnglish
Pages (from-to)733-737
Number of pages5
JournalJournal of Thermal Analysis and Calorimetry
Volume56
Issue number2
DOIs
Publication statusPublished - Sep 1999
Event7th European Symposium on Thermal Analysis and Calorimetry - Balatonfured, Hungary
Duration: 30 Aug 19984 Sep 1998
Conference number: 7

Fingerprint

Copper oxides
copper oxides
Thermoanalysis
thermal analysis
Oxides
autocatalysis
Temperature
heating
temperature
oxides
Heating rate
Catalysis
Nucleation
nucleation
Heating
Defects
defects
profiles

Cite this

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title = "Sample controlled thermal analysis: Temperature programmed reduction of bulk and supported copper oxide",
abstract = "The reduction of bulk and supported copper oxide was investigated using Constant Rate Temperature Programmed Reduction (CR-TPR) and conventional linear heating rate TPR. Linear heating profiles indicated that the reduction of supported samples was more facile than that of the bulk oxide. CRTA results revealed that both supported and bulk oxide samples were reduced via a mechanism involving a nucleation step and/or auto-catalysis. The increased reducibility of the supported samples is attributed to a higher dispersion which provides a larger reactive surface area and a high concentration of defects at which reduction is initiated.",
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author = "Barnes, {P. A.} and Tiernan, {M. J.} and Parkes, {G. M.B.}",
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language = "English",
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Sample controlled thermal analysis : Temperature programmed reduction of bulk and supported copper oxide. / Barnes, P. A.; Tiernan, M. J.; Parkes, G. M.B.

In: Journal of Thermal Analysis and Calorimetry, Vol. 56, No. 2, 09.1999, p. 733-737.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Sample controlled thermal analysis

T2 - Temperature programmed reduction of bulk and supported copper oxide

AU - Barnes, P. A.

AU - Tiernan, M. J.

AU - Parkes, G. M.B.

PY - 1999/9

Y1 - 1999/9

N2 - The reduction of bulk and supported copper oxide was investigated using Constant Rate Temperature Programmed Reduction (CR-TPR) and conventional linear heating rate TPR. Linear heating profiles indicated that the reduction of supported samples was more facile than that of the bulk oxide. CRTA results revealed that both supported and bulk oxide samples were reduced via a mechanism involving a nucleation step and/or auto-catalysis. The increased reducibility of the supported samples is attributed to a higher dispersion which provides a larger reactive surface area and a high concentration of defects at which reduction is initiated.

AB - The reduction of bulk and supported copper oxide was investigated using Constant Rate Temperature Programmed Reduction (CR-TPR) and conventional linear heating rate TPR. Linear heating profiles indicated that the reduction of supported samples was more facile than that of the bulk oxide. CRTA results revealed that both supported and bulk oxide samples were reduced via a mechanism involving a nucleation step and/or auto-catalysis. The increased reducibility of the supported samples is attributed to a higher dispersion which provides a larger reactive surface area and a high concentration of defects at which reduction is initiated.

KW - Catalysis

KW - Constant rate thermal analysis (CRTA)

KW - Copper oxide

KW - Temperature programmed reduction (TPR)

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JO - Journal of Thermal Analysis and Calorimetry

JF - Journal of Thermal Analysis and Calorimetry

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