Comparative studies of Pd, Ru, Ni, Cu/ZnAl2O4 catalysts for the water gas shift reaction

• Autorzy: Pawel Mierczynski , Waldemar Maniukiewicz , Tomasz Maniecki
• Języki publikacji: EN

Abstrakty

EN

The activity of monometallic Pd, Ru, Ni and Cu catalysts supported on spinel ZnAl2O4 for water gas shift reaction (WGS) was investigated. The physicochemical properties of each catalyst was studied by XRD, TPR, BET and chemisorption methods. The highest activity was obtained for Cu/ZnAl2O4 among the catalysts tested. The activation process carried out in a reducing atmosphere 5%H2-95%Ar in the case of Cu/ZnAl2O4 system lead to the catalytic activity improvement. In the case of copper catalysts, the water gas shift reaction proceeded by the redox surface mechanism between Cu0/Cu+. The PdZn alloy formation after reduction at 350°C was shown. [...]

Słowa kluczowe

EN

Monometallic catalysts; ZnAl2O4; WGS; Spinel; PdZn alloy

• Czasopismo: Open Chemistry
• Rocznik: 2013
• Tom: 11
• Numer: 6
• Strony: 912-919

Daty

wydano

2013-06-01

online

2013-03-28

Twórcy

autor

Pawel Mierczynski

• Institute of General and Ecological Chemistry, Lodz University of Technology, 90-924, Łódź, Poland,

autor

Waldemar Maniukiewicz

• Institute of General and Ecological Chemistry, Lodz University of Technology, 90-924, Łódź, Poland

autor

Tomasz Maniecki

• Institute of General and Ecological Chemistry, Lodz University of Technology, 90-924, Łódź, Poland

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Identyfikatory

DOI

10.2478/s11532-013-0223-6