Catalytic combustion of methane over nano ZrO 2-supported copper-based catalysts

• Published in: Chinese chemical letters Vol. 18; no. 8; pp. 993 - 996
• Main Authors: Qu, Fen Fen, Chu, Wei, Shi, Li Min, Chen, Mu Hua, Hu, Jin Yan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 2007
• Subjects: Catalytic combustion; Copper-based catalysts; Methane; Nano ZrO 2; Methane; Catalytic combustion; Copper-based catalysts; Nano ZrO 2
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2007.06.001

The nano ZrO 2-supported copper-based catalysts for methane combustion were investigated by means of N 2 adsorption, TEM, XRD, H 2-TPR techniques and the test of methane oxidation. Two kinds of ZrO 2 were used as support, one (ZrO 2-1) was obtained from the commercial ZrO 2 and the other (ZrO 2-2) was issued from the thermal decomposition of zirconium nitrate. It was found that the CuO/ZrO 2-2 catalyst was more active than CuO/ZrO 2-1. N 2 adsorption, H 2-TPR and XRD measurements showed that larger surface area, better reduction property, presence of tetragonal ZrO 2 and higher dispersion of active component for CuO/ZrO 2-2 than that of CuO/ZrO 2-1. These factors could be the dominating reasons for its higher activity for methane combustion.