• 摘要：通过流动法技术研究了Cu-O/γ Al₂O₃₂O₃对CO和CH₄的氧化活性。通过O₂ TPD MS等技术研究了催化剂上表面氧脱附与表面氧恢复能力。结果表明,La₂O₃的添加改善了Cu-O/γ Al₂O₃₄的氧化活性；La₂O₃的添加促进了Cu-O/γ Al₂O₃

• Abstract：Oxidation activity of Cu-O/γ Al₂O₃ catalyst and the addition of La₂O₃ on Cu-O/γ Al₂O₃ catalyst for oxidation reaction of carbon monoxide (CO) and methane (CH₄) were investigated by means of the micro reactor GC system. Surface oxygen desorption and recovery ability of the three catalysts were studied by means of the O₂ TPD MS. Experimental results show that the addition of La₂O₃ may improve oxidation activity of Cu-O/γ Al₂O₃ for CO and CH₄. The addition of La₂O₃ may increase the ability of catalysis surface oxygen desorption and surface oxygen recovery.

• Key words：CO  CH₄  oxidation activity  catalyst  La₂O₃  CuO  γ Al₂O₃  surface O₂.

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