辽宁石油化工大学学报 ›› 2026, Vol. 46 ›› Issue (4): 7-15.DOI: 10.12422/j.issn.1672-6952.2026.04.002

• 化学与化学工程 • 上一篇    下一篇

CuSnCe催化剂催化CO⁃PROX性能的研究:制备方法的影响

林鹏雪1(), 朱鹏程2, 王宏浩1(), 张财顺1, 韩蛟3, 刘道胜3, 张磊1, 高志贤1   

  1. 1.辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
    2.中石油昆仑燃气有限公司安徽分公司,安徽 合肥 230041
    3.辽宁石油化工大学 理学院,辽宁 抚顺 113001
  • 收稿日期:2026-03-13 修回日期:2026-05-11 出版日期:2026-08-25 发布日期:2026-07-20
  • 通讯作者: 王宏浩
  • 作者简介:林鹏雪(2000-),女,硕士研究生,从事催化新材料方面的研究;E⁃mail:404364379@qq.com
  • 基金资助:
    国家自然科学基金项目(22379059);辽宁省教育厅基本科研项目(LJ212410148019);辽宁石油化工大学引进人才科研启动基金项目(2019?XJJL?028)

Study on the Catalytic Performance of CuSnCe Catalyst for CO⁃PROX: Influence of Preparation Methods

Pengxue LIN1(), Pengcheng ZHU2, Honghao WANG1(), Caishun ZHANG1, Jiao HAN3, Daosheng LIU3, Lei ZHANG1, Zhixian GAO1   

  1. 1.School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Anhui Branch,PetroChina Kunlun Gas Co. ,Ltd. ,Hefei Anhui 230041,China
    3.College of Science,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2026-03-13 Revised:2026-05-11 Published:2026-08-25 Online:2026-07-20
  • Contact: Honghao WANG

摘要:

以Ce(NO3)3·6H2O、Cu(NO3)2·3H2O和SnCl4·5H2O为原料、NaOH为沉淀剂,分别采用共沉淀法、沉淀⁃浸渍法和共沉淀⁃水热法制备了CuSnCe⁃C、CuSnCe⁃PI和CuSnCe⁃CH催化剂;运用XRD、BET、H2⁃TPR和XPS等表征技术对催化剂进行表征,并在富氢气氛下进行了CO优先氧化性能评价。结果表明,制备方法对催化剂的物理性质、化学性质及催化性能均有显著影响,其中采用沉淀⁃水热法制备的CuSnCe⁃CH催化剂表现出最佳的催化性能;在常压、反应温度为140 ℃、氧过量系数为2.6和质量空速为20 244 mL/(g·h)的条件下,该催化剂的CO转化率最高(94.9%),CO氧化选择性为43.2%;CuSnCe⁃CH催化剂具有平均晶粒粒径小、比表面积较大、高分散的CuO较多、还原温度较低及氧空位数量较多的特点,展现出最佳的CO优先氧化性能。

关键词: CO优先氧化, 催化剂制备, CuSnCe催化剂

Abstract:

Using Ce(NO3)3·6H2O, Cu(NO3)2·3H2O, and SnCl4·5H2O as raw materials, and NaOH as the precipitant, CuSnCe⁃C, CuSnCe⁃PI, and CuSnCe⁃CH catalysts were prepared by co⁃precipitation, precipitation⁃impregnation, and co⁃precipitation⁃hydrothermal methods, respectively. The catalysts were characterized using characterization techniques such as XRD, BET, H2⁃TPR, and XPS, and their CO preferential oxidation performance was evaluated under a hydrogen⁃rich atmosphere. The results show that changes in preparation methods significantly affect the physical and chemical properties as well as the catalytic performance of the catalysts. Among them, the CuSnCe⁃CH catalyst prepared by the co⁃precipitation⁃hydrothermal method exhibits the best catalytic performance. Under atmospheric pressure, at a reaction temperature of 140 ℃, an oxygen excess factor of 2.6, and a mass space velocity of 20 244 mL/(g·h), the CO conversion rate reaches a maximum of 94.9%, with a CO oxidation selectivity of 43.2%. Consistent with the characterization results,catalysts with smaller average grain size, larger specific surface area, higher CuO dispersion, lower reduction temperature, and higher oxygen vacancy content exhibit the best CO preferential oxidation performance.

Key words: CO preferential oxidation, Catalyst preparation, CuSnCe catalyst

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引用本文

林鹏雪, 朱鹏程, 王宏浩, 张财顺, 韩蛟, 刘道胜, 张磊, 高志贤. CuSnCe催化剂催化CO⁃PROX性能的研究:制备方法的影响[J]. 辽宁石油化工大学学报, 2026, 46(4): 7-15.

Pengxue LIN, Pengcheng ZHU, Honghao WANG, Caishun ZHANG, Jiao HAN, Daosheng LIU, Lei ZHANG, Zhixian GAO. Study on the Catalytic Performance of CuSnCe Catalyst for CO⁃PROX: Influence of Preparation Methods[J]. Journal of Liaoning Petrochemical University, 2026, 46(4): 7-15.

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链接本文: https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2026.04.002

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