应用化学 ›› 2023, Vol. 40 ›› Issue (12): 1719-1725.DOI: 10.19894/j.issn.1000-0518.230225

• 研究论文 • 上一篇    下一篇

CuMn2O4@GA复合材料的合成与CO转化

秦君1(), 张瑜1, 辛智慧1, 李小梅1, 张潇1, 闫亭璇1, 冯锋2, 白云峰1   

  1. 1.山西大同大学化学与化工学院,大同 037009
    2.山西能源学院能源化学与材料工程系,太原 030600
  • 收稿日期:2023-08-05 接受日期:2023-10-20 出版日期:2023-12-01 发布日期:2024-01-03
  • 通讯作者: 秦君
  • 基金资助:
    山西大同大学科研项目(2020YGZX009);研究生教育改革项目(23JG06)

Synthesis and CO Conversion of CuMn2O4@GA Composite

Jun QIN1(), Yu ZHANG1, Zhi-Hui XIN1, Xiao-Mei LI1, Xiao ZHANG1, Ting-Xuan YAN1, Feng FENG2, Yun-Feng BAI1   

  1. 1.College of Chemistry and Chemical Engineering,Shanxi Datong University,Datong 037009,China
    2.Department of Energy Chemistry and Materials Engineering,Shanxi Institute of Energy,Taiyuan 030600,China
  • Received:2023-08-05 Accepted:2023-10-20 Published:2023-12-01 Online:2024-01-03
  • Contact: Jun QIN
  • About author:qj187@hotmail.com
  • Supported by:
    the Science Foundation of Shanxi Datong University(2020YGZX009);the Graduate Education Reform Project(23JG06)

摘要:

催化氧化法在CO消除领域广泛应用,合成了单分散多孔微球催化剂CuMn2O4及其石墨烯气凝胶(GA)超轻复合材料CuMn2O4@GA。通过扫描电子显微镜(SEM)、X射线衍射(XRD)等方法表征了材料结构。结果表明,水热法是理想的石墨烯复合材料合成方法。CuMn2O4@GA材料结构强度良好、质地均一,催化剂颗粒在气凝胶结构中充分分散。催化性能测试表明,CuMn2O4形貌与CO在其表面的吸附和催化转化行为密切相关。得益于复合材料的低密度网络结构,在60000 mL/(g(cat)·h)的高通量进气和128 ℃下实现了CO的完全转化。进气湿度对复合材料CO催化活性无明显影响,多次重复活化和使用测试表明复合材料具有良好的结构保持性和优良的应用经济性。

关键词: 一氧化碳转化, CuMn2O x 催化剂, 复合材料, 高通量进气

Abstract:

Catalytic oxidation has been widely used in CO elimination. A single-dispersed porous microsphere catalyst CuMn2O4 and its graphene composite material CuMn2O4@GA are synthesized. The material structure is characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and other methods. The results show that the hydrothermal method is an ideal method for the synthesis of graphene composite. The structure of CuMn2O4@GA is stable and uniform, and the catalyst particles are fully dispersed in the aerogel. Catalytic performance test shows that the adsorption and the conversion behavior of CO on the surface of CuMn2O4 is closely related to its morphology. Benefiting from the low-density network structure of CuMn2O4@GA, complete conversion of CO is achieved at a high gas flow of 60000 mL/(g(cat)·h) and 128 ℃. The water of the inlet gas has no significant effect on the catalytic activity of CuMn2O4@GA. Multiple repeated activation and use test show that CuMn2O4@GA has good structural integrity and excellent economy.

Key words: Carbon monoxide conversion, CuMn2O x catalyst, Composite material, High gas flux

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