高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (10): 2041-2045.doi: 10.7503/cjcu20190283

• 研究论文:无机化学 • 上一篇    下一篇

Pd/PdO纳米复合微球的合成及催化性能

马清海1,崔放1,*(),刘沐斐2,徐林煦1,张佳佳1,崔铁钰1   

  1. 1. 哈尔滨工业大学化工与化学学院, 哈尔滨 150001
    2. 中国石油大学(华东)化学工程学院, 青岛 266580
  • 收稿日期:2019-02-01 出版日期:2019-09-11 发布日期:2019-09-11
  • 通讯作者: 崔放 E-mail:cuifang@hit.edu.cn
  • 基金资助:
    国家自然科学基金(51873049);国家自然科学基金(51673055)

Synthesis and Catalytic Performance of Pd/PdO Nanocomposite Microspheres

MA Qinghai1,CUI Fang1,*(),LIU Mufei2,XU linxu1,ZHANG Jiajia1,CUI Tieyu1   

  1. 1. School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
    2. College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China
  • Received:2019-02-01 Online:2019-09-11 Published:2019-09-11
  • Contact: CUI Fang E-mail:cuifang@hit.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(51873049);† Supported by the National Natural Science Foundation of China(51673055)

摘要:

采用甲基丙烯酸锌加速还原氯化钯(PdCl2) 溶液中的钯离子(Pd 2+)为钯(Pd) 纳米微球, 进而用得到的钯纳米微球直接制备钯/氧化钯(Pd/PdO) 纳米复合微球. 通过扫描电子显微镜(SEM)、 透射电子显微镜(TEM)、 粉末X射线衍射分析(XRD)及X射线光电子能谱分析(XPS) 等方法对 Pd/PdO 纳米复合微球进行表征, 结果表明, 制备的纳米复合微球为表面粗糙、 大小均一的纳米微球. 采用紫外-可见吸收光谱(UV-Vis) 等方法考察了 Pd/PdO 纳米复合微球在对硝基苯酚(4-NTP) 还原反应中的催化性能, 发现其具有良好的催化活性和循环稳定性.

关键词: 钯, 氧化钯, 纳米复合微球, 催化性能

Abstract:

Zn(MAA)2 was introduced to accelerate the reduction of Pd 2+ into Pd in PdCl2 solution. The final sample Pd/PdO nanocomposite microspheres were prepared through calcination. Furthermore, the Pd/PdO nanocomposite microspheres were characterized by scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray powder diffraction analysis(XRD) and X-ray photoelectron spectroscopy(XPS). Moreover, UV-visible adsorption spectra were recorded to investigate the performance of Pd/PdO nanocatalysts for the reduction reaction of 4-NTP.

Key words: Pd, PdO, Nanocomposite microspheres, Catalytic performance

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