Journal of Materials Science

, Volume 54, Issue 6, pp 4637–4646 | Cite as

Bi2O3 decorated TiO2 nanotube confined Pt nanoparticles with enhanced activity for catalytic combustion of ethylene

  • Xiaoyang Wang
  • Xu Yang
  • Lei MiaoEmail author
  • Jie Gao
  • Quanming Peng
  • Liangpeng Wu
  • Siyi Chen
  • Xinjun LiEmail author


A novel Pt entrapped in Bi2O3 decorated TiO2 nanotube (Pt-in/Bi2O3@TNT) composite was obtained by the assistance of vacuum impregnation and subsequent calcination. Attributed to the confinement effect, TiO2 nanotube (TNT) confined Pt nanoparticles catalyst (Pt-in/TNT) processed better ethylene (C2H4) combustion activity than Pt nanoparticles loaded on TNT catalyst (Pt-out/TNT). More distinctly, the Pt-in/Bi2O3@TNT displayed enhanced activity towards C2H4 combustion, a nearly complete depletion at 150 °C was achieved, which is 30 °C lower than that of the Pt-in/TNT. The characterizations of X-ray photoelectron spectroscopy (XPS) not only verified that the electron density destitution of Pt in Pt-in/Bi2O3@TNT is significantly enhanced due to the modulation of layered Bi2O3 on the confinement effect of TNT, but also indicated that the catalyst facilitates the forming and migrating of active oxygen species. This work presents an efficient confinement effect combined with electron modifier strategy to construct high-performance catalysts for environmental applications.



This work was supported by Natural Science Foundation of Guangxi Province (Grant No. 2015GXNSFFA139002), Science and Technology Plan Project of Guangzhou City (No. 201803030019) and National Natural Science Foundation of China (Grant Nos. 51772056, 51562005). The authors also gratefully acknowledge the analytical and testing center of GIEC for the testing support of this work.

Compliance with ethical standards

Conflict of interest

There are no conflicts to declare.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable EnergyGuangdong Provincial Key Laboratory of New and Renewable Energy Research and DevelopmentGuangzhouPeople’s Republic of China
  2. 2.Guangxi Key Laboratory of Information Material, Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, School of Material Science and EngineeringGuilin University of Electronic TechnologyGuilinPeople’s Republic of China
  3. 3.Guangzhou Foreign Language SchoolGuangzhouPeople’s Republic of China
  4. 4.University of Chinese Academy of SciencesBeijingPeople’s Republic of China

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