Sandwich-like PdO/CeO2 nanosheet@HZSM-5 membrane hybrid composite for methane combustion: self-redispersion, sintering-resistance and oxygen, water-tolerance

Qiguang Dai; Shuxing Bai; Yang Lou; Xingyi Wang; Yun Guo; Guanzhong Lu

doi:10.1039/C6NR01800A

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Sandwich-like PdO/CeO₂ nanosheet@HZSM-5 membrane hybrid composite for methane combustion: self-redispersion, sintering-resistance and oxygen, water-tolerance†

Qiguang Dai,^a Shuxing Bai,^a Yang Lou,

^a Xingyi Wang,*^a Yun Guo^a and Guanzhong Lu*^a

Author affiliations

* Corresponding authors

^a Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, PR China
E-mail: wangxy@ecust.edu.cn, gzhlu@ecust.edu.cn

Abstract

PdO/CeO₂ nanosheets encapsulated by a monolayer of a continuous and dense HZSM-5 zeolite membrane were prepared by a facile in situ hydrothermal growth process and used as a highly efficient and thermally stable catalyst for methane combustion. Uncoated PdO/CeO₂ suffered severe sintering at high temperature or high oxygen concentration. However, the encapsulation of HZSM-5 significantly improved sintering resistance by the suppressing effects of the HZSM-5 coating for the agglomeration of PdO_x nanoparticles, resulting in the outstanding thermal stability of PdO/CeO₂. Furthermore, the synthesized hybrid materials also exhibited good oxygen- and water-tolerance for methane combustion due to the oxygen or water barrier. In addition, a reactivation behavior was observed due to the self-redispersion of PdO_x on CeO₂ nanosheets in the reaction atmosphere at high temperature.

Download options Please wait...

Supplementary files

Supplementary information PDF (3089K)

Article information

DOI: https://doi.org/10.1039/C6NR01800A
Article type: Paper
Submitted: 02 Mar 2016
Accepted: 01 Apr 2016
First published: 07 Apr 2016

Download Citation

Nanoscale, 2016,8, 9621-9628

Permissions

Request permissions

Sandwich-like PdO/CeO₂ nanosheet@HZSM-5 membrane hybrid composite for methane combustion: self-redispersion, sintering-resistance and oxygen, water-tolerance

Q. Dai, S. Bai, Y. Lou, X. Wang, Y. Guo and G. Lu, Nanoscale, 2016, 8, 9621 DOI: 10.1039/C6NR01800A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Nanoscale