Sandwich-like PdO/CeO2 nanosheet@HZSM-5 membrane hybrid composite for methane combustion: self-redispersion, sintering-resistance and oxygen, water-tolerance
作者： Qiguang Dai , Shuxing Bai , Yang Lou , Xingyi Wang , Yun Guo
DOI: 10.1039/C6NR01800A
关键词: Zeolite 、 Thermal stability 、 Materials science 、 Hybrid material 、 Inorganic chemistry 、 Oxygen 、 Nanoparticle 、 Sintering 、 Nanosheet 、 Catalysis
摘要: PdO/CeO2 nanosheets encapsulated by a monolayer of continuous and dense HZSM-5 zeolite membrane were prepared facile in situ hydrothermal growth process used as highly efficient thermally stable catalyst for methane combustion. Uncoated suffered severe sintering at high temperature or oxygen concentration. However, the encapsulation significantly improved resistance suppressing effects coating agglomeration PdOx nanoparticles, resulting outstanding thermal stability PdO/CeO2. Furthermore, synthesized hybrid materials also exhibited good oxygen- water-tolerance combustion due to water barrier. In addition, reactivation behavior was observed self-redispersion on CeO2 reaction atmosphere temperature.
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