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Abstract:
从Pd纳米粒子出发制备了具有核壳结构的新型纳米Pd@SiO2/Ce0.4Zr0.6O2三效催化剂及作为参比的Pd/Ce0.4Zr0.6O2催化剂,采用X射线衍射、透射电子显微镜、氢气程序升温还原和氮气低温吸附-脱附等技术对催化剂的物化性质进行了表征,研究了Pd@SiO2/Ce0.4Zr0.6O2和Pd/Ce0.4Zr0.6O2催化剂的三效反应催化活性和热稳定性.结果表明,SiO2壳层可以抑制Pd粒子的团聚,同时还能抑制Pd物种的再分散,减少Pd的流失.具有核壳结构的纳米Pd@SiO2/Ce0.4Zr0.6O2催化剂具有更好的三效催化活性和更高的热稳定性.
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高等学校化学学报
ISSN: 0251-0790
Year: 2013
Issue: 8
Volume: 34
Page: 1936-1944
1 . 0 0 0
JCR@2022
ESI Discipline: CHEMISTRY;
JCR Journal Grade:3
CAS Journal Grade:4
Cited Count:
SCOPUS Cited Count: 3
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 4
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: