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采用密度泛函理论研究Au-Pd和Au-Pt纳米团簇催化解离N2O.首先根据计算得到Au19Pd和Au19Pt团簇的最优构型(杂原子均位于团簇的表面).以Au19Pd催化解离N2O为例研究催化解离的反应机理.对此主要考虑两个反应机理,分别是Eley-Rideal(ER)和Langmuir-Hinshelwood(LH).第一个机理中N2O解离的能垒是1.118 e V,并且放热0.371 e V.N2分子脱附后,表面剩余的氧原子沿着ER路径消除需要克服的能垒是1.920e V,这比反应沿着LH路径的能垒高0.251 e V.此外根据LH机理,氧原子在表面的吸附能是-3.203 e V,而氧原子在...
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物理化学学报
ISSN: 1000-6818
CN: 11-1892/O6
Year: 2015
Issue: 03
Volume: 31
Page: 425-434
0 . 8 4 4
JCR@2015
1 0 . 8 0 0
JCR@2023
JCR Journal Grade:4
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 2
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