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author:

俞炜铃 (俞炜铃.) [1] | 左会文 (左会文.) [2] | 陆春海 (陆春海.) [3] | 李奕 (李奕.) [4] (Scholars:李奕) | 章永凡 (章永凡.) [5] (Scholars:章永凡) | 陈文凯 (陈文凯.) [6] (Scholars:陈文凯)

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PKU CSCD

Abstract:

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...

Keyword:

N2O解离 催化活性 反应机理 纳米团簇

Community:

  • [ 1 ] 福州大学化学系
  • [ 2 ] 成都理工大学核技术与自动化工程学院

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Source :

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

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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