Catalytic Oxygen Activation on Helical Gold Nanowires
Catalytic Oxygen Activation on Helical Gold Nanowires
复制标题
螺旋金纳米线上的催化氧活化
DOI:
10.1021/jp302865z
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发表时间:
2012-05
影响因子:
3.7
通讯作者:
Chen, Liang
中科院分区:
文献类型:
--
作者:
Yang, Jianhui;Li, Bo;Zhang, Qiuju;Yim, Wai-leung;Chen, Liang
Oxygen activation on one-dimensional (1D) gold nanotube T(6,0) and nanowire W6-1 was investigated using first principles density functional methods (DFT). It is found that the oxygen adsorption strength on T(6,0) is unexpectedly weak, whereas W6-1 with inner Au–Au bonds is more active for O2 adsorption. To further promote the catalyzed oxygen activation, we proposed and evaluated two working strategies, including imposing a small strain along the axial direction and doping alien transition metal (TM) atoms. Specifically, 4% compression or doping Pt atoms can decrease the O2 dissociation barriers from 0.85 eV to a more desired 0.6 eV. The analysis of electronic structures and charge density difference revealed that the inner Au–TM bond can decrease the filling degree of the Au-dz2 orbital and, thus, improve the oxygen activity.
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DOI:
10.1002/chin.200701227
发表时间:
2007-01
期刊:
ChemInform
影响因子:
--
作者:
Mingshu Chen;D. Wayne Goodman
通讯作者:
Mingshu Chen;D. Wayne Goodman
DOI:
10.1063/1.1666009
发表时间:
2004-03
期刊:
The Journal of chemical physics
影响因子:
--
作者:
Qiang Sun;P. Jena;Y. D. Kim;M. Fischer;G. Ganteför
通讯作者:
Qiang Sun;P. Jena;Y. D. Kim;M. Fischer;G. Ganteför
影响因子:
3.7
作者:
Kresse, G;Furthmuller, J
通讯作者:
Furthmuller, J
影响因子:
8.6
作者:
Mavrikakis, M;Hammer, B;Norskov, JK
通讯作者:
Norskov, JK
影响因子:
3.3
作者:
Ye Xu;M. Mavrikakis
通讯作者:
Ye Xu;M. Mavrikakis