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yibozhang

铁杆木虫 (正式写手)

[交流] 【分享】包院士Science最新文章 已有27人参与

http://www.sciencemag.org/cgi/content/abstract/328/5982/1141
Science 28 May 2010:Vol. 328. no. 5982, pp. 1141 - 1144DOI: 10.1126/science.1188267


Reports
Interface-Confined Ferrous Centers for Catalytic Oxidation
Qiang Fu,1,* Wei-Xue Li,1,2,* Yunxi Yao,1 Hongyang Liu,1 Hai-Yan Su,1,2 Ding Ma,1 Xiang-Kui Gu,1,2 Limin Chen,1 Zhen Wang,1 Hui Zhang,3 Bing Wang,3 Xinhe Bao1,

Coordinatively unsaturated ferrous (CUF) sites confined in nanosized matrices are active centers in a wide range of enzyme and homogeneous catalytic reactions. Preparation of the analogous active sites at supported catalysts is of great importance in heterogeneous catalysis but remains a challenge. On the basis of surface science measurements and density functional calculations, we show that the interface confinement effect can be used to stabilize the CUF sites by taking advantage of strong adhesion between ferrous oxides and metal substrates. The interface-confined CUF sites together with the metal supports are active for dioxygen activation, producing reactive dissociated oxygen atoms. We show that the structural ensemble was highly efficient for carbon monoxide oxidation at low temperature under typical operating conditions of a proton-exchange membrane fuel cell.

1 State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
2 Center for Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
3 Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China.
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JGDeng

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哎,包院士太N了。
10楼2010-05-28 14:10:56
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nicholas00

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小木虫(金币+0.5):给个红包,谢谢回帖交流
很好~顶一下~~包老师组网页上面Publications里也贴出来了
2楼2010-05-28 10:56:53
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lzl0918

金虫 (著名写手)


小木虫(金币+0.5):给个红包,谢谢回帖交流
谁可以上传一下这篇paper?
思考是认知的重要方式
3楼2010-05-28 11:15:58
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晓飞zj

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小木虫(金币+0.5):给个红包,谢谢回帖交流
4楼2010-05-28 13:38:47
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