Surface Chemistry of CO on Ru(0001) under the Confinement of Graphene Cover
文献类型：期刊论文
| 作者 | Jin, Li1; Fu, Qiang1; Dong, Aiyi1; Ning, Yanxiao1; Wang, Zhoujun1; Bluhm, Hendrik2; Bao, Xinhe1 |
| 刊名 | journal of physical chemistry c
 |
| 出版日期 | 2014-06-12 |
| 卷号 | 118期号:23页码:12391-12398 |
| 通讯作者 | 傅强 |
| 英文摘要 | in heterogeneous catalysis, graphitic carbon formed on metal often poisons metal-catalyzed reactions through physical blockage of surface active sites. in materials science, recent works show that graphene overlayers can passivate metal surfaces acting as gas-impermeable protection coatings. however, here we show using in situ surface electron microscopy and photoemission spectroscopy that co can be readily trapped inside the two-dimensional space between the graphene overlayer and ru(0001) surface under near-ambient conditions. the intercalated co molecules effectively decouple the graphene overlayer from the ru substrate. meanwhile, the graphene cover exerts a strong confinement effect on the surface chemistry of co on ru(0001), showing that a high-coverage co adlayer can be kept at the graphene/ru interface at room temperature which desorbs intensively and completely around 390 k. this finding challenges the traditional concept of graphene films as passivation layers, indicating that the surface graphitic carbon can be used to modify the surface chemistry of metals. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
| 关键词[WOS] | epitaxial graphene ; metal-surfaces ; oxidation ; oxygen ; intercalation ; adsorption ; catalyst ; growth ; deactivation ; mechanisms |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000337497400033 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/144233]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China 2.Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Jin, Li,Fu, Qiang,Dong, Aiyi,et al. Surface Chemistry of CO on Ru(0001) under the Confinement of Graphene Cover[J]. journal of physical chemistry c,2014,118(23):12391-12398. |
| APA | Jin, Li.,Fu, Qiang.,Dong, Aiyi.,Ning, Yanxiao.,Wang, Zhoujun.,...&Bao, Xinhe.(2014).Surface Chemistry of CO on Ru(0001) under the Confinement of Graphene Cover.journal of physical chemistry c,118(23),12391-12398. |
| MLA | Jin, Li,et al."Surface Chemistry of CO on Ru(0001) under the Confinement of Graphene Cover".journal of physical chemistry c 118.23(2014):12391-12398. |
入库方式： OAI收割
来源：大连化学物理研究所
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