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题名: Uniformly carbon-covered alumina and its surface characteristics
作者: Lin, L;  Lin, W;  Zhu, YX;  Zhao, BY;  Xie, YC;  Jia, GQ;  Li, C
通讯作者: 李灿
刊名: LANGMUIR
发表日期: 2005-05-24
DOI: 10.1021/1047097d
卷: 21, 期:11, 页:5040-5046
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 503
产权排名: 2;6
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Multidisciplinary ;  Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: Uniformly carbon-covered alumina (CCA) was prepared via the carbonization of sucrose highly dispersed on the alumina surface. The CCA samples were characterized by XRD, XPS, DTA-TG, UV Raman, nitrogen adsorption experiments at 77 K, and rhodamine B (RB) adsorption in aqueous media. UV Raman spectra indicated that the carbon species formed were probably conjugated olefinic or polycyclic aromatic hydrocarbons, which can be considered molecular subunits of a graphitic plane. The N(2) adsorption isotherms, pore size distributions, and XPS results indicated that carbon was uniformly dispersed on the alumina surface in the as-prepared CCA. The carbon coverage and number of carbon layers in CCA could be controlled by the tuning of the sucrose content in the precursor and impregnation times. RB adsorption isotherms suggested that the monolayer adsorption capacity of RB on alumina increased drastically for the sample with uniformly dispersed carbon. The as-prepared CCA possessed the texture of alumina and the surface properties of carbon or both carbon and alumina depending on the carbon coverage.
关键词[WOS]: RESONANCE RAMAN-SPECTROSCOPY ;  POLYFURFURYL ALCOHOL ;  COKE FORMATION ;  SELECTIVE HYDROGENOLYSIS ;  RUTHENIUM CATALYSTS ;  MINERAL ADSORBENTS ;  POLYVINYL ACETATE ;  AMMONIA-SYNTHESIS ;  ADSORPTION ;  ZEOLITES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000229243800043
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/93035
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Peking Univ, State Key Lab Struct Chem Unstable & Stable Speci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Lin, L,Lin, W,Zhu, YX,et al. Uniformly carbon-covered alumina and its surface characteristics[J]. LANGMUIR,2005,21(11):5040-5046.
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