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学科主题: 物理化学
题名: Synthesis, Characterization, and Catalytic Application of Highly Ordered Mesoporous Alumina-Carbon Nanocomposites
作者: Xu, Jinming1, 2;  Wang, Aiqin1;  Wang, Xiaodong1;  Su, Dangsheng3;  Zhang, Tao1
通讯作者: 张涛
关键词: Nanocomposite ;  mesoporous ;  alumina ;  carbon ;  cellulose
刊名: NANO RESEARCH
发表日期: 2011
DOI: 10.1007/s12274-010-0038-0
卷: 4, 期:1, 页:50-60
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1501
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
摘要: Synthesis, Characterization, and Catalytic Application of Highly Ordered Mesoporous Alumina-Carbon Nanocomposites
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: Highly ordered mesoporous carbon-alumina nanocomposites (OMCA) have been synthesized for the first time by a multi-component co-assembly method followed by pyrolysis at high temperatures. In this synthesis, resol phenol-formaldehyde resin (PF resin) and alumina sol were respectively used as the carbon and alumina precursors and triblock copolymer Pluronic F127 as the template. N-2-adsorption measurements, X-ray diffraction, and transmission electron microscopy revealed that, with an increase of the alumina content in the nanocomposite from 11 to 48 wt.%, the pore size increased from 2.9 to 5.0 nm while the ordered mesoporous structure was retained. Further increasing the alumina content to 53 wt.% resulted in wormhole-like structures, although the pore size distribution was still narrow. The nanocomposite walls are composed of continuous carbon and amorphous alumina, which allows the ordered mesostructure to be well preserved even after the removal of alumina by HF etching or the removal of carbon by calcination in air. The OMCA nanocomposites exhibited good thermostability below 1000 degrees C; at higher temperatures the ordered mesostructure partially collapsed, associated with a phase transformation from amorphous alumina into gamma-Al2O3. OMCA-supported Pt catalysts exhibited excellent performance in the one-pot transformation of cellulose into hexitols thanks to the unique surface properties of the nanocomposite.
关键词[WOS]: ETHYLENE-GLYCOL ;  CARBIDE CATALYSTS ;  CONVERSION ;  CELLULOSE ;  NANOPARTICLES ;  COMPOSITES ;  FRAMEWORKS ;  CLUSTERS ;  SUPPORT ;  SILICA
语种: 英语
WOS记录号: WOS:000287973600004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115801
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.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Max Planck Soc, Fritz Haber Inst, D-14195 Berlin, Germany

Recommended Citation:
Xu, Jinming,Wang, Aiqin,Wang, Xiaodong,et al. Synthesis, Characterization, and Catalytic Application of Highly Ordered Mesoporous Alumina-Carbon Nanocomposites[J]. NANO RESEARCH,2011,4(1):50-60.
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