中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Synthesis, Characterization, and Catalytic Application of Highly Ordered Mesoporous Alumina-Carbon Nanocomposites

文献类型:期刊论文

作者Xu, Jinming1,2; Wang, Aiqin1; Wang, Xiaodong1; Su, Dangsheng3; Zhang, Tao1
刊名nano research
出版日期2011
卷号4期号:1页码:50-60
关键词Nanocomposite mesoporous alumina carbon cellulose
ISSN号1998-0124
产权排序1,1
通讯作者张涛
中文摘要synthesis, characterization, and catalytic application of highly ordered mesoporous alumina-carbon nanocomposites
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.
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 ; physics, applied
研究领域[WOS]chemistry ; science & technology - other topics ; materials science ; physics
关键词[WOS]ethylene-glycol ; carbide catalysts ; conversion ; cellulose ; nanoparticles ; composites ; frameworks ; clusters ; support ; silica
收录类别SCI
语种英语
WOS记录号WOS:000287973600004
公开日期2012-07-09
源URL[http://159.226.238.44/handle/321008/115801]  
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, 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
推荐引用方式
GB/T 7714
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.
APA Xu, Jinming,Wang, Aiqin,Wang, Xiaodong,Su, Dangsheng,&Zhang, Tao.(2011).Synthesis, Characterization, and Catalytic Application of Highly Ordered Mesoporous Alumina-Carbon Nanocomposites.nano research,4(1),50-60.
MLA Xu, Jinming,et al."Synthesis, Characterization, and Catalytic Application of Highly Ordered Mesoporous Alumina-Carbon Nanocomposites".nano research 4.1(2011):50-60.

入库方式: OAI收割

来源:大连化学物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。