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学科主题: 物理化学
题名: Bifunctionalized Hollow Nanospheres for the One-Pot Synthesis of Methyl Isobutyl Ketone from Acetone
作者: Wang, Peng1, 2;  Bai, Shiyang1, 2;  Zhao, Jiao1, 2;  Su, Panpan1, 2;  Yang, Qihua1;  Li, Can1
通讯作者: 杨启华
关键词: electron microscopy ;  heterogeneous catalysis ;  nanotechnology ;  nmr spectroscopy ;  synthetic methods
刊名: CHEMSUSCHEM
发表日期: 2012
DOI: 10.1002/cssc.201200383
卷: 5, 期:12, 页:2390-2396
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 506;503
产权排名: 1,1
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Pd-doped propyl sulfonic acid-functionalized hollow nanospheres proved to be efficient bifunctionalized catalysts for the one-pot synthesis of methyl isobutyl ketone (MIBK) from acetone and hydrogen in liquid phase. These hollow nanospheres exhibited a higher activity than their bulk mesoporous counterparts (SBA-15 or FDU-12), mainly due to the short diffusion resistance of hollow nanospheres. Hollow nanospheres with silica frameworks showed higher activity and selectivity for MIBK than those with ethane-bridged frameworks, suggesting that hollow nanospheres with hydrophilic surface properties favor the formation of MIBK. This is probably due to the increased affinity of the hydrophilic surface towards acetone and its decreased affinity towards MIBK, which precludes deep condensation of MIBK with acetone. Under optimal conditions, up to 90?% selectivity for MIBK can be obtained with conversions of acetone as high as 43?%. This result is among the best reported so far for mesoporous silica-based catalysts. The control/fine-tuning of morphology and surface properties provides an efficient strategy for improving the catalytic performance of solid catalysts.
关键词[WOS]: ONE-STEP SYNTHESIS ;  MESOPOROUS SILICA ;  HETEROGENEOUS CATALYSTS ;  HYBRID MATERIALS ;  ACID GROUPS ;  SPHERES ;  SHELL ;  HYDROPHOBICITY ;  HYDROGENATION ;  ADSORPTION
语种: 英语
WOS记录号: WOS:000312220300015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118213
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 Sch, Beijing 100049, Peoples R China

Recommended Citation:
Wang, Peng,Bai, Shiyang,Zhao, Jiao,et al. Bifunctionalized Hollow Nanospheres for the One-Pot Synthesis of Methyl Isobutyl Ketone from Acetone[J]. CHEMSUSCHEM,2012,5(12):2390-2396.
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