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题名: A highly active and stable Pd-TiO2/CDC-SiC catalyst for hydrogenation of 4-carboxybenzaldehyde
作者: Zhou, Yonghua1, 2;  Li, Xingyun1;  Pan, Xiulian1;  Bao, Xinhe1
刊名: JOURNAL OF MATERIALS CHEMISTRY
发表日期: 2012
DOI: 10.1039/c2jm31503c
卷: 22, 期:28, 页:14155-14159
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: Carbon has been widely used as a catalyst support and adsorbent in industry. However, it suffers from poor stability due to its limited mechanical strength, particularly under high pressures and temperatures. We report here a carbide derived carbon (CDC) layer on a porous SiC surface, which has the properties of high mechanical strength and is easy to shape. The CDC exhibits an amorphous structure and contains mainly mesopores with a BET surface area of 125 m(2) g(-1). The CDC-SiC composite yields a comparable performance to coconut activated carbon (AC) as a catalyst support in the probe reaction hydrogenation of 4-carboxybenzaldehyde. The further introduction of TiO2 nanoparticles enhances the activity and stability significantly because of the improved dispersion of Pd particles on CDC-SiC. The activity is 4 times higher than the Pd/AC catalyst. Pd-TiO2/CDC-SiC shows great promise as an alternative to the current AC supported Pd catalyst for the crude terephthalic acid hydropurification industry.
关键词[WOS]: TEREPHTHALIC ACID ;  SILICON-CARBIDE ;  NANOPARTICLES ;  PURIFICATION ;  DISPERSION
语种: 英语
WOS记录号: WOS:000305796300043
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143034
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, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Cent S Univ, Chem & Chem Engn Coll, Changsha 410083, Peoples R China

Recommended Citation:
Zhou, Yonghua,Li, Xingyun,Pan, Xiulian,et al. A highly active and stable Pd-TiO2/CDC-SiC catalyst for hydrogenation of 4-carboxybenzaldehyde[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(28):14155-14159.
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