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题名: Cu-promoted Pt/activated carbon catalyst for glycerol oxidation to lactic acid
作者: Zhang, Chen1, 3;  Wang, Tao1;  Liu, Xiao1, 3;  Ding, Yunjie1, 2
关键词: Cu promoter ;  Pt ;  Glycerol ;  Oxidation ;  Lactic acid
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2016-12-01
DOI: 10.1016/j.molcata.2016.08.018
卷: 424, 页:91-97
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
英文摘要: A series of copper-promoted platinum supported on activated carbon (Cu-Pt/AC) catalysts were investigated for glycerol oxidation to lactic acid. The catalytic performance of 1.0%Pt/AC catalyst was greatly influenced by Cu loading (0.1-2.0 wt%). Among them, the 0.5%Cu-1.0%Pt/AC catalyst showed the best promotional effect, whose lactic acid yield was 2.4 times of that on 1.0%Pt/AC under same reaction conditions. Characterizations were carried out to explore the relationships between catalyst properties and reaction performances. TEM images show that the introduction of Cu improves the dispersion of Pt and Cu, and some Pt-Cu interfaces are detected by HR-TEM, which would facilitate the glycerol transformation. XPS and H2-TPR analyses reveal that good catalyst performance is related with not only a proper surface Pt/Cu molar ratio, but also copper species' oxidation states. Cu+ and Cu-0 species favor glycerol conversion and lactic acid production, whereas large CuO particles facilitate the formation of glyceric acid. (C) 2016 Elsevier B.V. All rights reserved.
关键词[WOS]: SELECTIVE OXIDATION ;  METHANOL OXIDATION ;  CO OXIDATION ;  1,2-PROPANEDIOL ;  HYDROGENOLYSIS ;  EFFICIENT ;  CHEMOCATALYSIS ;  HYDROGENATION ;  PHOTOEMISSION ;  SPECTROSCOPY
语种: 英语
WOS记录号: WOS:000386739300011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150454
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, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, Chen,Wang, Tao,Liu, Xiao,et al. Cu-promoted Pt/activated carbon catalyst for glycerol oxidation to lactic acid[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2016,424:91-97.
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