Selective Hydrogenation of Cinnamaldehyde to Cinnamal Alcohol over Platinum/Graphene Catalysts

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	Selective Hydrogenation of Cinnamaldehyde to Cinnamal Alcohol over Platinum/Graphene Catalysts
	X. W. Ji; X. Y. Niu; B. Li; Q. Han; F. L. Yuan; F. Zaera; Y. J. Zhu; H. G. Fu
	2014
发表期刊	Chemcatchem
ISSN	1867-3880
卷号	6 期号:11 页码:3246-3253
摘要	Catalysts made of Pt nanoparticles dispersed on graphene (X wt% Pt/G, X=2.0, 3.5, and 5.0) were prepared and characterized by XRD, Raman spectroscopy, BET surface area measurements, TEM, and X-ray photoelectron spectroscopy (XPS), and a 3.5 wt% Pt supported on Vulcan Carbon catalyst (3.5 wt% Pt/VC) was included as a reference. Although the mean Pt nano-particle size is approximately 4.4 nm for all X wt% Pt/G and 3.5 wt% Pt/VC catalysts, cinnamal alcohol was produced with high selectivity only with the graphene-supported catalysts: 92% conversion and 88% selectivity toward cinnamal alcohol were obtained with 3.5 wt% Pt/G. This catalyst also showed good stability in recycling tests. The good selectivity observed with the graphene-based catalysts is attributed to the higher fraction of reduced surface Pt-0 atoms seen on the surface of the Pt nanoparticles (determined by XPS). This interpretation is consistent with DFT calculations. Additional p-p interactions between cinnamaldehyde and graphene may also play a role in the selective hydrogenation of cinnamaldehyde.
部门归属	[ji, xiwang ; niu, xiaoyu ; han, qing ; yuan, fulong ; zhu, yujun ; fu, honggang] heilongjiang univ, sch chem & mat, minist educ, key lab funct inorgan mat chem, harbin 150080, peoples r china. [zaera, francisco] univ calif riverside, dept chem, riverside, ca 92521 usa. [li, bo] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; li, b (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; boli@imr.ac.cn ; zaera@ucr.edu ; yujunzhu@hlju.edu.cn
关键词	Graphene Heterogeneous Catalysis Hydrogenation Platinum Supported Catalysts Reduced Graphene Oxide Total-energy Calculations Augmented-wave Method Alpha,Beta-unsaturated Aldehydes Chemoselective Hydrogenation Unsaturated Aldehydes Phase Hydrogenation Supported Platinum Carbon Nanotubes Heterogeneous Catalysis
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73250
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. W. Ji,X. Y. Niu,B. Li,et al. Selective Hydrogenation of Cinnamaldehyde to Cinnamal Alcohol over Platinum/Graphene Catalysts[J]. Chemcatchem,2014,6(11):3246-3253.
APA	X. W. Ji.,X. Y. Niu.,B. Li.,Q. Han.,F. L. Yuan.,...&H. G. Fu.(2014).Selective Hydrogenation of Cinnamaldehyde to Cinnamal Alcohol over Platinum/Graphene Catalysts.Chemcatchem,6(11),3246-3253.
MLA	X. W. Ji,et al."Selective Hydrogenation of Cinnamaldehyde to Cinnamal Alcohol over Platinum/Graphene Catalysts".Chemcatchem 6.11(2014):3246-3253.