Siliceous tin phosphates as effective bifunctional catalysts for selective conversion of dihydroxyacetone to lactic acid

doi:10.1039/c6cy00553e

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	Siliceous tin phosphates as effective bifunctional catalysts for selective conversion of dihydroxyacetone to lactic acid
	Wang, Xincheng 1; Liang, Fengbing 2; Huang, Chongpin 1; Li, Yingxia 1; Chen, Biaohua 1
	2016
发表期刊	CATALYSIS SCIENCE & TECHNOLOGY
卷号	6 期号:17 页码:6551-6560
摘要	Methods to catalytically convert carbohydrates into lactic acid (LA), which is a versatile platform chemical, have been widely investigated. In this study, siliceous tin phosphates were utilized as reusable Bronsted-Lewis acid bifunctional catalysts during the conversion of 1,3-dihydroxyacetone (DHA) to LA under hydrothermal conditions. The product distribution closely depended on the reaction temperature, catalyst loading and substrate concentration. The highest LA yield of 93.8% was achieved with a complete DHA conversion at 140 degrees C after 5 h. The reaction was facilitated by the vast presence of Bronsted and Lewis acid sites that were confirmed by both pyridine FTIR and NH3-TPD analysis. The incorporation of silica significantly lowered the Sn content and improved the thermal stability of the tin phosphate catalysts. A possible reaction mechanism was proposed in that the Lewis and Bronsted acid sites synergistically catalyzed the conversion of pyruvaldehyde to LA, which was found to be the rate-determining step. The method allows for facile catalyst separation and recycling while expanding the applicability of silica in the field of biomass-to-chemical conversion.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c6cy00553e
关键词[WOS]	RAY PHOTOELECTRON-SPECTROSCOPY ; TIN(IV) PHOSPHATE ; METHYL LACTATE ; TRIOSE SUGARS ; BIOMASS ; GLUCOSE ; WATER ; CHEMOCATALYSIS ; ISOMERIZATION ; NANOPARTICLES
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
项目资助者	National Natural Science Foundation of China(21476021)
WOS类目	Chemistry, Physical
WOS记录号	WOS:000382025300012
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/8436
专题	生物基材料组群
作者单位	1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xincheng,Liang, Fengbing,Huang, Chongpin,et al. Siliceous tin phosphates as effective bifunctional catalysts for selective conversion of dihydroxyacetone to lactic acid[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(17):6551-6560.
APA	Wang, Xincheng,Liang, Fengbing,Huang, Chongpin,Li, Yingxia,&Chen, Biaohua.(2016).Siliceous tin phosphates as effective bifunctional catalysts for selective conversion of dihydroxyacetone to lactic acid.CATALYSIS SCIENCE & TECHNOLOGY,6(17),6551-6560.
MLA	Wang, Xincheng,et al."Siliceous tin phosphates as effective bifunctional catalysts for selective conversion of dihydroxyacetone to lactic acid".CATALYSIS SCIENCE & TECHNOLOGY 6.17(2016):6551-6560.