Siliceous tin phosphates as effective bifunctional catalysts for selective conversion of dihydroxyacetone to lactic acid | |
Wang, Xincheng1; Liang, Fengbing2; Huang, Chongpin1; Li, Yingxia1; Chen, Biaohua1 | |
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. |
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