A mechanism study on the efficient conversion of cellulose to acetol over Sn-Co catalysts with low Sn content
文献类型：期刊论文
| 作者 | Liu, Xiaohao2,3; Liu, Xiaodong1; Wang, Haiyong2; Xiao, Tianci1; Zhang, Ying1; Ma, Longlong2,3
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| 刊名 | GREEN CHEMISTRY
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| 出版日期 | 2020-10-07 |
| 卷号 | 22期号:19页码:6579-6587 |
| ISSN号 | 1463-9262 |
| DOI | 10.1039/d0gc02345k |
| 通讯作者 | Zhang, Ying(zhzhying@ustc.edu.cn) ; Ma, Longlong(mall@ms.giec.ac.cn) |
| 英文摘要 | Efficient conversion of renewable cellulose to high value-added C3 chemicals is a great challenge in the field of biomass valorization. In this work, we found that the combination of Co and Sn could significantly improve the efficiency of cellulose conversion to acetol. 54.4% yield of acetol and 66.6% total yield of C3 products were obtained when using 2%Sn-10%Co/SiO2(2 wt% Sn content) as a catalyst. However, using the same Sn content of 2%Sn-10%Ni/SiO2, no acetol and only 7.1% yield of C3 products were produced. By studying the effects of different Sn and Co concentrations on cellulose conversion, it was found that the Sn species play an important role in catalyzing glucose conversion to C3 intermediates, while Co mainly played a role in hydrogenation, the same as Ni. The study demonstrated that Sn-Co/SiO(2)with low Sn content can convert glucose to C3 intermediates more efficiently than the Sn-Ni/SiO(2)catalyst. Moreover, Sn-Co/SiO(2)could effectively convert C3 intermediates to acetol at a high temperature which is essential for acetol production from cellulose; but under the same conditions, the Sn-Ni/SiO(2)catalyst tended to catalyze the polymerization of C3 intermediates. A series of characterization methods including AAS, TEM, HRTEM, EDS, XRD,ex situXPS,in situXPS, and CO2-TPD found that the combination of Sn and Co could significantly increase the noninteger valent SnO(x)species in the catalyst. These species increased the basicity of the catalyst and were beneficial in catalyzing the isomerization of glucose and the retro-aldol condensation of fructose. |
| WOS关键词 | METAL-SUPPORT INTERACTIONS ; LACTIC-ACID ; BIOMASS ; HYDROXYACETONE ; TRANSFORMATION ; ETHANOL |
| 资助项目 | National Key R&D Program of China[2018 YFB1501502] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000575015700028 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Key R&D Program of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/32134]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhang, Ying; Ma, Longlong |
| 作者单位 | 1.Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Key Lab New & Renewable Energy Res & De, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiaohao,Liu, Xiaodong,Wang, Haiyong,et al. A mechanism study on the efficient conversion of cellulose to acetol over Sn-Co catalysts with low Sn content[J]. GREEN CHEMISTRY,2020,22(19):6579-6587. |
| APA | Liu, Xiaohao,Liu, Xiaodong,Wang, Haiyong,Xiao, Tianci,Zhang, Ying,&Ma, Longlong.(2020).A mechanism study on the efficient conversion of cellulose to acetol over Sn-Co catalysts with low Sn content.GREEN CHEMISTRY,22(19),6579-6587. |
| MLA | Liu, Xiaohao,et al."A mechanism study on the efficient conversion of cellulose to acetol over Sn-Co catalysts with low Sn content".GREEN CHEMISTRY 22.19(2020):6579-6587. |
入库方式： OAI收割
来源：广州能源研究所
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