Selective hydrogenolysis of sorbitol on Ni/La2O2CO3 catalysts

ZHANG Tao; LIU Qiying; ZHANG Caihong; ZHANG Qi; MA Longlong

doi:10.11949/j.issn.0438-1157.20170043

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Selective hydrogenolysis of sorbitol on Ni/La₂O₂CO₃ catalysts

更新时间：2025-12-10

- Selective hydrogenolysis of sorbitol on Ni/La₂O₂CO₃ catalysts
- CIESC Journal Issue 6, Pages: 2359-2367(2017)
- 作者机构：
  
  1. 中国科学院广州能源研究所, 可再生能源与天然气水合物重点实验室,广东,广州,510640
  2. 中国科学技术大学纳米科学技术学院,江苏,苏州,215123
  3. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170043
  CLC： 643.3
- Online First：05 June 2017，
  
  Published：05 June 2017
- 稿件说明：
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ZHANG Tao, LIU Qiying, ZHANG Caihong, et al. Selective hydrogenolysis of sorbitol on Ni/La₂O₂CO₃ catalysts[J]. CIESC Journal, 2017, (6): 2359-2367. DOI: 10.11949/j.issn.0438-1157.20170043.
DOI：

ZHANG Tao, LIU Qiying, ZHANG Caihong, et al. Selective hydrogenolysis of sorbitol on Ni/La₂O₂CO₃ catalysts[J]. CIESC Journal, 2017, (6): 2359-2367. DOI: 10.11949/j.issn.0438-1157.20170043. DOI：

摘要

采用共沉淀法制备了具有协同稳定作用的Ni/La2O2CO3催化剂，用于山梨醇选择性氢解为小分子醇的研究。采用X射线衍射、氢气程序升温还原、CO2程序升温脱附和扫描电镜对催化剂进行了表征。考察了不同配比Ni、La的加氢位点和碱性调控对山梨醇氢解产物的影响。结果表明，Ni、La摩尔比为2：3时，山梨醇转化率达到98.6%，C2~C3多元醇的产率达到43.8%，催化剂经2次反应后对山梨醇的转化率仍高达90%。探究了催化剂从酸性到碱性调变过程中，山梨醇氢解的产物分布，并提出了反应路径。

Abstract

Ni/La2O2CO3 catalysts with different Ni/La ratios were prepared by co-precipitation and the performance was tested in selective hydrogenolysis of sorbitol to C2—C3 polyols. The catalysts were characterized by X-ray diffraction(XRD)

H2 temperature-programmed reduction(H2-TPR)

CO2 temperature-programmed desorption(CO2-TPD) and scanning electron microscopy(SEM). The effect of hydrogenation and base regulation was investigated by varying the Ni/La ratios. The result shows that the conversion of sorbitol was 98.6% and the yields of C2—C3 polyols was 43.8% when the mole ratio of Ni to La is 2:3. After two times of reaction

the catalyst still achieved a sorbitol conversion of 90%. From acidic to alkaline

the products distribution of hydrogenolysis of sorbitol was discussed. The reaction pathway was also proposed based on the experiment results.

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