一种液体吸附原位红外表征系统

郭艳; 许传芝; 王嘉; 张乐芬; 牛建中

doi:10.16495/j.1006-3757.2023.02.012

一种液体吸附原位红外表征系统

doi: 10.16495/j.1006-3757.2023.02.012

中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室，甘肃兰州　730000

基金项目: 中国科学院兰州资源环境科学大型仪器区域中心仪器设备功能开发技术创新项目（lz202074）

详细信息

作者简介:
郭艳（1984−），女，工程师，从事分子光谱分析测试相关工作，E-mail：gouyan@licp.cas.cn

通讯作者:
牛建中（1963−），男，正高级工程师，从事大型仪器相关工作，E-mail：njz@licp.cas.cn

中图分类号: O657. 33; TH74
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- 文章访问数: 47
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- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2022-11-26
- 录用日期: 2023-05-26
- 修回日期: 2023-05-26
- 刊出日期: 2023-06-30

In-Situ Infrared Characterization System of Liquid Adsorption

State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Funds: Lanzhou Regional Center for Resources and Environment Science, Chinese Academy of Sciences, Large-Scale Instrument Function Development Technology Innovation Project (lz202074)

摘要

摘要: 将液体吸附原位红外表征系统与红外光谱仪连接，是实现原位红外反应过程的重要技术环节. 原位红外表征过程中涉及的吸附液存储于液体吸附原位红外表征系统内，对一些沸点较高的液体可以通过加热套控温操作完成吸附，并在被测物质吸附反应过程中监测其结构变化. 系统可设置多个液体吸附池，实现在同一试验过程中进行多种液体切换吸附，满足被测物质吸附不同液体蒸汽的需求，还可以使被测物质吸附液体蒸汽，对固体表面进行惰性气体前处理或氢气还原处理. 最终通过原位红外监测出反应产物，实现液体吸附原位红外表征.
- 液体吸附 /
- 原位红外反应 /
- 吸附反应 /
- 结构变化
Abstract: Connecting the in-situ infrared characterization system of liquid adsorption with the infrared spectrometer is an important technical link to realize the in-situ infrared reaction process. In-situ infrared characterization process involves the adsorption liquid stored in the in-situ infrared characterization system of liquid adsorption, which can simultaneously complete the adsorption of some liquids with high boiling point by heating a set of temperature control operation, so as to achieve the monitoring of the structural changes during the adsorption reaction of the measured substances. A number of liquid adsorption tanks in the system can be set up, which can carry out a variety of liquid switching adsorption in the same experimental process to meet the adsorption of different liquid vapors by the substance under test, as well as the adsorption of liquid vapors by the substance under test and inert gas pretreatment or hydrogen reduction treatment on the solid surface. Finally, the reaction products were detected by the in-situ infrared monitoring, and the in-situ infrared characterization of the liquid adsorption was realized.
- liquid adsorption /
- in-situ infrared reaction /
- adsorption reaction /
- change of structure

HTML全文

图 1 液体吸附原位红外表征系统示意图

（1）（7）（9）液体吸附池，（2）液体吸附池顶盖，（3）进气管，（4）出气管，（5）（6）（19）~（23）管线，（8）加热套，（10）~（18）三通阀

Figure 1. Schematic of in-situ infrared liquid adsorption characterization system

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图 2 单一液体吸附池图

Figure 2. Diagram of single liquid adsorption tank

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图 3 液体吸附原位红外表征系统试验过程

Figure 3. Experimental process of in-situ infrared characterization system of liquid adsorption

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图 4 MOF复合物CO₂光还原过程

Figure 4. Carbon dioxide photoreduction process of MOF complex

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图 5 2-(四氢呋喃-2-基)乙酸甲酯在Ni/CeO₂与CeO₂表面的吸/脱附

Figure 5. Absorption/desorption of 2-(tetrahydrofuran-2-yl) methyl acetate on Ni/CeO₂ and CeO₂ surfaces

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参考文献(10)

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