Enhanced Surface Area and Gas Uptake in Porous Polymer Networks Activated by Supercritical Carbon Dioxide Exchange

Zi-yan JIA; Da-qiang YUAN

doi:10.14028/j.cnki.1003-3726.2018.06.007

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Enhanced Surface Area and Gas Uptake in Porous Polymer Networks Activated by Supercritical Carbon Dioxide Exchange

更新时间：2022-09-05

- Enhanced Surface Area and Gas Uptake in Porous Polymer Networks Activated by Supercritical Carbon Dioxide Exchange
- Polymer Bulletin Vol. 31, Issue 6, Pages: 66-71(2018)
- 作者机构：
  
  中国科学院福建物质结构研究所, 结构化学国家重点实验室, 福州 350002
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2018.06.007
  CLC：
- Published：20 June 2018，
  
  Received：29 January 2018，
  
  Revised：22 March 2018，
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Zi-yan JIA, Da-qiang YUAN. Enhanced Surface Area and Gas Uptake in Porous Polymer Networks Activated by Supercritical Carbon Dioxide Exchange. [J]. Polymer Bulletin 31(6):66-71(2018)
DOI：

Zi-yan JIA, Da-qiang YUAN. Enhanced Surface Area and Gas Uptake in Porous Polymer Networks Activated by Supercritical Carbon Dioxide Exchange. [J]. Polymer Bulletin 31(6):66-71(2018) DOI： 10.14028/j.cnki.1003-3726.2018.06.007.

摘要

以多孔有机聚合物PPN-1（Porous polymer networks）为研究对象，分别采用两种不同的活化方式，即传统的溶剂交换-真空热处理活化和超临界二氧化碳活化，得到了两种多孔有机聚合物CON-PPN-1（Conventional method activated PPN-1）和SC-PPN-1（Supercritical carbon dioxide activated PPN-1）。与CON-PPN-1相比，SC-PPN-1更为蓬松，而且颜色更浅。通过红外、固体核磁、扫描电镜以及气体吸附等手段，表征了CON-PPN-1和SC-PPN-1的孔道结构和吸附性能。结果表明，SC-PPN-1的比表面积高达2052m

·g

-1

，比CON-PPN-1的比表面积（1744m

·g

-1

）增长了近18%。此外，SC-PPN-1对氢气和二氧化碳的吸附容量都有明显的提高。

Abstract

Two different activation methods

conventional solvent exchange-vacuum heat treatment and supercritical carbon dioxide exchange

were used to activate PPN-1 to get the corresponding samples

CON-PPN-1 and SC-PPN-1. Compared with CON-PPN-1

color and morphology of SC-PPN-1 changed much. Porosity and adsorption property of the two samples were further characterized by FT-IR、

C-NMR、SEM and N

sorption. Gas sorption experiments revealed that SC-PPN-1 has a higher surface area up to 2052m

·g

-1

about 18% rise than 1744m

·g

-1

of CON-PPN-1. In addition

there is an obvious increase of adsorption capacity of hydrogen and carbon dioxide in SC-PPN-1.

关键词

多孔有机聚合物活化超临界二氧化碳比表面积气体吸附

Keywords

Porous polymer networksTraditional activationSupercritical carbon dioxideSurface areaGas uptake

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