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A molecular-templating strategy to polyamine-incorporated porous organic polymers for unprecedented CO2 capture and separation

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  • ReceivedJun 30, 2018
  • AcceptedAug 6, 2018
  • PublishedSep 6, 2018

Abstract

本论文用简单、通用的分子模板策略制备了具有极高CO2吸附与分离效率的多胺注入多孔有机聚合物(POPs). 在该策略中, CO2分子存在下, 多胺能均匀分散在母体多孔材料中. CO2模板分子能够产生有效的均匀分布孔, 能允许CO2分子进入但不允许其他较大分子如N2和CH4进入. 在0.15 bar323 K下, 制备的PPN-6/PEI-165展现出超高的4.52 mmol g−1 CO2吸附量且没有检测到N2和CH4吸附. 此外, 该材料对水汽稳定且温和条件(343K下真空)下易再生. 据我们所知, 该结果在迄今为止所报道的固体多孔吸附剂中有最好的CO2选择性捕获性能.


Funded by

the financial support from the National Natural Science Funding of China(51672289,21725101,21673213,21521001)

the aided program for science and technology innovative research team of Ningbo municipality(2014B81004)

Natural Science Funding of Zhejiang Province(LY15E020008)

the 973 program(2014CB931803)

Youth Innovation Promotion of CAS(2016272)


Acknowledgment

This work was supported by the National Natural Science Foundation of China (51672289, 21725101, 21673213 and 21521001), the Aided Program for Science and Technology Innovative Research Team of Ningbo Municipality (2014B81004), Natural Science Funding of Zhejiang Province (LY15E020008), the National Program on Key Basic Research Project of China (973 Program) (2014CB931803) and Youth Innovation Promotion of CAS (2016272).


Interest statement

The authors declare no conflict of interest.


Contributions statement

Kong C and Chen L conceived the idea and supervised the project; Zhao D and Du H designed and performed the experiments and collected the data; Zhao D and Kong C analyzed the data and co-wrote the paper; Chen L, Jiang HL, Yan Y and Wang Z discussed the results and commented the manuscript. All authors contributed to the general discussion.


Author information

Dechuan Zhao is a PhD candidate of biomedical engineering at Sichuan University. His research focuses on the design of porous materials for gas separation and catalysis.


Chunlong Kong is an associate professor in Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences. He obtained his PhD in chemistry from Dalian University of Technology, under the supervision of Prof. Jinqu Wang. He then did postdoctoral studies with Prof. Toshinori Tsuru at the Department of Chemical Engineering, Hiroshima University. His current research focuses on the design of porous materials for gas separation, storage and catalysis.


Hai-Long Jiang received his PhD in 2008 from Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences and then worked at AIST (Japan) as a postdoc and JSPS fellow in 2008–2011. After a postdoctoral stint at Texas A&M University (USA), he accepted a full professorship to start his independent career at the University of Science and Technology of China in 2013. His main research interest is in the development of crystalline porous and nanostructured materials, crossing coordination chemistry and nanoscience, for energy-/environment-related catalysis.


Liang Chen received his BSc in applied chemistry from Nanjing University in 2001 and PhD from the Department of Chemical Engineering at the University of Pittsburgh and National Energy Technology Lab in 2006. He then spent one year as a postdoctoral fellow at Air Products and Chemicals, Inc. working on a hydrogen storage project supported by the US Department of Energy. Currently, he is a professor in Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences. His research is focused on the design and development of novel porous materials for gas sorption, separation and catalysis.


Supplement

Supplementary information

Experimental section; characterization of PPN-6/PEI solid adsorbents; gas adsorption properties of PPN-6/PEI adsorbents; stability and regenerability of PPN-6/PEI adsorbents; gas adsorption properties of MOF/PEI solid adsorbents; regeneration of PPN-6/PEI adsorbents; Table S1; Table S2; Table S3. These materials are available in the online version of the paper.


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  • Figure 1

    Schematic description for the fabrication of POP/PEI adsorbents by the traditional (I) and MT (II) methods, respectively.

  • Figure 2

    CO2 adsorption isotherms of PPN-6 (★), PPN-6/PEI-125 prepared by the traditional method (hollow △), and PPN-6/PEI-125 prepared by the MT method (solid) with a CO2 pressure of 0.05 bar (◆), 0.3 bar (■), 0.5 bar (▲) and 1.0 bar (●), respectively, at 323 K.

  • Figure 3

    CO2 adsorption isotherms of PPN-6 (★), PPN-6/PEI-75 (□/■), PPN-6/PEI-100 (○/●), PPN-6/PEI-125 (△/▲), PPN-6/PEI-140 (◆), PPN-6/PEI-165 (Ã) samples prepared by the traditional (hollow) and MT (solid) methods, respectively, at 323 K.

  • Figure 4

    Cycles of adsorption and breakthrough curves. Cycles of CO2 adsorption isotherms (a) and breakthrough curves with an equimolar CO2/N2 and CO2/CH4 mixtures (b) of PPN-6/PEI-140 at 323 K.

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