Hydrogen storage properties of highly cross-linked polymers derived from chlorinated polypropylene and polyethylenimine

Saisai Chen, Jin Liu, Zhen Li, Huanting Wang, Xianbiao Wang, Yongfei Xu

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Highly cross-linked polymer derived from chlorinated polypropylene (CPP) grafted with polyethylenimine (PEI) was synthesized by hydrothermal amination reaction. The influence of different reaction conditions on the structure and properties of highly cross-linked polymer was investigated. The structures of the polymers named CPP-g-PEI were characterized by Fourier transform infrared (FT-IR) spectroscopy, elemental analysis (EA), 13C solid-state NMR (13C NMR), thermogravimetric analysis (TG), scanning electron microscopy (SEM), transmission electron microscope (TEM), powder X-ray diffraction (PXRD) and nitrogen sorption technique. CPP-g-PEI had honeycomb-like pores with an average size of between 5.37 and 13.54 nm and was thermally stable up to 250 °C. CPP-g-PEI was amorphous porous polymer with some spherulites. The N content of CPP-g-PEI increased and the Cl content of CPP-g-PEI decreased after hydrothermal amination reaction. The hydrogen storage properties of different CPP-g-PEI samples were determined by a hydrogen storage analyzer. Among all samples, hydrogen storage capacity of CPP-g-PEI at 100 °C and triethylamine solvent (CPP-g-PEI-2) achieved the highest hydrogen uptake 11.26 wt% at 77 K, 5 MPa. In addition, OH- type CPP-g-PEI (CPP-g-PEIOH-) exhibited a hydrogen uptake of 2.47 wt% at 300 K, 5 MPa. BET specific surface area of the sample was not directly associated with hydrogen storage capacity. Hydrogen adsorption enthalpy of CPP-g-PEI-2 was calculated by the Arrhenius equation to be 38.79 kJ/mol and the adsorption process of CPP-g-PEI was investigated to be reversible physical adsorption.

Original languageEnglish
Pages (from-to)23028-23034
Number of pages7
JournalInternational Journal of Hydrogen Energy
DOIs
Publication statusPublished - 7 Sep 2017

Keywords

  • Amination
  • Chlorinated polypropylene graft polyethylenimine
  • Cross-linked polymers
  • Hydrogen storage
  • Porous polymers

Cite this

@article{1cdc1258a6a44fe997af99af3c314168,
title = "Hydrogen storage properties of highly cross-linked polymers derived from chlorinated polypropylene and polyethylenimine",
abstract = "Highly cross-linked polymer derived from chlorinated polypropylene (CPP) grafted with polyethylenimine (PEI) was synthesized by hydrothermal amination reaction. The influence of different reaction conditions on the structure and properties of highly cross-linked polymer was investigated. The structures of the polymers named CPP-g-PEI were characterized by Fourier transform infrared (FT-IR) spectroscopy, elemental analysis (EA), 13C solid-state NMR (13C NMR), thermogravimetric analysis (TG), scanning electron microscopy (SEM), transmission electron microscope (TEM), powder X-ray diffraction (PXRD) and nitrogen sorption technique. CPP-g-PEI had honeycomb-like pores with an average size of between 5.37 and 13.54 nm and was thermally stable up to 250 °C. CPP-g-PEI was amorphous porous polymer with some spherulites. The N content of CPP-g-PEI increased and the Cl content of CPP-g-PEI decreased after hydrothermal amination reaction. The hydrogen storage properties of different CPP-g-PEI samples were determined by a hydrogen storage analyzer. Among all samples, hydrogen storage capacity of CPP-g-PEI at 100 °C and triethylamine solvent (CPP-g-PEI-2) achieved the highest hydrogen uptake 11.26 wt{\%} at 77 K, 5 MPa. In addition, OH- type CPP-g-PEI (CPP-g-PEIOH-) exhibited a hydrogen uptake of 2.47 wt{\%} at 300 K, 5 MPa. BET specific surface area of the sample was not directly associated with hydrogen storage capacity. Hydrogen adsorption enthalpy of CPP-g-PEI-2 was calculated by the Arrhenius equation to be 38.79 kJ/mol and the adsorption process of CPP-g-PEI was investigated to be reversible physical adsorption.",
keywords = "Amination, Chlorinated polypropylene graft polyethylenimine, Cross-linked polymers, Hydrogen storage, Porous polymers",
author = "Saisai Chen and Jin Liu and Zhen Li and Huanting Wang and Xianbiao Wang and Yongfei Xu",
year = "2017",
month = "9",
day = "7",
doi = "10.1016/j.ijhydene.2017.07.101",
language = "English",
pages = "23028--23034",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier",

}

Hydrogen storage properties of highly cross-linked polymers derived from chlorinated polypropylene and polyethylenimine. / Chen, Saisai; Liu, Jin; Li, Zhen; Wang, Huanting; Wang, Xianbiao; Xu, Yongfei.

In: International Journal of Hydrogen Energy, 07.09.2017, p. 23028-23034.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Hydrogen storage properties of highly cross-linked polymers derived from chlorinated polypropylene and polyethylenimine

AU - Chen, Saisai

AU - Liu, Jin

AU - Li, Zhen

AU - Wang, Huanting

AU - Wang, Xianbiao

AU - Xu, Yongfei

PY - 2017/9/7

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N2 - Highly cross-linked polymer derived from chlorinated polypropylene (CPP) grafted with polyethylenimine (PEI) was synthesized by hydrothermal amination reaction. The influence of different reaction conditions on the structure and properties of highly cross-linked polymer was investigated. The structures of the polymers named CPP-g-PEI were characterized by Fourier transform infrared (FT-IR) spectroscopy, elemental analysis (EA), 13C solid-state NMR (13C NMR), thermogravimetric analysis (TG), scanning electron microscopy (SEM), transmission electron microscope (TEM), powder X-ray diffraction (PXRD) and nitrogen sorption technique. CPP-g-PEI had honeycomb-like pores with an average size of between 5.37 and 13.54 nm and was thermally stable up to 250 °C. CPP-g-PEI was amorphous porous polymer with some spherulites. The N content of CPP-g-PEI increased and the Cl content of CPP-g-PEI decreased after hydrothermal amination reaction. The hydrogen storage properties of different CPP-g-PEI samples were determined by a hydrogen storage analyzer. Among all samples, hydrogen storage capacity of CPP-g-PEI at 100 °C and triethylamine solvent (CPP-g-PEI-2) achieved the highest hydrogen uptake 11.26 wt% at 77 K, 5 MPa. In addition, OH- type CPP-g-PEI (CPP-g-PEIOH-) exhibited a hydrogen uptake of 2.47 wt% at 300 K, 5 MPa. BET specific surface area of the sample was not directly associated with hydrogen storage capacity. Hydrogen adsorption enthalpy of CPP-g-PEI-2 was calculated by the Arrhenius equation to be 38.79 kJ/mol and the adsorption process of CPP-g-PEI was investigated to be reversible physical adsorption.

AB - Highly cross-linked polymer derived from chlorinated polypropylene (CPP) grafted with polyethylenimine (PEI) was synthesized by hydrothermal amination reaction. The influence of different reaction conditions on the structure and properties of highly cross-linked polymer was investigated. The structures of the polymers named CPP-g-PEI were characterized by Fourier transform infrared (FT-IR) spectroscopy, elemental analysis (EA), 13C solid-state NMR (13C NMR), thermogravimetric analysis (TG), scanning electron microscopy (SEM), transmission electron microscope (TEM), powder X-ray diffraction (PXRD) and nitrogen sorption technique. CPP-g-PEI had honeycomb-like pores with an average size of between 5.37 and 13.54 nm and was thermally stable up to 250 °C. CPP-g-PEI was amorphous porous polymer with some spherulites. The N content of CPP-g-PEI increased and the Cl content of CPP-g-PEI decreased after hydrothermal amination reaction. The hydrogen storage properties of different CPP-g-PEI samples were determined by a hydrogen storage analyzer. Among all samples, hydrogen storage capacity of CPP-g-PEI at 100 °C and triethylamine solvent (CPP-g-PEI-2) achieved the highest hydrogen uptake 11.26 wt% at 77 K, 5 MPa. In addition, OH- type CPP-g-PEI (CPP-g-PEIOH-) exhibited a hydrogen uptake of 2.47 wt% at 300 K, 5 MPa. BET specific surface area of the sample was not directly associated with hydrogen storage capacity. Hydrogen adsorption enthalpy of CPP-g-PEI-2 was calculated by the Arrhenius equation to be 38.79 kJ/mol and the adsorption process of CPP-g-PEI was investigated to be reversible physical adsorption.

KW - Amination

KW - Chlorinated polypropylene graft polyethylenimine

KW - Cross-linked polymers

KW - Hydrogen storage

KW - Porous polymers

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DO - 10.1016/j.ijhydene.2017.07.101

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JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

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