Nanofibrous and Graphene-Templated Conjugated Microporous Polymer Materials for Flexible Chemosensors and Supercapacitors

Author(s)

Kai Yuan, Peiyang Wang-Guo, Ting Hu, Lei Shi, Rong Zeng, Michael Forster, Thomas Pichler, Yiwang Chen, Ullrich Scherf

Abstract

Conjugated microporous polymers (CMPs) are usually obtained as amorphous

or semicrystalline powders. Their insolubility and nonprocessability

are considered as key bottlenecks that impede CMP applications. In this

study, light-emitting, nanofibrous films were fabricated by

electrospinning CMP/poly(lactic acid) (PLA) mixtures. The resulting

nanofibrous films show a high flexibility combined with high porosity

and surface-area-to-volume ratios. The CMP-based nanofibrous films have

been used as sensitive sensors in the detection of nitroaromatic and

benzoquinone vapors as well as oxidizing metal ions. Moreover,

4-iodophenyl-substituted graphene sheets were used as templates for

growing CMP/graphene sandwiches. The graphene-based CMP (G-CMP)

sandwiches are characterized by high surface areas and aspect ratios.

Furthermore, hierarchically porous two-dimensional carbon nanosheets

were obtained by pyrolysis of these carbon-rich G-CMP hybrids. The

resulting carbon nanomaterials show excellent supercapacitor behavior

with a 48% increased capacitance if compared to porous carbons without

the graphene template.

Organisation(s)

Electronic Properties of Materials

External organisation(s)

Nanchang University, Bergische Universität Wuppertal

Journal

Chemistry of Materials

Volume

Pages

7403–7411

No. of pages

ISSN

0897-4756

DOI

https://doi.org/10.1021/acs.chemmater.5b03290

Publication date

11-2015

Peer reviewed

Yes

Austrian Fields of Science 2012

104003 Inorganic chemistry

Keywords

ASJC Scopus subject areas

Materials Chemistry, Chemical Engineering(all), Chemistry(all)

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