Abstract
Conducting polymers with conjugated backbones have been widely used in electrochemical energy storage, catalysts, gas sensors and biomedical devices. In particular, two-dimensional (2D) mesoporous conducting polymers combine the advantages of mesoporous structure and 2D nanosheet morphology with the inherent properties of conducting polymers, thus exhibiting improved electrochemical performance. Despite the use of bottom-up self-assembly approaches for the fabrication of a variety of mesoporous materials over the past decades, the synchronous control of the dimensionalities and mesoporous architectures for conducting polymer nanomaterials remains a challenge. Here, we detail a simple, general and robust route for the preparation of a series of 2D mesoporous conducting polymer nanosheets with adjustable pore size (5â20 nm) and thickness (13â45 nm) and controllable morphology and composition via solution-based self-assembly. The synthesis conditions and preparation procedures are detailed to ensure the reproducibility of the experiments. We describe the fabrication of over ten high-quality 2D-ordered mesoporous conducting polymers and sandwich-structured hybrids, with tunable thickness, porosity and large specific surface area, which can serve as potential candidates for high-performance electrode materials used in supercapacitors and alkali metal ion batteries, and so on. The preparation time of the 2D-ordered mesoporous conducting polymer is usually no more than 12 h. The subsequent supercapacitor testing takes ~24 h and the Na ion battery testing takes ~72 h. The procedure is suitable for users with expertise in physics, chemistry, materials and other related disciplines.
Key points
-
The synthesis of two-dimensional mesoporous conducting polymer nanosheets, completed in aqueous solution at room temperature, entails micellar formation, followed by their ordered self-assembly on soft two-dimensional templates, the adsorption of monomers, the in situ polymerization of conducting polymer monomers and the removal of the templates.
-
The process is more flexible, tunable and cheaper than the alternative based on the reverse replication of hard templates.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 /Â 30Â days
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
Data availability
All data supporting the findings of this study are included in the article and the references listed in the Supplementary Information. Source data for the figures in this study are available at https://doi.org/10.6084/m9.figshare.22550017.
References
Shirakawa, H. et al. Synthesis of electrically conducting organic polymers: halogen derivatives of polyacetylene, (CH)x. J. Chem. Soc. Chem. Commun. 16, 578â580 (1977).
Jia, S. et al. Hierarchical metal-polymer hybrids for enhanced CO2 electroreduction. Angew. Chem. Int. Ed. 60, 10977â10982 (2021).
Liu, S. et al. Carbonized polyaniline activated peroxymonosulfate (PMS) for phenol degradation: role of PMS adsorption and singlet oxygen generation. Appl. Catal. B 286, 119921 (2021).
Nezakati, T. et al. Conductive polymers: opportunities and challenges in biomedical applications. Chem. Rev. 118, 6766â6843 (2018).
Xu, X. et al. Thermal transport in conductive polymer-based materials. Adv. Funct. Mater. 30, 1904704 (2020).
Luo, H. et al. Nanoarchitectured porous conducting polymers: from controlled synthesis to advanced applications. Adv. Mater. 33, 2007318 (2021).
Qin, J. et al. Hierarchical ordered dual-mesoporous polypyrrole/graphene nanosheets as bi-functional active materials for high-performance planar integrated system of micro-supercapacitor and gas sensor. Adv. Funct. Mater. 30, 1909756 (2020).
Tian, H. et al. General interfacial self-assembly engineering for patterning two-dimensional polymers with cylindrical mesopores on graphene. Angew. Chem. Int. Ed. Engl. 58, 10173â10178 (2019).
Yin, F. et al. Synthesis of mesoporous hollow polypyrrole spheres and the utilization as supports of high loading of Pt nanoparticles. Mater. Lett. 207, 225â229 (2017).
Wang, Q. et al. Mesoporous polyaniline film on ultra-thin graphene sheets for high performance supercapacitors. J. Power Sources 247, 197â203 (2014).
Wu, S. et al. Synthesis of mesoporous silica nanoparticles. Chem. Soc. Rev. 42, 3862â3875 (2013).
Park, S. et al. Hollow mesoporous functional hybrid materials: fascinating platforms for advanced applications. Adv. Funct. Mater. 28, 1703814 (2018).
Ren, Y. et al. Ordered mesoporous metal oxides: synthesis and applications. Chem. Soc. Rev. 41, 4909â4927 (2012).
Malgras, V. et al. Coalescence-driven verticality in mesoporous TiO2 thin films with long-range ordering. J. Am. Chem. Soc. 142, 15815â15822 (2020).
Guo, B. et al. Controlled synthesis of porous carbon nanostructures with tunable closed mesopores via a silica-assisted coassembly strategy. CCS Chem. 3, 1410â1422 (2021).
Dai, F. et al. Bottom-up synthesis of high surface area mesoporous crystalline silicon and evaluation of its hydrogen evolution performance. Nat. Commun. 5, 3605 (2014).
Zhao, T. et al. Interfacial assembly directed unique mesoporous architectures: from symmetric to asymmetric. Acc. Mater. Res. 1, 100â114 (2020).
Li, Q. et al. Ordered bicontinuous mesoporous polymeric semiconductor photocatalyst. ACS Nano 14, 13652â13662 (2020).
Fang, Y. et al. Growth of single-layered twoâdimensional mesoporous polymer/carbon films by selfâassembly of monomicelles at the interfaces of various substrates. Angew. Chem. Int. Ed. 127, 8545â8549 (2015).
Novoselov, K. S. et al. Room-temperature quantum Hall effect in graphene. Science 315, 1379â1379 (2007).
Li, W. et al. Phase transitions in 2D materials. Nat. Rev. Mater. 6, 829â846 (2021).
Schulman, D. et al. Contact engineering for 2D materials and devices. Chem. Soc. Rev. 47, 3037â3058 (2018).
Boota, M. et al. Pseudocapacitive electrodes produced by oxidantâfree polymerization of pyrrole between the layers of 2D titanium carbide (MXene). Adv. Mater. 28, 1517â1522 (2016).
Wang, X. et al. Ultrathin polypyrrole nanosheets via space-confined synthesis for efficient photothermal therapy in the second near-infrared window. Nano Lett. 18, 2217â2225 (2018).
Wang, J. et al. Electrochemical energy storage performance of 2D nanoarchitectured hybrid materials. Nat. Commun. 12, 3563 (2021).
Tian, H. et al. Growth of 2D mesoporous polyaniline with controlled pore structures on ultrathin MoS2 nanosheets by block copolymer self-assembly in solution. ACS Appl. Mater. Interfaces 9, 43975â43982 (2017).
Liu, Z. et al. High power inâplane microâsupercapacitors based on mesoporous polyaniline patterned graphene. Small 13, 1603388 (2017).
Zhang, Y. et al. Chargeâenriched strategy based on MXene-based polypyrrole layers toward dendrite-free zinc metal anodes. Adv. Energy Mater. 12, 2103979 (2022).
Li, X. et al. Synthesis of graphene films on copper foils by chemical vapor deposition. Adv. Mater. 28, 6247â6252 (2016).
Yang, H. et al. Free-standing and oriented mesoporous silica films grown at the air-water interface. Nature 381, 589â592 (1996).
Wei, F. et al. Soft template-mediated coupling construction of sandwiched mesoporous PPy/Ag nanoplates for rapid and selective NH3 sensing. J. Mater. Chem. A 9, 8308â8316 (2021).
Qin, J. et al. Achieving stable Na metal cycling via polydopamine/multilayer graphene coating of a polypropylene separator. Nat. Commun. 12, 5786 (2021).
Shi, H. et al. A two-dimensional mesoporous polypyrrole-graphene oxide heterostructure as a dual-functional ion redistributor for dendrite-free lithium metal anodes. Angew. Chem. Int. Ed. 132, 12245â12251 (2020).
Li, W. et al. Ordered mesoporous materials based on interfacial assembly and engineering. Adv. Mater. 25, 5129â5152 (2013).
Liu, S. et al. Patterning two-dimensional free-standing surfaces with mesoporous conducting polymers. Nat. Commun. 6, 8817 (2015).
Liu, S. et al. Dualâtemplate synthesis of 2D mesoporous polypyrrole nanosheets with controlled pore size. Adv. Mater. 28, 8365â8370 (2016).
Liu, S. et al. Twoâdimensional mesoscale-ordered conducting polymers. Angew. Chem. Int. Ed. 128, 12704â12709 (2016).
Wen, Y. et al. Constructing polymers towards ultrathin nanosheets with dual mesopores and intrinsic photoactivity. Chem. Commun. 56, 3191â3194 (2020).
Ai, Y. et al. General construction of 2D ordered mesoporous iron-based metal-organic nanomeshes. Small 16, 2002701 (2020).
Wei, F. et al. Controllably engineering mesoporous surface and dimensionality of SnO2 toward highâperformance CO2 electroreduction. Adv. Funct. Mater. 30, 2002092 (2020).
Wei, D. et al. A nanostructured electrochromic supercapacitor. Nano Lett. 12, 1857â1862 (2012).
Meng, Q. et al. Research progress on conducting polymer based supercapacitor electrode materials. Nano Energy 36, 268â285 (2017).
Hua, M. et al. Tough-hydrogel reinforced low-tortuosity conductive networks for stretchable and high-performance supercapacitors. Adv. Mater. 33, 2100983 (2021).
Zhao, Z. et al. Designing flexible, smart and self-sustainable supercapacitors for portable/wearable electronics: from conductive polymers. Chem. Soc. Rev. 50, 12702â12743 (2021).
Kurra, N. et al. Conducting polymer micro-supercapacitors for flexible energy storage and Ac line-filtering. Nano Energy 13, 500â508 (2015).
Goikolea, E. et al. Naâion batteriesâapproaching old and new challenges. Adv. Energy Mater. 10, 2002055 (2020).
Xiang, X. et al. Recent advances and prospects of cathode materials for sodiumâion batteries. Adv. Mater. 27, 5343â5364 (2015).
Deng, Y. et al. Ordered mesoporous silicas and carbons with large accessible pores templated from amphiphilic diblock copolymer poly (ethylene oxide)-b-polystyrene. J. Am. Chem. Soc. 129, 1690â1697 (2007).
Parviz, D. et al. Dispersions of non-covalently functionalized graphene with minimal stabilizer. ACS Nano 6, 8857â8867 (2012).
Shimizu, T. et al. Supramolecular nanotube architectures based on amphiphilic molecules. Chem. Rev. 105, 1401â1444 (2005).
Liu, S. et al. Soft-template construction of 3D macroporous polypyrrole scaffolds. Small 13, 1604099 (2017).
Parvez, K. et al. Exfoliation of graphite into graphene in aqueous solutions of inorganic salts. J. Am. Chem. Soc. 136, 6083â6091 (2014).
Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (grant nos. 51773062 and 61831021) and the ERC Grant on 2DMATER.
Author information
Authors and Affiliations
Contributions
S.L. and X.F. conceived and designed the experiments. S.L. performed the experiments. R.D. assisted the experiments. F.W., T.Z., Y.W. and W.L. drafted the manuscript and developed the protocol. All of the authors discussed the experiments and co-wrote the manuscript.
Corresponding authors
Ethics declarations
Competing interests
The authors declare no competing interests.
Peer review
Peer review information
Nature Protocols thanks the anonymous reviewers for their contribution to the peer review of this work.
Additional information
Publisherâs note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Related links
Key references using this protocol
Liu, S. et al. Nat. Commun. 6, 8817 (2015): https://doi.org/10.1038/ncomms9817
Liu, S. et al. Adv. Mater. 28, 8365â8370 (2016): https://doi.org/10.1002/adma.201603036
Liu, S. et al. Angew. Chem. Int. Ed. 128, 12704â12709 (2016): https://doi.org/10.1002/ange.201606988
Supplementary information
Supplementary Information
Supplementary Table 1.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Wei, F., Zhang, T., Dong, R. et al. Solution-based self-assembly synthesis of two-dimensional-ordered mesoporous conducting polymer nanosheets with versatile properties. Nat Protoc 18, 2459â2484 (2023). https://doi.org/10.1038/s41596-023-00845-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41596-023-00845-4
This article is cited by
-
Mesoporous polymers: soft-template self-assembly synthesis and applications
Science China Chemistry (2024)