Controlled Synthesis of Mesoporous π‐Conjugated Polymer Nanoarchitectures as Anodes for Lithium‐Ion Batteries. Issue 14 (25th February 2022)

• Record Type: Journal Article
• Authors: Shi, Limin; Li, Wenda; Wu, Yong; Wei, Facai; Zhang, Tingting; Fu, Jianwei; Jing, Chengbin; Cheng, Jiangong; Liu, Shaohua
• Other Names: Mai Yiyong guestEditor.; An Zesheng guestEditor.; Liu Shiyong guestEditor.
• Is Part Of: Macromolecular rapid communications. Volume 43:Issue 14(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-02-25
• Subjects: controllable synthesis -- lithium‐ions batteries -- nanomicelles -- self‐assembly -- π‐conjugated mesoporous polymers; Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.202100897
• Languages: English
• ISSNs: 1022-1336

Abstract

Abstract: Conjugated polymers possess better electron conductivity due to large π ‐electron conjugated configuration endowing them significant scientific and technological interest. However, the obvious deficiency of active‐site underutilization impairs their electrochemical performance. Therefore, designing and engineering π ‐conjugated polymers with rich redox functional groups and mesoporous architectures could offer new opportunities for them in these emerging applications and further expand their application scopes. Herein, a series of 1, 3, 5‐tris(4‐aminophenyl) benzene (TAPB)‐based π ‐conjugated mesoporous polymers ( π ‐CMPs) are constructed by one‐pot emulsion‐induced interface assembly strategy. Furthermore, co‐induced in situ polymerization on 2D interfaces by emulsion and micelles is explored, which delivers sandwiched 2D mesoporous π ‐CMPs‐coated graphene oxides (GO@mPTAPB). Benefiting from specific redox‐active functional groups, excellent electron conductivity and a 2D mesoporous conjugated framework, GO@mPTAPB exhibits high capability of accommodating Li + anions (up to 382 mAh g −1 at 0.2 A g −1 ) and outstanding electrochemical stability (87.6% capacity retention after 1000 cycles). The ex situ Raman and impedance spectra are further applied to reveal the high reversibility of GO@mPTAPB. This work will greatly promote the development of advanced π ‐CMPs‐based organic anodes toward energy storage devices. Abstract : A series of π ‐conjugated mesoporous polymers with tunable pore sizes and various nanoarchitectures are constructed by one‐pot emulsion‐induced interface assembly strategy. Benefiting from the specific redox‐active functional groups, excellent electron conductivity and 2D mesoporous conjugated frameworks, the π ‐conjugated mesoporous polymers‐coated graphene oxides composite as an anode material exhibits high capability of accommodating Li + anions and outstanding electrochemical stability.