Green Synthesis of Pyridyl Conjugated Microporous Polymers as Precursors for Porous Carbon Microspheres for Efficient Electrochemical Energy Storage

被引：35

作者：

He, Yan ^{[1
]}

Cheng, Zhonghua ^{[1
]}

Zuo, Hongyu ^{[1
,3
]}

Yan, Chunna ^{[1
,2
]}

Liao, Yaozu ^{[1
,2
]}

机构：

[1] Donghua Univ, Polymer Materials Coll Materials Sci, State Key Lab Modificat Chem Fibers, Engn, Shanghai, Shanghai, Peoples R China

[2] Liaocheng Univ, Sch Materials Sci, Engn, Liaocheng, Peoples R China

[3] Univ Shanghai Sci, Sch Materials Sci, Technol, Engn, Shanghai, Shanghai, Peoples R China

来源：

CHEMELECTROCHEM | 2020年 / 7卷 / 04期

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

pyridyl conjugated microporous polymers; green synthesis; molecular design; porous carbon microspheres; supercapacitors; NITROGEN; PERFORMANCE; ELECTRODES; NETWORKS; CAPTURE;

D O I：

10.1002/celc.201901975

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Efficient materials for electrochemical energy storage have received much attention. Herein we report a green metal-free route to synthesize pyridyl conjugated microporous polymers (PCMPs) as precursors for nitrogen-doped porous carbon microspheres (NCMs) with high surface areas up to 1232 m(2) g(-1) via a simple carbonization method. The resulting NCMs as supercapacitor electrodes exhibit high specific capacitance of 324 F g(-1) at a current density of 0.1 A g(-1), and high rate ability (182 F g(-1) at 10 A g(-1)), and excellent cyclability (remained >97 % of initial capacitance at 2 A g(-1) after 10000 cycles). This work also presents that molecular engineering of PCMP precursor, pyrolysis temperature and charge/discharge cycling allow the electrochemical energy storage properties of the NCMs to be controlled.

引用

页码：959 / 966

页数：8

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