Preparation of N and O Co-doped Carbon Materials by Salt Sealing Method for Electrode of Supercapacitors

被引：0

作者：

Yuan, Xinzhong ^{[1
]}

Wang, Cunjing ^{[2
]}

Yao, Peng ^{[2
]}

Li, Qiong ^{[3
]}

Ma, Zhihua ^{[2
]}

Li, Pengfa ^{[2
]}

机构：

[1] Medical college, Xinxiang University, Xinxiang

[2] School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang

[3] School of Pharmacy of Xinxiang University, Xinxiang University, Xinxiang

来源：

Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research | 2024年 / 38卷 / 07期

基金：

中国国家自然科学基金;

关键词：

inorganic non-metallic materials; open hollow carbon materials; salt-sealing technique; supercapacitors;

D O I：

10.11901/1005.3093.2023.352

中图分类号：

学科分类号：

摘要：

N and O co-doped carbon electrode materials were synthesized by pyrolysis of Zeolitic Imidazolate Framework-8 (ZIF-8) at high temperature in air using a salt-sealing technique, aiming to solve the issue related with the low energy density of conventional carbon materials for supercapacitors. Compared with the conventional carbon materials prepared by direct pyrolysis of ZIF-8 in nitrogen atmosphere, the novel carbon materials prepared by this proposed technique have an open hollow structure with appropriate distribution of mesoporous and microporous, and higher specific surface area of 1589 m2·g-1. The co-doping of heteroatoms N and O can improve the wettability of the material, while the open hollow structure is conducive to the diffusion of the electrolyte ions from both internal and external surfaces to the interior of the electrode material. Therefore, more solvated ions are adsorbed and desorbed in the pores, and the effective specific surface area is increased for the electrode material, therewith, more active sites of heteroatoms N and O can participate in the redox reaction, introducing higher Faraday capacitance. As a matter of course, the symmetrical supercapacitor assembled with the novel electrode material shows an energy density of 11 Wh·kg-1 at power density of 250 W·kg-1 © 2024 Chinese Journal of Materials Research. All rights reserved.

引用

页码：529 / 536

页数：7

共 27 条

[1]

Guo R N, Li T W, Wang D, Et al., Research progress of MOF-derived nano-electrode materials for supercapacitors, J. Synth. Crys, 52, 11, (2023)

[2]

Tian T, Lei S P, Yu T, Et al., Research progress of carbon materials in flexible supercapacitors, Chem. Indus. Eng. Prog, 42, 2, (2023)

[3]

Song X L, Luo W J, Nan Y L., A review for synthesis and applications of carbon nanohorns, Chin. J. Mater. Res, 35, 6, (2021)

[4]

Zhang C X, Jiang Z Y, Dai Y M, Et al., Preparation and supercapacitance of C-ZIF-8@AC composites electrode material, Chin. J. Mater. Res, 5, (2019)

[5]

Cao Z J, Li R Y, Xu P W, Et al., Highly dispersed RuO<sub>2</sub>-biomass carbon composite made by immobilization of ruthenium and dissolution of coconut meat with octyl ammonium salicylate ionic liquid for high performance flexible supercapacitor, J. Colloid Interface Sci, 606, 1, (2022)

[6]

Wang G, Lu Z L, Li Y, Et al., Electroceramics for high-energy density capacitors: current status and future perspectives, Chem. Rev, 121, 10, (2021)

[7]

Wei L, Wang J K, Liu K G, Et al., Nanocellulose/reduced graphene oxide composites for high performance supercapacitors, Chin. J. Inorg. Chem, 39, 3, (2023)

[8]

Yang L, Wu T T, Li H Q, Et al., Preparation of nitrogen-doped carbon nanonets for high-performance supercapacitors, Chin. J. Inorg. Chem, 37, 6, (2021)

[9]

Liu H, Yang D H, Wang X Y, Et al., Metal-organic framework-derived hollow carbon materials for electrochemical energy storage and oxygen reduction reaction, Chin. J. Inorg. Chem, 35, 11, (2019)

[10]

Sheng R, Tang T T, Tian M, Et al., Research on heat-resistant phenolic resin-based activated carbon for supercapacitor electrodes, Mater. Rep, 37, 4, (2023)

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