Electrochemical energy storage performance of one-step laser written Cu-C composites

被引：4

作者：

Sun, Qian ^{[1
]}

Ma, Xiaolong ^{[1
]}

Liu, Xiaoxue ^{[1
]}

Wang, Xiaonan ^{[2
]}

Zhou, Xingwen ^{[1
]}

机构：

[1] Soochow Univ, Sch Mech & Elect Engn, Suzhou 215000, Peoples R China

[2] Soochow Univ, Sch Iron & Steel, Suzhou 215002, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2024年 / 476卷

基金：

中国博士后科学基金;

关键词：

Laser writing; Cu -C composite; Electrochemistry; Energy storage; Electrode material; FLEXIBLE SUBSTRATE; FABRICATION; GRAPHENE; CARBON; COPPER; SUPERCAPACITORS; NANOSHEETS; ULTRACAPACITORS; ELECTRODES; NANORODS;

D O I：

10.1016/j.electacta.2023.143739

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

One-step laser written copper -carbon (Cu -C) composites are ideal for assembling supercapacitors, but their structuring -performance correlation remains unclear. In this study, the microstructure of written composites has been controlled by varying the laser power. Their electrochemical energy storage performance has been investigated and compared to reveal the contribution of each component. The porous carbon -rich (C -rich) structure, introduced by laser carbonization of the substrate, can provide abundant active sites for the Faraday reaction of the copper -rich (Cu -rich) structure. The continuous sintered Cu -rich structure, obtained by laser reduction of ionic precursor and in -situ joining, can ensure fast transfer of electrons in the composites. Owing to their synergistic effect, our optimal composite exhibits an excellent specific capacity of 107.2 C/cm2 at 1 mA/cm2. This study provides a theoretical reference for the development of high-performance supercapacitors.

引用

页数：8

共 55 条

[1]

An KH, 2001, ADV FUNCT MATER, V11, P387, DOI 10.1002/1616-3028(200110)11:5<387::AID-ADFM387>3.0.CO

[2]

2-G

[3] Laser direct-write techniques for printing of complex materials [J].

Arnold, Craig B. ;

Serra, Pere ;

Pique, Alberto .

MRS BULLETIN, 2007, 32 (01) :23-31

[4] Synthesis of Nano-Flower Metal-Organic Framework/Graphene Composites As a High-Performance Electrode Material for Supercapacitors [J].

Azadfalah, Marziyeh ;

Sedghi, Arman ;

Hosseini, Hadi .

JOURNAL OF ELECTRONIC MATERIALS, 2019, 48 (11) :7011-7024

[5] Low-cost optical fabrication of flexible copper electrode via laser-induced reductive sintering and adhesive transfer [J].

Back, Seunghyun ;

Kang, Bongchul .

OPTICS AND LASERS IN ENGINEERING, 2018, 101 :78-84

[6] Facile fabrication of flexible all solid-state micro-supercapacitor by direct laser writing of porous carbon in polyimide [J].

Bin In, Jung ;

Hsia, Ben ;

Yoo, Jae-Hyuck ;

Hyun, Seungmin ;

Carraro, Carlo ;

Maboudian, Roya ;

Grigoropoulos, Costas P. .

CARBON, 2015, 83 :144-151

[7] Hydrothermal synthesis of highly porous carbon monoliths from carbohydrates and phloroglucinol [J].

Brun, Nicolas ;

Garcia-Gonzalez, Carlos A. ;

Smirnova, Irina ;

Titirici, Magdalena M. .

RSC ADVANCES, 2013, 3 (38) :17088-17096

[8] Oxygen-deficient anatase TiO2@C nanospindles with pseudocapacitive contribution for enhancing lithium storage [J].

Deng, Xiaolan ;

Wei, Zengxi ;

Cui, Chunyu ;

Liu, Quanhui ;

Wang, Caiyun ;

Ma, Jianmin .

JOURNAL OF MATERIALS CHEMISTRY A, 2018, 6 (09) :4013-4022

[9] PVP-assisted preparation of nitrogen doped mesoporous carbon materials for supercapacitors [J].

Du, Juan ;

Chen, Aibing ;

Zhang, Yue ;

Zong, Shuang ;

Wu, Haixia ;

Liu, Lei .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 58 :197-204

[10] Simultaneous Photoreduction and Nitrogen Doping of Graphene Oxide for Supercapacitors by Direct Laser Writing [J].

Fu Xiuyan ;

Xu Shuai ;

Luo Yang ;

Li Aiwu ;

Yang Han .

CHEMICAL RESEARCH IN CHINESE UNIVERSITIES, 2019, 35 (05) :879-883

← 1 2 3 4 5 6 →