Graphene nanonetwork embedded with polyaniline nanoparticles as anode of Li-ion battery

被引：21

作者：

Fu, Haiyang ^{[1
,2
]}

Gao, Bo ^{[1
]}

Qiao, Yuan ^{[2
]}

Zhu, Wenhui ^{[2
]}

Liu, Zhuang ^{[1
]}

Wei, Gaoyu ^{[1
]}

Feng, Zhongbao ^{[1
]}

Kamali, Ali Reza ^{[2
,3
,4
]}

机构：

[1] Northeastern Univ, Key Lab Ecol Met Multimet Mineral, Minist Educ, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Energy & Environm Mat Res Ctr E2MC, Sch Met, Shenyang 110819, Peoples R China

[3] Univ Cambridge, Dept Mat Sci & Met, 27 Charles Babbage Rd, Cambridge CB3 0FS, England

[4] Northeastern Univ, Energy & Environm Mat Res Ctr E2MC, Shenyang 110819, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2023年 / 477卷

关键词：

Graphene nanonetwork; Nanoparticles; Low temperature chemical expansion; Li-ion storage; Acidic graphene oxide; POROUS CARBON; DOPED GRAPHENE; PERFORMANCE; CAPACITY; NANOSPHERES; NANOSHEETS; NANOCOMPOSITE; COMPOSITES; NANOFIBERS; CELLULOSE;

D O I：

10.1016/j.cej.2023.146936

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A simple and solvent-free approach is proposed to prepare graphene nanonetwork-polyaniline (PANI) nanocomposite with enhanced electrical conductivity and Li-ion storage performance. To this end, acidic graphene oxide (AGO) and PANI are ball-milled followed by low-temperature chemical expansion leading to the formation of chemically expanded graphene (CEG) in the form of mesoporous nanonetworks with the lattice layer spacing of 0.362 nm embedded with PANI nanoparticles. CEG-PANI nanocomposite outperforms CEG, exhibiting a specific reversible capacity of 664 mAh.g(-1) at 200 mA.g(-1) after 150 cycles, and the discharge capacity of 253 mAh.g(-1) after 350 cycles at 2000 mA.g(-1). The enhanced electrochemical performance of CEG-PANI can be attributed to its large specific surface area, mesoporous structure and conductive homogeneous graphene nanonetwork doped with of N heteroatoms embedded with polyaniline, providing sufficient active sites for facile Li-ion storage. Nanostructured CEG-PANI is a promising candidate for anode of Li-ion batteries.

引用

页数：12

共 77 条

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