Rational design of nano-Fe3O4 encapsulated in 3D honeycomb biochar for enhanced lithium storage performance

He Dafang; Sun Mufan; Cao DaHe GuangyuChen Haiqun

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Rational design of nano-Fe3O4 encapsulated in 3D honeycomb biochar for enhanced lithium storage performance

机译：Rational design of nano-Fe3O4 encapsulated in 3D honeycomb biochar for enhanced lithium storage performance

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Developing green materials applied in lithium-ion batteries is of significant importance for the present-day society. Herein, a feasible strategy to construct Fe3O4 nanoparticles (NPs) embedded in three-dimensional (3D) honeycomb biochar derived from pleurotus eryngii was proposed. The obtained material consists of Fe3O4 NPs (35-85 nm) encapsulated in 3D honeycomb biochar possesses a high specific capacity of 723 mAh g(-1) at 1.5 A g(-1) after 1000 cycles. The effectively enhanced cycling life of Fe3O4@C nanocomposites can be ascribed to the small Fe3O4 NPs provide lower degree of cracking and high specific capacity, while the honeycomb biochar function like a cage to inhibit huge volume change of Fe3O4 NPs during the charge-discharge process.

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来源
《Nanotechnology》 |2022年第3期|共9页
作者
He Dafang; Sun Mufan; Cao DaHe GuangyuChen Haiqun;
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作者单位

Changzhou Univ;

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正文语种英语
中图分类特种结构材料;
关键词
Fe3O4; pleurotus eryngii; 3D honeycomb biochar; high-capacity anode; Li-ion batteries; NITROGEN-DOPED CARBON; ANODE MATERIAL; ELECTROCHEMICAL PERFORMANCE; LONG-LIFE; ION; COMPOSITE; BATTERY;

Rational design of nano-Fe3O4 encapsulated in 3D honeycomb biochar for enhanced lithium storage performance

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