首页|废弃松子壳模板合成的Co3O4纳米粒子交联网络及其储锂性能

废弃松子壳模板合成的Co3O4纳米粒子交联网络及其储锂性能

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近年来,设计合成纳米基元组装的多级结构Co3O4负极材料可有效改善储锂性能,然而,目前所报道的相关工程策略仍存在操作复杂、产率低和重现性差.基于此,利用废弃松子壳作为生物质模板,采用简单的钴盐浸渍和空气煅烧的方法可控地制备出具有介孔和大孔的Co3O4多级结构,这种交联网络形貌是由尺寸约30 nm的均匀纳米粒子交联组成.作为锂离子电池(LIBs)负极材料,Co3O4电极在0.1~5 A·g-1下具有好的倍率性能,特别是在1 A-g-1下,其经过1 000次充放电循环后的可逆容量仍高达897.3 mAh·g-1,进而显示出作为长寿命LIBs的应用潜力.
Waste pine nut shell-templated synthesis of Co3O4 nanoparticles crosslinked network for lithium storage performance
In recent years,design and synthesis of hierarchical structure Co3O4 anode materials have effectively improve their lithium storage performance.However,the relevant reported engineering strategies still have complicated operation,low yield and poor reproducibility.Herein the Co3O4 hierarchical structure with meso-and macro-pores was controllably prepared by air calcination of cobalt salt impregnation in waste pine nut shells as biomass template.This crosslinking network morphology is composed of uniform nanoparticles with a size of about 30 nm.As an anode material for lithium ion batteries(LIBs),Co3O4 electrode has good rate performance at 0.1 to 5 A·g-1.In particular,its reversible capacity remains as high as 897.3 mAh·g-1 after 1 000 cycles at 1 A·g-1,further showing its application potential as long-life LIBs.

Co3O4 network structurepine nut shell-templatedanode materiallithium ion batteryslong-cycle performance

张萌、张现发、高山

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黑龙江大学化学化工与材料学院,功能无机材料化学教育部重点实验室,哈尔滨 150080

Co304网络结构 松子壳模板 负极材料 锂离子电池 长循环性能

黑龙江省高校青年创新人才项目黑龙江省高校青年创新人才项目

UNPYSCT-2016074UNPYSCT-2017121

2024

黑龙江大学工程学报
黑龙江大学

黑龙江大学工程学报

影响因子:0.358
ISSN:2095-008X
年,卷(期):2024.15(3)