A Universal Strategy for Hollow Metal Oxide Nanoparticles Encapsulated into B/N Co-Doped Graphitic Nanotubes as High-Performance Lithium-Ion Battery Anodes

被引：392

作者：

Tabassum, Hassina ^{[1
]}

Zou, Ruqiang ^{[1
]}

Mahmood, Asif ^{[1
]}

Liang, Zibin ^{[1
]}

Wang, Qingfei ^{[1
]}

Zhang, Hao ^{[1
]}

Gao, Song ^{[1
]}

Qu, Chong ^{[1
]}

Guo, Wenhan ^{[1
]}

Guo, Shaojun ^{[1
]}

机构：

[1] Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing Key Lab Theory & Technol Adv Battery Mat, Beijing 100871, Peoples R China

来源：

ADVANCED MATERIALS | 2018年 / 30卷 / 08期

关键词：

graphitic nanotubes; hollow structures; lithium-ion batteries; transition metals; CARBON NANOTUBES; GRAPHENE OXIDE; CO3O4; NANOPARTICLES; ORGANIC FRAMEWORKS; OXYGEN REDUCTION; NANOROD ARRAYS; SHELL; STORAGE; CAPACITY; ELECTROCATALYSTS;

D O I：

10.1002/adma.201705441

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Yolk-shell nanostructures have received great attention for boosting the performance of lithium-ion batteries because of their obvious advantages in solving the problems associated with large volume change, low conductivity, and short diffusion path for Li+ ion transport. A universal strategy for making hollow transition metal oxide (TMO) nanoparticles (NPs) encapsulated into B, N co-doped graphitic nanotubes (TMO@BNG (TMO = CoO, Ni2O3, Mn3O4) through combining pyrolysis with an oxidation method is reported herein. The as-made TMO@BNG exhibits the TMO-dependent lithium-ion storage ability, in which CoO@BNG nanotubes exhibit highest lithium-ion storage capacity of 1554 mA h g(-1) at the current density of 96 mA g(-1), good rate ability (410 mA h g(-1) at 1.75 A g(-1)), and high stability (almost 96% storage capacity retention after 480 cycles). The present work highlights the importance of introducing hollow TMO NPs with thin wall into BNG with large surface area for boosting LIBs in the terms of storage capacity, rate capability, and cycling stability.

引用

页数：7

共 42 条

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