Mesoporous NiO crystals with dominantly exposed {110} reactive facets for ultrafast lithium storage

被引：161

作者：

Su, Dawei ^{[1
]}

Ford, Mike ^{[2
]}

Wang, Guoxiu ^{[1
]}

机构：

[1] Univ Technol Sydney, Ctr Clean Energy Technol, Sch Chem & Forens Sci, Sydney, NSW 2007, Australia

[2] Univ Technol Sydney, Sch Phys & Adv Mat, Sydney, NSW 2007, Australia

来源：

SCIENTIFIC REPORTS | 2012年 / 2卷

基金：

澳大利亚研究理事会;

关键词：

ANATASE TIO2 NANOSHEETS; NEGATIVE ELECTRODES; FABRICATION; CO3O4; BATTERIES; OXIDATION; ANODE;

D O I：

10.1038/srep00924

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Faceted crystals with exposed highly reactive planes have attracted intensive investigations for applications such as hydrogen production, enhanced catalytic activity, and electrochemical energy storage and conversion. Herein, we report the synthesis of mesoporous NiO crystals with dominantly exposed {110} reactive facets by the thermal conversion of hexagonal Ni(OH)(2) nanoplatelets. When applied as anode materials in lithium-ion batteries, mesoporous NiO crystals exhibit a high reversible lithium storage capacity of 700 mAh g(-1) at 1 C rate in 100 cycles and an excellent cyclability. In particular, the dominantly exposed {110} reactive facets and mesoporous nanostructure of NiO crystals lead to ultrafast lithium storage, which mimics the high power delivery of supercapacitors.

引用

页数：7

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