A General Strategy to Layered Transition-Metal Hydroxide Nanocones: Tuning the Composition for High Electrochemical Performance

被引：221
作者：
Liu, Xiaohe [1 ,2 ]
Ma, Renzhi [1 ]
Bando, Yoshio [1 ]
Sasaki, Takayoshi [1 ]
机构：
[1] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki 3050044, Japan
[2] Cent S Univ, Dept Inorgan Mat, Changsha 410083, Hunan, Peoples R China
来源：
ADVANCED MATERIALS | 2012年 / 24卷 / 16期
基金：
日本科学技术振兴机构;
关键词：
layered nanomaterials; transition-metal hydroxide; nanocones; nanosheets; electrochemical performance; POSITIVELY CHARGED NANOSHEETS; COBALT HYDROXIDE; ANION-EXCHANGE; TOPOCHEMICAL SYNTHESIS; ELECTRODE MATERIALS; EUROPIUM HYDROXIDE; DODECYL-SULFATE; TITANIUM-OXIDE; DELAMINATION; EXFOLIATION;
D O I：
10.1002/adma.201104753
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A general and facile strategy for the synthesis of a large family of monometallic (Co, Ni) and bimetallic (Co-Ni, Co-Cu and Co-Zn) hydroxide nanocones (NCs) intercalated with DS ions is demonstrated. The basal spacing of the NCs can be varied by adjusting the intercalated DS amount. Especially, electrochemical characterizations reveal that bimetallic Co-Ni hydroxide NCs have a higher specific capacitance than their monometallic counterpart. These results suggest the importance of rational designing layered hydroxide NCs with tuned transition-metal composition for high-performance energy storage devices. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：2148 / 2153
页数：6
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