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Phase Transformation Guided Single-Layer beta-Co(OH)(2) Nanosheets for Pseudocapacitive Electrodes
文献类型：期刊论文
| 作者 | Jin, J (靳健)
|
| 刊名 | ACS NANO
 |
| 出版日期 | 2014 |
| 卷号 | 8期号:4页码:3724-3734 |
| 关键词 | single-layer beta-Co(OH)(2) nanosheet two-dimensional materials pseudocapacitors |
| 通讯作者 | Jin, J (靳健) |
| 英文摘要 | It is known that Co(OH)(2) can be crystallized into a layered structure with two polymorphs: alpha and beta. The single-layer alpha-Co(OH)(2) nanosheet has been prepared by exfoliating directly alpha phase layered Co(OH)(2). However, due to theoretical barriers, a single-layer beta-Co(OH)(2) nanosheet has not been achieved so far. In this article, phase transformation during exfoliation of layered Co(OH)(2) from alpha to beta is observed and a single-layer beta-Co(OH)(2) nanosheet with a thickness of similar to 1.1 nm is prepared through phase transition of layered alpha-Co(OH)(2) nanocones in a mild wet chemical process for the first time, with a nearly 100% yield. The as-prepared single-layer beta-Co(OH)(2) nanosheets are assembled with graphene oxide to form an all-two-dimensional materials-based composite for use as an electrode for the pseudocapacitor. The reduced graphene oxide/beta-Co(OH)(2) composite exhibits a high specific capacitance up to 2080 F/g scaled to the total mass of the electrode or 3355 F/g scaled to the active mass of beta-Co(OH)(2) nanosheets at the current density of 1 A/g. The electrode also demonstrates the excellent rate performance and long cycle life. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000334990600067 |
| 公开日期 | 2015-02-03 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/1807]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米仿生研究部_靳健团队 |
| 通讯作者 | Jin, J (靳健) |
| 推荐引用方式 GB/T 7714 | Jin, J . Phase Transformation Guided Single-Layer beta-Co(OH)(2) Nanosheets for Pseudocapacitive Electrodes[J]. ACS NANO,2014,8(4):3724-3734. |
| APA | Jin, J .(2014).Phase Transformation Guided Single-Layer beta-Co(OH)(2) Nanosheets for Pseudocapacitive Electrodes.ACS NANO,8(4),3724-3734. |
| MLA | Jin, J ."Phase Transformation Guided Single-Layer beta-Co(OH)(2) Nanosheets for Pseudocapacitive Electrodes".ACS NANO 8.4(2014):3724-3734. |
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