Stable Carbon-Selenium Bonds for Enhanced Performance in Tremella-Like 2D Chalcogenide Battery Anode
文献类型：期刊论文
| 作者 | Zhang, K; Li, Y; Xu, YH; Bai, Y ; Wang, ZH; Wu, CA; Liu, YJ; Wu, F; Ni, Q; Zhang K(张凯)
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| 刊名 | ADVANCED ENERGY MATERIALS
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| 出版日期 | 2018 |
| 卷号 | 8期号:23页码:1800927 |
| 关键词 | carbon-selenium bonds cobalt selenide lithium-ion batteries Se dissolution sodium-ion batteries |
| ISSN号 | 1614-6832 |
| DOI | 10.1002/aenm.201800927 |
| 文献子类 | Article |
| 英文摘要 | 2D cobalt selenide based on conversion reaction has attracted much attention due to its open layered structure and high specific capacity. However, effectively suppressing the fast capacity fade caused by the irreversible Se dissolution and serious volume change during the cycling process is still a challenge. Herein, the concentration of dispersion liquid under supercritical conditions is tuned to induce the CoSe crystal to grow along the graphene oxide (GO), and finally obtain the Tremella-like CoSe-reduced GO (rGO) hybrid. The nature of epitaxial growth leads to the formation of stable C-Se bonds, which maintain a favorable conductive connection between CoSe and rGO as well as enhance the mechanical strength of active materials to suppress Se dissolution and volume expansion during Na/Li intercalation and deintercalation. The unique microstructural merits of the hybrid result in superior sodium/lithium storage performance (400.8 mAh g(-1) at 1 A g(-1) after 100 cycles for sodium-ion batteries and 769.6 mAh g(-1) at 2 A g(-1) after 500 cycles for lithium-ion batteries). Moreover, the transmission X-ray microscopy technique is first used to directly observe the Se segregation in cobalt selenide and it being suppressed by the C-Se bonds. |
| 电子版国际标准刊号 | 1614-6840 |
| WOS关键词 | LITHIUM-ION BATTERIES ; REDUCED GRAPHENE OXIDE ; LONG-CYCLE-LIFE ; FESE2 MICROSPHERES ; CATHODE MATERIAL ; SODIUM ; STORAGE ; HYBRID ; RICH ; NANOOCTAHEDRA |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000441741900024 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286216]  |
| 专题 | 高能物理研究所_实验物理中心 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, K,Li, Y,Xu, YH,et al. Stable Carbon-Selenium Bonds for Enhanced Performance in Tremella-Like 2D Chalcogenide Battery Anode[J]. ADVANCED ENERGY MATERIALS,2018,8(23):1800927. |
| APA | Zhang, K.,Li, Y.,Xu, YH.,Bai, Y.,Wang, ZH.,...&Dong, RQ.(2018).Stable Carbon-Selenium Bonds for Enhanced Performance in Tremella-Like 2D Chalcogenide Battery Anode.ADVANCED ENERGY MATERIALS,8(23),1800927. |
| MLA | Zhang, K,et al."Stable Carbon-Selenium Bonds for Enhanced Performance in Tremella-Like 2D Chalcogenide Battery Anode".ADVANCED ENERGY MATERIALS 8.23(2018):1800927. |
入库方式： OAI收割
来源：高能物理研究所
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