Bimetallic Metal-Organic Framework with High-Adsorption Capacity toward Lithium Polysulfides for Lithium-sulfur Batteries
文献类型：期刊论文
| 作者 | Geng, Pengbiao; Du, Meng; Guo, Xiaotian; Pang, Huan; Tian, Ziqi; Braunstein, Pierre; Xu, Qiang |
| 刊名 | ENERGY & ENVIRONMENTAL MATERIALS
 |
| 出版日期 | 2021 |
| 关键词 | POROUS CARBON PERFORMANCE CONVERSION NANOSHEETS |
| 英文摘要 | The practical application of Li-S batteries is largely impeded by the shuttle effect generated at the cathode which results in a short life cycle of the battery. To address this issue, this work discloses a bimetallic metal-organic framework (MOF) as a sulfur host material based on Al-MOF, commonly called (Al)MIL-53. To obtain a high-adsorption capacity to lithium polysulfides (Li2Sx, 4 <= x <= 8), we present an effective strategy to incorporate sulfiphilic metal ion (Cu2+) with high-binding energy to Li2Sx into the framework. Through a one-step hydrothermal method, Cu2+ is homogeneously dispersed in Al-MOF, producing a bimetallic Al/Cu-MOF as advanced cathode material. The macroscopic Li2S4 solution permeation test indicates that the Al/Cu-MOF has better adsorption capacity to lithium polysulfides than monometallic Al-MOF. The sulfur-transfusing process is executed via a melt-diffusion method to obtain the sulfur-containing Al/Cu-MOF (Al/Cu-MOF-S). The assembled Li-S batteries with Al/Cu-MOF-S yield improved cyclic performance, much better than that of monometallic Al-MOF as sulfur host. It is shown that chemical immobilization is an effective method for polysulfide adsorption than physical confinement and the bimetallic Al/Cu-MOF, formed by incorporation of sulfiphilic Cu2+ into porous MOF, will provide a novel and powerful approach for efficient sulfur host materials. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21837]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Tian, ZQ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China. 2.Xu, Q (corresponding author), Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225009, Jiangsu, Peoples R China. 3.Pang, H |
| 推荐引用方式 GB/T 7714 | Geng, Pengbiao,Du, Meng,Guo, Xiaotian,et al. Bimetallic Metal-Organic Framework with High-Adsorption Capacity toward Lithium Polysulfides for Lithium-sulfur Batteries[J]. ENERGY & ENVIRONMENTAL MATERIALS,2021. |
| APA | Geng, Pengbiao.,Du, Meng.,Guo, Xiaotian.,Pang, Huan.,Tian, Ziqi.,...&Xu, Qiang.(2021).Bimetallic Metal-Organic Framework with High-Adsorption Capacity toward Lithium Polysulfides for Lithium-sulfur Batteries.ENERGY & ENVIRONMENTAL MATERIALS. |
| MLA | Geng, Pengbiao,et al."Bimetallic Metal-Organic Framework with High-Adsorption Capacity toward Lithium Polysulfides for Lithium-sulfur Batteries".ENERGY & ENVIRONMENTAL MATERIALS (2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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