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Single crystal metal-organic framework constructed by vertically self-pillared nanosheets and its derivative for oriented lithium plating
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- Jia, Xiaomin (författare)
- Shaanxi Normal Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Appl Surface & Colloid Chem, Xian 710119, Shaanxi, Peoples R China.
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- Li, Shaowen (författare)
- Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Ctr Nano Energy Mat, Xian 710072, Shaanxi, Peoples R China.
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- Sun, Tu (författare)
- ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China.
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- Shaanxi Normal Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Appl Surface & Colloid Chem, Xian 710119, Shaanxi, Peoples R China Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Ctr Nano Energy Mat, Xian 710072, Shaanxi, Peoples R China. (creator_code:org_t)
- Elsevier BV, 2021
- 2021
- Engelska.
- Ingår i: Cuihuà xuébào. - : Elsevier BV. - 0253-9837 .- 1872-2067. ; 42:9, s. 1553-1560
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- This vertically self-pillared (VSP) structure extends the application range of traditional porous materials with facile mass/ion transport and enhanced reaction kinetics. Here, we prepare a single crystal metal-organic framework (MOF), employing the ZIF-67 structure as a proof of concept, which is constructed by vertically self-pillared nanosheets (VSP-MOF). We further converted VSP-MOF into VSP-cobalt sulfide (VSP-CoS2) through a sulfidation process. Catalysis plays an important role in almost all battery technologies; for metallic batteries, lithium anodes exhibit a high theoretical specific capacity, low density, and low redox potential. However, during the half-cell reaction (Li++e=Li), uncontrolled dendritic Li penetrates the separator and solid electrolyte interphase layer. When employed as a composite scaffold for lithium metal deposition, there are many advantage to using this framework: 1) the VSP-CoS2 substrate provides a high specific surface area to dissipate the ion flux and mass transfer and acts as a pre-catalyst, 2) the catalytic Co center favors the charge transfer process and preferentially binds the Li+ with the enhanced electrical fields, and 3) the VSP structure guides the metallic propagation along the nanosheet 2D orientation without the protrusive dendrites. All these features enable the VSP structure in metallic batteries with encouraging performances.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Vertically self-pillared structure
- Metal organic framework
- Pre-catalyst preparation
- Lithium plating orientation
- Metallic battery
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- Jia, Xiaomin
- Li, Shaowen
- Sun, Tu
- Wang, Yanzhi
- Fan, Yaqi
- Zhang, Chaochao
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- Xu, Yang
- Liang, Zuozhong
- Lei, Haitao
- Zhang, Wei
- Zhou, Yuye
- Ma, Yanhang
- Zheng, Haoquan
- Ma, Yue
- Cao, Rui
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