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Zheng Z, Zhou P, Tang X, Zeng Q, Yi S, Liao J, Hu M, Wu D, Zhang B, Liang J, Huang C. Hierarchical MOFs with Good Catalytic Properties and Structural Stability in Oxygen-Rich and High-Temperature Environments. Small 2024:e2309302. [PMID: 38372497 DOI: 10.1002/smll.202309302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/14/2024] [Indexed: 02/20/2024]
Abstract
Metal-organic framework materials are ideal materials characterized by open frameworks, adjustable components, and high catalytic activity. They are extensively utilized for catalysis. Due to decomposition and structural collapse under high temperatures and an oxygen-rich environment, the potential of thermal catalysis is greatly limited. In this research, Co-rich hollow spheres (Co-HSs) with a gradient composition are designed and synthesized to investigate their thermal catalytic properties in the ammonium perchlorate(AP)system. The results demonstrate that Co-HSs@AP exhibits good thermal catalytic activity and a high-temperature decomposition of 292.5 °C, which is 121.6 °C lower than pure AP. The hierarchical structure confers structural stability during the thermal decomposition process. Thermogravimetry-infrared indicates that the inclusion of Co-HSs successfully boosts the level of reactive oxygen species and achieves thorough oxidation of NH3 . Based on the above phenomenon, macro dynamics calculations are carried out. The results show that Co-HSs can promote the circulation of lattice oxygen and reactive oxygen species and the multidimensional diffusion of NH3 in an oxygen-rich environment. This material has significant potential for application in the fields of thermal catalysis and ammonia oxidation.
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Affiliation(s)
- Zeyu Zheng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, 250300, China
| | - Peng Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, 250300, China
| | - Xiaolin Tang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, 250300, China
| | - Qihui Zeng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, 250300, China
| | - Shengping Yi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, 250300, China
| | - Jun Liao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Mingjie Hu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Dan Wu
- System Design Institute of Hubei Aerospace Technology Academy, Wuhan, 430040, China
| | - Bin Zhang
- System Design Institute of Hubei Aerospace Technology Academy, Wuhan, 430040, China
| | - Jiqiu Liang
- System Design Institute of Hubei Aerospace Technology Academy, Wuhan, 430040, China
| | - Chi Huang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, 250300, China
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Luo L, Chen K, Chen H, Li H, Cao R, Feng X, Chen W, Fang Y, Cao Y. Enabling Ultralow-Temperature (-70 °C) Lithium-Ion Batteries: Advanced Electrolytes Utilizing Weak-Solvation and Low-Viscosity Nitrile Cosolvent. Adv Mater 2024; 36:e2308881. [PMID: 37921499 DOI: 10.1002/adma.202308881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/19/2023] [Indexed: 11/04/2023]
Abstract
Low-temperature performance of lithium-ion batteries (LIBs) has always posed a significant challenge, limiting their wide application in cold environments. In this work, the high-performance LIBs working under ultralow-temperature conditions, which is achieved by employing the weak-solvation and low-viscosity isobutyronitrile as a cosolvent to tame the affinity between solvents and lithium ions, is reported. The as-prepared electrolytes exhibit a sufficiently high conductivity (1.152 mS cm-1 ) at -70 °C. The electrolytes enable LiCoO2 cathode and graphite anode to achieve high Coulombic efficiency of >99.9% during long-term cycling at room temperature, and to respectively achieve 75.8% and 100.0% of their room-temperature capacities at -40 °C. Even the LiCoO2 //graphite pouch cells can retain 68.7% of the room-temperature capacity when discharged at -70 °C, and present stable cycling performance at -40 and 60 °C. This work provides a solution for the development of advanced electrolytes to enable LIBs working at wide-temperatures range.
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Affiliation(s)
- Laibing Luo
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Kean Chen
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Hui Chen
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Hui Li
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Ruoyu Cao
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Xiangming Feng
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Weihua Chen
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Yongjin Fang
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Yuliang Cao
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
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