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interpenetrated structures for Enhancing Ion Diffusion Kinetics in Electrochemical Energy Storage Devices

Nano-Micro Letters 2024年第11期16卷 718-728页

作者： Xinzhe Xue Longsheng Feng Qiu Ren Cassidy Tran Samuel Eisenberg Anica Pinongcos Logan Valdovinos Cathleen Hsieh Tae Wook Heo Marcus A.Worsley Cheng Zhu Yat Li Department of Chemistry and Biochemistry University of California1156 High StreetSanta CruzCA 95064USA Lawrence Livermore National Laboratory 7000 East AvenueLivermoreCA 94550USA

The architectural design of electrodes offers new opportunities for next-generation electrochemical energy storage devices(EESDs)by increasing surface area,thickness,and active materials mass loading while maintaining good ion diffusion through optimized electrode ***,conventional thick electrodes increase ion diffusion length and cause larger ion concentration gradients,limiting reaction *** demonstrate a strategy for building interpenetrated structures that shortens ion diffusion length and reduces ion concentration *** free-standing device structure also avoids short-circuiting without needing a *** feature size and number of interpenetrated units can be adjusted during printing to balance surface area and ion *** with a 3D-printed interpenetrated polymer substrate,we metallize it to make it *** substrate has two individually addressable electrodes,allowing selective electrodeposition of energy storage *** a Zn//MnO_(2) battery as a model system,the interpenetrated device outperforms conventional separate electrode configurations,improving volumetric energy density by 221%and exhibiting a higher capacity retention rate of 49%compared to 35%at temperatures from 20 to 0℃.Our study introduces a new EESD architecture applicable to Li-ion,Na-ion batteries,supercapacitors,etc.

关键词： interpenetrated structure 3D printing Electrochemical energy storage Ion diffusion length Inter-electrode distance

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Synthesis, Crystal structure and Catalytic Properties of a Novel Ni(Ⅱ) MOF with a Rare [3+3+3] Nine Fold interpenetrated Network

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Chinese Journal of Structural Chemistry 2020年第8期39卷 1489-1495,1360页

作者： GUO Feng Chongqing Key Laboratory of Inorganic Special Functional Materials College of Chemistry and Chemical EngineeringYangtze Normal UniversityFulingChongqing 408100China

Metal-organic frameworks are a sort of rapid development crystal solids,which have greatly attracted a large amount of attention in recent *** construction of 3D[Ni(bcp)(bpp)]n(namely complex 1)displays a rare[3+3+3]nine-fold interpenetrated diamond topology,which can be successfully synthesized by a mixed strategy of 1,3-bis(4-carboxyphenoxy)propane(H2bcp)and 1,4-bis(4-pyridylmethyl)piperazine(bpp).The interpenetrated network may be ascribed to these flexible bridging linkers to facilitate the penetration *** addition,the resultant sample was adequately characterized by elemental analysis,single-crystal X-ray diffraction,powder X-ray diffraction,and thermal gravimetric ***,the as-synthesized sample can be used as catalysis for chemical fixation of CO2 and epoxide to carbonate.

关键词： Ni(Ⅱ)-organic framework interpenetrated structure CO2 catalysis

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