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Mixed-phase composites derived from cobalt terephthalate as efficient battery-type electrodes for high-performance supercapattery

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Journal of Materials Science & Technology 2023年第26期157卷 220-233页

作者： Ramu Manikandan Antonysamy dennyson Savariraj Goli Nagaraju A.M.Kale J.Puigdollers Hyejin Park Hyun-Soo Kim Jae-Min Oh C.Justin Raj Byung Chul Kim department of Energy and Materials Engineering Dongguk University-SeoulSeoul 04620Republic of Korea Advanced Functional Nanohybrid Material Laboratory Department of ChemistryDongguk University Seoul-CampusJung-guSeoul04620Republic of Korea department of Materials Imperial College LondonLondon SW72AZUnited Kingdom department of Advanced Components and Materials Engineering Sunchon National University255Jungang-roSuncheon-siJellanamdo57922Republic of Korea department of Enginyeria Electrònica Universitat Politècnica CatalunyaBarcelona 08034Spain Next Generation Battery Research Center Korea Electrotechnology Research Institute(KERI)Changwon51543Republic of Korea Physics division School of Advanced SciencesVellore Institute of Technology(VIT)Chennai CampusChennai600127Tamil NaduIndia

Interfacial engineering of two-dimensional(2d)monometallic phosphides enables remarkable structural and electrochemical properties in energy storage ***,2d nanosheets(NSs)of FeP_(2)/Co_(2) P were grown on Ni-foam(FCP)using a solution-based and phosphorization approach to be used as freestanding for high-performance energy storage *** effective phosphorization strategy is successfully de-veloped to improve the overall crystalline phase,tailor the morphology,and boost the electrochemical performances of *** FCP NSs electrode exhibits a battery-type redox behavior with a maxi-mum high areal capacity of 1.96 C cm^(-2) at 4 mA cm^(-2) in 6 M KOH aqueous electrolyte compared to the other *** superior electrochemical performance was achieved by increasing the electroac-tive sites and high conductivity via surface tailoring and fast redox ***,a supercapattery was assembled utilizing FCP and activated carbon(AC)electrodes and it revealed maximum specific en-ergy(E_(s))and specific power(P_(s))of 41.2 Wh kg^(-1) and 7578 W kg^(-1) with good cycling stability of 91%after 10,000 cycles at 5 A g^(-1).Eventually,the supercapattery has been explored in practical applications by lighting up light-emitting diodes(LEds),representing the real-time performance of superior energy storage devices.

关键词： 2d nanosheet Monometallic phosphide Battery-type material Supercapattery Energy storage

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Two-dimensional metal-organic framework nanosheet composites:Preparations and applications

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Chinese Chemical Letters 2022年第2期33卷 693-702页

作者： Yutian Qin Yue Wan Jun Guo Meiting Zhao School of Chemistry Tiangong UniversityTianjin 300387China Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistryInstitute of Molecular Aggregation ScienceTianjin UniversityTianjin 300072China

As emerging two-dimensional materials, metal-organic framework(MOF) nanosheet composites possess many unique physical and chemical properties, thus being expected to be widely applied in gas separation and adsorption, energy conversion and storage, heterogeneous catalysis, sensing as well as biomedicine. In this review, we first introduce the methods for integrating MOF nanosheets with other materials to prepare multifunctional composites. Next, the applications of MOF nanosheet composites in versatile fields are summarized and discussed. We hope this review will be instructive for researchers in the aspects of designs, preparations and applications of MOF nanosheet composites.

关键词： Metal-organic framework 2d nanosheet Composite Energy conversion Catalysis Separation Biomedicine

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