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Synthesis and applications of MOF-derived porous nanostructures

Green Energy & Environment 2017年第3期2卷 218-245页

作者： Min Hui Yap Kam Loon Fow George Zheng Chen Department of Chemical and Environmental Engineering and Energy Engineering Research Group Faculty of Science and Engineering University of Nottingham Ningbo China Department of Chemical and Environmental Engineering and Advanced Materials Research Group Faculty of Engineering University of Nottingham

Metal organic frameworks(MOFs) represent a class of porous material which is formed by strong bonds between metal ions and organic linkers. By careful selection of constituents, MOFs can exhibit very high surface area, large pore volume, and excellent chemical *** on synthesis, structures and properties of various MOFs has shown that they are promising materials for many applications, such as energy storage, gas storage, heterogeneous catalysis and sensing. Apart from direct use, MOFs have also been used as support substrates for nanomaterials or as sacrificial templates/precursors for preparation of various functional nanostructures. In this review, we aim to present the most recent development of MOFs as precursors for the preparation of various nanostructures and their potential applications in energy-related devices and processes. Specifically, this present survey intends to push the boundaries and covers the literatures from the year 2013 to early 2017,on supercapacitors, lithium ion batteries, electrocatalysts, photocatalyst, gas sensing, water treatment, solar cells, and carbon dioxide ***, an outlook in terms of future challenges and potential prospects towards industrial applications are also discussed.

关键词： Metal organic frameworks porous nanostructures Supercapacitors Lithium ion batteries Heterogeneous catalyst

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Effect of Electrolyte Nature on Micellar Soft-Template Electropolymerization in Organic Solvent to Form Nanoporous Polymer Films with a Bioinspired Strategy

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Journal of Bionic Engineering 2022年第2期19卷 547-553页

作者： Caroline Fradin Francois Orange Sonia Amigoni Frédéric Guittard Thierry Darmanin NICE Lab UniversitéCote d’Azur06100 NiceFrance Centre Commun de Microscopie Appliquée(CCMA) UniversitéCote d’Azur06100 NiceFrance

Here,using a bioinspired approach,the soft-template electropolymerization of naphtho[2,3-b]thieno[3,4-e][1,4]dioxine(NaphDOT)was conducted in dichloromethane with different water content,and using different supporting *** role of the electrolytes in the formation of reverse micelles that constitutes the soft template is *** reverse micelles stabilized by the electrolyte and the monomer were observed by TEM and related to the various porous nanostructures of the obtained polymer *** show that the nature of the electrolyte is not only fundamental for the formation of reverse micelles and thus porous nanostructures,but also plays a huge role in the good deposition of the oligomers upon the soft *** with nanostructures such as nanotubes,nanorings or nanomembranes were realized.

关键词： Electropolymerization Soft template Reverse micelles porous nanostructures

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Secondary-Atom-Doping Enables Robust Fe-N-C Single-Atom Catalysts with Enhanced Oxygen Reduction Reaction

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Nano-Micro Letters 2020年第11期12卷 281-291页

作者： Xin Luo Xiaoqian Wei Hengjia Wang Wenling Gu Takuma Kaneko Yusuke Yoshida Xiao Zhao Chengzhou Zhu Key Laboratory of Pesticide and Chemical Biology of Ministry of Education International Joint Research Center for Intelligent Biosensing Technology and HealthCollege of ChemistryCentral China Normal UniversityWuhan 430079People’s Republic of China Innovation Research Center for Fuel Cells The University of Electro-CommunicationsChofugaokaChofuTokyo 182‑8585Japan

Single-atom catalysts(SACs) with nitrogen-coordinated nonprecious metal sites have exhibited inimitable advantages in ***,a large room for improving their activity and durability ***,we construct atomically dispersed Fe sites in N-doped carbon supports by secondary-atom-doped *** the secondary doping,the density and coordination environment of active sites can be efficiently tuned,enabling the simultaneous improvement in the number and reactivity of the active ***,structure optimizations in terms of the enlarged surface area and improved hydrophilicity can be achieved *** to the beneficial microstructure and abundant highly active FeN_5 moieties resulting from the secondary doping,the resultant catalyst exhibits an admirable half-wave potential of 0.81 V versus 0.83 V for Pt/C and much better stability than Pt/C in acidic *** work would offer a general strategy for the design and preparation of highly active SACs for electrochemical energy devices.

关键词： Single-atom catalysts Fe-N-C catalysts Doping porous nanostructures Oxygen reduction reaction

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