Transition metal nitrides have attracted consider-able attention as great potential anode materials due to their excel-lent metallic conductivity and high theoretical specific capacity.How-ever,their cycling performance is impeded by their instability caused by the reaction mechanism.Herein,we report the engineering and synthesis of a novel hybrid archi-tecture composed of MoO2.0N0.5 atomic nanoclusters bonded in nanosheets of N-doped carbon hierarchical hollow microspheres(MoO2 0N0 5/NC)as an anode material for sodium-ion batteries.The facile self-templating strategy for the synthesis of MoO2.0N0.5/NC involves chemical polymerization and subsequent one-step calcination treatments.The design is benefi-cial to improve the electrochemical kinetics,buffer the volume variation of electrodes during cycling,and provide more interfacial active sites for sodium uptake.Due to these unique structural and compositional merits,these MoO2.0N0.5/NC exhibits excellent sodium storage performance in terms of superior rate capability and stable long cycle life.The work shows a feasible and effective way to design novel host candidates and solve the long-term cycling stability issues for sodium-ion batteries.

Xiaona Pan;Baojuan Xi;Huibing Lu;Zhengchunyu Zhang;Xuguang An;Jie Liu;Jinkui Feng;Shenglin Xiong

School of Chemistry and Chemical Engineering,State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,People's Republic of China;School of Mechanical Engineering,Chengdu University,Chengdu 610106,People's Republic of China;The State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,People's Republic of China;School of Materials Science and Engineering,Shandong University,Jinan 250100,People's Republic of China

纳微快报（英文）

[1]Xiaona Pan;Baojuan Xi;Huibing Lu;Zhengchunyu Zhang;Xuguang An;Jie Liu;Jinkui Feng;Shenglin Xiong-.Molybdenum Oxynitride Atomic Nanoclusters Bonded in Nanosheets of N-Doped Carbon Hierarchical Microspheres for Efficient Sodium Storage)[J].纳微快报（英文）,2022(10):148-163

Oxynitride,0N0

Molybdenum,Atomic,Nanoclusters,Bonded,Nanosheets,Doped,Carbon,Hierarchical,Microspheres,Efficient,Sodium,Storage,Transition,nitrides,have,attracted,consider,attention,great,potential,anode,materials,due,their,metallic,conductivity,high,theoretical,specific,capacity,How,ever,cycling,performance,impeded,by,instability,caused,reaction,mechanism,Herein,we,report,engineering,synthesis,novel,hybrid,tecture,composed,MoO2,atomic,nanoclusters,bonded,nanosheets,doped,carbon,hierarchical,hollow,microspheres,NC,sodium,batteries,facile,self,templating,strategy,involves,polymerization,subsequent,one,step,calcination,treatments,design,benefi,improve,electrochemical,kinetics,buffer,volume,variation,electrodes,during,provide,more,interfacial,active,sites,uptake,Due,these,unique,structural,compositional,merits,exhibits,excellent,storage,terms,superior,capability,stable,long,cycle,life,work,shows,feasible,effective,way,host,candidates,solve,issues

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