Generalized assembly of sandwich-like 0D/2D/0D heterostructures with highly exposed surfaces toward superior electrochemical performances
作者机构：State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular ScienceFudan UniversityShanghai 200438China Collaborative Innovation Center of Chemistry for Energy MaterialsShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan UniversityShanghai 200438China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2022年第15卷第1期
页 面：255-263页
核心收录：
学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
基 金：support from the National Natural Science Foundation of China(NSFC)(Nos.22025501,21872038,21733003,51773042,and 51973040) the National Key R&D Program of China(Nos.2020YFB1505803 and 2017YFA0207303) Foshan Science and Technology Innovation Program(No.2017IT100121)
主 题：assembly heterostructures ligand-exchange MXene oxygen evolution supercapacitor
摘 要：Heterostructures composed of two-dimensional(2D)nanosheets and zero-dimensional(0D)nanoparticles(NPs)have attracted increasing attention because of the synergy arising from the coupling interactions between the two mixed-dimensional *** recent advances,it remains a challenge to fabricate 2D/0D heterostructures with clean and accessible surfaces,which is highly desirable for the diversity of catalytic,sensing,and energy storage ***,we report a generalized methodology that enables the facile assembly of sandwich-like 0D/2D/0D heterostructures with facilitated mass-transport channels and exposed surface active sites.A ligand-exchange strategy with HBF4 is employed to strip off the surface-coating ligands of colloidal NPs,rendering them positively charged and dispersible in polar *** allows subsequent electrostatic assembly of NPs with oppositely charged 2D nanosheets to afford sandwich-like 0D/2D/0D *** barely covered surfaces and the advantageous architectures of such sandwich-like 0D/2D/0D heterostructures induce the desired synergistic effect,making them particularly suitable for electrochemical energy storage and *** demonstrate this by employing MXene/NiFe_(2)O_(4) and MXene/Fe3O4 heterostructures for high-performance electrocatalytic oxygen evolution and supercapacitors,respectively.
维普期刊数据库