PtIr nanocrystal with hollow porous bowl-shaped structure as well as preparation method and application of PtIr nanocrystal

The invention discloses a PtIr nanocrystal with a hollow porous bowl-shaped structure as well as a preparation method and application of the PtIr nanocrystal. According to the preparation method, Pt salt and Ir salt are used as metal precursors, methylene bisacrylamide (MBA) is used as a morphology...

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU YUDIE, XU LIN, ZHANG ZHENBO, TANG YAWEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CASTING CHEMISTRY CRYSTAL GROWTH ELECTRICITY MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH TRANSPORTING UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention discloses a PtIr nanocrystal with a hollow porous bowl-shaped structure as well as a preparation method and application of the PtIr nanocrystal. According to the preparation method, Pt salt and Ir salt are used as metal precursors, methylene bisacrylamide (MBA) is used as a morphology guiding agent, formaldehyde (HCHO) is used as a reducing agent, and the PtIr nanocrystal composed of superfine nanoparticles can be obtained through a one-step hydrothermal method. Compared with a traditional preparation method, the method is easy to operate, mild in condition, high in yield and capable of achieving large-scale production. The hollow porous bowl-shaped PtIr nanocrystal prepared by the method has the advantages of large specific surface area, rich active sites and the like, and has excellent electrocatalytic activity and stability on acidic hydrogen evolution reaction. 本发明公开了一种中空多孔碗状结构的PtIr纳米晶及其制备方法和应用。该制备方法以Pt盐和Ir盐为金属前驱体，甲叉双丙烯酰胺(MBA)为形貌导向剂，甲醛(HCHO)为还原剂，一步水热即可得到由超细纳米颗粒组成的PtIr纳米晶。与传统的制备方法相比，本方法操作简单、条