Electroreduced graphene oxide-nickel biscorrole/platinum nanocluster supermolecular composite material, and preparation method and application thereof

A technology of nickel biscorroles and composite materials, which is applied in the field of electroreduction graphene oxide-nickel biscorroles/platinum nanoclusters and its preparation, and achieves the effects of high dispersion, small size, and elimination of surface-adsorbed CO.

Active Publication Date: 2018-07-20
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There have been many reports in the literature on the use of graphene as the supporting matrix of platinum nanoclusters, but so far, there has been no report on the synthesis of highly dispersed platinum nanoclusters using graphene-porphyrin composites as a supporting matrix.

Method used

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  • Electroreduced graphene oxide-nickel biscorrole/platinum nanocluster supermolecular composite material, and preparation method and application thereof
  • Electroreduced graphene oxide-nickel biscorrole/platinum nanocluster supermolecular composite material, and preparation method and application thereof
  • Electroreduced graphene oxide-nickel biscorrole/platinum nanocluster supermolecular composite material, and preparation method and application thereof

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Embodiment

[0052] (1) Preparation of graphene oxide-nickel biscarbazole: Disperse 50mg of graphene oxide in freshly steamed 50mL DMF, ultrasonically disperse for 30 minutes, then add 5mg of nickel biscarbazole (NiNC) to the mixed solution, and ultrasonic treatment 20min, stir the reaction at 60℃ for 2h, after cooling to room temperature, centrifuge at 14000rpm to remove the physically adsorbed nickel biscarbazole, wash the product alternately with water and DMF, centrifuge, and dry the product under vacuum for 24h;

[0053] (2) Preparation of graphene oxide-nickel biscorrole / platinum nanoclusters: 25mg graphene oxide-nickel biscorrole was added to 50ml of mixed reagent (ethylene glycol / water / DMF, V:V:V=3:1 : 1), ultrasonically disperse for 20 minutes, then add H dropwise 2 PtCl 6 Make the content 30mg / mL, stir well at room temperature for 20min, reflux the mixture at 110℃ for 2h, after cooling, wash the product alternately with ethanol and DMF, and finally centrifuge the product at 50℃ Dry ...

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Abstract

The invention discloses an electroreduced graphene oxide-nickel biscorrole/platinum nanocluster, and a preparation method and an application thereof. A graphene oxide-nickel biscorrole supermolecularcomposite material is prepared from nickel biscorrole and graphene oxide by using a non-covalent pi-pi stacking principle, a highly dispersed platinum nanocluster is synthesized by using graphene oxide-nickel biscorrole as a support matrix in order to prepare a ternary composite material, and the graphene oxide is reduced through an electrochemical technology by using the ternary composite material. The electroreduced graphene oxide-nickel biscorrole/Pt composite material has an extremely high electrocatalytic oxidation activity to methanol, and can be used in a methanol fuel cell. The preparation method is simple and convenient, and is easy to operate; and the prepared supermolecular compound has an extremely high stability as a methanol oxidation catalyst, and has extremely strong tolerance to CO possibly generated during methanol oxidation.

Description

Technical field [0001] The invention belongs to the technical field of material engineering, and in particular relates to an electro-reduced graphene oxide-nickel biscorrole / platinum nanocluster (ERGO-NiNC / Pt) and a preparation method and application thereof. Background technique [0002] Graphene has excellent electrical, thermal, and mechanical properties and is used in fields such as supercapacitors, solar cells, displays, biological testing, and fuel cells. However, due to the strong intermolecular force between graphene layers, it is extremely easy to agglomerate, difficult to disperse, and has poor compatibility. Deeply oxidized graphene oxide is an important precursor of graphene. It is easily reduced to form graphene. It can be functionally modified through organic covalent and non-covalent strategies to achieve stable dispersion, dissolution, and dispersion of graphene. Forming and processing. [0003] Porphyrin is a kind of cyclic molecule with large π-conjugated struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M4/92H01M4/88
CPCH01M4/8825H01M4/90H01M4/9008H01M4/921Y02E60/50
Inventor 邓克勤李春香黄昊文
Owner HUNAN UNIV OF SCI & TECH
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