Preparation method of W18o49/NF self-supporting electrocatalytic material

An electrocatalytic material, self-supporting technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as the influence of nanomaterials electrochemical performance, and avoid the influence of conductivity and activity. , low energy consumption, and the effect of improving electrocatalytic performance
CN109731580AActive Publication Date: 2019-05-10SHAANXI UNIV OF SCI & TECH
7 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Publication Date
2019-05-10

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

A preparation method of a W18o49 / NF self-supporting electrocatalytic material comprises: adding a tungsten source into a mixed alcohol to obtain a solution A; adding analytically pure ethanediamine and cycloheptylamine into the solution A to obtain a solution B; pouring the solution B into a polytetrafluoroethylene-lined high-pressure reactor, subjecting nickel foam to hydrothermal reaction in thepolytetrafluoroethylene-lined high-pressure reactor with the solution B, cooling to room temperature after the reaction is over, centrifugally washing the final reaction product with absolute ethyl alcohol, and drying the centrifugally washed material to obtain the W18o49 / NF self-supporting electrocatalytic material. Since W18O49 having rich oxygen defects is directly grown on NF (nickel foam) through a one-step process, the influence of adhesive upon electrical conductivity and activity of a catalyst during preparation of a working electrode is avoided, with electrocatalytic performance effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of composite materials, in particular to a W 18 o 49 / NF self-supporting electrocatalytic materials preparation method. Background technique

[0002] Fossil fuel shortages and global climate deterioration are widespread concerns and urgency for researchers to develop alternative energy sources. Electrochemical electrolysis of water has been recognized as one of the most promising renewable energy conversion technologies among sustainable and clean energy resources. To ensure efficient water splitting, efficient and stable electrocatalysts with simultaneously significantly reduced overpotentials for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are required. At present, catalysts containing noble metals such as Pt and its alloys, RuO 2 and IrO 2 Still the most effective catalyst for OER and HER. However, the high cost and relative scarcity of noble metals limit their large-sc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More