Unlock instant, AI-driven research and patent intelligence for your innovation.

Anode catalyst porous array Pt-p-HxMoO3 for direct methanol fuel cell and preparation method of anode catalyst porous array Pt-p-HxMoO3

A pt-p-hxmoo3, methanol fuel cell technology, used in battery electrodes, chemical instruments and methods, physical/chemical process catalysts, etc. simple method effect

Active Publication Date: 2014-02-26
SOUTH CHINA NORMAL UNIVERSITY
View PDF12 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the porous array Pt-H x MoO 3 Catalysts are less studied

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anode catalyst porous array Pt-p-HxMoO3 for direct methanol fuel cell and preparation method of anode catalyst porous array Pt-p-HxMoO3
  • Anode catalyst porous array Pt-p-HxMoO3 for direct methanol fuel cell and preparation method of anode catalyst porous array Pt-p-HxMoO3
  • Anode catalyst porous array Pt-p-HxMoO3 for direct methanol fuel cell and preparation method of anode catalyst porous array Pt-p-HxMoO3

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Pretreatment of glass slides (3cm×3cm in size): wash with detergent first, then sonicate with acetone for 1h, then sonicate with absolute ethanol for 1h, and then use concentrated H with a volume ratio of 3:1 2 SO 4 (mass fraction of 98%) and hydrogen peroxide (mass fraction of 30%) mixed solution soaked for 2h, and then with a volume ratio of 5:1:1 deionized water, ammonia (mass fraction of 28%) and hydrogen peroxide (mass fraction 30%) in a mixed solution for 2 hours, finally washed with deionized water, and dried at 70°C to obtain a pretreated glass sheet;

[0038] ITO conductive glass (size 1cm×2cm, resistance 20Ω / cm 2 ) pretreatment: first wash with detergent, then ultrasonically use acetone for 1h, then use absolute ethanol for 1h, and finally wash with deionized water and dry at 70°C to obtain pretreated ITO conductive glass;

[0039] Take 30mL of styrene and 200mL of deionized water, put them in a 500mL four-neck round bottom flask, mix, heat and stir to 7...

Embodiment 2

[0046] (1) Pretreatment of glass slides (3cm×3cm in size): wash with detergent first, then sonicate with acetone for 2 hours, then sonicate with absolute ethanol for 2 hours, and then use concentrated H with a volume ratio of 4:1 2 SO 4 (mass fraction of 98%) and hydrogen peroxide (mass fraction of 30%) mixed solution soaked for 3h, and then with a volume ratio of 6:1:1 deionized water, ammonia (mass fraction of 28%) and hydrogen peroxide (mass fraction 30%) in a mixed solution for 3 hours, finally washed with deionized water, and dried at 80°C to obtain a pretreated glass sheet;

[0047] ITO conductive glass (size 1cm×2cm, resistance 20Ω / cm 2 ) pretreatment: first wash with detergent, then ultrasonically use acetone for 2 hours, then use absolute ethanol for 2 hours, and finally wash with deionized water, and dry at 80°C to obtain pretreated ITO conductive glass;

[0048] Take 40mL of styrene and 250mL of deionized water, put them in a 500mL four-necked round bottom flask, ...

Embodiment 3

[0055] (1) Pretreatment of glass slides (3cm×3cm in size): wash with detergent first, then sonicate with acetone for 0.5h, then sonicate with absolute ethanol for 0.5h, and then use concentrated H with a volume ratio of 2:1 2 SO 4 (mass fraction of 98%) and hydrogen peroxide (mass fraction of 30%) mixed solution for 1h, and then with a volume ratio of 4:1:1 deionized water, ammonia (mass fraction of 28%) and hydrogen peroxide (mass fraction 30%) in a mixed solution for 1 hour, finally washed with deionized water, and dried at 70°C to obtain a pretreated glass sheet;

[0056] ITO conductive glass (size 1cm×2cm, resistance 20Ω / cm 2 ) pretreatment: first wash with detergent, then ultrasonically use acetone for 0.5h, then use absolute ethanol for 0.5h, and finally wash with deionized water and dry at 70°C to obtain pretreated ITO conductive glass ;

[0057] Take 20mL of styrene and 150mL of deionized water, put them in a 500mL four-neck round bottom flask, mix, heat and stir to...

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

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Active areaaaaaaaaaaa
Peak currentaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of fuel cells, and discloses an anode catalyst porous array Pt-p-HxMoO3 for a direct methanol fuel cell and a preparation method of the anode catalyst porous array Pt-p-HxMoO3. The preparation method comprises the steps of forming a single-layer PS (polystyrene spheres) template on ITO (indium tin oxide) conductive glass by adopting a rotary spraying method; adding HCHO into a molybdic acid solution to generate hydrogen molybdenum bronze sol; dropping the hydrogen molybdenum bronze sol on the ITO conductive glass loaded with the PS template by using a sol-gel method to ensure that the hydrogen molybdenum bronze sol is filled in gaps of the PS template, drying, and then removing the PS template by using a methylbenzene solution to obtain a porous array HxMoO3; performing electrodeposition on the porous array HxMoO3 in a H2PtCl6 solution by using an electrochemical method of impulse voltage, and reducing a platinum precursor into nano platinum to obtain the anode catalyst porous array Pt-p-HxMoO3 for the direct methanol fuel cell. The catalyst disclosed by the invention is large in specific area, good in morphology and structure, high in electrocatalysis methanol oxidation activity and strong in intermediate product poisoning resistance.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to an anode catalyst porous array Pt-p-H for direct methanol fuel cells x MoO 3 and its preparation method. Background technique [0002] Direct methanol fuel cell (DMFC) is a power generation device that directly converts the chemical energy of methanol oxidation reaction into electrical energy. Considered to be one of the fuel cells most likely to be commercialized. However, the development of DMFC still faces many problems, especially the high cost and low activity of the anode catalyst. In order to accelerate the commercialization of DMFC, it is very important and critical to develop low-platinum, high-activity anode catalysts. [0003] Studies have shown that H x MoO 3 It has a good promotion effect on platinum-catalyzed oxidation of methanol, so Pt-H x MoO 3 The composite catalyst has a good application prospect in DMFC anode catalyst. The two-dimensional and three-dimension...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M4/88H01M4/90H01M4/92B01J23/652B01J35/10
CPCY02E60/50H01M4/8817H01M4/925
Inventor 李伟善王晓君吴伟向兴德
Owner SOUTH CHINA NORMAL UNIVERSITY