Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method and application of anode catalyst of direct borohydride fuel cell

A borohydride, fuel cell technology, applied in fuel cells, battery electrodes, circuits, etc., can solve problems such as problems that cannot be completely solved, and achieve the effect of improving discharge efficiency

Inactive Publication Date: 2016-06-08
BEIFANG UNIV OF NATITIES
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the above-mentioned catalytic materials are useful for catalytic BH 4 - It has a good effect, but the problem still cannot be completely solved, and the anode material is still one of the keys to DBFC research

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
  • Preparation method and application of anode catalyst of direct borohydride fuel cell
  • Preparation method and application of anode catalyst of direct borohydride fuel cell
  • Preparation method and application of anode catalyst of direct borohydride fuel cell

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The preparation method of direct borohydride fuel cell anode catalyst provided by the invention comprises the following steps:

[0026] (1) Take Co 2+ solution, drop ammonia water therein, and stir until the pH value is 8.5 to 9 to obtain a mixed solution, which is subjected to solid-liquid separation;

[0027] (2) Taking the separated solid phase, washing, drying, grinding and roasting in sequence to obtain the direct borohydride fuel cell anode catalyst.

[0028] Specifically, in step (1), Co 2+ The solution is one of cobalt chloride, cobalt nitrate or cobalt acetate.

[0029] It has been found through experiments that the discharge specific capacity of the anode catalysts prepared with different Co sources is different, among which, the discharge specific capacity of the anode catalyst prepared by using cobalt chloride as the Co source is the largest.

[0030] As preferably, in step (1), Co 2+ The solution is cobalt chloride.

[0031] The drying temperature and ...

Embodiment 1

[0039] 1. Direct borohydride fuel cell anode catalyst Co 3 o 4 Synthesis

[0040] The specific method is as follows:

[0041] (1) Prepare a cobalt chloride solution with a concentration of 1mol L-1, add ammonia water drop by drop to the solution and stir until the color of the mixed solution turns green and its pH value is measured to be in the range of 8.5 to 9, then stop dripping Add ammonia water, stir the mixture for 30 minutes, and then filter it with suction.

[0042] (2) Suction filtration At the same time, the solid phase obtained during the suction filtration was washed successively with deionized water and alcohol, 3 times with deionized water and 2 times with alcohol; dry the washed solid phase at 80 °C for 24 hours; Grind the dried solid phase and put it in a muffle furnace for calcination; the calcination temperature control process is as follows: firstly raise the temperature to 275°C for 2 hours, then keep it warm for 2 hours, and after cooling to room temper...

Embodiment 2

[0051] 1. Direct borohydride fuel cell anode catalyst Co 3 o 4 Synthesis

[0052] The specific method is as follows:

[0053] (1) Prepare a cobalt nitrate solution with a concentration of 1mol L-1, add ammonia water drop by drop to the solution and stir until the color of the mixed solution turns green and the measured pH value is in the range of 8.5 to 9, then stop adding Ammonia, after stirring the mixture for 30 min, it was suction filtered.

[0054] (2) Suction filtration At the same time, the solid phase obtained during the suction filtration was washed successively with deionized water and alcohol, 3 times with deionized water and 2 times with alcohol; dry the washed solid phase at 80 °C for 24 hours; Grind the dried solid phase and put it in a muffle furnace for calcination; the calcination temperature control process is as follows: firstly raise the temperature to 275°C for 2 hours, then keep it warm for 2 hours, and after cooling to room temperature with the furnac...

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
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of borohydride fuel cell production, and providing a preparation method of an anode catalyst of a direct borohydride fuel cell. The method comprises the following steps that a Co<2+> solution is taken; ammonia water is dripped into the solution; stirring is performed until the pH value is 8.5 to 9; a mixed solution is obtained; the mixed solution is subjected to solid-liquid separation; solid phases after separation are taken and are sequentially subjected to cleaning, drying, grinding and roasting; the anode catalyst of the direct borohydride fuel cell is obtained. The anode catalyst obtained through preparation has the advantages that the side reaction of hydrogen gas generation through anode hydrolysis in the direct borohydride fuel cell can be inhibited, and the discharging efficiency of anode fuels is improved.

Description

technical field [0001] The invention relates to the technical field of borohydride fuel cell production, in particular to a preparation method and application of a direct borohydride fuel cell anode catalyst. Background technique [0002] Direct borohydride fuel cell (DBFC), as a direct liquid fuel cell, combines the advantages of proton exchange membrane fuel cell (PEMFC) and direct methanol fuel cell (DMFC), and its theoretical specific energy is as high as 93kWh kg -1 (NaBH 4 ), and has higher theoretical electromotive force (1.64V) and theoretical energy conversion rate (91%), safe and non-toxic, is a kind of ideal fuel cell. [0003] At present, the main obstacles restricting the development of DBFC are: ① high production cost, and the catalytic materials with good catalytic performance are mostly noble metals; ② hydrolysis of anode borohydride reduces fuel utilization; ③ packaging problems caused by fuel penetration. [0004] The anode catalysts studied today are mai...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/90H01M8/1009
CPCH01M4/88H01M4/90H01M8/1009Y02E60/50Y02P70/50
Inventor 马金福
Owner BEIFANG UNIV OF NATITIES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com