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

Solid oxide fuel cell anode material and preparation method and application thereof

A solid oxide and fuel cell technology, applied in the energy field, can solve the problems of violent powder expansion, waste of raw materials, and collection difficulties, and achieve the effects of enhancing electrical conductivity, easy operation, and avoiding collection difficulties

Pending Publication Date: 2021-07-27
KUNMING UNIV OF SCI & TECH
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the preparation scheme for synthesizing LSCM by solid-phase method is complex and difficult to operate; and the powder will expand violently during the preparation of LSCM by the glycine-nitrate method, resulting in difficulty in collection and waste of raw materials

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
  • Solid oxide fuel cell anode material and preparation method and application thereof
  • Solid oxide fuel cell anode material and preparation method and application thereof
  • Solid oxide fuel cell anode material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a method for preparing an anode material for a solid oxide fuel cell, comprising the following steps:

[0040] Sr(NO 3 ) 2 ·6H 2 O, La(NO 3 ) 3 ·6H 2 O, Cr(NO 3 ) 2·6H 2 O and Mn(NO 3 ) 2 , put it in a beaker, add deionized water and stir to dissolve until the solution is mixed and homogeneous; then weigh the corresponding mass of citric acid according to 1.5 times the molar weight of the total elements of lanthanum, strontium, chromium and manganese, and then stir in a magnetic stirrer Stir evenly for 2 hours, then place the beaker on an electric furnace to heat and boil until spontaneous combustion occurs, collect the reacted product and place it in a tube furnace, and calcinate it in an air atmosphere at 1350°C for 4 hours to obtain LSCM powder La x Sr 1-x Cr y mn 1-y o 3-δ In x=0.7, y=0.5, that is, the structural formula of the LSCM powder of this embodiment is La 0.7 Sr 0.3 Cr 0.5 mn 0.5 o 3-δ .

[0041] Weigh 6g of calc...

Embodiment 2

[0044] This embodiment provides a method for preparing an anode material for a solid oxide fuel cell, comprising the following steps:

[0045] Sr(NO 3 ) 2 ·6H 2 O, La(NO 3 ) 3 ·6H 2 O, Cr(NO 3 ) 2 ·6H 2 O and Mn(NO 3 ) 2 , put it in a beaker, add deionized water and stir to dissolve until the solution is mixed and homogeneous; then weigh the corresponding mass of citric acid according to 1.5 times the total element molar weight of lanthanum, strontium, chromium and manganese, and then stir it under magnetic force Stir in a container for 2 hours to stir evenly, then place the beaker on an electric furnace and heat to boil until spontaneous combustion occurs, collect the reacted product and place it in a tube furnace, and calcinate it in an air atmosphere at 1350°C for 4 hours to obtain the structural formula for la 0.7 Sr 0.3 Cr 0.5 mn 0.5 o 3-δ LSCM powder.

[0046] Weigh 6g of the calcined product LSCM powder in a beaker, add 3g of nickel nitrate, 1g of copper...

Embodiment 3

[0049] This embodiment provides a method for preparing an anode material for a solid oxide fuel cell, comprising the following steps:

[0050] Sr(NO 3 ) 2 ·6H 2 O, La(NO 3 ) 3 ·6H 2 O, Cr(NO 3 ) 2 ·6H 2 O and Mn(NO 3 ) 2 , put it in a beaker, add deionized water and stir to dissolve until the solution is mixed and homogeneous; then weigh the corresponding mass of citric acid according to 1.5 times the total element molar weight of lanthanum, strontium, chromium and manganese, and then stir it under magnetic force Stir in a container for 2 hours to stir evenly, then place the beaker on an electric furnace and heat to boil until spontaneous combustion occurs, collect the reacted product and place it in a tube furnace, and calcinate it in an air atmosphere at 1350°C for 4 hours to obtain LSCM powder.

[0051] Weigh 6g of the calcined product LSCM powder in a beaker, add 2g of nickel nitrate, 2g of copper nitrate and deionized water, place the beaker containing the mixe...

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
Specific surface areaaaaaaaaaaa
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a solid oxide fuel cell anode material as well as a preparation method and application thereof, and belongs to the technical field of energy materials. The preparation method of the solid oxide fuel cell anode material comprises the following steps of uniformly dispersing a copper source, a nickel source and LSCM powder in a water solvent, adding alkali until no blue flocculent precipitate is generated in a reaction, obtaining an intermediate product, then sintering the intermediate product for 0.5-3 hours at the temperature of 600-700 DEG C so as to obtain a precursor; and in a hydrogen atmosphere, carrying out heat preservation on the precursor at 600-700 DEG C for 0.5-3 hours to obtain the solid oxide fuel cell anode material. The general formula of the LSCM is LaxSr(1-x)CryMn(1-y)O(3-delta), wherein x is equal to 0.2 to 0.5, and y is equal to 0.4 to 0.6. The preparation method is simple in preparation process, short in preparation period, low in raw material price, is safe and is simple in required devices and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of energy technology, in particular to a solid oxide fuel cell anode material and a preparation method and application thereof. Background technique [0002] Solid oxide fuel cells (SOFCs) are energy conversion devices with high power generation efficiency and environmental friendliness, and thus are applied in various mobile and stationary development devices. SOFC is a device that can convert the chemical energy stored in the fuel into electrical energy. It does not need to go through the combustion process and is not limited by the Carnot cycle. It has the advantages of high energy conversion rate, low pollution, and low noise. The gas supplied to the anode side of the solid oxide fuel cell is generally a reducing gas such as hydrogen or carbon monoxide. Hydrogen production by reforming methane and carbon dioxide at the anode end is a more economical and convenient hydrogen production technology. However, the big...

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): H01M4/90H01M4/86H01M8/0612H01M8/12H01M8/1231
CPCH01M4/9033H01M4/8663H01M4/8673H01M4/8647H01M8/0618H01M8/12H01M8/1231H01M2008/1293Y02P70/50Y02E60/50
Inventor 马文会于洁王彬乔翠吕国强万小涵李绍元
Owner KUNMING UNIV OF SCI & TECH
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