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
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  • 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

Method used

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  • 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
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Example Embodiment

[0038] Example 1

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

[0040] According to strontium: lanthanum: chromium: manganese = 3: 7: 5: 5 molar ratio, weigh 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 Placed in a beaker, the addition of deionized water is stirred to dissolve the solution is mixed; then according to ruthenium, strontium, chromium and the total element of the total element of the total element, the corresponding mass of citric acid is referred to, and then stirring in a magnetic stirrer The stirring was evenly stirred at 2 hours, and then the beaker was placed on the electric furnace to heat the boiling until the self-ignition phenomenon was collected, and the reaction was collected and placed in the tube furnace, calcined in the air atmosphere of 1350 ° C for 4 hours, to obtain LSCM powder La x SR 1-x CR y Mn 1-y O 3-δ The structural formula of the L...

Example Embodiment

[0043] Example 2

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

[0045] According to strontium: lanthanum: chromium: manganese = 3: 7: 5: 5 molar ratio, weigh 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 In the beaker, the addition of deionized water is stirred to dissolve into a mixed homogeneity; then according to the total element of the total element of ruthenium, strontium, chromium and manganese, weigh the corresponding mass of citric acid, and then stirred in magnetic force The mixture was stirred evenly for 2 hours, and then the beaker was placed on the electric furnace to heat the boiling until the self-ignition phenomenon, the product was collected and placed in the tube furnace, and calcined in the air atmosphere of 1350 ° C for 4 hours to obtain a structural formula. LA 0.7 SR 0.3 CR 0.5 Mn 0.5 O 3-δ LSCM powder.

[0046] It is weighted 6 g of calcined pro...

Example Embodiment

[0048] Example 3

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

[0050] According to strontium: lanthanum: chromium: manganese = 3: 7: 5: 5 molar ratio, weigh 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 In the beaker, the addition of deionized water is stirred to dissolve into a mixed homogeneity; then according to the total element of the total element of ruthenium, strontium, chromium and manganese, weigh the corresponding mass of citric acid, and then stirred in magnetic force The mixture was stirred evenly for 2 hours, and then the beaker was placed on the electric furnace to heat the boiling until spontaneous combustion phenomenon, and the product was collected and placed in a tube furnace, calcined in a gas atmosphere of 1350 ° C for 4 hours, to obtain LSCM powder.

[0051] It is weighted 6 g of calcined product LSCM powder in the beaker, and 2g nitrate and 2 g...

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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

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Application Information

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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
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