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An intermediate temperature solid oxide fuel cell fueled by carbon and water

A solid oxide and fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve the problems of insufficient utilization of carbon materials and unfavorable utilization of carbon materials, so as to achieve good safety and high efficiency, and increase productivity , easy to carry and store

Active Publication Date: 2022-06-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although solid oxide fuel cells that directly use carbon as fuel have high output power and specific energy density, there is a problem that carbon materials cannot be fully utilized, because solid oxide fuel cells that directly use carbon as fuel need to operate at high temperatures , and the electrochemical oxidation equilibrium product gas of high-temperature carbon is CO, which is not conducive to the full utilization of carbon materials

Method used

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  • An intermediate temperature solid oxide fuel cell fueled by carbon and water
  • An intermediate temperature solid oxide fuel cell fueled by carbon and water
  • An intermediate temperature solid oxide fuel cell fueled by carbon and water

Examples

Experimental program
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Effect test

Embodiment 1

[0065] According to the stoichiometric ratio, weigh 9.865g BaCO respectively 3 , 0.616g ZrO 2 , 6.024g CeO 2 , 1.129g Y 2 O 3 Put it into the ball-milling jar, then add 36 mL of anhydrous ethanol, perform ball milling for 6 hours at a speed of 500 r / min, and place it under a sodium lamp for 24 hours. Then, the perovskite BaZr was obtained after holding at 1150 °C for 10 h. 0.1 Ce 0.7 Y 0.2 O 3-δ powder.

[0066] Preparation of Porous Anode Substrate: Weigh 5.76g of NiO and 3g of BaZr 0.1 Ce 0.7 Y 0.2 O 3-δ Mixed with 1.75g ​​soluble starch, 36mL absolute ethanol, rotating speed of 500r / min, ball milling for 6h, under sodium lamp for 24h, to obtain uniformly mixed anode powder, and then kept under 200MPa for 2min to obtain a disc sample, and at 800 It was kept at ℃ for 2 h to form a porous anode substrate.

[0067] Preparation of Anode Support Electrolyte: Impregnate the electrolyte layer on the anode support by the impregnation method: Weigh 5.00g BaZr 0.1 Ce 0....

Embodiment 2

[0075] According to the stoichiometric ratio, weigh 9.865g BaCO respectively 3 , 0.616g ZrO 2 , 6.024g CeO 2 , 1.129g Y 2 O 3 Put it into the ball-milling jar, then add 36 mL of anhydrous ethanol, perform ball milling for 6 hours at a speed of 500 r / min, and place it under a sodium lamp for 24 hours. Then, the perovskite BaZr was obtained after holding at 1150 °C for 10 h. 0.1 Ce 0.7 Y 0.2 O 3-δ powder.

[0076] Preparation of Porous Anode Substrate: Weigh 5.76g of NiO and 3g of BaZr 0.1 Ce 0.7 Y 0.2 O 3-δ Mixed with 1.75g ​​soluble starch, 36mL absolute ethanol, rotating speed of 500r / min, ball milling for 6h, under sodium lamp for 24h, to obtain uniformly mixed anode powder, and then kept under 200MPa for 2min to obtain a disc sample, and at 800 It was kept at ℃ for 2 h to form a porous anode substrate.

[0077] Preparation of Anode Support Electrolyte: Impregnate the electrolyte layer on the anode support by the impregnation method: Weigh 5.00g BaZr 0.1 Ce 0....

Embodiment 3

[0085] According to the stoichiometric ratio, weigh 9.865g BaCO respectively 3 , 0.616g ZrO 2 , 6.024g CeO 2 , 1.129g Y 2 O 3 Put it into the ball-milling jar, then add 36 mL of anhydrous ethanol, perform ball milling for 6 hours at a speed of 500 r / min, and place it under a sodium lamp for 24 hours. Then, the perovskite BaZr was obtained after holding at 1150 °C for 10 h. 0.1 Ce 0.7 Y 0.2 O 3-δ powder.

[0086] Preparation of Porous Anode Substrate: Weigh 5.76g of NiO and 3g of BaZr 0.1 Ce 0.7 Y 0.2 O 3-δ Mixed with 1.75g ​​soluble starch, 36mL absolute ethanol, rotating speed of 500r / min, ball milling for 6h, under sodium lamp for 24h, to obtain uniformly mixed anode powder, and then kept under 200MPa for 2min to obtain a disc sample, and at 800 It was kept at ℃ for 2 h to form a porous anode substrate.

[0087] Preparation of Anode Support Electrolyte: Impregnate the electrolyte layer on the anode support by the impregnation method: Weigh 5.00g BaZr 0.1 Ce 0....

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Abstract

The invention discloses a medium-temperature solid oxide fuel cell using carbon and water as fuel, which includes a porous cathode, a dense electrolyte, a porous anode, a reactor and a heat source; the reactor is composed of a top cavity and a reaction cavity connected to each other; The porous anode is sealed to the top cavity of the reactor through a seal; the reaction cavity is filled with solids, and the solids include at least a catalyst and a carbon material; the catalyst is a transition metal oxide; one end of the water vapor inlet conduit is connected to the reaction space The bottom of the cavity is connected, the other end is connected to the water source, and the reaction cavity is placed in the heat source; the tail gas outlet conduit extends from the outside into the reaction cavity and extends to the top cavity. The fuel of the invention is carbon and water, and has the advantages of safety, cheapness and wide sources. The invention has the characteristics of safety, environmental protection, high efficiency and low cost, and is especially suitable for small solid oxide fuel cells, such as backup power sources and portable power sources.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a medium-temperature solid oxide fuel cell using carbon and water as fuel, and belongs to the technical field of batteries. Background technique [0002] In recent years, with the development of the economy and the improvement of environmental protection awareness, the commonly used renewable energy sources, including solar energy, wind energy and tidal energy have developed rapidly, but their intermittent and regional characteristics limit their further development. Therefore, the development of A renewable, clean and efficient energy source is particularly important. Solid oxide fuel cells have received great attention and research due to their many advantages. Traditional oxygen ion conductors need to operate at high temperatures (800-1000 °C). Therefore, it brings a series of corresponding problems, such as sealing problems, Disadvantages such as the reaction of the electrode with the electrol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1253H01M8/126H01M8/1233
CPCH01M8/1253H01M8/126H01M8/1233Y02E60/50
Inventor 刘江陈美龙周明扬朱子翼曹丹
Owner SOUTH CHINA UNIV OF TECH