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学者姓名：蒋一东
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Abstract ：
The Liquid Antimony Anode-based Solid Oxide Fuel Cell (LAA-SOFC) represents a promising energy conversion approach for generating power using complex fuels. This study addresses the relationship between the liquid- -liquid distribution of Sb-Sb2O3 2 O 3 and the corresponding electrochemical performance of LAA-SOFC. A 2-D axisymmetric model that incorporates the two-phase flow of Sb-Sb2O3, 2 O 3 , alongside the electric field and the chemical/electrochemical reactions is successfully developed to explore the reaction and convection characteristics of LAA in LAA-SOFC under gravitational influence. The model results indicate that the density disparity between Sb and Sb2O3 2 O 3 can drive convection and stratification with Sb2O3 2 O 3 generation fostering continuous convection within the anode. The high Peclet number suggests that the convection is the primary transport mechanism in the anode. The limited Sb2O3 2 O 3 reduction results in its accumulation in the upper layer, diminishing the effective reaction area and leading to a rapid decline in discharge voltage. However, the ionic conductivity of Sb2O3 2 O 3 at the Sb/Sb2O3 2 O 3 interface can facilitate approximately 10-20% of the reactions, marginally mitigating the increase in voltage loss. To offset Sb2O3 2 O 3 accumulation's impact on the electrochemical reactions, a horizontal tubular LAA-SOFC is designed and constructed, which can effectively sustain the discharge voltage across a broad Sb2O3 2 O 3 fraction range of 0-85%.
Keyword ：
Liquid Antimony Anode Liquid Antimony Anode Multiphysics Simulation Multiphysics Simulation Reaction-induced Convection Reaction-induced Convection Solid Oxide Fuel Cell Solid Oxide Fuel Cell Two-phase Flow Two-phase Flow
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| GB/T 7714 | Jiang, Yidong , Liu, Chaojun , Gu, Xin et al. Development of liquid antimony anode-based fuel cells: Effects of reaction-induced convection on mass transfer and electrochemical performance [J]. | ENERGY CONVERSION AND MANAGEMENT , 2024 , 319 . |
| MLA | Jiang, Yidong et al. "Development of liquid antimony anode-based fuel cells: Effects of reaction-induced convection on mass transfer and electrochemical performance" . | ENERGY CONVERSION AND MANAGEMENT 319 (2024) . |
| APA | Jiang, Yidong , Liu, Chaojun , Gu, Xin , Shi, Yixiang , Yan, Wei , Zhang, Jiujun . Development of liquid antimony anode-based fuel cells: Effects of reaction-induced convection on mass transfer and electrochemical performance . | ENERGY CONVERSION AND MANAGEMENT , 2024 , 319 . |
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