管式电解质支撑型直接碳固体氧化物燃料电池的浸渍法制备及电性能

引用本文: 谢永敏, 王晓强, 刘江, 余长林. 管式电解质支撑型直接碳固体氧化物燃料电池的浸渍法制备及电性能[J]. 物理化学学报, 2017, 33(2): 386-392. doi: 10.3866/PKU.WHXB201610104 shu

Citation: XIE Yong-Min, WANG Xiao-Qiang, LIU Jiang, YU Chang-Lin. Fabrication and Performance of Tubular Electrolyte-Supporting Direct Carbon Solid Oxide Fuel Cell by Dip Coating Technique[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 386-392. doi: 10.3866/PKU.WHXB201610104 shu

管式电解质支撑型直接碳固体氧化物燃料电池的浸渍法制备及电性能

1.
江西理工大学冶金与化学工程学院, 江西赣州 341000;
2.
华南理工大学环境与能源学院新能源研究所, 广州 510006
基金项目:
国家自然科学基金（21276097，21567008，21263005）资助项目

摘要: 管状电解质支撑型固体氧化物燃料电池（SOFC）具有稳定性高、电极选择范围广、易封接等优点，很适合应用于直接碳固体氧化物燃料电池（DC-SOFC）现阶段的基础研究中。为实现管状电解质支撑型SOFC的便捷制备，本研究开发了管状YSZ（钇稳定化氧化锆）电解质支撑膜的浸渍法制备工艺。组装了电极材料为Ag-GDC（钆掺杂氧化铈）的电解质支撑型SOFC单电池。测试了单电池分别以加湿氢气和担载5%（w，质量分数）Fe的活性炭为燃料，环境空气为氧化剂的电性能。电池的开路电压接近理论值，且扫描电镜分析结果表明电解质膜致密。单电池以活性碳为燃料在800℃取得了280 mW·cm^-2的最大功率密度，接近其以加湿氢气为燃料的330 mW·cm^-2。交流阻抗谱结果表明YSZ电解质的欧姆电阻是影响电池性能的主要原因。DC-SOFC以恒电流1 A放电，运行了2.1 h，燃料利用率为36%。DC-SOFC二次装载碳燃料后的电性能几乎与初次的性能一样，表明制备的YSZ电解质支撑膜可稳定的应用于DC-SOFCs中。分析了DC-SOFC放电过程中电性能衰减的机制。

关键词:

English

Fabrication and Performance of Tubular Electrolyte-Supporting Direct Carbon Solid Oxide Fuel Cell by Dip Coating Technique

1.
School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China;
2.
New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China
Received Date: 17 August 2016
Revised Date: 10 October 2016
Fund Project:
The project was supported by the National Natural Science Foundation of China (21276097, 21567008, 21263005).

Abstract: Tubular electrolyte-supporting solid oxide fuel cells (SOFCs) are particularly suitable for fundamental research of direct carbon SOFCs (DC-SOFCs) because they exhibit high stability, have simple seal requirements and are compatible with a variety of electrode materials. We have developed a dip-coating technique for the simple preparation of tubular electrolyte-supporting SOFCs using tubular yttria-stabilized zirconia (YSZ) electrolyte membrane substrates. Single SOFCs were assembled with a cermet consisting of gadolinium doped ceria (GDC) mixed with silver as both the cathode and anode. The single cells were tested with humidified hydrogen and 5% Fe-loaded activated carbon (w, mass fraction) as the fuel. Ambient air was used as the oxidant. The open-circuit voltages were comparable to the theoretical values and the scanning electron microscopy (SEM) results showed that the electrolyte membrane was quite dense. The cell that used activated carbon as fuel exhibited a maximum power density of 280 mW·cm^-2 at 800℃, which was close to that of a cell that used hydrogen as fuel (330 mW·cm^-2). The results of impedance spectroscopy showed that the performance of the cells was mainly influenced by the electrolyte ohmic resistance. The discharge time of the DC-SOFC at a constant current of 1 A was 2.1 h, which represented a fuel utilization of 36%. The performance of the DC-SOFC with reloaded fuel was nearly identical to its initial performance, which indicated that the YSZ electrolyte membrane substrate was stable when used in the DC-SOFCs. The degradation performance of the DC-SOFC during the discharge test was also analyzed.

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沈阳化工大学材料科学与工程学院沈阳 110142

管式电解质支撑型直接碳固体氧化物燃料电池的浸渍法制备及电性能

English

Fabrication and Performance of Tubular Electrolyte-Supporting Direct Carbon Solid Oxide Fuel Cell by Dip Coating Technique

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

管式电解质支撑型直接碳固体氧化物燃料电池的浸渍法制备及电性能

English

Fabrication and Performance of Tubular Electrolyte-Supporting Direct Carbon Solid Oxide Fuel Cell by Dip Coating Technique

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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