Aqueous tape casting technology of NiO-YSZ electrode for solid oxide cells

被引：0

作者：

Ye C. ^{[1
,2
]}

Geng J. ^{[2
]}

Xie J. ^{[3
]}

Lin X. ^{[2
]}

Li Z. ^{[4
]}

Bian W. ^{[4
]}

Zhang L. ^{[2
]}

Wang Y. ^{[1
]}

Wang J. ^{[2
]}

机构：

[1] College of Science, Shenyang University of Chemical Technology, Shenyang

[2] Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai

[3] Shanghai Hydrogen Technology Co., Ltd, Shanghai

[4] Shanghai Power Equipment Research Institute Co., Ltd., Shanghai

来源：

He Jishu/Nuclear Techniques | 2022年 / 45卷 / 10期

关键词：

Aqueous slurry; Dispersed state; Reversible solid oxide cell; Tape casting;

D O I：

10.11889/j.0253-3219.2022.hjs.45.100501

中图分类号：

学科分类号：

摘要：

[Background] Solid oxide cell (SOC) is the core converter for hydrogen production by high temperature electrolysis of water vapor and hydrogen fuel utilization. [Purpose] This study aims to develope two kinds of aqueous casting pastes of NiO-YSZ with different components for the batch preparation of SOC without the usage of a large number of organic solvents. [Methods] A 10 cm×10 cm large-scale full-scale cell was prepared by screen printing the hydrogen electrode functional layer, electrolyte layer, barrier layer and oxygen electrode layer with NiO-YSZ support film at one time casting of about 450 μm. The effect of dispersant on the microstructure of hydrogen electrode support and the stability of the pastes were analyzed by scanning electron microscope (SEM). The performance of the SOCs were tested by I-V curve and electrochemical impedance. [Results] Based on the optimized NiO-YSZ supports, the prepared planar SOCs delivers a peak power density of 0.36 W·cm−2 at 750 ℃ . The electrolysis current density of SOC can reach −0.68 A·cm−2 at 1.30 V in solid oxide electrolysis cell (SOEC) model. [Conclusions] The performances of the aqueous-based SOCs can be considered highly remarkable, thus supporting the success in scaling the fabrication of SOCs using more environ-mentally friendly processes than conventional ones. © 2022 Science Press. All rights reserved.

引用

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