Urea Combustion in situ Synthesis of NiO-YSZ Composite Powders for Solid Oxide Electrolysis Cells

作者：Zhang Wenqiang; Yu Bo^*; Chen Jing; Xu Jingming

来源：Rare Metal Materials and Engineering, 2013, 42: 720-723.

• high temperature electrolysis
• solid oxide electrolysis
• urea combustion in situ synthesis
• hydrogen electrode

A new in situ combustion method was developed to prepared NiO-YSZ composite powder. Through adjusting the molar ratio of urea to nickel nitrate, high performance NiO-YSZ composite powder was synthesized. The microstructure properties of the powdesr and corresponding cells were investigated. The optimal molar ratio of CO (NH2) (2): Ni (NO3) (2) is 2:1. The performance of SOEC sigle button cells with hydrogen electrode prepared by this method were investigated. The OCV of the cell is 0.836 V and the current density is 0.968 A/cm(2) in 1.5 V with 80%H2O + 20%H-2 at 900 degrees C.

• 出版日期2013-6
• 单位清华大学