水膠組合物的用途

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

103118233

專利證號

I 614005

專利獲證名稱

水膠組合物的用途

專利所屬機關 (申請機關)

國立臺北科技大學

獲證日期

2018/02/11

技術說明

本研究為利用大氣電漿熔射噴塗技術製備具多孔結構之Ni/CeO2陽極薄膜，研究中針對添加碳酸鈉與碳黑兩種不同造孔劑的陽極起始粉末，經由大氣電漿熔射噴塗後得到不同陽極塗層之強度、內部結構及孔洞分佈，藉此了解添加不同造孔劑的複合粉末對電漿熔射Ni/CeO2陽極性質之影響。由實驗結果顯示，使用噴霧造粒法製備之起始粉末中，添加碳酸鈉作為造孔劑的粉末其結構會比添加碳黑為造孔劑的粉末結構來得鬆散，而此結構較鬆散的粉末經電漿熔射噴塗後會得到較高孔隙率的陽極塗層。在塗層孔隙率方面，經氫氣氣氛還原後，其塗層孔隙率可至36.9%。另外，塗層與基材結合強度方面，氫氣還原後的塗層強度仍可維持23.99 MPa。由以上結果總結，添加碳酸鈉為造孔劑比添加碳黑為造孔劑的粉末所製備的陽極塗層性質較佳，且不論是陽極孔隙率或是塗層強度均符合作為SOFC陽極的標準。 The purpose of this study was to manufacture a porous Ni/CeO2 anode of intermediate temperature SOFC. By introducing the pore former into the feedstocks, the porous structure of the Ni/CeO2 anode was obtained by plasma spraying method. In this study, the feedstock of the NiO/CeO2/Na2CO3 powder made by the spray granulation is spherical; the powder structure is compact and a hollow hole inside the powder, hence more porosity (29.1%) of the as-sprayed coating was found and the pore distribution is more uniform. The remainder oxygen vacancies are existed in the reduced anode coating. Use of undoped ceria as an anode material appears to be feasible. The NiO/CeO2/Na2CO3 powder formed the higher bonding strength coating with 33.6 MPa. The electron conductivity was obtained with around 200 S/cm in 700 ◦C

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