電漿熔射噴塗製備鎳銅合金/氧化鈰複合陽極之製程研究與性質探討

Investigations on processes and characteristics of plasma sprayed Ni-Cu/CeO2 anode

陳弘毅(Hung-Yi Chen)

指導教授 ： 楊永欽

國立臺北科技大學/工程學院/材料科學與工程研究所/碩士(2011年)

https://doi.org/10.6841/NTUT.2011.00448

摘要

本研究主要在傳統以鎳為基底的陽極中添加銅觸媒，並藉由大氣電漿噴塗製備具有催化特性的陽極塗層，研究中將配製鎳-銅/氧化鈰、氧化鎳-銅/氧化鈰、鎳-氧化銅/氧化鈰、氧化鎳-氧化銅/氧化鈰四種不同成分複合粉末，並改變此四種成份複合粉末的配比，配製Ni:Cu重量比為2:1、3:1、4:1三組配比參數，來探討在不同成份與配比下對於催化特性的影響。實驗中藉由過篩造粒並選取120~200 mesh之間的粉末做為電漿噴塗用複合粉末，噴塗後的陽極塗層可發現在高功率的噴塗參數下塗層較為平整，且經由X光繞射分析與電子微探儀定量分析下可得知，陽極塗層經由還原處理後塗層中的鎳與銅成份均已形成合金。在CH4-TPR反應方面，可發現氧化鎳-氧化銅/氧化鈰陽極塗層具有較好催化特性，推測因氧化鎳與氧化銅熔點較高並經由還原後所產生的孔洞較多，因此能提升三相界點使氧能順利擴散出來與碳反應而避免積碳發生。

關鍵字

固態氧化物燃料電池 ； 陽極 ； 電漿熔射噴塗 ； 催化

並列摘要

This study is in the nickel-base anode adding copper. Then use atmospheric plasma spray coating technology to create the catalytic properties anode. In the study are prepare of four different components of composite powder: Ni/Cu/CeO2、NiO/Cu/CeO2、Ni/CuO/CeO2 and NiO/CuO/CeO2 respectively. And in this four kinds of components to change the ratio to explore the different composition and ratio influence the catalytic properties. Granulation experiments by sifting and selecting 120~200 mesh as a plasma compound powder. As-spray the anode coating can be found in the high-power spray coating parameters are more flat. The anode coating by X-ray diffractometer and Electron Probe X-Ray Microanalyzer can be find that of Ni-Cu alloy has been formed by reduction treated. In the respect of CH4-TPR, can be found in NiO-CuO/CeO2 anode coating has good catalytic properties, presumably due to ceramics melting point higher than the metal and enhance coating porosity by reduction treated. Therefore avoid carbon deposition through increasing the reaction area of triple-phase boundary regio.

並列關鍵字

SOFC ； Anode ； Plasma spray ； Catalysis

參考文獻

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