本研究主要目的在於探討不同比例之奈米級銅鈰觸媒，並添加不同含量的鋅對富氫下水煤氣轉移反應以及一氧化碳氧化反應的影響。觸媒以sol-gel法製備，其中選用PAA、citric acid與urea為凝膠溶劑，並與共沈澱法作比較。鍛燒溫度以500℃、600℃與700℃做比較。在觸媒特性的研究上，則採用BET、TPR、XRD、TEM等儀器來進行分析。
由BET分析得知，添加鋅可增加觸媒總表面積，以銅鋅比例3/12最佳。TPR結果顯示，添加鋅時，銅的還原波峰有向高溫偏移的現象。sol-gel法製備觸媒中，以PAA所製備的觸媒分散性銅較多，使用citric acid所製備的觸媒其次，另外以urea與共沈澱法所製備的觸媒，還原溫度較其他兩種高出20-35℃。TEM結果得知以sol-gel製備法所製備的觸媒皆為奈米級觸媒。
富氫下水煤氣轉移反應活性之實驗結果顯示，sol-gel法製備的奈米級銅鈰系列觸媒活性皆高於共沈澱法所製備的觸媒，其中使用PAA凝膠溶劑製備的觸媒最好，urea最差。在銅鈰比例及添加鋅方面，銅鈰比例3/10的觸媒活性表現最佳，而添加鋅顯示觸媒的活性有明顯的提高，其中以銅鋅鈰比例3/12/10的觸媒活性最好。鍛燒溫度方面，顯示sol-gel法製備的觸媒在較低溫鍛燒對觸媒的活性較有利。在富氫選擇性一氧化碳氧化反應方面，以銅鈰比例3/10的觸媒表現較佳的活性。而添加鋅的研究中，顯示添加鋅並無助於提升銅鈰觸媒的活性，但有利於選擇率的提升。

The major purpose of this study is to investigate the effect of differential ratio of nano copper/cerium catalysts and added differential Zn loading for water gas shift reaction and CO oxidation under rich hydrogen. The catalysts were prepared by sol-gel method, choosed PAA, citric acid and urea as gelatinous reagent and compared with co-precipitation. The calcination temperature was 500℃ and compared with 600℃ and 700℃. Catalysts property were analyzed by Nitrogen physical adsorpyion(BET), X-ray diffraction(XRD), Temperature program reduction(TPR) and Transmission electron microscope(TEM).
According to BET, adding zinc increase the total suface of catalysts, especially the copper/zinc ratio 3/12 is best. Results of TPR indicate that adding zinc make the copper reduction peak shift to high temperature. In the sol-gel method, the dispersed copper present most in PAA method, and that in the citric acid method is secondary. Reduction peak Of the catalysts prepared by urea and co-precipitation is higher than the other two methods. The results of TEM show that the catalysts prepared by sol-gel method are nanometer.
For Water gas shift reaction under rich hydrogen, the active of Nano-Sized copper/zinc series catalysts prepared by sol-gel method is higher than co-precipitation. Among sol-gel method, the catalysts prepared by PAA gelatinous reagent are best, and urea are worst. For copper/cerium ratio and adding zinc, the active of copper/cerium ratio 3/10 is best, and adding zinc increases the active apparently, especially copper/zinc/cerium ratio 3/12/10. For calcination temperature, the catalysts prepared by sol-gel method show more active under lower temperature. For selective CO oxidation under rich hydrogen, the active of copper/cerium ratio 3/10 is better. Adding zinc investigation indicate that it is helpless for increasing active of copper/cerium catalysts, but it does help for increasing selectivity.

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