本研究第一部份利用高壓二氧化碳水溶液(Compressed CO2/water)為綠色溶劑進行苯甲醇及其衍生物之觸媒氫解反應(Hydrogenolysis)，透過高壓二氧化碳水溶液的酸性特質來提升催化反應效果。研究中利用鈀/活性碳(Pd/C)觸媒於水為溶劑下進行反應，實驗結果發現通入10 bar CO2與10 bar H2時，在溫度為50 oC下，對比於10 bar H2的反應，苯甲醇氫解反應轉化率可從70%增加至92%。研究中亦對比高壓二氧化碳水溶液和二氧化碳膨脹甲醇(CO2-expanded Methanol)對氫解反應的差異，其實驗結果顯示甲醇亦具有酸性的催化效果。當水溶液或甲醇中存在高壓二氧化碳時，碳酸或甲基碳酸所形成的酸性環境容易使得苯甲醇上的OH官能基被質子化形成+OH2，進一步提升離去基的強度，導致斷鍵的反應速率增加。此外，研究中也探討1級、2級和3級苯甲基醇類對斷鍵反應的影響，透過實驗結果可得知，利用此兩種溶劑系統於苯甲基醇類氫解反應時皆有不錯的提升效果。未來可望將此高壓二氧化碳水溶液與二氧化碳膨脹甲醇系統運用於生質燃料的精煉製程，降低工業製程上之有機溶劑使用，並縮短反應時間。第二部分為對苯二甲酸(Terephthalic Acid, TPA)於水中進行苯環氫化反應之探討，由於對苯二甲酸的溶解度低，且活性碳觸媒在水中分散性差，因此一般製程之反應性皆不高。本研究挑選中孔洞矽材SBA-15 作為載體，配合超臨界流體沉積法將雙金屬Rh及Pt沉積於SBA-15上作為反應用之觸媒。由於矽基材料能有效分散於水中，因此在對苯二甲酸不完全溶解之情況下亦可進行氫化反應，其轉化率於兩小時內可達90%以上。此外，研究中亦發現Rh-Pt/SBA-15具有雙金屬效益，其轉化率較單金屬Rh/SBA-15 (84 %)與Pt/SBA-15 (1%)各別存在時來得高。若未來能善加運用此雙金屬觸媒與水溶劑系統配搭，將可望解決工業上難溶物質之苯環氫化難題。

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