本研究主要是在探討以過渡金屬鈷與亞硝基紅鹽(nitroso-R-salt, NRS)所形成之錯合物作為二氧化碳電催化觸媒之反應行為。期望藉二氧化碳的還原反應產生具有高價值之化合物，同時降低大氣中的二氧化碳濃度，達到降低溫室效應與全球暖化的影響。
以導電玻璃(FTO)與白金(Pt)和普魯士藍(Prussion blue, PB)修飾之導電玻璃(FTO│Pt│PB)兩種工作電極在氯化鉀溶液、硫酸鈉與檸檬酸鈉溶液、硫酸鈉與醋酸鈉溶液中，施加不同的電解電位搭配不同的酸鹼度，得到最佳的甲醇轉化法拉第效率，在pH3.5的0.1 M 氯化鉀以FTO工作電極於-0.1 V vs. RHE下電解6個小時為效果最優秀之條件，甲醇轉換法拉第效率可以達到72.56%。

In this study, the electrocatalytic reduction of carbon dioxide to methanol, which consists of two kinds of fiuorine-doped tin oxide coated glass electrodes (FTO) and transition metal nitroso-R complex (Co-NRS) was investigated. It is expected that the reduction reaction of carbon dioxide will produce high-value compounds while reducing the concentration of carbon dioxide in the atmosphere to reduce the greenhouse effect and global warming. The two kinds of electrodes include bare FTO and Platinum (Pt) and Prussion blue (PB) modified FTO (FTO │ Pt │ PB). Using three kinds of solutions include potassium chloride solution, sodium sulfate and sodium citrate solution, Sodium sulfate and sodium acetate solution as electrolytes. In order to, increased the efficiency of convertion of carbon dioxide to methanol, adjust the pH value of the solution and use different the potential. The 0.1 M potassium chloride at pH 3.5 is electrolyzed with FTO working electrode at -0.1 V vs. RHE four 6 hours is the best condition, and the methanol conversion Faraday efficiency can reach 72.56%.

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