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| 題 名 | 微電鍍法製備銅鋅合金微柱用於二氧化碳還原反應=Micro-Anode Guided Electroplating for the Preparation of Copper-Zinc Alloy Micropillars Applied to Carbon Dioxide Reduction |
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| 作 者 | 孫秉蔚; 王俊堯; 曾耀田; 林景崎; | 書刊名 | 防蝕工程 |
| 卷 期 | 37:4 2023.12[民112.12] |
| 頁 次 | 頁1-9 |
| 分類號 | 468.32 |
| 關鍵詞 | 微陽極導引電鍍法; 銅鋅合金; 電化學活性表面積; 二氧化碳還原反應; Micro-anode guided electroplating; MAGE; CuZn alloy; Electrochemical active surface area; ECSA; Carbon dioxide reduction reaction; CO₂RR; |
| 語 文 | 中文(Chinese) |
| DOI | 10.6376/JCCE.202312_37(4).0001 |
| 中文摘要 | 本論文在利用微陽極導引電鍍法(Micro-Anode Guided Electroplating, MAGE)製備銅鋅合金微柱,及 其在 0.1 M KHCO3 中進行二氧化碳還原反應(CO2 Electrochemical Reduction Reaction, CO2RR)之產物探 討。本研究使用白金絲作為微陽極,將析鍍偏壓設定為 4.6 V,並將析鍍間距控制在 40 μm。鍍浴中固定 磷酸二氫鉀在 0.2 M、焦磷酸鉀在 0.9 M 及五水合硫酸銅在 0.05 M,藉由改變七水合硫酸鋅濃度(M)在 0.15、0.16、0.17 及 0.18,鍍浴之代號分別為 CZ15、CZ16、CZ17 和 CZ18 進行析鍍。析鍍所得合金微 柱進行能量散射光譜(Energy Dispersive Spectrometer, EDS)和 X 光繞射分析(X-ray Diffraction, XRD)分析 確認其組成和結構。本製程所得微柱之優點具三維結構,可增大催化活性面積。隨後,利用氣相層析儀 分析其還原產物,探討微柱中鋅和銅在二氧化碳還原的反應機制。利用循環伏安法在 0.1 M KHCO3 下, 分析計算其電化學活性表面積(Electrochemical Active Surface Area, ECSA)可評估其電化學催化性能,結 果顯示 CZ16 微柱(組成為 Cu68Zn32)具有最大之電化學活性表面積(ECSA)為 778.3 cm2。 |
| 英文摘要 | This study focuses on the preparation of copper-zinc alloy microcolumns using Micro-Anode Guided Electroplating (MAGE). It investigates their products in the electrochemical reduction reaction of carbon dioxide (CO2RR) in 0.1 M KHCO3 electrolyte. A platinum wire is employed as the micro-anode with a deposition biasset of 4.6 V, and the spacing between the electrodes is maintained at 40 μm. The plating bath consists of fixed concentrations of 0.2 M potassium dihydrogen phosphate, 0.9 M potassium pyrophosphate, and 0.05 M copper (II) sulfate pentahydrate. By varying the concentration of heptahydrate zinc sulfate (M) to 0.15, 0.16, 0.17, and 0.18, the plating baths are denoted as CZ15, CZ16, CZ17, and CZ18, respectively. The obtained alloy microcolumns conduct Energy Dispersive Spectrometer (EDS) and X-ray Diffraction (XRD) analyses to verify their composition and structure. The produced microcolumns provide benefits due to their three-dimensional structure, which increases the catalytic active surface area. Gas chromatography analysis is performed to examine the reduction products and investigate the reaction mechanism of zinc and copper in CO2 reduction. Electrochemical Active Surface Area (ECSA) is calculated using cyclic voltammetry in 0.1 M KHCO3 to evaluate the electrochemical catalytic performance. The results reveal that CZ16 micro columns (comprising Cu68Zn32) exhibit the maximum ECSA of 778.3 cm2. |
本系統中英文摘要資訊取自各篇刊載內容。