教師資料查詢 | 類別: 會議論文 | 教師: 蘇鎮芳JENN-FANG SU (瀏覽個人網頁)

標題:Electrochemical Reduction of Nitrate over Bimetallic Catalysts in Aqueous Solutions: Effect of crystal structure and surface morphology
學年109
學期2
發表日期2021/06/14
作品名稱Electrochemical Reduction of Nitrate over Bimetallic Catalysts in Aqueous Solutions: Effect of crystal structure and surface morphology
作品名稱(其他語言)
著者Jenn Feng Su; Chin-Pao Huang
作品所屬單位
出版者
會議名稱12th European Symposium on Electrochemical Engineering
會議地點Leeuwarden, The Netherlands
摘要Nitrate is a micronutrient and a potential carcinogen. Its removal from drinking water is essential to safe guard the public and ecological health. Previous studies have demonstrated that nitrate reduction in acidic solution is fast and easy toward the formation of ammonium final product. However, nitrate reduction to environmentallybenign molecular nitrogen is necessary in order to control water quality in totality. This presentation will discuss our strategy on electrode preparation as to manipulate nitrate reactivity and nitrogen selectivity in electrochemical nitrate reduction. The preparation of tin-palladium electrodes was attempted using electrode deposition approach on stainless steel support. Different electrodeposition programs, such as charging processes and composition of metal solution affected the crystal structure and surface morphology of bimetallic electrodes, thereby impacted nitrate reduction capability. Based on XRD and analysis of reaction products, nitrate reduction over the synthesized Sn-Pd bimetallic electrodes was surface-structure sensitive; the fraction of (420) crystal facet of the Sn₃Pd alloy exhibited critical effect on the reactivity and selectivity of nitrate reduction. Of the most significance, electrode prepared with one batch of solution containing both SnCl₂ and PdCl₂ at molar ratio of 1 to 4 exhibited the best performance in nearly 100% nitrate conversion and 81% nitrogen yield.
關鍵字
語言英文
收錄於
會議性質國際
校內研討會地點
研討會時間20210614~20210617
通訊作者
國別荷蘭
公開徵稿
出版型式
出處
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