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水浴法制備鈀納米顆粒及其修飾電極的電催化性能
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國家自然科學基金(20871089，21271136)；安徽省教育廳自然科學研究重大項目(KJ2010ZD09)、重點項目(KJ2013A247)；宿州學院創(chuàng)新團隊建設計劃（2013kytd02）


Preparation of Palladium Nanoparticles by Water Bath Method and Electrocatalytic Properties of Its Modified Electrode
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    摘要:

    利用Keggin結構的12-硅鎢酸作為模板，采用水浴法還原硝酸鈀制備了納米鈀。用透射電子顯微鏡(TEM)和X射線衍射(XRD)等手段對制備的鈀納米顆粒的形貌、粒徑大小和結構進行了表征。利用滴涂法將Pd納米顆粒修飾到Au電極表面，通過循環(huán)伏安法，研究了納米Pd對肼的電催化性質。結果顯示，制備的納米鈀為3~4 nm的類球形顆粒，為面心立方結構。納米Pd修飾電極對肼具有良好的電催化氧化作用。在pH=6時，氧化峰電流（Ipa）與肼的濃度呈現(xiàn)良好的線性關系

    Abstract:

    Palladium nanoparticles were synthesized by the reduction of palladium nitrate through a water bath method in the presence of 12- tungstosilicate with Keggin structure. The morphology, particle size and structure of the palladium nanoparticles were characterized by transmission electron microscopy (TEM) and X-ray diffraction analysis (XRD). In addition, the palladium nanoparticles were used to modify Au electrode. Electrocatalytic properties of nano Pd in hydrazine were studied through the cyclic voltammetry. The result shows that the spherical palladium nanoparticles with the grain diameter about 3~4 nm are obtained. The electron diffraction pattern indicates that the palladium nanoparticles are face-centered cubic polycrystalline. The Pd nanoparticles modified electrodes display excellent electrocatalytic performance for the hydrazine electrooxidation. The oxidation peak current (Ipa) increases almost linearly with the increasing of concentration of the hydrazine at pH=6

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張 莉,王 聰,袁 建,陳仁喜.水浴法制備鈀納米顆粒及其修飾電極的電催化性能[J].稀有金屬材料與工程,2013,42(9):1936~1940.[Zhang Li, Wang Cong, Yuan Jian, Chen Renxi. Preparation of Palladium Nanoparticles by Water Bath Method and Electrocatalytic Properties of Its Modified Electrode[J]. Rare Metal Materials and Engineering,2013,42(9):1936~1940.]
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  • 收稿日期:2012-09-29
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