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首页> 外文期刊>International Journal of Electrochemical Science >The Influence of Potential Sweep Cycle Number on the Electrocatalytic Activity of the Boiled PdO/Graphene for Ethanol Oxidation Reaction (EOR)
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The Influence of Potential Sweep Cycle Number on the Electrocatalytic Activity of the Boiled PdO/Graphene for Ethanol Oxidation Reaction (EOR)

机译：潜在扫频次数对煮沸的PdO /石墨烯对乙醇氧化反应（EOR）的电催化活性的影响

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o A suspension solution consisting of PdO and graphene was boiled at 200 C for 2 h, and the filteredand dried samples were denoted as materials of PdO/G. Subsequently, the obtained samples wereimmobilized on a glassy carbon (GC) electrode, producing a PdO/G modified GC electrode. Lastly, the-1 prepared electrodes were swept by a potentiostatic method at the scan rate of 10 mV s in a solutionhaving PdCl2 and Na2SO4 for various cycles (0, 20, 50 and 80 cycles), yielding four kinds of PdO/Gelectrodes, being denoted as potential sweep cycle (PSC)-treated PdO/G electrodes. The morphologiesof the scraped samples were mainly characterized by using Transmission electron microscopy (TEM).And the electrocatalytic abilities of the PSC-treated catalysts towards ethanol oxidation reaction (EOR)were basically examined by using cyclic voltammetry (CV) and chronoamperometry (CA). Theelectrochemical consequences indicated that the catalyst of PdO/G treated by 50 cycles (catalyst c)delivered the best electrocatalytic activity among all as-prepared catalysts. The smaller particle sizeand higher percentage of Pd were regarded as the main reasons for the excellent electrocatalyticactivity of catalyst c towards EOR as compared to other catalysts. Showing the fact that the potentialsweep cycle could be employed as a method to enhance the electrocatalytic activity of PdO/Gmaterials was the main contribution of this short communication.
机译：o将由PdO和石墨烯组成的悬浮液在200°C下煮沸2小时，过滤并干燥的样品称为PdO / G材料。随后，将获得的样品固定在玻璃碳（GC）电极上，生产出PdO / G改性的GC电极。最后，用恒电位法在具有PdCl2和Na2SO4的溶液中以10 mV s的扫描速率将制备的-1电极扫过各种循环（0、20、50和80个循环），得到四种PdO / G电极，表示为电位扫描周期（PSC）处理的PdO / G电极。刮擦样品的形貌主要通过透射电镜（TEM）表征，并通过循环伏安法（CV）和计时安培法（CA）基本检测了PSC处理的催化剂对乙醇氧化反应（EOR）的电催化能力。电化学结果表明，在所有制备的催化剂中，经过50次循环处理的PdO / G催化剂（催化剂c）具有最佳的电催化活性。与其他催化剂相比，较小的粒径和较高的Pd百分比被认为是催化剂c对EOR具有优异电催化活性的主要原因。表明电位扫描周期可以用作增强PdO / G材料的电催化活性的方法这一事实是这种简短交流的主要贡献。

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