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首页> 外文期刊>Electrocatalysis >Design of Pd-Pb Catalysts for Glycerol and Ethylene Glycol Electrooxidation in Alkaline Medium
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Design of Pd-Pb Catalysts for Glycerol and Ethylene Glycol Electrooxidation in Alkaline Medium

机译：碱性介质中甘油和乙二醇电氧化PD-PB催化剂的设计

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摘要

Unsupported Pd~(x)Pb~(1-x)electrocatalysts were synthesized by a modified sacrificial support method (SSM) and thoroughly characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Their electrochemical activity was evaluated for the electrooxidation reactions of ethylene glycol (EGOR) and glycerol (GOR) in alkaline electrolytes, reaching an onset of ??510?mV vs. the normal hydrogen electrode (NHE) for the EGOR and the GOR vs. ??430?mV vs. NHE for the EGOR and the GOR on the Pd-black. Additional mechanistic insights were provided by DFT calculations, showing that the presence of Pb resulted in a stronger binding of the OH~(ads), therefore explaining the enhanced kinetics for the electrooxidation of C~(2)(ethylene glycol) and C~(3)(glycerol) alcohol in this environment. Graphical Abstract.
机译：不支持的PD〜（X）PB〜（1-X）通过修饰的牺牲载体方法（SSM）合成，并通过X射线衍射（XRD），扫描电子显微镜（SEM）和透射电子显微镜（TEM）彻底表征 ）。 在碱性电解质中评价其电化学活性的电化学活性，用于碱性电解质中的甘油（GOR），达到α0α的发作，对EGOR和GOR与GOR对比进行常见的氢电极（NHE）。 ?? 430？MV与Egor和PD-Black上的GOR上的NHE。 DFT计算提供了额外的机械洞察力，表明PB的存在导致OH〜（ADS）的较强结合，因此解释了C〜（2）（乙二醇）和C〜（ 3）（甘油）在这种环境中酒精。 图形概要。

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  • 来源
    《Electrocatalysis》 |2018年第4期|共6页
  • 作者

    Tristan Asset; Alexey Serov; Monica Padilla; Aaron J. Roy; Ivana Matanovic; Marian Chatenet; Frederic Maillard; Plamen Atanassov;

  • 作者单位

    Chemical and Nuclear Engineering Department UNM Center for Emerging Energy Technologies University of New Mexico;

    Chemical and Nuclear Engineering Department UNM Center for Emerging Energy Technologies University of New Mexico;

    Chemical and Nuclear Engineering Department UNM Center for Emerging Energy Technologies University of New Mexico;

    Chemical and Nuclear Engineering Department UNM Center for Emerging Energy Technologies University of New Mexico;

    Chemical and Nuclear Engineering Department UNM Center for Emerging Energy Technologies University of New Mexico;

    Univ. Grenoble Alpes CNRS Grenoble-INP Institute of Engineering Université Savoie-Mont-Blanc LEPMI;

    Univ. Grenoble Alpes CNRS Grenoble-INP Institute of Engineering Université Savoie-Mont-Blanc LEPMI;

    Chemical and Nuclear Engineering Department UNM Center for Emerging Energy Technologies University of New Mexico;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学动力学、催化作用;
  • 关键词

    Palladium; Lead; Glycerol; Ethylene glycol; Alkaline fuel cell;

    机译：钯;铅;甘油;乙二醇;碱性燃料电池;

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