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首页> 外文期刊>Advanced Sustainable Systems >Electrocatalytic Production of Hydrogen Peroxide with Poly(3,4-ethylenedioxythiophene) Electrodes
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Electrocatalytic Production of Hydrogen Peroxide with Poly(3,4-ethylenedioxythiophene) Electrodes

机译：Electrocatalytic过氧化氢的生产保利(材料间是的运动)电极

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摘要

Electrocatalysis for energy-efficient chemical transformations is a central concept behind sustainable technologies. Numerous efforts focus on synthesizing hydrogen peroxide, a major industrial chemical and potential fuel, using simple and green methods. Electrochemical synthesis of peroxide is a promising route. Herein it is demonstrated that the conducting polymer poly(3,4-ethylenedioxythiophene), PEDOT, is an efficient and selective heterogeneous catalyst for the direct reduction of oxygen to hydrogen peroxide. While many metallic catalysts are known to generate peroxide, they subsequently catalyze decomposition of peroxide to water. PEDOT electrodes can support continuous generation of high concentrations of peroxide with Faraday efficiency remaining close to 100%. The mechanisms of PEDOT-catalyzed reduction of O2 to H2O2 using in situ spectroscopic techniques and theoretical calculations, which both corroborate the existence of a chem-isorbed reactive intermediate on the polymer chains that kinetically favors the selective reduction reaction to H2O2, are explored. These results offer a viable method for peroxide electrosynthesis and open new possibilities for intrinsic catalytic properties of conducting polymers.
机译：电催化作用对节能的化学转换背后的是一个核心概念可持续技术。在合成过氧化氢,专业工业化学品和潜在的燃料,使用简单的和绿色的方法。合成过氧化氢是一种很有前途的路线。这证明了进行聚合物聚(材料间是的运动),PEDOT,是一种有效和选择性异构氧气的直接还原的催化剂过氧化氢。生成过氧化物,随后他们吗催化分解过氧化氢的水。PEDOT电极可以支持连续的代的高浓度的过氧化剩下的法拉第效率接近100%。PEDOT-catalyzed减少氧气的机制过氧化氢使用原位光谱技术和理论计算,这两个证实chem-isorbed的存在活性中间的聚合物链活动倾向于选择性降低对过氧化氢的反应,探索。为过氧化提供一个可行的方法电合成并打开新的可能性内在的催化性质进行聚合物。

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