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首页> 外文期刊>Applied Surface Science >Synthesis of carbon supported palladium nanoparticles catalyst using a facile homogeneous precipitation-reduction reaction method for formic acid electrooxidation
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Synthesis of carbon supported palladium nanoparticles catalyst using a facile homogeneous precipitation-reduction reaction method for formic acid electrooxidation

机译：简便的均相沉淀还原反应法甲酸电氧化合成碳载钯纳米粒子催化剂

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摘要

A highly dispersed and ultrafine carbon supported Pd nanoparticles (Pd/C) catalyst is synthesized by a facile homogeneous precipitation-reduction reaction method. Under the appropriate pH conditions, [PdCU]2" species in PdCb solution are slowly transformed into the insoluble palladium oxide hydrate (PdOH2O) precipitation by heat treatment due to a slow hydrolysis reaction, which results in the generation of carbon supported PdOH2O nanoparticles (PdOH2O/C) sample with the high dispersion and small particle size. Consequently, a highly dispersed and ultrafine Pd/C catalyst can be synthesized by PdOH2O->- Pd° in situ reduction reaction path in the presence of NaBH4. As a result, the resulting Pd/C catalyst possesses a significantly electrocatalytic performance for formic acid electrooxidation, which is attributed to the uniformly sized and highly dispersed nanostructure.
机译：通过简便的均相沉淀-还原反应方法合成了高度分散的超细碳载Pd纳米颗粒（Pd / C）催化剂。在适当的pH条件下，由于缓慢的水解反应，通过热处理将PdCb溶液中的[PdCU] 2“物种缓慢转化为不溶性氧化钯水合物（PdOH2O）沉淀，这导致生成了碳载PdOH2O纳米颗粒（PdOH2O / C）样品具有高分散性和小粒径，因此，在NaBH4存在下，可以通过PdOH2O→Pd°原位还原反应路径合成高度分散的超细Pd / C催化剂。所得的Pd / C催化剂具有明显的甲酸电氧化电催化性能，这归因于尺寸均匀且高度分散的纳米结构。

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  • 来源
    《Applied Surface Science》 |2011年第24期|p.10483-10488|共6页
  • 作者

    Juan Ma; Yigangji; Hanjun Sun; Yu Chen; Yawen Tang; Tianhong Lu; Junwei Zheng;

  • 作者单位

    Kunshan Drug Supervision and Inspection Institute, Kunshan 215300, PR China;

    Department oj Chemistry, Jiangsu Institute ojEducation, Nanjing 210013, PR China;

    Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, 1# Wenyuan Road, Nanjing 210046, PR China;

    Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, 1# Wenyuan Road, Nanjing 210046, PR China;

    Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, 1# Wenyuan Road, Nanjing 210046, PR China;

    Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, 1# Wenyuan Road, Nanjing 210046, PR China;

    Institute of Chemical Power Sources, Soochow (Suzhou) University, Suzhou 215006, PR China;

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  • 关键词

    direct formic acid fuel cell homogeneous precipitation palladium catalyst formic acid electrooxidation electrocatalytic activity;

    机译：直接甲酸燃料电池均相沉淀钯催化剂甲酸电氧化电催化活性。;

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