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来源: 编辑: 人气:915 时间:2014-06-20

  凯茵化工讯 韩国科学技术研究院发布消息称,其研究团队好近开发出可用于固体碱膜燃料电池的高性能铑基础纳米催化剂,利用铑合金代替高价的铂,成功提升了燃料电池的性能。该成果在线发表在《美国化学会》(ACS Catalysis)杂志上。

  一般来说,在碱性燃料电池能源中发挥核心作用的纳米催化剂,常用于电化学活性较好的铂和钯基础纳米粒子合金,但材料本身的稳定性存在局限性。燃料电池材料长时间暴露在氧化环境中,会脱模剂导致材料稳定性和耐用性差的问题,从而降低铂和钯合金材料的性能。

  韩国研究组对材质稳定性好但性能较低的铑进行了燃料电池催化剂研究,结果显示,铑合金纳米粒子对燃料电池的电能化学氧还原反应具有较好的特性。研究组表示,该成果不仅可以提升燃料电池催化剂性能,也可以提升燃料电池的性能。

South Korea has developed a rhodium alloy catalyst to enhance fuel cell performance

KAYNE Chemical Korea Institute of Science and Technology released news that its research team recently developed a solid base membrane fuel cell can be used for high-performance rhodium based nano-catalyst, the use of rhodium alloy instead of expensive platinum, the successful promotion of the fuel cell Performance. The results were published online in the journal ACS Catalysis.

In general, nanocatalysts that play a central role in the energy of alkaline fuel cells are commonly used in platinum and palladium based nanoparticle alloys with good electrochemical activity, but the stability of the material itself is limited. Prolonged exposure of fuel cell materials to oxidizing atmospheres can lead to problems with poor material stability and durability, thereby reducing the performance of platinum and palladium alloy materials.

The South Korean research group conducted a study on fuel cell catalysts for rhodium with good material stability and low performance. The results show that the rhodium alloy nanoparticles have good characteristics for the chemical oxygen reduction reaction of fuel cells. The research group said the results not only improve fuel cell catalyst performance, but also improve fuel cell performance.

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【版权声明】秉承互联网开放、包容的精神,凯茵化工欢迎各方(自)媒体、机构转载、引用我们原创内容,但要注明来源凯茵化工;同时,我们倡导尊重与保护知识产权,如发现本站文章存在版权问题,请将版权疑问、授权证明、版权证明、联系方式等,发邮件至 app@shkingchem.com,我们将第一时间核实、处理,感谢您的配合。

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