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首页> 外文期刊>Catalysis science & technology >Superfine palladium nanocrystals on a polyphenylene framework for photocatalysis
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Superfine palladium nanocrystals on a polyphenylene framework for photocatalysis

机译：超细钯纳米晶体上聚亚苯基框架,光催化

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摘要

The design of high-efficiency photocatalysts is a crucial step to convert light energy for chemical synthesis. In this study, a Pd/polyphenylene (PPh) photocatalyst was synthesized via a palladium catalyzed Suzuki coupling reaction and the in situ pyrolysis of a Pd precursor. A two-stage heating strategy was developed to successfully control the size distribution of loaded Pd nanocrystals. This Pd/PPh catalyst displayed excellent photocatalytic activity during a p-nitrophenol reduction evaluation test. The results indicated that the enhanced catalytic activity could be mainly attributed to synergetic promotion between the Pd nanocrystals and the PPh framework, as well as the high-efficiency light harvesting and energy transfer by the conjugate skeleton of PPh. This research opens up the exploration of conjugate polymers as photoactive carriers for the design of high-efficiency photocatalysts.
机译：高效催化剂的设计关键步骤为化学转化为光能合成。(PPh)合成了光催化剂通过钯催化反应和铃木耦合Pd的原位热解前驱。两级加热策略开发成功控制的粒度分布加载Pd纳米晶体。显示良好的光催化活性在p-nitrophenol减少评估测试。结果表明,增强的催化活动可以主要归因于协同作用的促销Pd纳米晶体和产后大出血框架,以及高效的光由共轭收获和能量转移产后大出血的骨架。探索共轭聚合物作为光敏航空公司设计的高效论文的。

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