Superfine palladium nanocrystals on a polyphenylene framework for photocatalysis†,Catalysis Science & Technology

当前位置： X-MOL 学术 › Catal. Sci. Technol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Superfine palladium nanocrystals on a polyphenylene framework for photocatalysis†
Catalysis Science & Technology ( IF 4.4 ) Pub Date : 2018-09-04 00:00:00 , DOI: 10.1039/c8cy01513a
Yufan Gu _{1,

2,

3,

4,

5} , Junjian Li _{4,

6,

7,

8,

9} , Aming Xie _{1,

2,

3,

4} , Kun Zhang _{1,

2,

3,

4,

5} , Yingzhi Jiao _{2,

3,

4,

5} , Wei Dong _{2,

3,

4,

5}

Affiliation

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.

中文翻译：

聚亚苯基骨架上的超细钯纳米晶体用于光催化†

高效光催化剂的设计是将光能转化为化学合成的关键步骤。在这项研究中，通过钯催化的Suzuki偶联反应和Pd前体的原位热解合成了Pd /聚亚苯基（PPh）光催化剂。开发了两阶段加热策略以成功控制负载的Pd纳米晶体的尺寸分布。这种Pd / PPh催化剂在p期间显示出出色的光催化活性-硝基苯酚还原评价试验。结果表明，催化活性的提高主要归因于Pd纳米晶体与PPh骨架之间的协同促进作用，以及PPh共轭骨架的高效光捕获和能量转移。这项研究开启了共轭聚合物作为光敏载体用于高效光催化剂设计的探索。

更新日期：2018-09-04

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11