当前位置：
X-MOL 学术
›
Adv. Mater.
›
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.)
A Highly Crystalline Perylene Imide Polymer with the Robust Built-In Electric Field for Efficient Photocatalytic Water Oxidation.
Advanced Materials ( IF 27.4 ) Pub Date : 2020-06-28 , DOI: 10.1002/adma.201907746 Zijian Zhang 1 , Xianjie Chen 1 , Hanjie Zhang 1 , Weixu Liu 1 , Wei Zhu 2 , Yongfa Zhu 1
Advanced Materials ( IF 27.4 ) Pub Date : 2020-06-28 , DOI: 10.1002/adma.201907746 Zijian Zhang 1 , Xianjie Chen 1 , Hanjie Zhang 1 , Weixu Liu 1 , Wei Zhu 2 , Yongfa Zhu 1
Affiliation
|
A highly crystalline perylene imide polymer (Urea‐PDI) photocatalyst is successfully constructed. The Urea‐PDI presents a wide spectrum response owing to its large conjugated system. The Urea‐PDI performs so far highest oxygen evolution rate (3223.9 µmol g−1 h−1) without cocatalysts under visible light. The performance is over 107.5 times higher than that of the conventional PDI supramolecular photocatalysts. The strong oxidizing ability comes from the deep valence band (+1.52 eV) which is contributed by the covalent‐bonded conjugated molecules. Besides, the high crystallinity and the large molecular dipoles of the Urea‐PDI contribute to a robust built‐in electric field promoting the separation and transportation of photogenerated carriers. Moreover, the Urea‐PDI is very stable and has no performance attenuation after 100 h continuous irradiation. The Urea‐PDI polymer photocatalyst provides with a new platform for the use of photocatalytic water oxidation, which is expected to contribute to clean energy production.
中文翻译：
具有强大内置电场的高效结晶Crystal酰亚胺聚合物，可高效进行光催化水氧化。
成功构建了高度结晶的per酰亚胺聚合物（Urea-PDI）光催化剂。由于其大的共轭体系，Urea‐PDI呈现出广谱响应。迄今为止，Urea-PDI的氧气释放速率最高（3223.9 µmol g -1 h -1），而不在可见光下使用助催化剂。性能是常规PDI超分子光催化剂的107.5倍以上。强大的氧化能力来自于共价键结合的共轭分子促成的深价带（+1.52 eV）。此外，Urea-PDI的高结晶度和大分子偶极子有助于形成强大的内置电场，从而促进光生载流子的分离和运输。而且，Urea-PDI非常稳定，连续照射100小时后性能不会降低。Urea-PDI聚合物光催化剂为使用光催化水氧化提供了一个新平台，有望为清洁能源生产做出贡献。
更新日期：2020-08-11
中文翻译：
具有强大内置电场的高效结晶Crystal酰亚胺聚合物，可高效进行光催化水氧化。
成功构建了高度结晶的per酰亚胺聚合物（Urea-PDI）光催化剂。由于其大的共轭体系，Urea‐PDI呈现出广谱响应。迄今为止，Urea-PDI的氧气释放速率最高（3223.9 µmol g -1 h -1），而不在可见光下使用助催化剂。性能是常规PDI超分子光催化剂的107.5倍以上。强大的氧化能力来自于共价键结合的共轭分子促成的深价带（+1.52 eV）。此外，Urea-PDI的高结晶度和大分子偶极子有助于形成强大的内置电场，从而促进光生载流子的分离和运输。而且，Urea-PDI非常稳定，连续照射100小时后性能不会降低。Urea-PDI聚合物光催化剂为使用光催化水氧化提供了一个新平台，有望为清洁能源生产做出贡献。
京公网安备 11010802027423号