文献类型：期刊文献

英文题名：Engineering Nanoparticulate Organic Photocatalysts via a Scalable Flash Nanoprecipitation Process for Efficient Hydrogen Production

作者：Yu, Miaojie[1];Zhang, Weiwei[1];Guo, Zhiqian[1];Wu, Yongzhen[1];Zhu, Weihong[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat,Joint Int Res Lab Precis Chem & M, Sch Chem & Mol Engn,Feringa Nobel Prize Scientist, Inst Fine Chem,Frontiers Sci Ctr Materiobiol & Dy, Shanghai 200237, Peoples R China

年份：2021

卷号：60

期号：28

起止页码：15590

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20212310456373);WOS:【SCI-EXPANDED(收录号:WOS:000657768900001)】；

基金：This work was financially supported by NSFC/China for Science Center Program (21788102), NSFC/China (21636002, 822504, 21905091), China Postdoctoral Science Foundation (No.2019M651418), Shanghai Municipal Science and Technology Major Project (2018SHZDZX03), Program of Introducing Talents of Discipline to Universities (B16017).

语种：英文

外文关键词：dispersion; flash nanoprecipitation; hydrogen evolution; hydrophilic polymers; organic photocatalysts

摘要：Directly converting sunlight into hydrogen fuels using particulate photocatalysts represents a sustainable route for clean energy supply. Organic semiconductors have emerged as attractive candidates but always suffer from optical and exciton recombination losses with large exciton "dead zone" inside the bulk material, severely limiting the catalytic performance. Herein, we demonstrate a facile strategy that combines a scalable flash nanoprecipitation (FNP) method with hydrophilic soluble polymers (PC-PEG5 and PS-PEG5) to prepare highly efficient nanosized photocatalysts without using surfactants. Significantly, a 70-fold enhancement of hydrogen evolution rate (HER) is achieved for nanosized PC-PEG5, and the FNP-processed PS-PEG5 shows a peak HER rate of up to 37.2 mmol h(-1) g(-1) under full-spectrum sunlight irradiation, which is among the highest results for polymer photocatalysts. A scaling-up production of nanocatalyst is demonstrated with the continuously operational FNP.