期刊
NATURE MATERIALS
卷 19, 期 5, 页码 559-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41563-019-0591-1
关键词
-
类别
资金
- King Abdullah University of Science and Technology Office of Sponsored Research (OSR) [OSR-2018-CARF/CCF-3079, OSR-2015-CRG4-2572]
- nSoft consortium
- EPSRC [1822223] Funding Source: UKRI
Photocatalysts formed from a single organic semiconductor can suffer from inefficient charge generation leading to low photocatalytic activities. Incorporating a heterojunction between a donor polymer and non-fullerene acceptor in organic nanoparticles leads to enhanced photocatalytic hydrogen evolution. Photocatalysts formed from a single organic semiconductor typically suffer from inefficient intrinsic charge generation, which leads to low photocatalytic activities. We demonstrate that incorporating a heterojunction between a donor polymer (PTB7-Th) and non-fullerene acceptor (EH-IDTBR) in organic nanoparticles (NPs) can result in hydrogen evolution photocatalysts with greatly enhanced photocatalytic activity. Control of the nanomorphology of these NPs was achieved by varying the stabilizing surfactant employed during NP fabrication, converting it from a core-shell structure to an intermixed donor/acceptor blend and increasing H-2 evolution by an order of magnitude. The resulting photocatalysts display an unprecedentedly high H-2 evolution rate of over 60,000 mu mol h(-1) g(-1) under 350 to 800 nm illumination, and external quantum efficiencies over 6% in the region of maximum solar photon flux.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据