Organic Photovoltaic Catalyst with σ‐π Anchor for High‐Performance Solar Hydrogen Evolution

Efficient in situ deposition of metallic cocatalyst, like zero‐valent platinum (Pt), on organic photovoltaic catalysts (OPCs) is the prerequisite for their high catalytic activities. Here we develop the OPC (Y6CO), by introducing carbonyl in the core, which is available to σ‐π coordinate with transi...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie 2023-03, Vol.135 (12), p.n/a
Main Authors: Liang, Yuanxin, Li, Tengfei, Lee, Yuhsuan, Zhang, Zhenzhen, Li, Yawen, Si, Wenqin, Liu, Zesheng, Zhang, Chuang, Qiao, Yan, Bai, Shuming, Lin, Yuze
Format: Article
Language:English
Subjects:
Carbonyl compounds
Carbonyls
Catalysts
Chemistry
Deposition
Heavy metals
Heterojunctions
Hydrogen evolution
In Situ Photodeposition
Nanoparticles
Photocatalytic Hydrogen Evolution
Photovoltaic Catalyst
Photovoltaics
Platinum
Solar Hydrogen
Transition metals
σ-π Coordination
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Efficient in situ deposition of metallic cocatalyst, like zero‐valent platinum (Pt), on organic photovoltaic catalysts (OPCs) is the prerequisite for their high catalytic activities. Here we develop the OPC (Y6CO), by introducing carbonyl in the core, which is available to σ‐π coordinate with transition metals, due to the high‐energy empty π* orbital of carbonyl. Y6CO exhibits a stronger capability to anchor Pt species and reduce them to metallic state, resulting in more Pt0 deposition, relative to the control OPC without the central σ‐π anchor. Single‐component and heterojunction nanoparticles (NPs) employing Y6CO show enhanced average hydrogen evolution rates of 230.98 and 323.22 mmol h−1 g[OPC]−1, respectively, under AM 1.5G, 100 mW cm−2 for 10 h, and heterojunction NPs yield the external quantum efficiencies of ca. 10 % in 500–800 nm. This work demonstrates that σ‐π anchoring is one efficient strategy for integrating metallic cocatalyst and OPC for high‐performance photocatalysis. An organic photovoltaic catalyst (Y6CO) with a central steric‐hindrance‐free carbonyl group, achieves efficient Pt0 in situ deposition through σ‐π anchoring, leading to significantly enhanced utilization of the Pt cocatalyst and photocatalytic hydrogen evolution of Y6CO/Pt based nanoparticles under simulated solar light illumination.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.202217989