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A Two‐dimensional Amorphous Plasmonic Heterostructure of Pd/MoO 3‐x for Enhanced Photoelectrochemical Water Splitting Performance
Author(s) -
Liu Wei,
Tian Qingyong,
Yang Jian,
Zhou Yannan,
Chang Hongwei,
Cui Wenhui,
Xu Qun
Publication year - 2021
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202100239
Subject(s) - heterojunction , amorphous solid , materials science , water splitting , optoelectronics , plasmon , energy conversion efficiency , absorption (acoustics) , surface plasmon resonance , visible spectrum , nanotechnology , catalysis , nanoparticle , photocatalysis , chemistry , crystallography , biochemistry , composite material
Two‐dimensional (2D) heterostructures based on localized surface plasmon resonance (LSPR) have a great potential for solar energy harvesting applications. Exploring 2D amorphous plasmonic heterostructures with high light absorption and catalytic activity is desirable yet challenging. Herein, 2D Pd/MoO 3‐x amorphous heterostructures can be obtained by immobilizing Pd single atoms in unsaturated coordination sites of amorphous MoO 3‐x , because of strong metal‐support interactions, and it reaches a current density of 50 μA cm −2 for photoelectrochemical response with good durability, and exhibits a high incident‐photon‐to‐current‐conversion efficiency (IPCE) of 14.8% at 460 nm. Such an enhanced catalytic effects are contributed to the enhanced light absorption in visible region and change of electronic structure owing to enhanced electron transfer through dominant Pd−O bonds, which facilitate water splitting. This work moves a step closer to the expansion of photovoltaic device with the high conversion efficiency for visible light for amorphous heterostructures.