Plasmonic Photoelectrocatalysis in Copper-Platinum Core-Shell Nanoparticle Lattices

被引：59
作者：
Deng, Shikai [1 ]
Zhang, Bowei [1 ]
Choo, Priscilla [1 ]
Smeets, Paul J. M. [2 ,3 ]
Odom, Teri W. [1 ,3 ]
机构：
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[2] Northwestern Univ, NUANCE Ctr, Evanston, IL 60208 USA
[3] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA
来源：
NANO LETTERS | 2021年 / 21卷 / 03期
关键词：
Surface lattice resonance; lattice plasmon; hydrogen evolution reaction; water splitting; solar energy conversion; index mismatch; bimetallic core-shell nanoparticle;
D O I：
10.1021/acs.nanolett.0c05029
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This paper reports that strongly coupled bimetallic core-shell nanoparticle arrays show photoelectrocatalytic activity for hydrogen evolution reactions (HER). We fabricated large-area Cu-Pt nanoparticle lattices by combining top-down lithography and solution-based chemistry. These coupled lattices support two different types of plasmon modes, localized surface plasmons from individual particles and surface lattice resonances (SLRs) from the 2D lattice, that increased HER catalytic activity under white-light illumination up to 60%. Comparing photoelectrocatalytic performances of the two plasmon modes at different wavelength ranges, we found that SLRs had two-fold activity enhancement over that from localized surface plasmons.
引用
收藏
页码：1523 / 1529
页数：7
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