Plasmon-enhanced electrocatalytic hydrogen/oxygen evolution by Pt/Fe-Au nanorods

被引：46
作者：
Guo, Xia [1 ,2 ]
Li, Xiaotong [2 ]
Kou, Shufang [2 ]
Yang, Xianfeng [3 ]
Hu, Xi [1 ]
Ling, Daishun [1 ]
Yang, Jian [2 ]
机构：
[1] Zhejiang Univ, Coll Pharmaceut Sci, Inst Pharmaceut, Hangzhou 310058, Zhejiang, Peoples R China
[2] Shandong Univ, Minist Educ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Jinan 250100, Shandong, Peoples R China
[3] South China Univ Technol, Analyt & Testing Ctr, Guangzhou 510640, Guangdong, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2018年 / 6卷 / 17期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
VISIBLE-LIGHT; SILVER NANOSTRUCTURES; SINGLE-PARTICLE; HOT-ELECTRON; RESONANCE; GOLD; NANOPARTICLES; OXYGEN; SOLAR; SHAPE;
D O I：
10.1039/c8ta00499d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Surface plasmon resonance-enhanced electrolysis has become attractive since it realizes the highly efficient conversion of electric energy with the help of solar energy. Herein, Pt/Fe was grown on gold (Au) nanorods by a simple wet-chemistry process, producing either dumbbell-like nanorods (Pt/Fe-Au) or core-shell nanorods (Au@Pt/Fe). Using hydrogen evolution reaction as a model, these nano-structures were examined as an electrocatalyst with/without light irradiation. As a result, dumbbell-like nanorods exhibited the best performance under light irradiation due to plasmon-induced enhancement. Then, CV curves, activation energy at zero potential, i-t responses to light irradiation and j-t evolution revealed that the plasmon-excited electron-transfer rather than the photothermal effect resulted in the electrocatalysis enhancement. This enhancement was also demonstrated for oxygen evolution reaction, suggesting its great potential in other electrocatalysis applications.
引用
收藏
页码：7364 / 7369
页数：6
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