Concave Double-Walled AgAuPd Nanocubes for Surface-Enhanced Raman Spectroscopy Detection and Catalysis Applications

被引：25

作者：

Huang, Tzu-Chi ^{[1
]}

Tsai, Hsiao-Chieh ^{[2
]}

Chin, Yu-Cheng ^{[1
]}

Huang, Wei-Shan ^{[1
]}

Chiu, Yi-Chun ^{[3
,4
,5
,6
]}

Hsu, Tzu-Chun ^{[1
]}

Chia, Zi-Chun ^{[1
]}

Hung, Tzu-Chiao ^{[2
]}

Huang, Chih-Chia ^{[1
,7
,8
]}

Hsieh, Yi-Ting ^{[2
]}

机构：

[1] Natl Cheng Kung Univ, Dept Photon, Tainan 70101, Taiwan

[2] Soochow Univ, Dept Chem, Taipei 11102, Taiwan

[3] Taipei City Hosp, Dept Surg, Div Urol, Heping Fuyou Branch, Taipei 10065, Taiwan

[4] Natl Yang Ming Chiao Tung Univ, Coll Med, Dept Urol, Taipei 11221, Taiwan

[5] Natl Yang Ming Chiao Tung Univ, Shu Tien Urol Res Ctr, Taipei 11221, Taiwan

[6] Univ Taipei, Dept Exercise & Hlth Sci, Taipei 11153, Taiwan

[7] Natl Cheng Kung Univ, Ctr Appl Nanomed, Tainan 70101, Taiwan

[8] Natl Cheng Kung Univ, Ctr Micro Nano Sci & Technol, Tainan 70101, Taiwan

来源：

ACS APPLIED NANO MATERIALS | 2021年 / 4卷 / 10期

关键词：

concave double-shell; alloy nanoparticle; SERS; ternary elements; glycerol oxidation; GALVANIC REPLACEMENT; AG NANOCUBES; PD-AG; SILVER NANOCRYSTALS; OPTICAL-PROPERTIES; SERS; AU; HOLLOW; SHELL; NANOPARTICLES;

D O I：

10.1021/acsanm.1c01534

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Herein, we develop a series etching and atom codeposition process to fabricate concave double-shell AgAu (CD-AgAu) and CD-AgAu:Pd nanocubes. High surface area and edge activity from the CD nanostructure consisting of a single hole appear in the central area, and 12 concave structures exhibit superior surface-enhanced Raman scattering (SERS). As investigating the Pd dopants at the CD surface with SERS and electrochemistry, we demonstrate that the 2.8% Pd-doped CD-AgAu nanocubes perform impressive catalysis at <= 30 s of the hydrogenation reaction by lowering the activation energy. Furthermore, the CD-AgAu:4.6%Pd nanocubes act as a superior catalyst for glycerol electrooxidation and could retain their high-index facets after a long-term durability test. Our work will help to motivate future efforts for the deliberate incorporation of a low content of noble metals into CD nanostructures to develop chemical sensing devices in interfacial reactions and clean energy conversion technology.

引用

页码：10103 / 10115

页数：13

共 74 条

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