Bimetallic coatings synergistically enhance the speeds of photocatalytic TiO2 micromotors

被引：28

作者：

Xiao, Zuyao ^{[1
]}

Chen, Jingyuan ^{[1
]}

Duan, Shifang ^{[1
]}

Lv, Xianglong ^{[1
]}

Wang, Jizhuang ^{[2
]}

Ma, Xing ^{[1
,3
]}

Tang, Jinyao ^{[2
,4
]}

Wang, Wei ^{[1
]}

机构：

[1] Harbin Inst Technol Shenzhen, Sch Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China

[2] Univ Hong Kong, Dept Chem, Hong Kong 999077, Peoples R China

[3] Harbin Inst Technol Shenzhen, Flexible Printed Elect Technol Ctr, Shenzhen 518055, Guangdong, Peoples R China

[4] Univ Hong Kong, State Key Lab Synthet Chem, Hong Kong 999077, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2020年 / 56卷 / 34期

基金：

中国国家自然科学基金;

关键词：

CATALYTIC NANOMOTORS; REDUCTION; MOTION;

D O I：

10.1039/d0cc00212g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The design of powerful, more biocompatible microrobots calls for faster catalytic reactions. Here we demonstrate a two-fold increase in the speed of photocatalytic TiO2-metal Janus micromotors via a Au/Ag bi-layered coating. Electrochemical measurements show that such a bimetallic coating is a better photocatalyst than either metal alone. Similarly, an additional sputtered Ag layer could also significantly increase the speed of Pt-PS or TiO2-Pt micromotors, suggesting that applying bimetallic coatings is a generalizable strategy in the design of faster catalytic micromotors.

引用

页码：4728 / 4731

页数：4

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