Nanoporous silver using pulsed laser deposition for high-performance oxygen reduction reaction and hydrogen peroxide sensing

Silver (Ag)-based materials have shown great application potential in the oxygen reduction reaction (ORR) and hydrogen peroxide (H 2 O 2 ) detection. The porous structures of Ag have attracted a lot of research interest due to their large specific surface area and high electrochemical activity. In t...

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Bibliographic Details
Published in:Nanoscale 2020-10, Vol.12 (37), p.19413-19419
Main Authors: Zhao, Xuanliang, Deng, Zhongyang, Zhao, Wei, Feng, Bin, Wang, Min, Huang, Meirong, Liu, Lei, Zou, Guisheng, Shao, Yang, Zhu, Hongwei
Format: Article
Language:English
Subjects:
Gas pressure
Hydrogen peroxide
Oxygen reduction reactions
Pulsed laser deposition
Pulsed lasers
Selectivity
Silver
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Summary:Silver (Ag)-based materials have shown great application potential in the oxygen reduction reaction (ORR) and hydrogen peroxide (H 2 O 2 ) detection. The porous structures of Ag have attracted a lot of research interest due to their large specific surface area and high electrochemical activity. In this work, nanoporous Ag structures composed of nano-sized particles were prepared by a one-step pulsed laser deposition (PLD) under controlled background gas pressure. The porous PLD-Ag showed a high ORR performance ( E onset : 1.007 V vs . RHE, E 1/2 : 0.863 V vs . RHE), high sensitivity (613.1 μA cm −2 mM −1 at −0.2 V vs . SCE) and selectivity for H 2 O 2 detection. The PLD technique provided a new, yet universal approach to producing high-performance, metal-based electrochemical electrodes. Nanoporous silver with good electrochemical activity is prepared using pulsed laser deposition and is used for high-performance oxygen reduction reaction and hydrogen peroxide sensing.
ISSN:2040-3364
2040-3372
DOI:10.1039/d0nr05395c