Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41467-017-01085-3
Title: Engineering the internal surfaces of three-dimensional nanoporous catalysts by surfactant-modified dealloying
Authors: Wang, Z
Liu, P
Han, J
Cheng, C
Ning, S 
Hirata, A
Fujita, T
Chen, M
Keywords: gold
methanol
oxygen
surfactant
catalysis
catalyst
electrochemical method
methanol
nanoparticle
oxidation
surface structure
surfactant
three-dimensional modeling
Article
catalysis
catalyst
comparative study
controlled study
electrochemical analysis
oxidation
reduction (chemistry)
surface property
Issue Date: 2017
Publisher: Nature Publishing Group
Citation: Wang, Z, Liu, P, Han, J, Cheng, C, Ning, S, Hirata, A, Fujita, T, Chen, M (2017). Engineering the internal surfaces of three-dimensional nanoporous catalysts by surfactant-modified dealloying. Nature Communications 8 (1) : 1066. ScholarBank@NUS Repository. https://doi.org/10.1038/s41467-017-01085-3
Rights: Attribution 4.0 International
Abstract: Tuning surface structures by bottom-up synthesis has been demonstrated as an effective strategy to improve the catalytic performances of nanoparticle catalysts. Nevertheless, the surface modification of three-dimensional nanoporous metals, fabricated by a top-down dealloying approach, has not been achieved despite great efforts devoted to improving the catalytic performance of three-dimensional nanoporous catalysts. Here we report a surfactant-modified dealloying method to tailor the surface structure of nanoporous gold for amplified electrocatalysis toward methanol oxidation and oxygen reduction reactions. With the assistance of surfactants, {111} or {100} faceted internal surfaces of nanoporous gold can be realized in a controllable manner by optimizing dealloying conditions. The surface modified nanoporous gold exhibits significantly enhanced electrocatalytic activities in comparison with conventional nanoporous gold. This study paves the way to develop high-performance three-dimensional nanoporous catalysts with a tunable surface structure by top-down dealloying for efficient chemical and electrochemical reactions. © 2017 The Author(s).
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/178566
ISSN: 2041-1723
DOI: 10.1038/s41467-017-01085-3
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications
Elements

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
10_1038_s41467-017-01085-3.pdf762.39 kBAdobe PDF

OPEN

NoneView/Download

SCOPUSTM   
Citations

53
checked on Sep 27, 2022

Page view(s)

168
checked on Sep 22, 2022

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons