Tuning Surface Structure of 3D Nanoporous Gold by Surfactant-Free Electrochemical Potential Cycling

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 29(2017), 41 vom: 19. Nov.
1. Verfasser: Wang, Zhili (VerfasserIn)
Weitere Verfasser: Ning, Shoucong, Liu, Pan, Ding, Yi, Hirata, Akihiko, Fujita, Takeshi, Chen, Mingwei
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article electrocatalysis nanoporous gold surface engineering surface structure
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520 |a 3D dealloyed nanoporous metals have emerged as a new class of catalysts for various chemical and electrochemical reactions. Similar to other heterogeneous catalysts, the surface atomic structure of the nanoporous metal catalysts plays a crucial role in catalytic activity and selectivity. Through surfactant-assisted bottom-up synthesis, the surface-structure modification has been successfully realized in low-dimensional particulate catalysts. However, the surface modification by top-down dealloying has not been well explored for nanoporous metal catalysts. Here, a surfactant-free approach to tailor the surface structure of nanoporous gold by surface relaxation via electrochemical redox cycling is reported. By controlling the scan rates, nanoporous gold with abundant {111} facets or {100} facets can be designed and fabricated with dramatically improved electrocatalysis toward the ethanol oxidation reaction 
650 4 |a Journal Article 
650 4 |a electrocatalysis 
650 4 |a nanoporous gold 
650 4 |a surface engineering 
650 4 |a surface structure 
700 1 |a Ning, Shoucong  |e verfasserin  |4 aut 
700 1 |a Liu, Pan  |e verfasserin  |4 aut 
700 1 |a Ding, Yi  |e verfasserin  |4 aut 
700 1 |a Hirata, Akihiko  |e verfasserin  |4 aut 
700 1 |a Fujita, Takeshi  |e verfasserin  |4 aut 
700 1 |a Chen, Mingwei  |e verfasserin  |4 aut 
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