Nanoporous gold: From structure evolution to functional properties in catalysis and electrochemistry

G Wittstock, M Bäumer, W Dononelli… - Chemical …, 2023 - ACS Publications
Nanoporous gold (NPG) is characterized by a bicontinuous network of nanometer-sized
metallic struts and interconnected pores formed spontaneously by oxidative dissolution of …

One-dimensional metal nanostructures: from colloidal syntheses to applications

D Huo, MJ Kim, Z Lyu, Y Shi, BJ Wiley, Y Xia - Chemical reviews, 2019 - ACS Publications
This Review offers a comprehensive review of the colloidal synthesis, mechanistic
understanding, physicochemical properties, and applications of one-dimensional (1D) metal …

25th anniversary article: galvanic replacement: a simple and versatile route to hollow nanostructures with tunable and well‐controlled properties

X Xia, Y Wang, A Ruditskiy, Y Xia - Advanced Materials, 2013 - Wiley Online Library
This article provides a progress report on the use of galvanic replacement for generating
complex hollow nanostructures with tunable and well‐controlled properties. We begin with a …

Size effects on the mechanical behavior of nanoporous Au

J Biener, AM Hodge, JR Hayes, CA Volkert… - Nano …, 2006 - ACS Publications
Recent nanomechanical tests on submicron metal columns and wires have revealed a
dramatic increase in yield strength with decreasing sample size. Here, we demonstrate that …

Nanoporous gold: a new material for catalytic and sensor applications

A Wittstock, J Biener, M Bäumer - Physical Chemistry Chemical …, 2010 - pubs.rsc.org
Nanostructured materials are governed by their surface chemical properties. This is
strikingly reflected by np-Au. This material can be generated by corrosion of bulk Ag–Au …

Ultrafine nanoporous gold by low-temperature dealloying and kinetics of nanopore formation

LH Qian, MW Chen - Applied Physics Letters, 2007 - pubs.aip.org
A low-temperature dealloying technique was developed to tailor the characteristic length
scale of nanoporous gold for advanced functional applications. By systematically …

Platinum-alloy cathode catalyst degradation in proton exchange membrane fuel cells: nanometer-scale compositional and morphological changes

S Chen, HA Gasteiger, K Hayakawa… - Journal of the …, 2009 - iopscience.iop.org
Electrochemical measurements showed an Pt surface area loss and an specific activity loss
for a membrane electrode assembly (MEA) cathode with acid-treated"" catalyst particles in a …

Hierarchical nested-network nanostructure by dealloying

Z Qi, J Weissmuller - Acs Nano, 2013 - ACS Publications
Applications of porous microstructures in functional materials often impose conflicting
requirements on the pore size, which may be met by hierarchical structures that combine …

Fabrication of Cubic Nanocages and Nanoframes by Dealloying Au/Ag Alloy Nanoboxes with an Aqueous Etchant Based on Fe(NO3)3 or NH4OH

X Lu, L Au, J McLellan, ZY Li, M Marquez, Y Xia - Nano letters, 2007 - ACS Publications
This paper describes a two-step procedure for generating cubic nanocages and
nanoframes. In the first step, Au/Ag alloy nanoboxes were synthesized through the galvanic …

Monolithic nanoporous copper by dealloying Mn–Cu

JR Hayes, AM Hodge, J Biener, AV Hamza… - Journal of Materials …, 2006 - cambridge.org
Monolithic nanoporous copper was synthesized by dealloying Mn0. 7Cu0. 3 by two distinct
methods: potentiostatically driven dealloying and free corrosion. Both the ligament size and …