Dealloying monolithic Pt-Cu alloy to wire-like nanoporous structure for electrocatalysis and electrochemical sensing

Influence of dealloying solution on the microstructure of nanoporous copper through chemical dealloying of Al75Cu25ribbons

“…Nanoporous metals (NPMs), which possess high specific surface area and tunable porosity, have attracted considerable interest in catalysis [1], sensors [2], surface-enhanced Raman scattering (SERS) substrates [3,4], lithium ion batteries [5], etc. Generally, NPMs can be prepared by template methods [6], like liquid-crystal template [7] and colloidal crystal template [8].…”

Destruction of a Copper Metal–Organic Framework to Induce CuPt Growth as a Heterojunction Catalyst for Hydrogen Peroxide Sensing

“…The sensing sensitivity was calculated to be 6.942 mA • mM À 1 • cm À 2 . The sensing performance of CuPt NP@CuHHTP for H 2 O 2 outstripped that of most reported noble metal-based alloys and noble metal/MOF composites, such as Pt 60 Cu 40 , [19] NP-PdCu alloy, [20] PtCu alloy octahedra, [21] Pd@UiO-66-on-ZIF-L/CC, [22] Pt@UiO-66, [23] ZIF-67-Au@Pt, [24] and AuCu/PPy/Cu-TCPP [25] (Table S3).…”

Preparation and Characterization of Nanoporous Copper Films by Chemical Dealloying

“…In addition, they show many advantages over conventionally used nanoparticles in particular for heterogeneous and electrochemical reactions, for instance (i) high surface area (4), (ii) high number of low coordinated surface atoms which might improve the catalytic properties, (iii) tunable content of the less noble metal (5) to modify the electronic and geometric properties of the noble metal-rich surface and finally (iv) improved mass transport properties by adjusting the ligament sizes and pore sizes. Excellent examples for nanoporous metallic materials prepared by dealloying are to find in the literature: Ag-Au, Al-Cu or Cu-Pt (6)(7)(8).…”