Porosity evolution and oxide formation in bulk nanoporous copper dealloyed from a copper–manganese alloy studied by in situ resistometry

Abstract

In situ resistometry is used to study the synthesis of nanoporous copper and its electrochemical behaviour which contributes significantly to the fundamental understanding of pore evolution and the concomitant formation of functional oxides.

Nanoporous oxide electrodes for energy conversion and storage devices

“…As presented in Fig. 6a, dealloying can be achieved through chemical etching, 3,[181][182][183][184][185][186] electrochemical processing, 181,[187][188][189][190] immersion in liquid metal, 181,[191][192][193] and solid-state stripping, 181,[194][195][196] as well as by vapor-thermal processing. 181,[197][198][199] The metal atoms in the primary alloy are changed into metallic ions by localized oxidation when nanoporous oxide materials are produced using dealloying procedures.…”

Deformation-Mediated Surface Activation of a Ni–Cu–Mn Ternary Alloy System for Energy Storage in Supercapacitors

“…Typically, the surface morphology of a dealloyed specimen is dependent upon the alloy chemistry, dealloying conditions, and dealloying medium. − In addition, surface activity/surface energy is another key factor that can significantly tailor the surface morphology during the dealloying process. However, the role of surface activation/surface energy in the microstructural evolution and its performance as an electrode in a supercapacitor device has not been explicitly explored, particularly for the multicomponent systems.…”