Fabrication of Nanoporous Al by Vapor-Phase Dealloying: Morphology Features, Mechanical Properties and Model Predictions

Pinna, Andrea; Pia, Giorgio; Casula, Maria Francesca; Delogu, Francesco; Sogne, Elisa; Falqui, Andrea; Pilia, Luca

doi:10.3390/app11146639

Cited by 12 publications

(5 citation statements)

References 40 publications

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“…The evaporated component from the dealloying process can also be reused. Additionally, the pore size of the nanoporous structure prepared by vapor-phase dealloying is adjustable [50][51][52].…”

Section: Preparation Methods Of Nanoporous Metalsmentioning

confidence: 99%

Electro-Chemical Actuation of Nanoporous Metal Materials Induced by Surface Stress

Zhao

Hao

et al. 2023

Metals

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Similar to biological muscles, the actuator materials can function as artificial muscles by directly converting an external stimulus in the form of electrical or chemical energy into a mechanical response through the reversible changes in material dimensions. As a new type of high surface-area actuator materials, nanoporous metals represent a novel class of smart electrodes that undergo reversible dimensional changes when applying an electronic voltage on the surface. The dimensional changes in nanoporous metal/polymer composite still originate from the surface stress of nanoporous metal. Additionally, this surface stress can be modulated by the co-adsorbed sulfate counter-ions that are present in the doped polymer chains coating matrix upon the application of an external potential. Nanoporous metals fabricated by dealloying have received extensive attention in many areas, such as catalysis/electrocatalysis, energy conversion/storage, and sensing/biosensing. In this review, we focus on the recent developments of dealloyed nanoporous metals in the application of actuation. In particular, we summarize the experimental strategies in the studies and highlight the recent advances in the actuator materials. Finally, we conclude with outlook and perspectives with respect to future research on dealloyed nanoporous metals in applications of actuation in electrochemical or chemical environment.

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Section: Preparation Methods Of Nanoporous Metalsmentioning

confidence: 99%

Electro-Chemical Actuation of Nanoporous Metal Materials Induced by Surface Stress

Zhao

Hao

et al. 2023

Metals

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“…[ 45 ] Porosity of cell membranes, [ 46 ] and fractal dimension and porosity of material pores have also been quantified using SBF‐SEM. [ 47 ] Quantifications go far beyond this, and novel quantifications are further constantly being developed.…”

Section: Differing Segmentation Techniquesmentioning

confidence: 99%

Serial Block Face‐Scanning Electron Microscopy as a Burgeoning Technology

et al. 2023

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Serial block face scanning electron microscopy (SBF‐SEM), also referred to as serial block‐face electron microscopy, is an advanced ultrastructural imaging technique that enables three‐dimensional visualization that provides largerx‐ and y‐axis ranges than other volumetric EM techniques. While SEM is first introduced in the 1930s, SBF‐SEM is developed as a novel method to resolve the 3D architecture of neuronal networks across large volumes with nanometer resolution by Denk and Horstmann in 2004. Here, the authors provide an accessible overview of the advantages and challenges associated with SBF‐SEM. Beyond this, the applications of SBF‐SEM in biochemical domains as well as potential future clinical applications are briefly reviewed. Finally, the alternative forms of artificial intelligence‐based segmentation which may contribute to devising a feasible workflow involving SBF‐SEM, are also considered.

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“…The pore size can be controlled via vacuum pressure, temperature, and heating time. This approach was also expanded to fabricate nanoporous Ni, Ge, and Al from Ni-Zn, Ge-Zn, and Al-Zn, respectively [ 77 , 91 , 92 ]. This technique offers several benefits, including easy and cost-effective recovery of evaporated elements and the capability to fabricate nanoporous materials from less noble metals and low melting point elements independent of their electrical conductivity, electrochemical activity, and alloying miscibility.…”

Section: Dealloying For Fabricating Nanoporous Materialsmentioning

confidence: 99%

Recent Advancements in the Fabrication of Functional Nanoporous Materials and Their Biomedical Applications

et al. 2022

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Functional nanoporous materials are categorized as an important class of nanostructured materials because of their tunable porosity and pore geometry (size, shape, and distribution) and their unique chemical and physical properties as compared with other nanostructures and bulk counterparts. Progress in developing a broad spectrum of nanoporous materials has accelerated their use for extensive applications in catalysis, sensing, separation, and environmental, energy, and biomedical areas. The purpose of this review is to provide recent advances in synthesis strategies for designing ordered or hierarchical nanoporous materials of tunable porosity and complex architectures. Furthermore, we briefly highlight working principles, potential pitfalls, experimental challenges, and limitations associated with nanoporous material fabrication strategies. Finally, we give a forward look at how digitally controlled additive manufacturing may overcome existing obstacles to guide the design and development of next-generation nanoporous materials with predefined properties for industrial manufacturing and applications.

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Fabrication of Nanoporous Al by Vapor-Phase Dealloying: Morphology Features, Mechanical Properties and Model Predictions

Cited by 12 publications

References 40 publications

Electro-Chemical Actuation of Nanoporous Metal Materials Induced by Surface Stress

Electro-Chemical Actuation of Nanoporous Metal Materials Induced by Surface Stress

Serial Block Face‐Scanning Electron Microscopy as a Burgeoning Technology

Recent Advancements in the Fabrication of Functional Nanoporous Materials and Their Biomedical Applications

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