Formation of different types nanoporous composite structure by dealloying of Ag and Ni containing Al-Cu-Ti base amorphous precursor alloys

Hyun, Jae Ik; Noh, Heug Soo; Kong, Kyeongho; Kim, Dong-Won; Kim, Do Hyang

doi:10.1016/j.matchar.2021.111093

Cited by 6 publications

(3 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By using dealloying, nanoporous structures have been successfully obtained on different types of metals, such as Au, Pt, Pd, Cu, Ni, and Ag, using crystal alloys as precursors, such as Au-Ag, Pt-Cu, Pd-Co, Cu-Mn, Ni-Mn, and Ag-Zn. In addition, due to advantages, such as homogeneous structure, small element limitations, and wide range of compositions, amorphous materials are more suitable as precursors for nanoporous metals than crystalline materials [43][44][45][46][47]. More and more scholars use amorphous materials as precursors to prepare nanoporous metals; however, there are still limitations when preparing nanoporous metals with amorphous materials as precursors due to factors, such as size.…”

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

View full text Add to dashboard Cite

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.

show abstract

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

View full text Add to dashboard Cite

show abstract

“…The problem of coarsening can be overcome by slowing the surface diffusion, performing dealloying at low temperatures, and the addition of a third noble metal (Pt) component to precursor alloy (Au-Pt-Ag) [ 49 , 50 ]. The approach has been extended to design nanoporous Pt, Ag, Pd, and Cu through chemical dealloying of Al-based precursor alloys [ 42 , 51 , 52 ], as well as bimetallic (CuTi, PtTi) [ 53 , 54 ] and trimetallic (Al 2 CuTi) nanoporous materials with pore sizes in the range of 10–20 nm [ 55 ]. In recent work, Hyun et al fabricated trimetallic nanoporous materials from the dealloying of Al-Cu-Ti-based precursor alloy [ 55 ].…”

Section: Dealloying For Fabricating Nanoporous Materialsmentioning

confidence: 99%

“…The approach has been extended to design nanoporous Pt, Ag, Pd, and Cu through chemical dealloying of Al-based precursor alloys [ 42 , 51 , 52 ], as well as bimetallic (CuTi, PtTi) [ 53 , 54 ] and trimetallic (Al 2 CuTi) nanoporous materials with pore sizes in the range of 10–20 nm [ 55 ]. In recent work, Hyun et al fabricated trimetallic nanoporous materials from the dealloying of Al-Cu-Ti-based precursor alloy [ 55 ]. They showed that adding minor element (4–6% of Ni and Ag) precursor alloy significantly suppressed dealloying kinetics (lowering the diffusion rate of atoms), thus, reducing the coarsening effect.…”

Section: Dealloying For Fabricating Nanoporous Materialsmentioning

confidence: 99%

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

et al. 2022

View full text Add to dashboard Cite

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.

show abstract

An innovative procedure for synthesizing Al70M20(Fe, Co)Cr10 amorphous nanoparticles by arc discharge method and investigation of their magnetic, hardness, and corrosion resistance properties

Mohammadian

Farbod

Gheisari

et al. 2022

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Formation of different types nanoporous composite structure by dealloying of Ag and Ni containing Al-Cu-Ti base amorphous precursor alloys

Cited by 6 publications

References 34 publications

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

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

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

An innovative procedure for synthesizing Al70M20(Fe, Co)Cr10 amorphous nanoparticles by arc discharge method and investigation of their magnetic, hardness, and corrosion resistance properties

Contact Info

Product

Resources

About