Nanoporous Dealloyed Metal Materials Processing and Applications─A Review

Gabriele Scandura, Priyanka Kumari, Giovanni Palmisano, Georgios N. Karanikolos, Julius Orwa, Ludovic F. Dumée

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations

Abstract

The development of porous metal materials with pore geometries and sizes at the nanoscale offers promising opportunities for the development of smart responsive interfaces for separation and catalytic applications and as building blocks for complex composite materials. Dealloying is an innovative technique based on selective removal of a sacrificial metal from a metal alloy to engineer surface textures and pores across significant thicknesses. Dealloyed structures may be processed over large scales and for a range of source alloys, offering unprecedented manufacturing opportunities. This review presents the operations and challenges of dealloying routes and discusses avenues for process optimizations and improvements, aiming at the development of scalable nanoporous materials. The potential of dealloyed materials for catalytic and sensing applications is expanded and benchmarked against reference materials. Future prospects and applications of dealloyed materials toward surface reactivity control and pore architecture development are highlighted.

Original languageBritish English
Pages (from-to)1736-1763
Number of pages28
JournalIndustrial and Engineering Chemistry Research
Volume62
Issue number4
DOIs
StatePublished - 1 Feb 2023

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