Journal
MATERIALS
Volume 2, Issue 4, Pages 2188-2215Publisher
MDPI
DOI: 10.3390/ma2042188
Keywords
nanoporous; gold; microfabrication; characterization; surface area; morphology; MEMS; catalyst; sensor, gold-silver alloy
Categories
Funding
- NSF [DMI-0507023, CMS-0800790]
- Directorate For Engineering [1063714] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn [1063714] Funding Source: National Science Foundation
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Nanoporous gold (np-Au) has intriguing material properties that offer potential benefits for many applications due to its high specific surface area, well-characterized thiol-gold surface chemistry, high electrical conductivity, and reduced stiffness. The research on np-Au has taken place on various fronts, including advanced microfabrication and characterization techniques to probe unusual nanoscale properties and applications spanning from fuel cells to electrochemical sensors. Here, we provide a review of the recent advances in np-Au research, with special emphasis on microfabrication and characterization techniques. We conclude the paper with a brief outline of challenges to overcome in the study of nanoporous metals.
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