Fabrication of Hierarchically Structured Porous Films of Metal Oxides and Carbonates Through Coffee Ring Effect. (2016)

• Record Type: Journal Article
• Authors: Khapli, Sachin; Rianasari, Ina; Sharma, Sudhir; Blanton, Tom; Jagannathan, Ramesh
• Is Part Of: Materials today. Volume 3:Number 2(2016)
• Page Start: 362
• Page End: 368
• Publication Date: 2016
• Subjects: Hierarchically porous materials -- nanowires -- two-dimensional crystals -- calcium carbonate -- zinc oxide; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2016.01.021
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: We report a versatile method for the fabrication of hierarchically structured porous ceramic films through a non-vacuum, aerosol-based deposition technique. Our method consists of evaporation of CO2 -enriched water microdroplets containing dissolved organic salts and yields a variety of porous scaffolds with micron-sized pores. In addition, the films are characterized by a hierarchy of structural features, such as nanowires, nanorods, 2-dimensional crystals, or nanopores. This scalable, environment-friendly method is applicable to a wide variety of ceramic materials and can lead to materials with an improved performance in catalysis, sensors, solar cells, fuel cells, and tissue engineering.