title: Controlling the assembly of graphene oxide by an electrolyte-assisted approach.
abstract: In this work, we studied the effects of salts on the self-assembly of two-dimensional graphene oxide (GO) driven by the dissolution of a sub-microliter droplet. Two kinds of structures were obtained. One was a GO snowball with small salt crystals inserted between sheets, which formed with a low initial concentration of insoluble salt in the GO dispersion. The other was a hybrid nanostructure containing NaCl or KCl crystals on a GO snowball, which formed with a high initial salt concentration in the suspension. In addition, we report the novel nanodent-decorated GO snowballs formed by templating the spontaneously formed microdroplets through ouzo effects. Such highly crumpled snowball structures may find applications in super-capacitors or catalyst supports.
authors.affiliation: Department of Chemical and Biomolecular Engineering and Particulate Fluid Processing Center, University of Melbourne, VIC 3010, Australia.
authors.forename: Yuting
authors.initials: Y
authors.lastname: Song
authors.forename: Haijun
authors.initials: H
authors.lastname: Yang
authors.forename: Yufei
authors.initials: Y
authors.lastname: Wang
authors.forename: Shimou
authors.initials: S
authors.lastname: Chen
authors.forename: Dan
authors.initials: D
authors.lastname: Li
authors.forename: Suojiang
authors.initials: S
authors.lastname: Zhang
authors.forename: Xuehua
authors.initials: X
authors.lastname: Zhang
mesh_terms: D003460:Crystallization; D004573:Electrolytes / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry; D010087:Oxides / Q000737:chemistry; D011189:Potassium Chloride / Q000737:chemistry; D012492:Salts / Q000737:chemistry; D012965:Sodium Chloride / Q000737:chemistry
chemical_list: D004573:Electrolytes; D010087:Oxides; D012492:Salts; D012965:Sodium Chloride; D011189:Potassium Chloride; D006108:Graphite