Deep eutectic solvent-assisted growth of gold nanofoams and their excellent catalytic properties

Ionic liquids and deep eutectics as a transformative platform for the synthesis of nanomaterials

“…This was first shown by Liao et al who demonstrated the synthesis of very high-index faceted gold nanoparticles in snowflake, star, and thorn morphologies, in the ChCl:urea DES. 244 This work inspired numerous subsequent studies, who have shown various DES-based methodologies for the synthesis of AuNPs, 245 with control over morphology 246 enabling Au nanoflowers, 247 nanofoams, 248 highly fractal nanostars, 249 and nanosheets. 250 Using a ‘natural DES’ (NADES) allows this to be achieved without adding a reducing agent, 251 but morphology control, such as the formation of nanosheets, can still be achieved.…”

Growth dynamics of pulsed laser deposited nanofoams

“…2. Micrometric-sized aggregates of nanoparticles are already present on the substrate even for very few (5)(6)(7)(8)(9)(10) shots. An example of the typical aggregate morphology is shown in Fig.…”

“…Nanofoams exhibit ultralow density [1] (1−100 mg/cm 3 ) and extremely high surface-to-volume ratio, which make them of interest for many research fields of great societal and technological importance, such as hydrogen storage [2], next generation supercapacitors [3] and catalysts [4,5], water treatment [6], gas sensing [7], and medicine [8]. In the past years, nanofoam materials derived from different elements have been investigated, namely noble metals [2,9], transition metals [3][4][5], oxides [10,11], semiconductors [12], and organic compounds. Among them, carbon (C) nanofoams have attracted an impressive amount of research efforts because of their unusual and appealing features, like an unconventional ferromagnetic behavior [13,14], giant optical absorption [15], and an increased adsorption and storage capability [16], together with the unique carbon capability of forming chemical bonds that are very different in their nature (i.e., sp 1 , sp 2 , and sp 3 hybridization).…”

Novel deep eutectic solvent-functionalized carbon nanotubes adsorbent for mercury removal from water

“…Due to DESs' physicochemical properties, they been used in a variety of applications [24,25]. Most recently, DESs have achieved widespread use in nanotechnology-related fields, with uses such as media for synthesis of nanoparticles [26][27][28][29][30][31], electrolytes in nanostructure sensors [32], and electrolytes in nanoparticle deposition [33][34][35][36][37][38][39][40][41]. Based on these applications, DESs have the potential to be used as economically and environmentally friendly functionalization agents.…”