Assembly of antimony doped tin oxide nanocrystals into conducting macroscopic aerogel monoliths

Abstract

We present the assembly of preformed antimony doped tin oxide nanobuilding blocks into centimeter sized aerogels with surface areas exceeding 340 m(2) g(-1). After calcination, the resistivity of the aerogels was decreased by 4 orders of magnitude to a few kΩ cm, with the primary conducting structures measuring only a few nanometers.

Dynamic capture of low-concentration CO2 on amine hybrid silsesquioxane aerogel

“…Also, the microstructures and elemental compositions of aerogels can be tailored using solution chemistry via a process known as the sol-gel method [27,28]. Cui et al developed amine-modified silica aerogel by grafting 3-aminopropyltriethoxysilane (APTES) onto the framework of silica gel [29].…”

Development of monolithic adsorbent via polymeric sol–gel process for low-concentration CO2 capture

“…Recently, investigations have focused on using aerogels as new supports to form amine-based CO 2 adsorbents, due to their unique physical properties such as low densities, high surface areas and porosities [25][26][27][28][29][30]. Moreover, the microstructures and elemental compositions of aerogels can be tailored using solution chemistry via a process known as the sol-gel method [31][32][33]. Cui et al developed amine-modified silica aerogel by grafting 3-aminopropyltriethoxysilane (APTES) onto the framework of silica gel [20].…”

Nonaqueous synthesis of Ag-functionalized In2O3/ZnO nanocomposites for highly sensitive formaldehyde sensor

“…As reported, the IZO structure are constructed by metal organic chemical vapor deposition (MOCVD) [7], electrospinning [2], thermal vapor method [8], etc.. Also, the development of a new route to synthesize IZO nanocomposites for gas sensors is of primary importance in scientific research and industrial applications. Over the past decades, the nonaqueous synthesis was successfully applied for the synthesis of various metal oxide nanoparticles [9,10], hybrid nanomaterials [11], aerogel [12,13], and also for the growth of metal thin films [14,15], in which involves the reaction of a metal halide with an oxygen Page 4 of 34 A c c e p t e d M a n u s c r i p t donor such as an alkoxide, an ether, an alcohol, and so on under nonaqueous conditions, leading to the formation of an inorganic oxide with a common byproduct of alkyl halide. In particular the synthesis of In 2 O 3 [16][17][18] and ZnO [19] by the nonaqueous synthesis were reported to be quite robust.…”