Water evaporation in silica colloidal deposits
نویسندگان
چکیده
منابع مشابه
Nanoscale Morphology of Water in Silica Colloidal Crystals.
We show a simple method to visualize the morphology of water adsorbed within the pore network of colloidal crystals made of submicrometer silica spheres. Water is replicated into silica by modified silicon tetrachloride hydrolysation under standard ambient conditions, making it visible to standard electronic microscopy and thus allowing one to discern the original water distribution. Different ...
متن کاملBinary Colloidal Crystal Films Grown by Vertical Evaporation of Silica Nanoparticle Suspensions.
Despite intensive research efforts in the synthesis of binary colloidal crystals, the production of well ordered binary colloidal crystal films over large areas continues to be synthetically challenging. In this paper, we investigate the phase behavior of binary mixtures of l-arginine-stabilized 36 and 22 nm silica nanoparticles deposited as centimeter-scale thin films onto a vertical substrate...
متن کاملOpaline silica in young deposits on Mars
High spatial and spectral resolution refl ectance data acquired by the Mars Reconnaissance Orbiter Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument reveal the presence of H2Oand SiOH-bearing phases on the Martian surface. The spectra are most consistent with opaline silica and glass altered to various degrees, confi rming predictions based on geochemical experiments and m...
متن کاملEvaporation-driven assembly of colloidal particles.
Colloidal particles absorbed at the interface of a liquid droplet arrange into unique packings during slow evaporation [V.N. Manoharan et al., Science 301, 483 (2003)]. We present a numerical and theoretical analysis of the packing selection problem. The selection of a unique packing arises almost entirely from geometrical constraints during the drying.
متن کاملSynthesis of colloidal silica dumbbells.
We describe the synthesis and characterization of stable suspensions of monodisperse fluorescently labeled silica dumbbell particles. Pure dispersions of silica dumbbells with center-to-center lengths from 174 nm to 2.3 microm were produced with a variety of aspect ratios. Individual particles in concentrated dispersions of these particles could be imaged with confocal microscopy. These particl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Colloid and Interface Science
سال: 2013
ISSN: 0021-9797
DOI: 10.1016/j.jcis.2013.07.013