Synthesis and Properties of Metal Oxide Aerogels via Ambient Pressure Drying
Metal oxide aerogels such as zirconia (ZrO2), titania (TiO2), and alumina (Al2O3) aerogels are very interesting nanoporous materials applicable as thermal insulators, catalysts, sensors, and so on. To obtain the aerogels, the first key step
is a sol–gel process to prepare the gel followed by either supercritical drying, ambient pressure drying, or freeze-drying. Although the expensive and energy-intensive supercritical drying method restricts the commercialization of the aerogels, ambient pressure drying has shown great
potential as an alternative and very simple method for aerogel synthesis. The sol–gel method and preparation parameters such as hydrolysis water, the silylating agent concentration, and the thermal treatment temperature have a profound impact on the textural and structural properties
of the aerogels. Therefore, in this review, we study the synthesis and the influence of these parameters on the properties of metal oxide aerogels via ambient pressure drying.
Keywords: Ambient Pressure Drying; Metal Oxides Aerogel; Sol–Gel; Textural Properties
Document Type: Research Article
Affiliations: 1: School of Physical Sciences, Solapur University, Solapur-Pune National Highway, Kegaon, Solapur 413255, Maharashtra, India 2: Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea 3: Polymer Chemistry Division, Solapur University, Solapur – Pune National Highway, Kegaon, Solapur 413255, Maharashtra, India
Publication date: 01 March 2019
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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