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Preparation of zirconia aerogel with L-glutamic acid

NOPR - NISCAIR Online Periodicals Repository

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Field Value
 
Title Preparation of zirconia aerogel with L-glutamic acid
 
Creator Wu, Yangyang
Zhang, Shouquan
Chen, Gangling
Tian, Xiaohui
Wang, Xiaoqing
 
Subject Green and environmental protection
L-glutamic acid
Sol-gel
ZrO2 aerogel
 
Description 281-287
In preparation of zirconia aerogel, propylene oxide (PO) is generally used as gel accelerator. PO is toxic and harmful to the environment. So in this article, green, environmental protection, safe and non-toxic L-glutamic acid (LGA) and L-aspartic acid (LAA) have been applied as gelators to replace PO. Series of ZrO2 aerogels have been synthesized with sol-gel method by ethanol supercritical drying and characterized by XRD, SEM and TEM techniques. Nitrogen adsorption-desorption measurements have been used to characterize the specific surface area. The effect of H+ concentration on the crystallinity of zirconia has also been studied. The prepared ZrO2 aerogels with low density, low thermal conductivity, and high specific area can make them promising candidates for a wide array of multifunctional applications, e.g., catalyst support, energy conversion, and thermal insulation.
 
Date 2024-03-12T09:12:18Z
2024-03-12T09:12:18Z
2024-03
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/63566
https://doi.org/10.56042/ijct.v31i2.539
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.31(2) [March 2024]