Influence of solvents on properties of monolithic La-based aerogels

Zhu Xiurong; Zhou Bin; Du Ai; Yu Yi; Yuan Jujun; Yu Huajun; Zhang Xianke

doi:10.11884/HPLPB201527.112011

Volume 27 Issue 11

Nov. 2015

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Article Navigation > High Power Laser and Particle Beams > 2015 > 27(11): 112011

Qing Chun, Wu Xiaoqing, Li Xuebin, et al. Forecast upper air optical turbulence based on weather research and forecasting model[J]. High Power Laser and Particle Beams, 2015, 27: 061009. doi: 10.11884/HPLPB201527.061009

Citation:

Zhu Xiurong, Zhou Bin, Du Ai, et al. Influence of solvents on properties of monolithic La-based aerogels[J]. High Power Laser and Particle Beams, 2015, 27: 112011. doi: 10.11884/HPLPB201527.112011

Citation:

Zhu Xiurong, Zhou Bin, Du Ai, et al. Influence of solvents on properties of monolithic La-based aerogels[J]. High Power Laser and Particle Beams, 2015, 27: 112011. doi: 10.11884/HPLPB201527.112011

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Influence of solvents on properties of monolithic La-based aerogels

doi: 10.11884/HPLPB201527.112011

Zhu Xiurong^{1,2
,
,},
Zhou Bin²,
Du Ai²,
Yu Yi¹,
Yuan Jujun¹,
Yu Huajun¹,
Zhang Xianke¹

1.
School of Physics and Electronic Information,Gannan Normal University,Ganzhou 341000,China;
2.
Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology,Tongji University,Shanghai 200092,China

Publish Date: 2015-10-27

Abstract

Abstract

La-based aerogels were synthesized by using LaCl37H2O as precursor, methanol and ethanol as solvents, via sol-gel process. The microstructure, components, specific surface area, pore diameter distribution and mechanical properties were characterized by scanning electron microscopy, Fourier transform infrared spectrometer, adsorption/desorption analysis and mechanical property tester, respectively. The results reveals that La-based aerogels derived from methanol and ethanol have a three-dimension network that consists of interconnected bead-like particles with diameters varying from several tens to hundreds nanometer. Comparing to the aerogel (specific surface area: 95 m2g-1, density: about 350 mgcm-3) derived from methanol, the aerogel (specific surface area: 220 m2g-1, density: about 160 mgcm-3) derived from ethanol possesses better pore morphology and worse mechanical property. The properties of the La-based aerogels can be attributed to the stronger polarity of methanol.
- rare earth,
- lanthanum,
- aerogel,
- sol-gel,
- mechanical property

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