Structure evolution of mesoporous silica SBA-15 and MCM-41 under swift heavy ion irradiation

被引:9
|
作者
Lou, Y. [1 ]
Toquer, G. [1 ]
Dourdain, S. [1 ]
Rey, C. [1 ]
Grygiel, C. [2 ]
Simeone, D. [3 ]
Deschanels, X. [1 ]
机构
[1] CEA CNRS UM2 ENSCM Marcoule, ICSM UMR 5257, F-30207 Bagnols Sur Ceze, France
[2] CIMAP GANIL, F-14070 Caen 5, France
[3] CEA Saclay, CEA, DEN, LRC CARMEN, F-91191 Gif Sur Yvette, France
关键词
Ion irradiation; Radiation compaction; Mesoporous silica; RADIATION COMPACTION; ADSORPTION; TRACKS;
D O I
10.1016/j.nimb.2015.08.009
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Two types of mesoporous silica pellets, SBA-15 and MCM-41, were prepared and irradiated by Ne-20 278 MeV (max. fluence = 2.5 x 10(14) ion/cm(2)) and Ar-36 493 MeV beams (max. fluence = 1 x 10(13) ion/cm(2)). Irradiated and non-irradiated samples were characterized by nitrogen adsorption/ desorption analysis, small angle X-ray scattering, and infrared spectrometry. The different behaviours of the two materials under different conditions are observed and discussed. We point out that SBA-15 is more robust than MCM-41 under irradiation. (C) 2015 Elsevier BM. All rights reserved.
引用
收藏
页码:336 / 341
页数:6
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