Rapid Screening of Nanoporous Structures in SiO2 Catalyst Particles via Helium Ion Microscopy

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Rapid Screening of Nanoporous Structures in SiO2 Catalyst Particles via Helium Ion Microscopy

Porous materials are some of the most important materials in a vast number of applications including biomaterials, medical delivery systems, solar cells and catalysts [1]. However, the number of techniques available to quantify pore size and pore structure in these material systems is limited. The most common technique to quantify porosity is gas absorption; gas absorption produces a global por...

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BACKGROUND The unique surface sensitivity and the high resolution that can be achieved with helium ion microscopy make it a competitive technique for modern materials characterization. As in other techniques that make use of a charged particle beam, channeling through the crystal structure of the bulk of the material can occur. RESULTS Here, we demonstrate how this bulk phenomenon affects sec...

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ژورنال

عنوان ژورنال: Microscopy and Microanalysis

سال: 2017

ISSN: 1431-9276,1435-8115

DOI: 10.1017/s1431927617002008