Consolidation of Tin Sulfide Chalcogels and Xerogels with and without Adsorbed Iodine

Brian J. Riley, David A. Pierce, William C. Lepry, Jared O. Kroll, Jaehun Chun, Kota Surya Subrahmanyam, Mercouri G Kanatzidis, Fares Khamis Alblouwy, Aneeruddha Bulbule, Edward M. Sabolsky

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Abstract

Tin sulfide (Sn2S3) chalcogels are one of the most effective nonoxide aerogels evaluated to date for iodine gas capture. This is attributed to the fact that the Sn within the gel network has a strong affinity for chemisorption of iodine to form SnI4. This study demonstrates an approach for consolidating the raw and iodine-sorbed Sn2S3 chalcogels into a chalcogenide glass using GeS2 as a glass-forming additive. Adding GeS2 to iodine-sorbed or iodine-free Sn2S3 chalcogels provides better glass formation than Sn-S or Sn-S-I alone, and the quantity of iodine measured in the bulk glass of the consolidated iodine-sorbed Sn2S3 chalcogel was at ∼45 mass%. Additional experiments were conducted using microwave sintering and hot isostatic pressing with iodine-sorbed Sn2S3 xerogels to evaluate alternative consolidation techniques.

Original languageEnglish
Pages (from-to)11259-11267
Number of pages9
JournalIndustrial and Engineering Chemistry Research
Volume54
Issue number45
DOIs
Publication statusPublished - Nov 5 2015

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ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering

Cite this

Riley, B. J., Pierce, D. A., Lepry, W. C., Kroll, J. O., Chun, J., Subrahmanyam, K. S., Kanatzidis, M. G., Alblouwy, F. K., Bulbule, A., & Sabolsky, E. M. (2015). Consolidation of Tin Sulfide Chalcogels and Xerogels with and without Adsorbed Iodine. Industrial and Engineering Chemistry Research, 54(45), 11259-11267. https://doi.org/10.1021/acs.iecr.5b02697