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 Kanatzidis, Fares Khamis Alblouwy, Aneeruddha Bulbule, Edward M. Sabolsky

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations


Tin sulfide (Sn 2 S 3 ) 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 SnI 4 . This study demonstrates an approach for consolidating the raw and iodine-sorbed Sn 2 S 3 chalcogels into a chalcogenide glass using GeS 2 as a glass-forming additive. Adding GeS 2 to iodine-sorbed or iodine-free Sn 2 S 3 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 Sn 2 S 3 chalcogel was at ∼45 mass%. Additional experiments were conducted using microwave sintering and hot isostatic pressing with iodine-sorbed Sn 2 S 3 xerogels to evaluate alternative consolidation techniques.

Original languageEnglish (US)
Pages (from-to)11259-11267
Number of pages9
JournalIndustrial and Engineering Chemistry Research
Issue number45
StatePublished - Nov 5 2015

ASJC Scopus subject areas

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

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