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Title: Consolidation of tin sulfide chalcogels and xerogels with and without adsorbed iodine

Tin sulfide (Sn2S3) chalcogels are one of the most effective non-oxide 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. The system with both iodine-sorbed and iodine-free Sn2S3 chalcogels provides better glass-forming characteristics 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 also conducted using microwave sintering and hot isostatic pressing with Sn2S3 xerogels.
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Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0888-5885; AF5805010
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Industrial and Engineering Chemistry Research; Journal Volume: 54; Journal Issue: 45
American Chemical Society (ACS)
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Org:
Country of Publication:
United States
chalcogel; xerogel; iodine; tin sulfide