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Synthesis of ordered mesoporous uranium dioxide by a nanocasting route
Zhao R(赵然); Wang L(王琳); Chai ZF(柴之芳); Shi WQ(石伟群); Zhao, R; Wang, L; Chai, ZF; Shi, WQ
2016
Source PublicationRADIOCHIMICA ACTA
ISSN0033-8230
Volume104Issue:8Pages:549-553
Corresponding Author石伟群
SubtypeArticle
AbstractOrdered mesoporous UO2 with 3-D structure (for UO2-KIT-6) and nanowire bundles (for UO2-SBA-15) was synthesized for the first time by a nanocasting route using different ordered mesoporous silica (KIT-6 and SBA-15, respectively) as templates and uranyl nitrate hexahydrate as the metal precursor. The uranyl nitrate was impregnated into the mesopore of the silica template and was converted to U3O8 after the first step. The synthesis of ordered UO2 mesostructure was achieved by reducing the mesoporous U3O8 with silica composites under 5% H-2/Ar atmosphere at 700 degrees C, followed by a template removal process. The as-prepared UO2-KIT-6 had a particle size of several millimeters, and was constructed with uncoupled subframework mesostructure and crystalline walls, while UO2-SBA-15 possessed a rope-like morphology and consisted of nanowire arrays. The surface area and pore volume of ordered UO2 mesostructure are 47.2m(2) g(-1) and 0.23 cm(3) g(-1) for the UO2-KIT-6, and 54.4m(2) g(-1) and 0.28 cm(3) g(-1) for the UO2-SBA-15, respectively.
KeywordPorous materials phase transformation uranium dioxide nanocasting
DOI10.1515/ract-2015-2563
WOS KeywordCRYSTALLINE WALLS ; OXIDE ; NANOPARTICLES ; NANOCRYSTALS ; PERFORMANCE ; IN2O3
Indexed BySCI
Language英语
WOS IDWOS:000381017600004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/261103
Collection院士
多学科研究中心
Affiliation中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Zhao R,Wang L,Chai ZF,et al. Synthesis of ordered mesoporous uranium dioxide by a nanocasting route[J]. RADIOCHIMICA ACTA,2016,104(8):549-553.
APA 赵然.,王琳.,柴之芳.,石伟群.,Zhao, R.,...&Shi, WQ.(2016).Synthesis of ordered mesoporous uranium dioxide by a nanocasting route.RADIOCHIMICA ACTA,104(8),549-553.
MLA 赵然,et al."Synthesis of ordered mesoporous uranium dioxide by a nanocasting route".RADIOCHIMICA ACTA 104.8(2016):549-553.
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