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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
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| 2016 | |
| Source Publication | RADIOCHIMICA ACTA
 |
| ISSN | 0033-8230 |
| Volume | 104Issue:8Pages:549-553 |
| Corresponding Author | 石伟群 |
| Subtype | Article |
| Abstract | Ordered 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. |
| Keyword | Porous materials phase transformation uranium dioxide nanocasting |
| DOI | 10.1515/ract-2015-2563 |
| WOS Keyword | CRYSTALLINE WALLS ; OXIDE ; NANOPARTICLES ; NANOCRYSTALS ; PERFORMANCE ; IN2O3 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000381017600004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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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