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Molecular dynamics simulations have been performed to investigate the structures of Lennard–Jones(LJ) nanowires(NWs) encapsulated in carbon nanotubes(CNTs). We find that the structures of NWs in a small CNT only adopt multi-shell motifs, while the structures of NWs in a larger CNT tend to adopt various motifs. Among these structures, three of them have not been reported previously. The phase boundaries among these structures are obtained regarding filling fractions, as well as the interaction between NWs and CNTs. 相似文献
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Structure of Lennard-Jones nanowires encapsulated by carbon nanotubesStructure of Lennard-Jones nanowires encapsulated by carbon nanotubesStructure of Lennard-Jones nanowires encapsulated by carbon nanotubesStructure of Lennard-Jones nanowires encapsulated by carbon nanotubesStructure of Lennard-Jones nanowires encapsulated by carbon nanotubes 下载免费PDF全文
Molecular dynamics simulations have been performed to investigate the structures of Lennard-Jones (LJ) nanowires (NWs) encapsulated in carbon nanotubes (CNTs). We find that the structures of NWs in a small CNT only adopt multi-shell motifs, while the structures of NWs in a larger CNT tend to adopt various motifs. Among these structures, three of them have not been reported previously. The phase boundaries among these structures are obtained regarding filling fractions, as well as the interaction between NWs and CNTs. 相似文献
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利用多巴胺(DA)中的儿茶酚基团能与金属有机骨架晶体(MOFs)中金属离子螯合的原理,以ZIF-67为模板,经DA蚀刻-自聚合形成具有孔洞结构的聚多巴胺(PDA)壳层,制备了磁性-MOFs-PDA(Fe3O4@Z67D)新型材料。多种表征手段验证了材料的形貌、结构和性能。新型材料具有亲水性的表面、纳米级的孔径,以及良好的磁响应,被用作磁固相萃取吸附剂。结合高效液相色谱分析手段,建立了萃取检测亚甲蓝(MB)和结晶紫(CV)两种阳离子染料的新方法。在最优的萃取和色谱分析条件下,MB和CV的线性范围分别为0.5~200 μg/L和0.01~50 μg/L,检出限分别为0.04 μg/L和0.008 μg/L,对两种染料的富集因子分别为777和688。新型材料重复使用10次,其萃取性能未见发生变化。该方法成功应用于检测淡水鱼养殖用水中痕量的MB和CV,加标回收率为82.0%~109.0%,RSD低于2.9%。 相似文献
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