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| 1 | 高分子自组装制备多壁纳米炭管(英文)显示文摘通过将聚硅氮烷和聚乙烯吡咯烷酮在一定条件下混合,经过分子聚合及惰性气体保护下高温热处理,在SiCN陶瓷基体表面生长短的多壁碳纳米管。所制备的碳纳米管长度短,在~500 nm范围,直径在~30 nm,并且具有完整的管状结构。多壁纳米炭管形成机理是聚乙烯吡咯烷酮在溶液中自组装形成的高分子管状结构,再经高温炭化而成。 | 陈永 李成 涂进春 安立南 | 2012 | 新型炭材料2012，27，6： | 2 |
| 2 | A facile and green synthetic approach toward fabrication of starch-stabilized magnetite nanoparticles显示文摘A facile and green synthetic approach for fabrication of starch-stabilized magnetite nanoparticles was implemented at moderate temperature. This synthesis involved the use of iron salts, potato starch,sodium hydroxide and deionized water as iron precursors, stabilizer, reducing agent and solvent respectively. The nanoparticles(NPs) were characterized by UV-vis, PXRD, HR-TEM, FESEM, EDX, VSM and FT-IR spectroscopy. The ultrasonic assisted co-precipitation technique provides well formation of highly distributed starch/Fe_3O_4-NPs. Based on UV–vis analysis, the sample showed the characteristic of surface plasmon resonance in the presence of Fe_3O_4-NPs. The PXRD pattern depicted the characteristic of the cubic lattice structure of Fe_3O_4-NPs. HR-TEM analysis showed the good dispersion of NPs with a mean diameter and standard deviation of 10.68 4.207 nm. The d spacing measured from the lattice images were found to be around 0.30 nm and 0.52 nm attributed to the Fe3O4 and starch, respectively. FESEM analysis confirmed the formation of spherical starch/Fe_3O_4-NPs with the emission of elements of C, O and Fe by EDX analysis. The magnetic properties illustrated by VSM analysis indicated that the as synthesized sample has a saturation magnetization and coercivity of 5.30 emu/g and 22.898 G respectively.Additionally, the FTIR analysis confirmed the binding of starch with Fe_3O_4-NPs. This method was cost effective, facile and eco-friendly alternative for preparation of NPs. | Nurul Hidayah Abdullah Kamyar Shameli Ezzat Chan Abdullah Luqman Chuah Abdullah | 2017 | Chinese Chemical Letters2017，28，7： | 1 |
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