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善良的Man金蟲 (小有名氣)
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[求助]
求助,幫忙翻一下摘要,寫的不太好,順便幫忙潤色下,謝謝
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本論文旨在探索納米材料硫化鎳的制備方法,研究其微結(jié)構(gòu)、生長機(jī)理和光學(xué)性質(zhì)。利用大環(huán)多胺輔助液相法合成均勻硫化鎳納米花。并對其微結(jié)構(gòu)、反應(yīng)形成機(jī)理及光學(xué)性質(zhì)進(jìn)行了探討。 首先,依據(jù)文獻(xiàn)合成水溶性固態(tài)大環(huán)多胺六甲基-1,4,8,11-四氮環(huán)十四-4,11-二烯(CT),在CT輔助下液相法合成均勻硫化鎳納米花。用 X-射線衍射(XRD)、X-射線光電子能譜(XPS)、掃描電子顯微鏡(SEM)、透射電子顯微鏡(TEM)和選區(qū)電子衍射(SAED)對樣品的結(jié)構(gòu)、成份和形貌進(jìn)行了表征。結(jié)果顯示,硫化鎳納米花的尺寸大多在5.5-6.5μm,由直徑為160-350nm,長至2μm的納米棒組成,且這些納米棒是沿平面生長的單晶。其次,時(shí)間演化和對比實(shí)驗(yàn)提供并確認(rèn)了納米花形成是擴(kuò)散限制聚集機(jī)理(DLA),這種機(jī)理可能控制了不同的納米結(jié)構(gòu)。同時(shí)實(shí)驗(yàn)結(jié)果說明花狀微結(jié)構(gòu)強(qiáng)烈地依賴于反應(yīng)條件,比如反應(yīng)物和CT的濃度。另外,光學(xué)研究表明,晶體具有不完整性的存在。 這種方法打開了一條硫化鎳材料形貌生成新的途徑,很可能作為一種普適的合成方法用來構(gòu)筑其他的具有新奇形貌和復(fù)雜形式的金屬硫族化合物半導(dǎo)體微納材料。 |
至尊木蟲 (著名寫手)
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This paper was aimed at exploring preparation methods of nickel sulfide nano-materials and investigating its microstructures,growth mechanism and optical property at the same time. Homogeneous nickel sulfide nanoflower was synthesized based on macrocyclic polyamine assisted liquid method, the microstructures,growth mechanism and optical property of which were discussed.(中文第一段兩句話可以組合一下,有點(diǎn)重復(fù)啰嗦的趕腳 ) |

至尊木蟲 (著名寫手)
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Firstly, water-soluble macrocyclic polyamine hexamethyl-1,4,8,11-tetraazacyclotridecyl -4,11-diene(CT) was synthesized on the basis of the literature to assist the liquid method to prepare homogeneous nickel sulfide nanoflower. The structure, composition and morphology of the sample was charactered by XRD, XPS, SEM, TEM and SAED. The results showed that nickel sulfide nanoflower, whose size was distributed in 5.5-6.5μm, was composed by nanorod with diameter was 160-350nm and length was 2μm, a single crystal that growed along the plane. Next, the diffusion limited aggregation mechanism (DLA)of nanoflower formation, which might control different nanostructures, was provided and comfirmed by time evolution and contrast experiment. Meanwhile, the experimental results showed that flower-like microstructure depended strongly on reaction conditions, such as reactant and CT concentration. Furthermore, optical studies have shown that crystal has the existance of imperfection. This method opened a new way of material morphology generated of nickel sulfide, and might be used as a universal synthetic method to construct metal chalcogenide compounds semiconductor micro-nano material with novel morphology and complicated form. |

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