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  • 學位論文

在室溫下以化學還原法製備奈米錫粒子之研究

Synthesis of Tin Nanoparticles by Chemical Reduction Method in Room Temperature

指導教授 : 鄭俊麟

摘要


隨著科技的進步,奈米材料在日常生活的應用也越來越廣,奈米粒子的製備方式也越來越多。然而在奈米材料中,錫算是這幾年才開始被研究的材料,很少有文獻會提到有關奈米錫粒子的研究。近幾年來,不論是半導體製程中的封裝技術、金屬導電膜及鋰電池中的電極添加物等,已都是奈米錫粒子的應用範圍。因此,如何成功的製備出奈米錫粒子也就更顯得重要了。 然而,傳統上用來製備奈米錫粒子的方法不外乎化學氣相沉積法、機械研磨法或是模版法製作,所需的成本高、過程複雜,且不易達到奈米級的大小。本實驗利用新的化學還原劑,利用化學還原法,在常溫下,不需藉助模板,也不需施加外力,即可在短時間內製備出奈米級的錫粒子,相較於其他合成方法,擁有製備簡易、合成時間短,粒徑大小易控制等優點。 最後本論文以SEM及TEM等分析儀器驗證所合成出之粒子呎吋,可達到10 nm左右,並且以DSC、ESCA、XRD及EDS等分析儀器證明其成份確實為錫。

並列摘要


Owing to advances in nanotechnology, metallic nanoparticles have been applied to several fields, including optics, semiconductors and optoelectronics, etc. Applications of tin nanoparticles are in the preparation of metal films, as lithium alloy anodes for rechargeable batteries, as precursors to tin oxides nanoparticles for use as gas sensors, and as solder materials for ball grid array. In this study, we report a novel room-temperature solution phase reduction of SnCl2 with a novel reduction agent, which can afford colloidal tin nanoparticles with a diameter less than 20 nm. The particles are analyzed by using x-ray powder diffraction, transimission electron microscopy, scanning electron microscopy, electron spectroscopy for chemical analysis, energy dispersion spectroscopy, and differential scanning calorimetry.

並列關鍵字

tin chemical reduction nanoparticles

參考文獻


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