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硝酸誘導金納米帶的晶種法制備及光譜表征
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甘肅省中青年科技基金(0711RJYA003)


Nitric Acid Induced Seed-Mediated Growth of Gold Nanobelts and Their Spectroscopic Study
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    摘要:

    采用硝酸誘導的晶種法制備金單晶納米帶，利用TEM、HRTEM和UV-vis技術對產物進行形貌、結構表征和吸收性能分析。發(fā)現產物的形態(tài)有納米帶、納米片和納米顆粒，但以納米帶為主。納米帶為面心立方結構金單晶。UV-vis顯示，產物的微弱吸收峰位于550 nm和強吸收峰位于975 nm，分別起源于納米帶橫軸直徑與長度方向的表面等離子體共振。金納米帶的生長機制進是，小尺寸納米片在硝酸誘導作用下通過表面偶極作用進行自組裝

    Abstract:

    Gold single-crystal nanobelts were synthesized by a nitric-acid-induced seed-mediated growth method. The morphologies and structures of the products were characterized by TEM and HRTEM; the absorption property was analyzed by UV-vis spectrum. TEM observation shows that nanobelts are dominant morphology with perfect fcc single-crystal structure and there are some nanoplates and nanoparticles. The UV-vis spectra reveal a strong longitudinal surface plasma resonance (SPR) band and a weak transverse SPR band centered at ~975 nm and ~550 nm, respectively. The growth mechanism of the nanobelts is the self-assembly of the adjacent nanoplates through surface dipole-dipole interaction with nitric acid induction

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宋玉哲,董佳敏,劉 斌,王運福,李旭東,劉國漢.硝酸誘導金納米帶的晶種法制備及光譜表征[J].稀有金屬材料與工程,2010,39(4):711~714.[Song Yuzhe, Dong Jiamin, Liu Bin, Wang Yunfu, Li Xudong, Liu Guohan. Nitric Acid Induced Seed-Mediated Growth of Gold Nanobelts and Their Spectroscopic Study[J]. Rare Metal Materials and Engineering,2010,39(4):711~714.]
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  • 收稿日期:2009-04-30
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