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首页> 外文会议>TMS annual meeting exhibition >FABRICATION OF GOLD-PLATINUM NANOALLOY BY HIGH-INTENSITY LASER IRRADIATION OF SOLUTION
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FABRICATION OF GOLD-PLATINUM NANOALLOY BY HIGH-INTENSITY LASER IRRADIATION OF SOLUTION

机译：高强度激光辐照溶液制备金-铂纳米合金

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Gold-platinum (Au-Pt) solid solution nanoalloys were fabricated by high-intensity femtosecond laser irradiation of mixed solution of auric and platinum ions. Photo-absorption spectra of prepared solutions were measured by UV-visible spectrophotometer before and after irradiation. The fabricated particles were characterized by TEM and XRD. While two representative diffraction peaks are commonly observed between peak the positions of pure bulk gold and platinum for bulk because of a large immiscibility gap in a Au-Pt binary system, only a single diffraction peak was detected for single-nanometer sized Au-Pt nanoalloy particles fabricated by high-intensity laser irradiation of mixed solution of auric and platinum ions with the concentration of 5.0×10~(-4) M. This finding demonstrates that solid solution Au-Pt nanoalloys are successfully fabricated only by high-intensity laser irradiation of aqueous solution without any chemicals.
机译：金-铂（Au-Pt）固溶纳米合金是通过高强度飞秒激光辐照金和铂离子的混合溶液制成的。辐照前后，用紫外可见分光光度计测量所制备溶液的光吸收光谱。制备的颗粒通过TEM和XRD表征。尽管通常在峰之间观察到两个代表性的衍射峰，因为Au-Pt二元体系中存在较大的不混溶间隙，所以在块状纯金和铂的位置之间存在较大差异，但对于单纳米尺寸的Au-Pt纳米合金，仅检测到一个衍射峰高强度激光辐照浓度为5.0×10〜（-4）M的金和铂离子混合溶液制备的纳米粒子。这一发现表明，仅通过高强度激光辐照才能成功制备固溶体Au-Pt纳米合金不含任何化学药品的水溶液。

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