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中文摘要：
报道了在200℃和自气压溶剂热条件下，以聚乙烯吡咯烷酮（PVP）为稳定剂，乙二醇（EG）为溶剂和还原剂，通过还原氯金酸获得大量六边形或三角形微米级孪晶金盘．利用扫描电子显微镜（SEM）观察到清晰的金盘孪晶界面．透射电子显微镜（TEM）和相应的选区电子衍射（SAED）表征也提供了进一步的实验证据．此外，X射线光电子能谱（XPS）实验证实，PVP分子吸附在这种金盘的表面．这表明PVP分子对六边形或三角形金颗粒的形成和进一步演化起到了重要的作用．基于上述实验和表征结果，提出了一种金盘从纳米级到微米级的演化机理，用于阐述不同形状金盘的可能生长过程．
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