Abstract

In this research a high yield, homogenous and fast bottom-up wet-chemical method has been carried out for the synthesis of platinum nanocrystal (Pt-NC) and up to micron size (Pt-M). After synthesis of the particles, surface plasmon resonance (SPR), ultra violet (UV) spectrum, size, shape, and composition were measured for each set. Platinum nanocrystal attained by preventing particles to grow directly after reduction of Pt⁺⁴ to Pt⁰. Pt-NC constructed by statistic repulsion of ionic surfactant surrounded nanocrystals. The final size of the Pt-NC found to be 3.8 ± 0.72 nm. Before sonication treatment, particle size of 705.2 ± 80.3 nm was achieved. After sonication, particle size increased to 1046.1 ± 199 nm. Particles were formed in a controllable way, homogenous and mono-disperse in size and shape. It is confirmed that sonication except for the sharpness of the spectrum did not alter the peak wavelengths. The suggested synthesis method enabled cost-effective concrete control over size, shape, concentration, and time of the synthesis.

Graphic abstract

中文翻译：

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简单的化学反应可将铂纳米晶体的受控合成驱动至微米大小

摘要

在这项研究中，已经进行了高产率，均匀且快速的自下而上的湿化学方法，用于合成铂纳米晶体（Pt-NC）和最大微米尺寸（Pt-M）。合成颗粒后，对每组测量表面等离子体共振（SPR），紫外线（UV）光谱，尺寸，形状和组成。通过防止Pt ⁺⁴还原为Pt ⁰后直接生长颗粒而获得的铂纳米晶体。通过统计排斥离子表面活性剂包围的纳米晶体构建的Pt-NC。发现Pt-NC的最终尺寸为3.8±0.72nm。在超声处理之前，获得了705.2±80.3 nm的粒径。超声处理后，粒径增加到1046.1±199 nm。颗粒以可控制的方式形成，尺寸和形状均匀且单分散。可以确认的是，除了光谱的清晰度外，超声处理并没有改变峰值波长。建议的合成方法可以对合成的尺寸，形状，浓度和时间进行经济有效的混凝土控制。

图形摘要