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In situ production of titanium dioxide nanoparticles in molten salt phase for thermal energy storage and heat-transfer fluid applications

机译:原位生产熔融盐相中的二氧化钛纳米颗粒用于热能存储和传热流体应用

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摘要

In this study, TiO2 nanoparticles (average particle size 16 nm) were successfully produced in molten salt phase and were showed to significantly enhance the specific heat capacity of a binary eutectic mixture of sodium and potassium nitrate (60/40) by 5.4 % at 390 °C and 7.5 % at 445 °C for 3.0 wt% of precursors used. The objective of this research was to develop a cost-effective alternate method of production which is potentially scalable, as current techniques utilized are not economically viable for large quantities. Enhancing the specific heat capacity of molten salt would promote more competitive pricing for electricity production by concentrating solar power plant. Here, a simple precursor (TiOSO4) was added to a binary eutectic mixture of potassium and sodium nitrate, heated to 450 °C, and cooled to witness the production of nanoparticles.
机译:在这项研究中,在熔融盐相中成功生产了TiO2纳米颗粒(平均粒径为16nm),并显示出可在390℃下将钠和硝酸钾的二元共晶混合物(60/40)的比热显着提高5.4%。 °C和445°C时的7.5%,占所用前体的3.0 wt%。这项研究的目的是开发一种经济有效的替代生产方法,该方法具有潜在的可扩展性,因为所采用的当前技术在经济上无法实现大批量生产。通过集中太阳能发电厂,提高熔盐的比热容将促进电力生产更具竞争力的价格。在这里,将简单的前体(TiOSO4)添加到钾和硝酸钠的二元共晶混合物中,加热到450°C,并冷却以观察纳米颗粒的产生。

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