Scale-Up of the Polyol Process for Nanomaterial Synthesis

• 作者: Frédéric Schoenstein Ivaylo Hinkov Mongia Hosni Nassima Ouar Noureddine Jouini Samir Farhat Silvana Mercone
• 来源期刊: 材料科学与化学工程(英文)
• 学科: 化学
• 关键词: CFD Simulation POLYOL PROCESS NANOMATERIAL SYNTHESIS
• 年，卷（期）: clkxyhxgcyw_2014,（9）
• 页码范围: 1-11
• 页数: 11页
• 分类号: O6

摘要

Two classes of inorganic materials such as metallic nanowires and metal oxides nanorods were synthesized using the polyol process and scaled-up to produce macroscopic quantities. Scale-up strategy was successfully built by performing the synthesis in a 15 cm diameter, 4.5 litersvolume cylindrical tank using a straight paddle impeller and a Rushton turbine. The actual yield of the synthesis is ~45 grams per batch for zinc oxide nanorods and ~20 grams per batch for cobalt nickel nanowires. Under the same rotation speed, the aspect ratio of the produced nanowires and nanorods using the Rushton turbine impeller with radial flow patterns has shown a lower aspect ratio, nanoparticle size and polydispersity. This is attributed to the increase of the local dissipated energy as spatially calculated by computational fluid dynamics (CFD) that is proposed to design, optimize and scale-up the polyol process.