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Self-assembled 3D flower-like Ni2+–Fe3+ layered double hydroxides and their calcined products

机译:自组装的3D花状Ni2 + –Fe3 +层状双氢氧化物及其煅烧产物

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摘要

This paper describes a facile solvothermal method to synthesize self-assembledthree-dimensional (3D) Ni2+–Fe3+ layered double hydroxides (LDHs). Flower-like Ni2+–Fe3+ LDHs constructed of thin nanopetals were obtained using ethylene glycol (EG) as a chelating reagent and urea as a hydrolysis agent. The reaction mechanism and self-assembly process are discussed. After calcinating the as-prepared LDHs at 450 °C in nitrogen gas, porous NiO/NiFe2O4 nanosheets were obtained. This work resulted in the development of a simple, cheap, and effective route for the fabrication of large area Ni2+–Fe3+ LDHs as well as porous NiO/NiFe2O4 nanosheets.
机译:本文描述了一种容易的溶剂热方法,以合成自组装三维(3D)Ni2 + -Fe3 +层状双氢氧化物(LDHs)。使用乙二醇(EG)作为螯合剂和尿素作为水解剂,可以得到由薄纳米花瓣构成的花状Ni2 + –Fe3 + LDH。讨论了反应机理和自组装过程。在氮气中于450°C下煅烧制得的LDH后,获得多孔NiO / NiFe2O4纳米片。这项工作为开发大面积Ni2 + –Fe3 + LDHs以及多孔NiO / NiFe2O4纳米片提供了一种简单,廉价且有效的途径。

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