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NiFe2Ox@C微波辅助燃烧合成及其吸附脱硫性能研究

Microwave-assisted combustion synthetized NiFe2Ox@C Composites for Adsorptive Desulfurization

中文摘要英文摘要

采用微波辅助溶液燃烧法合成了铁镍氧化物/碳复合材料,通过 X射线衍射(XRD) 、交变梯度磁强计和透射电子显微镜进行了表征,考察了材料对模拟燃油的吸附脱硫性能。研究发现材料中金属氧化物颗粒约为20 nm左右,金属-碳呈现体相分布的结构,具有铁磁性,室温饱和磁化强度可达到59.6 emu/g。该材料具有较强的吸附脱硫性能,在二苯并噻吩-正辛烷二元组份体系中,饱和吸附量可达26.9 mgS/g,甲苯可产生一定的竞争吸附。

NiFe2Ox@C composites have been obtained by means of a microwave-assisted combustion synthesis mediated. The structure of the materials were characterized by X-ray diffraction, transmission electron microscopy and alternating gradient magnetometer. The results show that the size of the metal oxide is about 20 nanometers with mainly spinel structure and solid bulk phase distribution characters in carbon. At room temperature, magnetic hysteresis loops at an applied field of 10 kOe show small coercivities, indicating the ferromagnetic behavior of the as-prepared NiFe2Ox@C composite with saturation magnetization of 59.6 emu/g. The resulting materials were found to be a promising candidate for adsorption desulfurization of dibenzothiophene (DBT) with a maximum adsorption capacity of 26.9 mgS/g from DBT-n-octane mixture.

江剑、谢晓霞、单佳丽、赵松林

材料科学化学电化学工业

液相吸附脱硫燃油

adsorption/liquiddesulfurizationfuels

江剑,谢晓霞,单佳丽,赵松林.NiFe2Ox@C微波辅助燃烧合成及其吸附脱硫性能研究[EB/OL].(2015-04-07)[2025-08-05].http://www.paper.edu.cn/releasepaper/content/201504-122.点此复制

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