A Facile Route for the Preparation of Superparamagnetic Porous Carbons
A Facile Route for the Preparation of Superparamagnetic Porous Carbons
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DOI：
10.1021/cm052695e
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发表时间：
2006-02
影响因子：
8.6
通讯作者：
A. Fuertes;P. Tartaj
中科院分区：
文献类型：
--
作者：
A. Fuertes;P. Tartaj
本文提出了一种新颖而简单的合成策略，用于制造随机分散在多孔碳中的超顺磁性纳米磁体。该方法基本上可以认为是在活性炭孔隙形成的受限体积内进行的热解。这种磁性多孔材料具有较大的表面积（高达1600 m2 g-1），高孔隙体积（高达1.0 cm3 g-1），以及由可接近的孔隙组成的孔隙度。这种方法的另一个优点是它的通用性，它允许获得具有可调磁性的复合材料。通过这种方法，有可能获得可以很容易地被外部磁场操纵的超顺磁复合材料。
We present here a novel and simple synthetic strategy for fabricating superparamagnetic nanomagnets randomly dispersed in porous carbons. The method can be basically considered as a pyrolysis performed inside the restricted volume formed by the pores of an activated carbon. Such magnetic porous materials exhibit large surface areas (up to 1600 m2 g-1), high pore volumes (up to 1.0 cm3 g-1), and a porosity made up of accessible pores. An additional advantage of this method is its versatility, which allows composites with tunable magnetic properties to be obtained. In this way, it is possible to obtain superparamagnetic composites that can be easily manipulated by an external magnetic field.