Abstract
Three-dimensional cubic ordered mesoporous carbons with tunable pore sizes have been synthesized by using cubic Ia3d mesoporous KIT-6 silica as the hard template and boric acid as the pore expanding agent. The prepared ordered mesoporous carbons were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and nitrogen adsorption–desorption analysis. The results show that the pore sizes of the prepared ordered mesoporous carbons with three-dimensional cubic structure can be regulated in the range of 3.9–9.4 nm. A simplified model was proposed to analyze the tailored pore sizes of the prepared ordered mesoporous carbons on the basis of the structural parameters of the silica template.
Highlights
In recent years, ordered mesoporous carbons (OMCs) with uniform pore sizes, high surface areas, and large pore volumes have been of wide interest for applications inY
We demonstrated that the aforementioned synthesis pathway could be generalized to prepare OMCs with various structures and symmetries using different mesoporous silicas as templates
The cubic structures of the silica and carbon products were further demonstrated by the representative Transmission electron microscopy (TEM) images of KIT-6 and OMC-4 shown in Fig. 2c and d, respectively
Summary
In recent years, ordered mesoporous carbons (OMCs) with uniform pore sizes, high surface areas, and large pore volumes have been of wide interest for applications inY. Abstract Three-dimensional cubic ordered mesoporous carbons with tunable pore sizes have been synthesized by using cubic Ia3d mesoporous KIT-6 silica as the hard template and boric acid as the pore expanding agent. The results show that the pore sizes of the prepared ordered mesoporous carbons with three-dimensional cubic structure can be regulated in the range of 3.9–9.4 nm.
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