跨尺度梯级多孔三维规整碳结构的可控制备%Controllable Preparation of Cross-Scale Cascade Porous Three-Dimensional Regular Carbon Structure
河南省化工研究所有限责任公司
2026-03-12
3D打印 碳化 梯级孔隙 规整碳结构
梯级多孔碳材料可以增强传质、增大比表面积以及增加活性位点,在吸附、化工催化、电化学等方面具有广泛的应用.通过对树脂配制、3D打印、碳化与活化工艺的研究,实现了全尺度梯级多孔三维规整碳结构的高精度快速制备.157 μm以上的特征通过3D打印直接制备,1~1 000 nm的孔隙调控通过控制活化条件得以实现.在碳化步骤中,通过控制氮气通入时的温度(高于270℃),既实现了壁内1~100 μm的孔隙制备与调控,又实现了升温速率的提升.本研究为制备梯级多孔碳结构提供了一种低成本、高效且快速的方法,可提高(电)化学反应和吸附的效率和速率,减少输运阻力等.%Cascade porous carbon materials can enhance mass transfer,increase specific surface area and increase active sites.It has a wide range of applications in adsorption,chemical catalysis,and electro-chemistry and so on.Through the study of resin preparation,3 D printing,carbonization and activation process,the high-precision and rapid preparation of full-scale cascade porous three-dimensional structured carbon structure is realized.The features above 157 μm are directly prepared by 3D printing,and the pore control of 1~1 000 nm is achieved by controlling the activation conditions.In the carboniza-tion step,by controlling the temperature of nitrogen(higher than 270 ℃),not only the preparation and regulation of pores in the wall of 1~100 μm are realized,but also the heating rate is improved.This study provides a low-cost,efficient and fast method for the preparation of hierarchical porous carbon structures.Which can improve the efficiency and rate of(electrochemical)chemical reactions and ad-sorption,and reduce transport resistance.
