Study of evolution of three-dimensional porous structure in zeolite-templated carbons

Abstract

this is from the web nothing original The atomic-scale and near-atomic-scale local structures during zeolite-templated carbon (ZTC) growth are not well understood. Our study provides insights into the structural evolution from the early to later stages, and finally, the completed stages of growth (i.e., carbon deposition inside the zeolite pores) of Ca-exchanged FAU zeolite-templated carbon using acetylene as a carbon source, through integrated differential phase contrast (iDPC) STEM. Furthermore, the combination of CO₂ and Ar adsorption techniques provides a full pore size distribution and provides values for the inner and outer surface areas and volumes of the hollow carbon structure. These findings can help to better understand the structure of ZTCs at the atomic and near-atomic levels, which can be leveraged to enhance ZTC performance in existing applications and potentially enable their use in new applications.