Conjugate Microporous Polymer-Derived Conductive Porous Carbon Nanoparticles with Narrow Pore-Size Distribution for Electromagnetic Interference Shielding
Yingzhi Jiao, Zhimin Ye, Fan Wu, Aming Xie, Wei Zhao, Lipeng Wu, Xufei Zhu, Wei Dong
Abstract
Conductive porous carbon nanoparticles (PCNs) with narrow pore-size distribution are considered as a versatile platform for material design and multiapplications, but their fabrication still remains a challenge so far. In this work, a series of conductive PCNs were prepared from their conjugate microporous polymer (CMP) precursors via a controlled calcination strategy. It is found that the chemical structures of CMP precursors have great influence on the micro–nano morphology, pore distribution, and electrical conductivity of these CMP-derived PCNs. The prepared PCN shows high extent of sp2 carbon, narrow pore-size distribution, high conductivity, and high electromagnetic interference (EMI) shielding performance. High electrical conductivity accompanied with a narrow-distribution porous structure is considered as the main reason for the high-performance EMI shielding of PCNs. This research greatly expands the application scope of porous carbon nanomaterials derived from organic polymer precursors.