Dual spatial region flexible chlorine based ionic hypercrosslinked polymer synergistically adsorb formaldehyde and carbon dioxideRuimeng Wang, Yawei Xie, Zhongxing Zhao and Zhenxia ZhaoE3S Web Conf., 603 (2025) 01032DOI: https://doi.org/10.1051/e3sconf/202560301032