Wearable membranes from zirconium-oxo clusters cross-linked polymer networks for ultrafast chemical warfare agents decontamination
作者:Litao Ma、Jiamin Xie、Xiaoshan Yan、Zhiwei Fan、Heguo Li、Lin Lu、Likun Chen、Yi Xin、Panchao Yin
DOI:10.1016/j.cclet.2021.10.059
日期:2022.6
The urgent need for immediate personal protection against chemical warfare agents (CWAs) spurs the requirement on robust and highly efficient catalytic systems that can be conveniently integrated to wearable devices. Herein, as a new concept for CWA decontamination catalyst design, sub-nanoscale, catalytically active zirconium-oxo molecular clusters are covalently integrated in flexible polymer network
迫切需要立即针对化学战剂 (CWA) 进行个人防护,这激发了对能够方便地集成到可穿戴设备的强大且高效的催化系统的需求。在此,作为 CWA 去污催化剂设计的新概念,亚纳米级的催化活性锆-氧代分子簇作为交联剂共价整合在柔性聚合物网络中,以充分暴露催化位点以及坚固的框架结构。所获得的膜催化剂表现出高溶胀率,水含量为 84 wt%,因此,对 CWA、soman (GD) ( t 1/2 = 5.0 min) 和 CWA 模拟物甲基的快速水解表现出准均相催化活性对氧磷 (DMNP) ( t 1/2 = 8.9 分钟)。同时,由于交联键的共价性质和聚合物链的高柔韧性,该膜具有良好的机械强度和韧性,可以承受高气压的影响,并对 CO 2和 O 2表现出高渗透性,使其能够在具有身体舒适度的集体/个人防护材料领域的扩展应用。