沸石
材料科学
吸附
纳米尺度
化学工程
纳米技术
电子断层摄影术
催化作用
萃取(化学)
纳米
化学
有机化学
色谱法
物理化学
透射电子显微镜
扫描透射电子显微镜
复合材料
工程类
作者
Zhengxing Qin,Georgian Melinte,Jean‐Pierre Gilson,Maguy Jaber,Krassimir N. Bozhilov,Philippe Boullay,Svetlana Mintova,Ovidiu Ersen,Valentin Valtchev
标识
DOI:10.1002/anie.201608417
摘要
Zeolites are widely used in many commercial processes, mostly as catalysts or adsorbents. Understanding their intimate structure at the nanoscale is the key to control their properties and design the best materials for their ever increasing uses. Herein, we report a new and controllable fluoride treatment for the non-discriminate extraction of zeolite framework cations. This sheds new light on the sub-structure of commercially relevant zeolite crystals: they are segmented along defect zones exposing numerous nanometer-sized crystalline domains, separated by low-angle boundaries, in what were apparent single-crystals. The concentration, morphology, and distribution of such domains analyzed by electron tomography indicate that this is a common phenomenon in zeolites, independent of their structure and chemical composition. This is a milestone to better understand their growth mechanism and rationally design superior catalysts and adsorbents.
科研通智能强力驱动
Strongly Powered by AbleSci AI