[2G01-08] Functional materials(1)

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)Japanese

[2G04] Probing Local Ordering of the Silicate Framework Prior to Zeolite Crystallization by Resonant X-ray Emission Spectroscopy

○Kakeru Ninomiya¹, Koki Itamoto¹, Ayaka Ogihara¹, Ralph Ugalino², Zhong Yin¹, Hisao Kiuchi³, Yoshihisa Harada⁴, Toshiyuki Yokoi⁵, Maiko Nishibori¹ (1. Tohoku University, 2. National Institutes for Quantum Science and Technology, 3. National Institute for Materials Science, 4. The University of Tokyo, 5. Institute of Science Tokyo)

Keywords:

Zeolite,X-ray Emission Spectroscopy,Crystallization

Zeolites are important materials for petrochemical catalysis, adsorption, and separation; however, how disordered silicate precursors develop into ordered framework structures during the early stages of crystallization remains insufficiently understood. In this talk, I will present our direct observation of the ordering process of O–Si–O–Si torsion angles before the appearance of well-defined crystalline structures in X-ray diffraction, using O 1s X-ray emission spectroscopy combined with theoretical calculations.