In situ X-ray diffraction studies on micropore filling

The molecular level picture of micropore filling mechanism in carbon micropores was summarized and the necessity of the structural study on molecules confined in carbon micropores with in situ X-ray diffraction is described. The detailed explanation of in situ X-ray diffraction technique for adsorption studies is given. The effectiveness of the in situ X-ray diffraction for elucidation of structures of molecules filled in micropore is shown for CCl ₄ , water, and alcohol molecules. In situ X-ray diffraction studies shows the presence of organized structure inherent to an adsorbate molecule, although only adsorption measurement cannot distinguish the molecular state different from the bulk liquid.