X-ray spectroscopy study of hydroxyl-based liquid solutions

• Main Authors: Yi-Sheng Liu, 劉亦昇
• Other Authors: Chin-Ling Chang
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/49938983266603449031

博士 === 淡江大學 === 物理學系博士班 === 100 === The research of electronic structure in liquid solution under microscopic view is crucial to the understanding of solution behaviors and its properties. For neat liquid water at ambient condition, the intermolecular chemical bonds (Hydrogen bonds) are strongly related to the physical, chemical and structural properties of liquid water. Such an important and fundamental substance have been used for long time, however the understanding under microscopic view are still far from complete such as locally structural geometry, ion-ion interactions or charge immigration in electrolyte. Not to mention the consensus of the behaviors from different experimental technique. The difficulties of the soft x-ray spectroscopic experiment apparatus in Taiwan for liquid systems, leading to the study on the electronic structural researches of liquid systems are impossible. Hence, in this thesis, we are performing the research of electronic structure utilizing soft X-ray Absorption Spectroscopy (XAS) and soft X-ray emission spectroscopy (XES) in hydroxyl-based liquid solutions. Hydroxyl-based solutions include neat liquid water, NaOH solutions, Alcohols and hydrated Sodium Cobaltite. By the similarity of hydroxyl in these systems, to understanding the correlation between electronic structure and HB behavior or local structural information utilizing XAS and XES. All of the soft x-ray spectroscopies were performed at Advanced Light Source (ALS), Berkeley National Laboratory in CA, USA.