Kyoto University · 화학
Asuman Çelik Küçük 교수의 연구실은 주로 실기금속 및 실기금속 유사 화합물 기반의 고체 전지 시스템, 특히 플루오르화물 이온을 운반하는 배터리(플루오르화물 셔틀 배터리)의 개발에 중점을 두고 있습니다. 특히 유기 용매에서의 플루오르화물 이온 전도성 향상, 실록세인 기반 액체 전해질의 활용, 그리고 이중층형 실세스퀴옥산(POSS)을 기반으로 한 고분자 및 광학-전기적 복합체의 합성과 특성화를 통해 안정성과 효율성을 동시에 확보하는 데 연구를 확장하고 있습니다. 이와 더불어, 수소 결합, 프로톤 전도성, 광발광 및 전기화학적 특성 제어를 통한 신소재 설계에도 기여하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Using lithium bis(oxalato)borate for a fluoride shuttle battery in organic solvents allowed a successful fluoride shuttle-based redox reaction.
To exploit the excellent safety as well as the thermal and electrochemical properties of siloxane-based liquid electrolytes, 2,2,4,4-tetramethyl-3,8,11,14,17-pentaoxa-2,4-disilaoctadecane was used as an electrolyte for the first time in a fluoride shuttle battery system.
As described in this paper, phosphonic-acid-containing double-decker-shaped polyhedral silsesquioxane (PHOS-DDSQ) was synthesized and the proton conductivity of the PHOS-DDSQ cast film was studied under humid and non-humid conditions. To synthesize PHOS-DDSQ, double-decker-shaped polyhedral silsesquioxane (DDSQ) was initially reacted with di(ethylene glycol) (DEG) vinyl ether using hydrosilylation reaction to attach four DEG units to one DDSQ (4DEG-DDSQ). Subsequently, a phosphate esterification
"Core-corona" type amphiphiles, which comprise double-decker-shaped POSSs (DDSQs) as the core and two or four di(ethylene glycol) (DEG) units as the coronae, have recently been reported to form a stable monolayer at the air-water interface. In this paper, another core-corona amphiphile, 2DEGNH-DDSQ, which has a urethane group at the end of the coronae, was synthesized to elucidate the effects of hydrogen bonding on monolayer properties. The surface pressure-area isotherm and Brewster angle micro
A double-decker silsesquioxane based bis(terpyridine) ruthenium(ii) complex (2Tpy/Ru-DDSQ), a member of the polyhedral oligomeric silsesquioxane (POSS) class, has been synthesized. Its structure has been characterized using comprehensive techniques such as nuclear magnetic resonance (<sup>1</sup>H NMR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and UV-visible spectroscopy. This work not only deals with the synthesis of 2Tpy/Ru-DDSQ but also provides the first comprehensive investigati
The effects of using low-cost inorganic fluoride salts (i.e., KF or NaF) as fluoride sources in fluoride shuttle batteries (FSBs) on the electrochemical compatibility of BiF 3 electrodes are investigated herein. The preparation of electrolytes containing saturated KF or NaF and 0.5 M 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (DiOB-Py) in G4 is described. For Py/NaF/G4, the discharge and charge reactions of BiF 3 were hindered because of the low solubility of NaF as well as the low
The potential effects of using lithium bis(oxalato)borate (LiBOB) as an electrolyte additive on the redox reactions of the positive bismuth fluoride (BiF 3 ) electrode were investigated in tetraglyme (G4) containing the anion acceptor (AA) triphenylboroxin (TPhBX). The electrolyte system, containing 0.06 M LiBOB, 0.5 M TPhBX, and saturated cesium fluoride (CsF) was prepared. The study also included a comparison with previously studied systems based on G4, which did not contain LiBOB but AA. The