https://scholar.dgist.ac.kr/handle/20.500.11750/207 2026-10-12T12:47:40Z https://scholar.dgist.ac.kr/handle/20.500.11750/60942 Title: Li2x Al1+x P1-x Cl8: A Halide Lithium-Ion Conductor Family Derived from the AlPCl8Framework Author(s): Seo, Hyeonjin; Shin, Seungyong; Manjon-Sanz, Alicia; Hong, Seung-Tae Abstract: Halide solid electrolytes are promising candidates for high-voltage all-solid-state batteries due to their high anodic stability. Here, we report the synthesis and characterization of lithium-containing halide solid electrolytes, Li2x Al1+x P1-x Cl8, based on the recently identified orthorhombic Pbcm structure of AlPCl8. Among the nominal compositions characterized by PXRD (x = 0.15, 0.2, 0.333, and 0.5), the x = 0.15 and 0.20 phases retain the AlPCl8-derived framework as single-phase products. The materials were prepared via stoichiometric mechanochemical synthesis followed by low-temperature annealing. Structural analysis using joint Rietveld refinements of X-ray and neutron diffraction data confirmed distorted tetrahedral interstitial lithium sites that interconnect AlCl4 and (P/Al)Cl4 polyhedra. Bond-valence site energy calculations reveal crystallographically accessible Li+ migration pathways with low local migration barriers of similar to 0.3 eV. The x = 0.20 composition exhibits an ionic conductivity of 6.3 & times; 10-7 S cm-1 at room temperature, with a negligible electronic conductivity of 1.9 & times; 10-10 S cm-1 and an apparent activation energy of similar to 1.6 eV. Despite the modest ionic transport, linear sweep voltammetry indicates a high oxidation onset at similar to 7.8 V vs In/In-Li, demonstrating high anodic stability among halide electrolytes. The large discrepancy between the calculated local barriers and the experimentally measured activation energy suggests that macroscopic Li+ transport is governed by factors beyond the intrinsic local hopping barrier. These results establish the AlPCl8-derived framework as a useful structural platform for exploring chloride-based Li+ conductors with accessible migration pathways and high oxidative stability. 2026-08-31T15:00:00Z https://scholar.dgist.ac.kr/handle/20.500.11750/60919 Title: 고분자 해중합용 조성물, 고분자의 해중합 방법 및 폐플라스틱의 재활용 방법 Author(s): 박치영; 최경현 https://scholar.dgist.ac.kr/handle/20.500.11750/60916 Title: 젤 기반 센서의 제조 방법 및 이를 이용하여 제조된 젤 기반 센서 Author(s): 박치영; 최경현 https://scholar.dgist.ac.kr/handle/20.500.11750/60913 Title: 구리 주석 합금을 포함하는 이산화탄소 전환 촉매 및 이의 제조방법 Author(s): 권우석; 고수현; 남대현 Abstract: 본 발명은 중공 탄소섬유; 및 상기 중공 탄소섬유의 표면에 위치하는 구리-주석 합금 입자;를 포함하고, 상기 구리-주석 합금 입자의 구리 : 주석 몰 비는 1 내지 8 : 1인, 이산화탄소 전환 촉매 및 이의 제조방법에 관한 것으로, 간단한 방법으로 구리-주석 합금 입자의 조성을 제어함에 따라, 포름산 뿐만 아니라 메탄에 대한 선택도를 향상시킬 수 있다.