Hard X-ray absorption spectroscopy를 이용한 에너지 소재 분석 기술

• 영문명: Energy material characterization techniques with using hard X-ray absorption spectroscopy
• 발행기관: 한국세라믹학회
• 저자명: 이세찬(Sechan Lee)
• 간행물 정보: 『세라미스트』제28권 제2호, 310~321쪽, 전체 12쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2025.06.30

국문 초록

Hard X‑ray absorption spectroscopy (Hard XAS) offers element‑specific bulk sensitivity combined with sub‑second time resolution, making it an indispensable tool for next‑generation energy materials. This article outlines the fundamentals of X-ray Absorption Near Edge Structure and Extended X-ray Absorption Fine Structure, details a reproducible Athena–Artemis workflow for calibration, background subtraction, χ(k) extraction, and FEFF‑based fitting, and highlights operando Hard XAS studies that unravel redox and structural dynamics in lithium‑ion battery electrodes and water‑splitting catalysts. Representative cases demonstrate how Hard XAS decouples capacity fade from voltage decay in Li‑rich layered oxides, stabilises Ruδ+ sites during high‑current acidic Oxygen evolution reaction, and guides interface engineering through real‑time redox mapping. Finally, we discuss forthcoming advances—including fourth‑generation synchrotrons, lab‑scale high‑harmonic sources and machine‑learning fitting engines—that will enable autonomous closed‑loop materials discovery.

목차

1. 서론

2. 본론

3. 결론

REFERENCE

키워드

Energy material characterization EXAFS XANES X-ray absorption spectroscopy