Iron selenides with high capacity and excellent chemical properties have been considered as outstanding anodes for alkali metal-ion batteries. However, its further development is hindered by sluggish kinetics and fading capacity caused by volume expansion. Herein, a series of FeSe2 nanoparticles (NPs)-encapsulated carbon composites were successfully synthesized by tailoring the amount of Fe species through facile plasma engineering and followed by a simple selenization transformation process. Such a stable structure can effectively mitigate volume changes and accelerate kinetics, leading to excellent electrochemical performance. The optimized electrode ( FeSe2@C2) exhibits outstanding reversible capacity of 853.1 mAh g− 1 after 150 cycles and exceptional rate capacity of 444.9 mAh g− 1 at 5.0 A g− 1 for Li+ storage. In Na+ batteries, it possesses a relatively high capacity of 433.7 mAh g− 1 at 0.1 A g− 1 as well as good cycle stability. The plasma-engineered FeSe2@ C2 composite, which profits from synergistic effect of small FeSe2 NPs and carbon framework with large specific surface area, exhibits remarkable ions/electrons transportation abilities during various kinetic analyses and unveils the energy storage mechanism dominated by surface-mediated capacitive behavior. This novel cost-efficient synthesis strategy might offer valuable guidance for developing transition metal-based composites towards energy storage materials.

십이지장 벽내혈종은 70-75%는 복부 둔상에 의해 발생하며 그 외 항응고제 사용이나 혈액응고장애에 의한 자발적 출혈, 치료적 내시경 시술 후 합병증의 증례가 보고되었으나 췌장염에 의한 증례는 드물다. 75세 남자가 전복부통증, 오심, 구토로 내원하여 시행한 전산화 단층촬영과 상부 위장관 내시경에서 급성 알코올성 췌장염으로 인해 발생한 십이지장 벽내혈종이 관찰되었으며 내과적 보존 치료로 급성 췌장 염을 치료하여 벽내혈종까지 흡수되었다. 이는 급성 알코올 성 췌장염에서 십이지장 벽내혈종이 발생할 수 있으며 수술 적 치료를 시행하지 않고 내과적 보존적 치료를 초 치료로 시행해 볼 수 있는 임상경과를 보여주기에 저자들은 이를 보고한다.