화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU))
권호 26권 1호
발표분야 학생우수논문발표(박사과정)
제목 Single step synthesis both of modification toporous structure and directly applying catalyst for NH3-SCR​
초록 Hexagonal-BN is generally known asstable material from RT to 1000℃ at air atmosphere, and has high chemicalstability. It is, therefore, used in fields to need thermal and chemical stability,and porous structure obviously gives a variety of properties in ceramic. Inthis work, modification to porous structure can be confirmed and intentionallyobtained from h-BN by catalytic etching of TMOs below 1000℃. Catalytic etchingoccurs during calcination which can be confirmed via intersection of betweentheoretical Ellingham diagram and experimental TGA. At that temperature, TMOsmove in a specific preferred direction, and porous h-BN thereby has stuckparticles. Existence of highly dispersed TMOs in final product makes itpossible to be used as selective catalytic reduction (SCR) catalysts, one ofgreen technologies, through only single step process. We can confirm theenhanced performance of deliberately etched catalyst in both of powder andgreen-body states, honeycomb and coated type.
저자 이명진1, 정보라1, 이금연1, 예보라1, 조승호2, 김홍대1
소속 1한국생산기술(연), 2울산과학기술원
키워드 Catalytic etching; hexagonal boron nitride (h-BN); porous structure; selective catalytic reduction (SCR)
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