화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2016년 가을 (10/19 ~ 10/21, 대전컨벤션센터)
권호 22권 2호, p.2202
발표분야 재료
제목 Preparation and characterization of ZnFe2O4 heterostructures as ultra-high sensitive electrode for formaldehyde chemical sensor
초록 Zinc ferrite (ZnFe2O4) heterostructures were synthesized through low temperature solvothermal process. The bulk electrode of ZnFe2O4 was prepared in the form of pellet and coated with graphene for the effective detection of toxic formaldehyde chemical. The phase purity and composition of ZnFe2O4 were confirmed by elemental analysis such as Raman Spectroscopy and X-Ray diffraction studies. From room temperature photoluminescence (PL) spectroscopy, the synthesized ZnFe2O4 exhibited prominent band-edge ultraviolet (UV) and weak visible emission (violet), indicated the optical properties of ZnFe2O4. The electrochemical revealed that the prepared ZnFe2O4 heterostructures based electrode showed the sensing response toward formaldehyde. The enhanced electrochemical performances could be attributed to the synergistic effect between ZnFe2O4 and graphene and the observed results demonstrated ZnFe2O4 heterostructures as promising probe candidate for the fabrication of highly sensitive and selective chemical sensors.
저자 김은비, 사디아아민, 신형식, 장광수, 모흐드 나짐, 압둘라, 서형기
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