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Tip sonication을 이용한 SnO2 마이크로 입자 표면 개질 및 Ti 나노 입자 장식을 통한 H2S 가스 감지 특성 향상
신지연,김찬규,박지명,홍능레,황정윤,최명식 한국센서학회 2024 센서학회지 Vol.33 No.2
In this study, the H2S gas sensing characteristics were evaluated using surface-modified SnO2 microparticles by tip sonication. The surface-modified SnO2 microparticles were synthesized using the following sequential process. First, bare SnO2 microparticles were synthesized via a hydrothermal method. Then, the surfaces of bare SnO2 microparticles were modified with Ti nanoparticles during tip sonication. The sensing characteristics of SnO2 microparticles modified with Ti were systematically investigated in the range of 100–300o C, compared with the bare SnO2 microparticles. In this study, we discuss in detail the improved H2S sensing characteristics of SnO2 microparticles via Ti nanoparticle modification.