CoFe2O4/rGO nanocomposite: Synthesis and enhanced ammonia gas sensing properties at room temperature

Autor: Marimuthu Ganesan, Bharathi Ganapathi, Palanisamy Govindasamy, Balaji Parasuraman, Paramasivam Shanmugam, Rajender Boddula, Ramyakrishna Pothu, Pazhanivel Thangavelu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Results in Chemistry, Vol 7, Iss , Pp 101342- (2024)
Druh dokumentu: article
ISSN: 2211-7156
DOI: 10.1016/j.rechem.2024.101342
Popis: In this study, CoFe2O4 and CoFe2O4/rGO samples were synthesized using co-precipitation and wet impregnation methods, respectively, and their sensing capabilities were assessed for ammonia gas detection at room temperature. The formation of the CoFe2O4/rGO nanocomposite was thoroughly examined through various analytical techniques, revealing its enhanced properties. Notably, the CoFe2O4/rGO nanocomposite exhibited significantly higher sensitivity compared to pure CoFe2O4, with a calculated sensitivity value of 1.098. The material also demonstrated rapid response and recovery times of 61 s and 143 s, respectively, for a 100-ppm ammonia gas concentration at room temperature. These findings highlight the potential of the CoFe2O4/rGO nanocomposite for efficient and sensitive gas sensing applications.
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