“p-Co3O4 supported heterojunction Carbon Nanofibers for Ammonia gas sensor applications”, J Mater NanoSci, vol. 9, no. 1, pp. 61–67, Feb. 2022, Accessed: Apr. 28, 2024. [Online]. Available: https://pubs.thesciencein.org/journal/index.php/jmns/article/view/289