Properties of Mn0.4Zn0.6Fe2O4 and Mn0.6Zn0.4Fe2O4 as Nanocatalyst for Ammonia ProductionPoppy Puspitasari, Andoko Andoko, Heru Suryanto, Puput Risdanareni and Januarti Jaya EkaputriMATEC Web Conf., 97 (2017) 01029DOI: https://doi.org/10.1051/matecconf/20179701029