Recent progress of direct ammonia fuel cells: from materials to transportation applications: Recent progress of direct ammonia fuel cells - Huang, Yi; Feng, Ji-Hong; Yi, Yue; Duan, Fei; Liu, Xin-Hua; Tian, Guang-Yu; Gu, Jun; Bian, Hai-Dong; Li, Jun (Rare Metals, 2025)