The paper entitled “Recent advances in fuel cells based propulsion systems for unmanned aerial vehicles” collaborated by Prof. Chih-Yung Wen and Dr Liang An was awarded the 2019 Highly Cited Review Paper of Applied Energy, which is a peer-reviewed academic journal with an impact factor of 8.848 and a ranking of 6/143 (Top 3.8%) in “Engineering, Chemical” Subject Category in 2019 JCR Science Edition.