Bibliometric analysis for research trends and hotspots in heat and mass transfer and its management of proton exchange membrane fuel cells

•Bibliometric analysis of heat and mass transfer and its management in PEMFC was carried out.•The number of annual publications has experienced a process of increasing, decreasing and increasing.•J Power Sources, J Electrochem Soc and Appl Energy are the authoritative journal in this field.•Water and heat management needs to be further optimized.