Jingye Chen, Yi Wu, Jiayi Zhou, Xinyu Dai, Miaohuan Deng, Xinqiang Liu, Chenyang Zhao, Hailong Fan, Jun Yu, Huiqi Li, Lei Zhang
Ir doping promotes lattice hydrogen incorporation into Pd ultrathin nanosheets, modulating the Pd electronic structure and interfacial hydrogen-bond network to accelerate the acidic hydrogen oxidation reaction. The optimized catalyst shows high activity, excellent stability, and good performance in proton exchange membrane fuel cells.