Yingjie Deng, Longhai Zhang, Jie Zheng, Dai Dang, Jiaxi Zhang, Xianrui Gu, Xue Yang, Weiquan Tan, Liming Wang, Long Zeng, Chao Chen, Tiejun Wang, Zhiming Cui
Pt-based intermetallic compounds (IMCs) are considered as a class of promising fuel cell electrocatalysts, owing to their outstanding intrinsic activity and durability. However, the synthesis of uniformly dispersed IMCs with small sizes presents a formidable challenge during the essential high-temperature annealing process. Herein, a facile and generally applicable VOx matrix confinement strategy is demonstrated for the controllable synthesis of ordered L10 -PtM (M = Fe, Co, and Mn) nanoparticles, which not only enhances the dispersion of intermetallic nanocrystals, even at high loading (40 wt%), but also simplifies the oxide removal and acid-washing procedures...
April 19, 2024: Small