H 2 In Situ Inducing Strategy on Pt Surface Segregation Over Low Pt Doped PtNi 5 Nanoalloy with Superhigh Alkaline HER Activity

Zhang, Cong; Liang, Xin; Xu, Ruinian; Dai, Chengna; Wu, Bin; Yu, Gangqiang; Chen, Biaohua; Wang, Xiaolei; Liu, Ning

doi:10.1002/adfm.202008298

H 2 In Situ Inducing Strategy on Pt Surface Segregation Over Low Pt Doped PtNi 5 Nanoalloy with Superhigh Alkaline HER Activity

Surface segregation constitutes an efficient approach to enhance the alkaline hydrogen evolution reaction (HER) activity of bimetallic PtxNiy nanoalloys. Herein, a new strategy is proposed by utilizing the small gas molecule of H2 as the structure directing agent (SDA) to in situ induce Pt surfac…