Open AccessSelectively Growing a Highly Active Interface of Mixed Nb–Rh Oxide/2D Carbon for Electrocatalytic Hydrogen Production
Author(s) -
Gao Yang,
Qi Lu,
He Feng,
Xue Yurui,
Li Yuliang
Publication year - 2022
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202104706
Subject(s) - bimetallic strip , catalysis , oxide , metal , hydrogen production , materials science , electrolyte , atom (system on chip) , carbon fibers , hydrogen , electrocatalyst , chemical engineering , nanotechnology , inorganic chemistry , chemistry , electrochemistry , electrode , computer science , metallurgy , biochemistry , composite number , composite material , embedded system , engineering , organic chemistry
Tailorable electron distribution of the active sites is widely regarded as the key issue to boost the catalytic activity and provide mechanistic insights into the structure–property–performance relationship. Here, a selective metal atom in situ growth strategy to construct highly active interface of mixed metal atom with different Nb y RhO x species on sp‐/sp 2 ‐cohybridized graphdiyne (Nb y RhO x /GDY) is reported. With this innovative idea implemented, experimental results show that the asymmetric electron distribution and the variation of coordination environment of bimetallic species significantly improve the electrocatalytic activity of Nb y RhO x /GDY. Optimal hydrogen evolution reaction (HER) activity is achieved at the Nb/Rh ratio of 0.23, exhibiting excellent HER activity with the small overpotentials of 14 and 10 mV at 10 mA cm −2 in alkaline and neutral electrolytes. The data show the strong potential for real‐system application of such catalysts, which outperform commercial Pt/C (20 wt%). These results shown in this study represent a platform for designing novel catalytic materials by selectively introducing metal atoms on different supports, which can be used as a general method extended to other catalytic systems.