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Attractive In Situ Self‐Reconstructed Hierarchical Gradient Structure of Metallic Glass for High Efficiency and Remarkable Stability in Catalytic Performance
Author(s) -
Jia Zhe,
Wang Qing,
Sun Ligang,
Wang Qi,
Zhang LaiChang,
Wu Ge,
Luan JunHua,
Jiao ZengBao,
Wang Anding,
Liang ShunXing,
Gu Meng,
Lu Jian
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201807857
Subject(s) - materials science , catalysis , delocalized electron , chemical engineering , oxide , nanotechnology , noble metal , amorphous solid , electronic structure , metal , atomic units , chemical physics , porosity , composite material , computational chemistry , crystallography , metallurgy , organic chemistry , chemistry , engineering , physics , quantum mechanics
Metallic glass (MG), with the superiorities of unique disordered atomic structure and intrinsic chemical heterogeneity, is a new promising and competitive member in the family of environmental catalysts. However, what is at stake for MG catalysts is that their high catalytic efficiency is always accompanied by low stability and the disordered atomic configurations, as well as the structural evolution, related to catalytic performance, which raises a primary obstacle for their widespread applications. Herein, a non‐noble and multicomponent Fe 83 Si 2 B 11 P 3 C 1 MG catalyst that presents a fascinating catalytic efficiency while maintaining remarkable stability for wastewater remediation is developed. Results indicate that the excellent efficiency of the MG catalysts is ascribed to a unique atomic coordination that causes an electronic delocalization with an enhanced electron transfer. More importantly, the in situ self‐reconstructed hierarchical gradient structure, which comprises a top porous sponge layer and a thin amorphous oxide interfacial layer encapsulating the MG surface, provides matrix protection together with high permeability and more active sites. This work uncovers a new strategy for designing high‐performance non‐noble metallic catalysts with respect to structural evolution and alteration of electronic properties, establishing a solid foundation in widespread catalytic applications.