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Optimizing surface active sites via burying single atom into subsurface lattice for boosted methanol electrooxidation
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Journal Article
Optimizing surface active sites via burying single atom into subsurface lattice for boosted methanol electrooxidation
2025
Overview
The precise fabrication and regulation of the stable catalysts with desired performance still challengeable for single atom catalysts. Here, the Ru single atoms with different coordination environment in Ni
3
FeN lattice are synthesized and studied as a typical case over alkaline methanol electrooxidation. The Ni
3
FeN with buried Ru atoms in subsurface lattice (Ni
3
FeN-Ru
buried
) exhibits high selectivity and Faradaic efficiency of methanol to formate conversion. Meanwhile,
operando
spectroscopies reveal that the Ni
3
FeN-Ru
buried
exhibits an optimized adsorption of reactants along with an inhibited surface structural reconstruction. Additional theoretical simulations demonstrate that the Ni
3
FeN-Ru
buried
displays a regulated local electronic states of surface metal atoms with an optimized adsorption of reactants and reduced energy barrier of potential determining step. This work not only reports a high-efficient catalyst for methanol to formate conversion in alkaline condition, but also offers the insight into the rational design of single atom catalysts with more accessible surficial active sites.
Fine turning the local configuration of single atoms into substrate is challenging. Here, the authors report that burying single atoms into subsurface lattice of substrate can stimulate more surficial active sites and thus promote the overall catalytic performance in methanol electrooxidation.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
