Tailoring the Electronic Metal‐Support Interaction of Single‐Atom Platinum Catalysts for Boosting Water‐Gas Shift Reaction
Source abstract
Abstract
Abstract Exploring electronic metal‐support interaction (EMSI) in heterogeneous catalysis is significant for developing efficient supported metal catalysts. Herein, single‐atom Pt1/CeO2 catalysts possessing diverse local structures and coordination environments are convincingly fabricated via ALD technique for the water‐gas shift reaction (WGSR). The PtCe‐2 catalyst obtained after two ALD cycles is primarily composed of Pt1 coordinated to five oxygen atoms (Pt5c), while the PtCe‐6 catalyst is dominated by Pt3c configuration. The PtCe‐2 catalyst exhibits an H2 production rate ≈2.4 times higher than that of PtCe‐6 at 250 °C. The combined experimental and theoretical studies demonstrate that the atomic location‐induced strong EMSI weakens the adsorption strength of CO on Pt5c, subsequently lowering the energy barrier for the crucial intermediate step of CO conversion. This study elucidates the effect of EMSI in the WGSR, and provides new insights for the rational design of efficient single‐atom catalysts.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Electrocatalysts for Energy Conversion · Nanomaterials for catalytic reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Research Center for Environmental Material and Pollution Control Technology National Engineering Laboratory for VOCs pollution Control Material & Technology University of Chinese Academy of Sciences Beijing 101408 P.R. China
Beijing Key Laboratory for VOCs Pollution Prevention and Treatment Technology and Application of Urban Air Beijing Municipal Research Institute of Eco‐Environmental Protection Beijing 100037 P. R. China
Funding
National Natural Science Foundation of China · National Key Research and Development Program of China · China Postdoctoral Science Foundation · Fundamental Research Funds for the Central Universities
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