Construction of a Pt‐CeOₓ Interface for the Electrocatalytic Hydrogen Evolution Reaction
Abstract
AbstractThe creation of metal‐metal oxide interfaces is an important approach to fine‐tuning catalyst properties through strong interfacial interactions. This article presents the work on developing interfaces between Pt and CeOx that improve Pt surface energetics for the hydrogen evolution reaction (HER) within an alkaline electrolyte. The Pt‐CeOx interfaces are formed by depositing size‐controlled Pt nanoparticles onto a carbon support already coated with ultrathin CeOx nanosheets. This interface structure facilitates substantial electron transfer from Pt to CeOx, resulting in decreased hydrogen binding energies on Pt surfaces, and water dissociation for the HER, as predicted by the density functional theory (DFT) calculations. Electrochemical testing indicates that both Pt specific activity and mass activity are improved by a factor of 2 to 3 following the formation of Pt‐CeOx interfaces. This study underscores the significance and potential of harnessing robust interfacial effects to enhance electrocatalytic reactions.
Copyright and License
© 2024 The Authors. Advanced Functional Materials published byWiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the originalwork is properly cited, the use is non-commercial and no modificationsor adaptations are made
Acknowledgement
S.Y., S.K. and Y.C. contributed equally to this work. This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division (DE-SC00234430). This research used resources of the Center for Functional Nanomaterials (CFN) and beamlines 7-BM (QAS) of the National Synchrotron Light Source II (NSLS-II) at Brookhaven National Laboratory (Contract No. DE-SC0012704 and DE-SC0012653), U.S. DOE Office of Science User Facilities. S. Z. acknowledges support from the Sloan Research Fellowship (Grant No. FG-2022-18460). S.K. acknowledges support from the Resnick Sustainability Institute at Caltech. This work used Stampede3 at Texas Advanced Computing Center through allocation DMR160114 from the Advanced Cyberinfrastructure Coordination Ecosystem: Services & Support (ACCESS) program, which is supported by National Science Foundation grants #2138259, #2138286, #2138307, #2137603, and #2138296. K.H. and X. L. acknowledge the support from the American Chemical Society Petroleum Research Fund under Grant No. 62493-DNI10, as well as the use of facilities and instrumentation at the University of California Irvine Materials Research Institute, supported in part by the National Science Foundation Materials Research Science and Engineering Center program through the University of California Irvine Center for Complex and Active Materials (DMR-2011967).
Data Availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Conflict of Interest
The authors declare no conflict of interest.
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Additional details
- ISSN
- 1616-3028
- United States Department of Energy
- DE‐SC00234430
- United States Department of Energy
- DE‐SC0012704
- United States Department of Energy
- DE‐SC0012653
- Alfred P. Sloan Foundation
- FG‐2022‐18460
- Resnick Sustainability Institute
- National Science Foundation
- DMR160114
- National Science Foundation
- OAC-2138259
- National Science Foundation
- OAC-2138286
- National Science Foundation
- OAC-2138307
- National Science Foundation
- OAC-2137603
- National Science Foundation
- OAC-2138296
- American Chemical Society
- Petroleum Research Fund 62493-DNI10
- National Science Foundation
- DMR-2011967
- Caltech groups
- Resnick Sustainability Institute