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Journal of Cluster Science

, Volume 30, Issue 6, pp 1641–1647 | Cite as

The Role of Cu in Adsorption of O2 and CO Molecules on the Pt12Cu Cluster

  • Guoqing Wang
  • Xueling LeiEmail author
Original Paper
  • 124 Downloads

Abstract

Using density functional theory method, we have studied O2 and CO molecules adsorption on the Pt13 and Pt12Cu clusters, respectively. Analysis of the adsorption energies, O–O bond length, and natural bond orbital (NBO) charge indicates that the copper doping plays an important role in the enhanced reduction of O2 molecule in low temperature fuel cells (LTFCs). On the other hand, contrary to the adsorption of O2 molecule, the calculated adsorption energies, NBO charge and molecular orbitals show that the copper doping significantly weakens the adsorption of the CO molecule, indicating that the Cu-doped Pt catalyst is resistant to CO poisoning in the LTFCs. Our studies provide an important clue to understand the catalytic mechanism of platinum copper alloy catalysts in the LTFCs.

Keywords

Platinum copper alloy catalysts Oxygen reduction reaction CO poisoning Low temperature fuel cells Density functional theory 

Notes

Acknowledgements

The authors thank the National Natural Science Foundation of China (Grant Nos. 11404149, 11764019) for financial support of the current work.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Physics, Laboratory of Computational Materials PhysicsJiangxi Normal UniversityNanchangChina

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