Early View 2402155
Research Article

Large-Scalable CO-Tolerant Ultrathin PtTe2 Nanosheets for Formic Acid Oxidation

Jingliang Bao

Jingliang Bao

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

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Haoran Sun

Haoran Sun

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 China

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Wei Yan

Wei Yan

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

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Siyu Liu

Siyu Liu

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

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Wei Xu

Wei Xu

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016 China

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Jiantao Fan

Jiantao Fan

Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055 China

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Changhong Zhan

Corresponding Author

Changhong Zhan

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

E-mail: [email protected]; [email protected]

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Wei Liu

Wei Liu

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 China

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Xiaoqing Huang

Xiaoqing Huang

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005 China

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Nanjun Chen

Corresponding Author

Nanjun Chen

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005 China

E-mail: [email protected]; [email protected]

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First published: 03 February 2025
Citations: 1

Abstract

Developing large-scale platinum (Pt) alloys that simultaneously exhibit high formic acid oxidation reaction (FAOR) activity and robust CO tolerance remains a significant challenge for practical fuel cell applications. Here, a facile and universal in situ synthesis approach is presented to create ultrathin platinum-tellurium nanosheets on carbon support (PtTe2 NSs/C), which enables high CO tolerance and FAOR activity while achieving the massive production of PtTe2 NSs/C. Specifically, the 10-gram-scale PtTe2 NSs/C achieves exceptional specific activity and mass activity of 14.3 mA cm−2 and 3.6 A mgPt−1, respectively, which are 52.9 and 22.5 times greater than those of commercial Pt/C. Moreover, the 10-gram-scale PtTe2 NS/C exhibits significantly higher FAOR stability than pristine Pt NSs/C and commercial Pt/C. Detailed mechanism and computational investigations collectively reveal that the integration of Te into Pt lattices enhances the utilization of Pt while constructing high-density unsaturated “Pt-Te sites” on the surface of PtTe2 NSs/C, conferring high CO tolerance to PtTe2 NSs/C and thus substantially enhancing the FAOR activity. This work contributes to providing a universal method for scaling up next-generation high-performing FAOR catalysts.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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