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Nano Research

, Volume 12, Issue 2, pp 323–329 | Cite as

1-Naphthol induced Pt3Ag nanocorals as bifunctional cathode and anode catalysts of direct formic acid fuel cells

  • Xian Jiang
  • Yang Liu
  • Jiaxin Wang
  • Yufei Wang
  • Yuexin Xiong
  • Qun Liu
  • Naixu Li
  • Jiancheng ZhouEmail author
  • Gengtao FuEmail author
  • Dongmei Sun
  • Yawen TangEmail author
Research Article

Abstract

Developing highly efficient bifunctional cathode and anode electrocatalysts is very important for the large-scale application of direct formic acid fuel cells. However, the high-cost and poor CO-tolerance ability of the most commonly used Pt greatly block this process. To increase the utilization efficiency and extend bifunctional properties of precious Pt, herein, coral-like Pt3Ag nanocrystals are developed as an excellent bifunctional electrocatalyst through a facile one-pot solvothermal method. The formation mechanism of Pt3Ag nanocorals has been elaborated well via a series of control experiments. It is proved that 1-naphthol serving as a guiding surfactant plays a key role in the formation of high-quality nanocorals. Thanks to the unique coral-like structure and alloy effects, the developed Pt3Ag nanocorals present significantly enhanced electrocatalytic properties (including activity, stability and CO-tolerance ability) towards both the cathodic oxygen reduction and anodic formic acid oxidation, as compared with those of commercial Pt black and Pt-based nanoparticles. The present synthetic method can also be extended to fabricate other bimetallic electrocatalysts with unique morphology and structure.

Keywords

Pt3Ag alloy nanocorals bifunctional electrocatalyst oxygen reduction reaction formic acid oxidation 

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Notes

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. 21576139, 21875112, 21576050 and 51602052), Jiangsu Provincial Natural Science Foundation of China (No. BK20150604), National and Local Joint Engineering Research Center of Biomedical Functional Materials, and Priority Academic Program Development of Jiangsu Higher Education Institutions.

Supplementary material

12274_2018_2218_MOESM1_ESM.pdf (2.5 mb)
1-Naphthol induced Pt3Ag nanocorals as bifunctional cathode and anode catalysts of direct formic acid fuel cells

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© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Chemistry and Chemical EngineeringSoutheast UniversityNanjingChina
  2. 2.Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials ScienceNanjing Normal UniversityNanjingChina
  3. 3.School of Chemical and Biomedical EngineeringNanyang Technological UniversitySingaporeSingapore

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