Journal of Solid State Electrochemistry

, Volume 22, Issue 6, pp 1941–1948 | Cite as

Enhanced catalytic activity of ternary Pd-Ni-Ir nanoparticles supported on carbon toward formic acid electro-oxidation

Original Paper


Aiming to further promote the performance of PdNi for formic acid electro-oxidation (FAEO), ternary Pd-Ni-Ir/C nanocatalyst was synthesized via an ethylene glycol-assisted NaBH4 reduction process. The physical characterizations show that the PdNiIr nanoparticles with a small mean size are well dispersed on carbon support. The electrochemical measurements demonstrate that the PdNiIr/C catalyst exhibits the highest activity for FAEO. The onset and peak potential of FAEO on PdNiIr/C is about 70 mV more negative than that on the Pd/C and PdNi/C catalysts. The mass activity of Pd in PdNiIr/C at 0.14 V is 2830 mA mg−1Pd, which is about 1.65, 1.82, and 2.2 times as high as that of PdIr/C, PdNi/C, and Pd/C, respectively. The enhancement should be attributed to the electronic effect and bi-functional mechanism.


Formic acid Electro-oxidation Nanoparticles PdNiIr/C catalyst 



This work is supported by the Key Research and Development Projects in Sichuan Province (2017GZ0397), the Science and Technology Project of Chengdu (2015-HM01-00531-SF), the National Natural Science Foundation of China (21306119), and the Outstanding Young Scientist Foundation of Sichuan University (2013SCU04A23).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Integrated Traditional Chinese and Western Medicine, West China HospitalSichuan UniversityChengduPeople’s Republic of China
  2. 2.College of Materials Science and EngineeringSichuan UniversityChengduPeople’s Republic of China

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