Oxygen Reduction Reaction Activity of Nanocolumnar Platinum Thin Films by High Pressure Sputtering

Abstract Self-supported nanocolumnar Pt:Ni thin films (TFs) with varying Pt:Ni atomic ratios and Pt mass loadings were produced on a microporous layer (MPL)-like surface composed of carbon particles by high pressure sputtering and examined as oxygen reduction reaction (ORR) electrocatalysts for polymer electrolyte membrane fuel cells. Cauliflower-like microstructures were observed from scanning electron microscopy imaging. Various Pt:Ni atomic ratios were obtained by simply changing the relative deposition power between Pt and Ni source and investigated by X-ray diffraction and quartz crystal microbalance analysis. Electrochemical characterization of the Pt:Ni-TF/MPL-like-layer/glassy-carbon samples was conducted through benchtop cyclic voltammetry and rotating disk electrode measurements. The electrochemically active surface area (ECSA) was found to be between 22-42 m2/g for different Pt:Ni atomic ratios. Lower Pt mass loadings exhibited a higher ECSA and the catalytic activity of all Pt:Ni ratios increased with the increase in Pt mass loading. The ORR activity of the Pt:Ni-TFs increased in the order of 3:1 < 1:1 < 1:3 with exhibiting a specific activity of 1781 µA/cm2 and mass activity of 0.66 A/mg for the Ni-rich film with 1:3 ratio. The catalytic performance of Pt:Ni-TFs were higher than traditional high surface area carbon supported Pt nanoparticles, elemental Pt nanorods, and Pt-Ni nanorods.

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Eliminating the need for craftsmanship: Facile and precise determination of oxygen reduction reaction activity by spraying catalyst ink on rotating disk electrode

Journal of Electroanalytical Chemistry ◽

10.1016/j.jelechem.2021.115115 ◽

2021 ◽

Vol 886 ◽

pp. 115115 ◽

Cited By ~ 1

Author(s):

Masanori Inaba ◽

Yuji Kamitaka ◽

Kensaku Kodama

Keyword(s):

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Rotating Disk ◽

Reduction Reaction ◽

Precise Determination ◽

Rotating Disk Electrode ◽

Disk Electrode ◽

Oxygen Reduction Reaction Activity

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Greatly promoted oxygen reduction reaction activity of solid catalysts by regulating the stability of superoxide in metal-O2 batteries

Science China Materials ◽

10.1007/s40843-020-1519-9 ◽

2020 ◽

Vol 64 (4) ◽

pp. 870-879

Author(s):

Hua Wang ◽

Liangliang Liu ◽

Xiao Liu ◽

Yu Jia ◽

Peng Zhang ◽

...

Keyword(s):

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Reduction Reaction ◽

Oxygen Reduction Reaction Activity ◽

Solid Catalysts ◽

The Stability

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Correction: Fast prediction of oxygen reduction reaction activity on carbon nanotubes with a localized geometric descriptor

Physical Chemistry Chemical Physics ◽

10.1039/d1cp90025k ◽

2021 ◽

Vol 23 (7) ◽

pp. 4454-4454

Author(s):

Kunran Yang ◽

Jeremie Zaffran ◽

Bo Yang

Keyword(s):

Carbon Nanotubes ◽

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Chem Phys ◽

Reduction Reaction ◽

Oxygen Reduction Reaction Activity ◽

Fast Prediction ◽

Phys Chem Chem Phys

Correction for ‘Fast prediction of oxygen reduction reaction activity on carbon nanotubes with a localized geometric descriptor’ by Kunran Yang et al., Phys. Chem. Chem. Phys., 2020, 22, 890–895, DOI: 10.1039/C9CP04885E.

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Ultrafine Pt–Ni nanoparticles in hollow porous carbon spheres for remarkable oxygen reduction reaction catalysis

Dalton Transactions ◽

10.1039/d1dt00647a ◽

2021 ◽

Author(s):

Xian-Kai Wan ◽

Gabor Samjeské ◽

Hirosuke Matsui ◽

Chaoqi Chen ◽

Satoshi Muratsugu ◽

...

Keyword(s):

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Porous Carbon ◽

Reduction Reaction ◽

Ni Nanoparticles ◽

Carbon Spheres ◽

Oxygen Reduction Reaction Activity ◽

Porous Carbon Spheres

Small-sized Pt–Ni nanoparticles were synthesized into hollow porous carbon spheres (HPCS) under molecule assistance. Pt–Ni nanoparticle/HPCS prepared in presence of 2,2′-Dipyridylamine showed excellent oxygen reduction reaction activity/durability.

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