Abstract
The effect of nitrogen doped bamboo-like carbon nanotubes (N–CNTs) on the properties of supported platinum (0.2 and 1 wt %) catalysts in formic acid decomposition for hydrogen production was studied. It was shown that both impregnation and homogeneous precipitation routes led to the formation of electron-deficient platinum stabilized by pyridinic nitrogen sites of the N–CNTs. The electron-deficient platinum species strongly enhanced the activity and selectivity of the Pt/N–CNTs catalysts when compared to the catalysts containing mainly metallic platinum nanoparticles. A comparison of bamboo-like N–CNTs and herring-bone nitrogen doped carbon nanofibers (N–CNFs) as the catalyst support allowed us to conclude that the catalytic properties of supported platinum are determined by its locally one-type interaction with pyridinic nitrogen sites of the N–CNTs or N–CNFs irrespective of substantial structural differences between nanotubes and nanofibers.
Original language | English |
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Article number | 3976 |
Journal | Energies |
Volume | 12 |
Issue number | 20 |
DOIs | |
Publication status | Published - 18 Oct 2019 |
Keywords
- Carbon nanofibers
- Carbon nanotubes
- Formic acid
- Hydrogen
- Nitrogen doped
- Platinum
- formic acid
- THERMAL-STABILITY
- FORMIC-ACID
- ACTIVE-SITES
- DEPOSITION
- nitrogen doped
- PLATINUM
- NANOMATERIALS
- hydrogen
- FUTURE
- NITRIDE
- carbon nanofibers
- NANOPARTICLES
- platinum
- carbon nanotubes
- CLUSTERS