Co/multi-walled carbon nanotubes as highly efficient catalytic nanoreactor for hydrogen production from formic acid
| Autor: | A. S. Lisitsyn, Arcady V. Ishchenko, Vladimir I. Sobolev, Mariya A. Kazakova, Konstantin Yu. Koltunov, Alexander G. Selyutin |
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| Rok vydání: | 2020 |
| Předmět: |
Hydrogen
Renewable Energy Sustainability and the Environment Formic acid Energy Engineering and Power Technology Nanoparticle chemistry.chemical_element 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis law.invention Hydrogen carrier chemistry.chemical_compound Fuel Technology chemistry Chemical engineering law Hydrogen fuel 0210 nano-technology Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 45:19420-19430 |
| ISSN: | 0360-3199 |
| Popis: | Formic acid is well-recognized as safe and convenient hydrogen carrier. Development of active and cost-effective catalysts for formic acid to hydrogen conversion is important problem of hydrogen energy field. Herein, we report on new Co catalysts supported on oxidized multi-walled carbon nanotubes (MWCNTs), which demonstrate high efficiency in the gas-phase formic acid decomposition affording molecular hydrogen. Various parameters of the catalysts, Co loading, MWCNTs structure, and nanotubes treatment conditions, have been investigated in terms of their influence on the catalytic properties. The catalysts morphology has been characterized with a set of physicochemical methods. It is found that the catalytic activity of Co particles depends on their electronic state and location on the support. Co species located inside the MWCNTs channels are less active than Co species stabilized on the outer surface. An increase in the content of Co nanoparticles on the MWCNT outer surface leads to a higher catalytic activity. |
| Databáze: | OpenAIRE |
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