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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
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Clay nanotube-metal core/shell catalysts for hydroprocesses
Aleksandr Glotov1, Anna Vutolkina, Aleksey Pimerzin
1Gubkin Russian State University of Oil and Gas (NRU), 65 Leninsky Prospekt, Moscow, 119991, Russia. glotov.a@gubkin.ru.
Chemical Society Reviews
|July 9, 2021
Summary
Halloysite nanotubes serve as efficient, eco-friendly supports for metal catalysts in hydroprocessing. Their unique structure enables stable, highly dispersed catalytic particles, advancing heterogeneous catalysis in oil refining and petrochemistry.
Area of Science:
- Materials Science
- Catalysis
- Nanotechnology
Background:
- Catalytic hydroprocesses are vital in oil refining and petrochemistry.
- Designing efficient catalysts requires optimizing metal nanosystems and their supports.
- Heterogeneous catalysts are increasingly preferred over homogeneous ones, driving research into nanoscale porous materials.
Purpose of the Study:
- To summarize advances in halloysite-based composite materials for hydroprocesses.
- To focus on the selective binding of metal particles onto halloysite supports.
- To explore halloysite's potential for designing stable and efficient nanocatalysts.
Main Methods:
- Analysis of halloysite nanotube morphology and size selection.
- Characterization of physicochemical properties of pristine and modified halloysite (acid-etched, silanized).
- Investigation of metal cluster formation methods and their localization within or on halloysite.
Main Results:
- Halloysite nanotubes provide a stable mesoporous support, leading to highly dispersed metal catalytic particles with minimized leaching.
- The tubular structure and tunable surface chemistry of halloysite allow for selective modification and controlled loading of active metal sites.
- Halloysite-based core-shell catalysts demonstrate potential for efficient hydroprocessing applications.
Conclusions:
- Halloysite nanotubes are a cost-effective, abundant, and eco-friendly material for developing advanced heterogeneous catalysts.
- Architectural design of halloysite-metal composites offers a promising strategy for enhancing catalyst stability and efficiency.
- Further research into halloysite modification and metal particle integration can unlock new avenues in catalytic hydroprocessing.
