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Bio-waste chitosan-derived N-doped CNT-supported Ni nanoparticles for selective hydrogenation of nitroarenes.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 8/14/2020, Vol. 49 Issue 30, p10431-10440, 10p
- Publication Year :
- 2020
-
Abstract
- In this study, a facile method for the synthesis of leach proof and earth-abundant non-noble Ni nanoparticles on N-doped carbon nanotubes is reported. The catalyst was synthesized by an impregnation–carbonization method, wherein a Ni-chitosan complex upon carbonization in a 5% H<subscript>2</subscript>/N<subscript>2</subscript> atmosphere at 800 °C yielded Ni-containing N-doped CNTs. Chitosan served as a single source of carbon and nitrogen, and the nanotube growth was facilitated by the in situ formed Ni nanoparticles. The nanocatalyst was thoroughly characterized by several techniques; elemental mapping by SEM and TEM analysis confirmed the uniform distribution of Ni nanoparticles on the surface of N-doped CNTs with an average size in the range of 10–15 nm. The catalyst efficiently reduced a variety of nitroarenes (>99%) into their corresponding amines at a moderate pressure (5 bar) and a comparatively lower temperature (80 °C). Furthermore, the easy recovery of the catalyst using an external magnetic field along with high activity and easy recyclability makes the protocol eco-friendly. [ABSTRACT FROM AUTHOR]
- Subjects :
- NANOPARTICLES
HYDROGENATION
CATALYSTS
CARBON nanotubes
MAGNETIC fields
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 49
- Issue :
- 30
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 144917077
- Full Text :
- https://doi.org/10.1039/d0dt01708f