Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 403, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2020.123987
Keywords
Co@NC microflowers; Nanoneedles; Reduction of nitroaromatic compounds; NaBH4; Interface
Categories
Funding
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [17KJB530011]
- Jiangsu Planned Projects for Postdoctoral Research Funds [2019K093]
- Science and Technology Innovation Foundation of Yangzhou University [2019CXJ037]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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The study introduces a new Co@NC-MF catalyst with a hierarchical flower-like architecture, demonstrating enhanced catalytic performance in the reduction of nitroaromatic compounds through synergistic catalysis.
Developing highly efficient and cost-effective catalyst with tuned microstructure holds great promise in the reduction of nitroaromatic compounds under mild reaction conditions. Herein, we report a new Co@NC-MF catalyst with a fascinating hierarchical flower-like architecture in situ assembled from uniform Co@NC nano needles, which can function as a favorable platform for the efficient reduction of nitroaromatic compounds in the presence of NaBH4. In addition with the structural advantage, the characterization and experimental results demonstrate the enormous advantage of interfacial synergistic catalysis in enhancing the catalytic performance. The outside electron-rich N-doped carbon layer as Lewis basic sites and the inside Co nanoparticles are responsible for the adsorption of 4-nitrophenol (4-NP) and generation of active hydrogen species, respectively. This work contributes to the construction of well-integrated composites with well-balanced interface synergy to boost the catalytic performance in various heterogeneous reactions.
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