This invention involves creating a cobalt-nickel bimetallic nanocatalyst supported on g-C3N4 for selective hydrogenation. It efficiently converts α,β-unsaturated carbonyl compounds and nitroarenes into desired products under mild conditions (100°C, 7 atm H2). The catalyst, characterized by its uniform particle size and stability, can be reused up to five times without losing efficacy. It provides an eco-friendly and cost-effective alternative to traditional precious metal catalysts, avoiding toxic by-products and handling issues. The process is simpler and uses readily available materials, making it suitable for pharmaceutical, polymer, and fine chemical industries.
Figure (1) X-ray Diffraction (XRD) data of (a) C3N4 and (b) CoNi@g‐C3N4. (c) low resolution and (d) high resolution TEM images of CoNi@g‐C3N4 nanocatalyst. (e) High angle annular dark field image. EDS elemental mapping of Ni, N and Co are shown in (f), (g), (h), respectively; (2) X-ray Photoelectron Spectroscopy (XPS) analysis of (a) Co and (b) Ni in CoNi@g‐C3N4.
Current methods for selective hydrogenation of α,β-unsaturated carbonyl compounds and nitroarenes rely heavily on expensive and toxic precious metal catalysts like Pt, Pd, and Ru. These methods often require harsh reaction conditions, are difficult to handle due to their pyrophoric nature, and pose environmental hazards. Additionally, achieving chemoselectivity in the presence of other reducible functional groups remains a significant challenge.
- Selective hydrogenation of α,β-unsaturated carbonyl compounds and nitroarenes: This allows targeting specific functional groups without affecting others.
- Catalyst isolation by simple filtration: Facilitates easy recovery and reuse of the catalyst.
- High Reusability/Recyclability: The catalyst maintains excellent catalytic activity for up to five successive runs without needing reactivation, indicating high stability and economic viability.
- Simple and Eco-Friendly Preparation: The catalyst preparation process is straightforward, involves non-hazardous chemicals, and is stable under ambient conditions (non-pyrophoric).
- Cost-effective materials like urea and melamine: Reduces production costs and uses readily available resources.
- Stable under ambient conditions: The catalyst remains effective without requiring special storage or handling. Operates under significantly milder conditions compared to prior art. Very low hydrogen pressure (6-8 atm, preferably 7 atm) and Moderate temperatures (90-110°C, preferably 100°C). This translates to reduced energy consumption, simpler equipment requirements, and enhanced safety.
As this invention is primarily directed to a process , no physical prototype has been developed at this stage. The process remains at a conceptual.
The patent has not been pursued further by any party. The intellectual property remains available for commercialization or further research.This presents an opportunity for industry players interested in exploring its potential or for students/researchers seeking to develop the concept into a more advanced prototype or application.
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Promotes the use of environmentally friendly and non-hazardous catalysts. Reduces the reliance on expensive and toxic precious metal catalysts in industrial processes. Enhances the efficiency of chemical synthesis in pharmaceutical and fine chemical industries. Contributes to safer working conditions due to the non-pyrophoric nature of the catalyst.
Pharmaceutical, Polymer, Fine Chemicals, Biomass Valorization, Petrochemical
Geography of IP
Type of IP
202221024257
415723