Green Synthesis of Palladium Nanoparticles and Their Catalytic Applications

Green synthesis of palladium nanoparticles harnesses biological materials—such as plant extracts, microorganisms and polysaccharides—to reduce palladium salts into nanometre-scale metallic particles under mild, eco-friendly conditions. Phytochemicals, proteins or microbial metabolites function as both reducing and stabilising agents, guiding nucleation, controlling particle size and preventing aggregation without the need for toxic reagents. By tuning reaction parameters (pH, temperature, concentration), researchers achieve well-defined shapes and sizes, which in turn influence surface area and active sites. These green-derived palladium nanocatalysts have demonstrated exceptional performance in key chemical transformations, including hydrogenation of nitroarenes, selective oxidation of alcohols, Suzuki–Miyaura cross-coupling and degradation of environmental contaminants. Their high surface-to-volume ratio and surface functionalisation from capping biomolecules enhance dispersion in aqueous media and facilitate recovery and reuse. Beyond conventional chemical synthesis, biogenic routes promise lower energy consumption, reduced waste generation and improved biocompatibility, positioning palladium nanoparticles as sustainable platforms for industrial and environmental catalysis. The interplay between green chemistry principles and nanotechnology underpins advances in scalable, low-toxicity manufacturing of palladium catalysts that address global demands for cleaner processes and resource-efficient production.

Research from Nature Portfolio

No recent Nature Portfolio content available.

Green Synthesis of Palladium Nanoparticles and Their Catalytic Applications publication trend

The graph below shows the total number of articles in green synthesis of palladium nanoparticles and their catalytic applications across all publications each year (not limited to Nature Index journals).

Technical terms

Green synthesis: Use of biological or environmentally benign processes to produce nanoparticles without toxic reagents.

Bioreductant: A biological substance that reduces metal ions to form nanoparticles.

Capping agent: A molecule that binds to nanoparticle surfaces to prevent aggregation and control growth.

Catalytic activity: The ability of a material to increase the rate of a chemical reaction without being consumed.

Selective oxidation: A catalytic process that oxidises specific functional groups in organic molecules.

References

1. Green Synthesis and Characterization of Palladium Nanoparticles Using Origanum vulgare L. Extract and Their Catalytic Activity. Molecules (2017).
2. Efficient synthesis of palladium nanoparticles using guar gum as stabilizer and their applications as catalyst in reduction reactions and degradation of azo dyes. Green Processing and Synthesis (2019).
3. Green Nanotechnology: Plant-Mediated Nanoparticle Synthesis and Application. Nanomaterials (2022).