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Updated: Jun 21, 2026

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
Published on: June 25, 2018
Phyto-crystallization of palladium through reduction process using Cinnamom zeylanicum bark extract
M Sathishkumar1, K Sneha, In Seob Kwak
1Environmental Biotechnology National Research Laboratory, School of Chemical Engineering, Research Institute of Industrial Technology, Chonbuk National University, Jeonju 561-756, Republic of Korea.
This study demonstrates the first-time production of nanocrystalline palladium nanoparticles using Cinnamom zeylanicum bark extract. This eco-friendly phyto-synthesis method yields uniform palladium nanoparticles (15-20 nm) at room temperature.
Area of Science:
- Nanotechnology
- Materials Science
- Green Chemistry
Background:
- Nanoparticle synthesis often involves harsh chemicals and conditions.
- Developing environmentally benign methods for nanoparticle production is crucial.
Purpose of the Study:
- To investigate the phyto-synthesis of nanocrystalline palladium particles using Cinnamom zeylanicum bark extract (CBE).
- To explore the influence of biomaterial dosage, pH, and temperature on palladium nanoparticle formation.
- To characterize the synthesized palladium nanoparticles.
Main Methods:
- Phyto-synthesis using Cinnamom zeylanicum bark extract as a reducing and capping agent.
- Transmission Electron Microscopy (TEM) for size and shape analysis.
- Zeta potential measurements for surface charge analysis.
- Energy Dispersive X-ray (EDX) analysis for elemental composition.
Main Results:
- Successfully synthesized palladium nanoparticles with sizes ranging from 15 to 20 nm.
- Biomaterial dosage, pH, and temperature showed minimal impact on nanoparticle size and shape.
- Negative zeta potential observed, increasing with pH.
- EDX confirmed the presence of palladium, with 60% reduced to a zero-valent state by CBE.
- Terpenoids in CBE are hypothesized to be key in palladium ion reduction.
Conclusions:
- Cinnamom zeylanicum bark extract facilitates the green synthesis of palladium nanoparticles.
- The developed protocol offers an environmentally friendly approach for producing palladium nanoparticles under moderate conditions.
- Further research is needed to elucidate the exact biosynthesis mechanism.
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