Metal nanoparticles have always attracted attention for applied catalysis in technical fields including sensor applications. Biogenically synthesized nanoparticles are uniquely non-toxic and possess enhanced antimicrobial activity. Eco-friendly palladium nanoparticles (PdNPs) synthesized from plant extracts and/or biopolymers have wide biomedical, environmental, and biosensor applications. The size, shape, stability, and catalytic behavior of PdNPs are influenced by factors such as pH, temperature, concentration of metallic salt, and concentration of plant extract/biopolymer solutions. This review article focuses on the comprehensive synthesis of biogenic PdNPs from phytochemicals/biopolymers and concisely reports their heterogeneous organic catalytic applications. Furthermore, improved catalytic efficiencies, selectivities, and reaction yields of organic coupling reactions catalyzed by biogenic PdNPs are discussed in detail. This review highlights the safety, sustainability, and effective catalytic activity of biogenic PdNPs for organic coupling reactions, which ensures lesser toxic waste generation and reduces hazardous effects on the environment.

金属纳米粒子在包括传感器应用在内的技术领域中的应用催化一直受到关注。生物合成的纳米颗粒具有独特的无毒特性，并具有增强的抗菌活性。由植物提取物和/或生物聚合物合成的环保钯纳米粒子 (PdNPs) 具有广泛的生物医学、环境和生物传感器应用。PdNPs 的大小、形状、稳定性和催化行为受 pH、温度、金属盐浓度和植物提取物/生物聚合物溶液浓度等因素的影响。这篇综述文章着重于从植物化学物质/生物聚合物中综合合成生物源 PdNPs，并简明扼要地报道了它们的多相有机催化应用。此外，提高催化效率、选择性、详细讨论了生物源 PdNPs 催化的有机偶联反应的产率和反应产率。本综述强调了生物源 PdNPs 用于有机偶联反应的安全性、可持续性和有效催化活性，可确保减少有毒废物的产生并减少对环境的有害影响。