Biosynthesis of Highly Retrievable Magnetic Palladium Nanoparticles Stabilized on Bio-composite for Production of Various Biaryl Compounds and Catalytic Reduction of 4-Nitrophenol

Palladium/graphene oxide nanocomposites with carbon nanotubes and/or magnetite for the reduction of nitrophenolic compounds

“…S21 and S22 in the ESI † for the correlations. The results obtained in this study (for the rst catalytic cycle) compares well and even performs better than some reported TOF by other catalysts, Pd on Fe 3 O 4 cellulose composite (8.3 Â 10 À5 s À1 ), 64 Pd NPs supported within the cryogels (2.18 Â 10 À5 to 14.7 Â 10 À5 s À1 ), 65 and PdCu bimetallic nanocrystals (1.31 Â 10 À6 and 4.25 Â 10 À6 ). 66 All four nanocomposites were tested for a second catalytic cycle for the reduction of 4-NP aer being recovered and washed.…”

Efficient synthesis of palladium nanoparticles using guar gum as stabilizer and their applications as catalyst in reduction reactions and degradation of azo dyes

“…All these factors prompted us to explore guar gum (green source) for the synthesis of palladium nanoparticles. PdNPS were earlier synthesized through green approach by using Cinnamom zeylanicum bark [24], broth of Cinnamom camphora leaf [25], banana peel extract [26], Annona squamosa L. peel extract [27], gum acacia [28], Anacardium occidentale [29] Pulicaria glutinosa extract [30], carboxy methyl cellulose [31], chitosan [32], and xanthan gum [33]. In our study we use guar gum as capping and stabilizing agent for the palladium nanoparticles synthesis.…”

Prospects and Applications of Palladium Nanoparticles in the Cross‐coupling of (hetero)aryl Halides and Related Analogues

“…Superparamagnetic oxides, such as Fe 3 O 4 , have recently emerged as new materials for the immobilisation of metal nanoparticles with improved separation capabilities. [55] Elazab [56] and Baran [57] independently studied Suzuki reaction on a diversity of different substrates using Pd nanoparticles deposited on Fe 3 O 4. and pectin-carboxymethyl cellulose composite (PctÀ CMC/Fe 3 O 4 ) (Scheme 18) respectively [58] The PdNPs was an easily recyclable and highly efficient catalyst for the fabrication of various biaryl compounds and can be used in different catalytic systems due to its notable features such as easy workup, high reaction yields, easy separability, and excellent reusability. [57] In another front, Nehlig and co-workers [59] used highly efficient and retrievable immobilised Pd on magnetic nanoparticles bearing proline as a catalyst (Figure 6) for Suzuki-Miyaura catalyst in aqueous media (Scheme 19).…”