Palladium nanoparticles supported on reduced graphene oxide: Facile synthesis and highly efficient electrocatalytic performance for methanol oxidation

A novel sensor based on electrodeposited Au–Pt bimetallic nano-clusters decorated on graphene oxide (GO)–electrochemically reduced GO for sensitive detection of dopamine and uric acid

“…There have been reports of chemically reduced GO by ultra-high vacuum heat [76], chemical treatments (with hydrazine/hydrazine derivatives [77] or high-concentration alkaline solution [78], which may lead some disadvantages such as considered to be dangerous substances labeled and required special equipments. A promising, green, efficient, inexpensive and rapid method based on electrochemistry to produce electrochemically reduced graphene oxide (ERGO) has been introduced [79][80]. Moreover, due to the stability of film on the electrode surface, time saving of fabrication and more excellent physic-chemical properties than pure GO and pure ERGO, the GO-ERGO nanocomposites was reported in recent time [81][82].…”

Mixed Zinc/Manganese on Highly Reduced Graphene Oxide: A Highly Active Nanocomposite Catalyst for Aerial Oxidation of Benzylic Alcohols

“…The sharp peak at 1740 cm −1 correspond to (C=O) stretching of (−COOH) on the surface [77], and the strong absorption peak at approximately 1630 cm −1 is due to the stretching vibration of carbon backbone (C=C/C−C) [78,79]. In addition, the three absorption bands located at 1397, 1225, and 1060 cm −1 are assigned to stretching vibrations of (C−OH), (C−O−C) and (C−O), correspondingly [76,80]. In HRG spectra obtained from the reduction of GO in hydrazine monohydrate (Figure 3b), the broad band around 1214 cm −1 corresponds to (C−OH) stretching vibration and weak peak around 1634 cm −1 is related to (C=C) group owing to the skeletal aromatic vibration.…”

“…Meanwhile, absorption band at around 580 cm −1 could be due to different oxides of manganese [85]. (Figure 3a) exhibits an intensive broad peak around 3430 cm −1 assigned to hydroxyl groups (O-H) stretching vibrations of (-COOH) groups and water molecules [76]. The sharp peak at 1740 cm −1 correspond to (C=O) stretching of (−COOH) on the surface [77], and the strong absorption peak at approximately 1630 cm −1 is due to the stretching vibration of carbon backbone (C=C/C−C) [78,79].…”

Palladium nanoparticles supported on reduced graphene oxide as an efficient catalyst for the reduction of benzyl alcohol compounds

“…The FTIR spectrum of graphite oxide exhibits an intensive broad peak of O\ \H stretching vibrations at about 3393 cm − 1 , and several bands at 1719, 1574, 1215 and 1044 cm −1 assigned to C_O, C_C, (C\ \O) epoxy and (C\ \O) alkoxy groups, respectively (Fig. 4a) [33]. The comparison of FT-IR spectra of graphite oxide and Pd NPs/rGO clearly shows that chemical changes occurred during Pd NPs deposition using ultrasonication.…”

“…The FTIR spectrum is dominated by a broad band at~1636 cm −1 due to C_C stretching modes, suggesting partial restoration of the aromatic network during the chemical process (Fig. 4b) [33].…”