Halide-aided controlled fabrication of Pt–Pd/graphene bimetallic nanocomposites for methanol electrooxidation

Reddy, G. Vishwakshan; Raghavendra, P.; Chandana, P. Sri; Sarma, Loka Subramanyam

doi:10.1039/c5ra14682h

Cited by 29 publications

(1 citation statement)

References 80 publications

(48 reference statements)

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“…The reason for the enhanced mass activities of the PtPd NCs/RGO could be attributed to the core–shell structure, the small size, and the synergetic effects between Pt and Pd. Furthermore, compared with those of recently reported PtPd alloys, ,,− the PtPd NCs/RGO also shows comparable electrocatalytic performance for methanol electro-oxidation, as shown in Table S2.…”

Section: Resultsmentioning

confidence: 61%

Organics- and Surfactant-Free Molten Salt Medium Controlled Synthesis of Pt-M (M = Cu and Pd) Bi- and Trimetallic Nanocubes and Nanosheets

Qiu

Zhang

et al. 2017

ACS Sustainable Chem. Eng.

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We present a novel synthetic strategy for the shape-controlled synthesis of Pt-based alloy nanoparticles (NPs) in inorganic molten salt without using any organic surfactants or capping agents. Graphene oxide (GO) was chosen as the stabilizer in the inorganic molten salt synthetic strategy, due to the existence of various oxygen-containing functional groups on its surface, which adsorb, anchor, and stabilize the metal ions or NPs. After GO was added in molten salt, the PtPd nanosheets were formed on its surface in H 2 atmosphere. In addition, when KI was chosen as the shape-inducing agent to selectively adsorb on and fully protect the (100) facets of alloys, PtPd nanocubes with core−shell structure, PtCu nanohemicubes, and PtPdCu nanocubes were prepared successfully on the surface of GO in molten salt. Introduction of GO as the stabilizer in molten salt proves a new approach in synthesis of Pt-based nanocrystals with controlled morphologies.

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Section: Resultsmentioning

confidence: 61%

Organics- and Surfactant-Free Molten Salt Medium Controlled Synthesis of Pt-M (M = Cu and Pd) Bi- and Trimetallic Nanocubes and Nanosheets

Qiu

Zhang

et al. 2017

ACS Sustainable Chem. Eng.

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Mild and Efficient Synthesis of 5‐(2,2‐difluoro‐1‐phenyl cyclopropyl)‐N‐substituted‐1,3,4‐oxadiazol‐2‐amines via Graphene Oxide as Catalyst under Ultrasonic Irradiation Conditions

Reddy

et al. 2017

ChemistrySelect

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We disclosed herein a series of novel 5-(2,2-difluoro-1-phenylcyclopropyl)-N-substituted-1,3,4-oxadiazol-2-amines from the reaction of 2,2-difluoro-1-phenylcyclopropane carbohydrazide and various isothiocyanates in the presence of graphene oxide (GO) and 1,8-diazabicyclo [5.4.0]undec-7-ene (DBU) under conventional and ultrasonic irradiation conditions. It was found that the reaction was completed in a short period of time with good to excellent yields by virtue of attributes offered by GO catalyst. Further, the reaction underwent smoothly in ethanol and ionic liquids. Noteworthy, GO can be recycled and reused for five cycles without considerable loss in activity. The oxidative activity and morphology of GO catalyst was confirmed by transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and cyclic voltammetry (CV) techniques.[a] S.

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Nanocomposites of NiO/Graphene as Efficient Electrocatalyst in Fuel Cell

Baruah

Deb

2021

Proceedings of 28th National Conference on Condensed Matter Physics

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Halide-aided controlled fabrication of Pt–Pd/graphene bimetallic nanocomposites for methanol electrooxidation

Abstract: Herein, Pt–Pd/RGO bimetallic nanocomposites were synthesized through a halide-aided fabrication strategy. The Pt–Pd/RGO-15KI with its uniform dispersion exhibits improved methanol electro-oxidation activity compared to Pt–Pd/RGO-0KI.

Cited by 29 publications

References 80 publications

Organics- and Surfactant-Free Molten Salt Medium Controlled Synthesis of Pt-M (M = Cu and Pd) Bi- and Trimetallic Nanocubes and Nanosheets

Organics- and Surfactant-Free Molten Salt Medium Controlled Synthesis of Pt-M (M = Cu and Pd) Bi- and Trimetallic Nanocubes and Nanosheets

Mild and Efficient Synthesis of 5‐(2,2‐difluoro‐1‐phenyl cyclopropyl)‐N‐substituted‐1,3,4‐oxadiazol‐2‐amines via Graphene Oxide as Catalyst under Ultrasonic Irradiation Conditions

Nanocomposites of NiO/Graphene as Efficient Electrocatalyst in Fuel Cell

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