Epitaxial growth of Pd nanoparticles on molybdenum disulfide by sonochemistry and its effects on electrocatalysis

Abstract

We report the epitaxial growth of Pd nanoparticles on MoS2 surface and their electrocatalytic activity for oxygen reduction reaction (ORR).

Experimentally Validated Structures of Supported Metal Nanoclusters on MoS2

“…In this Letter, we apply a complex modeling paradigm that combines theory and experiment, in a self-consistent computational framework, to investigate supported metal NCs metal clusters on 2H-MoS 2 substrate focusing mainly on Pt NCs. These systems have been recently the subject of many exciting applications; − for example, supported Pt NCs on MoS 2 have shown better H 2 conversion efficiency to commercial Pt electrodes while using 68% less Pt . The novelty of our study is in using an adaptive genetic algorithm (AGA) based on classical force fields and DFT calculations to systematically investigate a large set of NCs with more than a few Pt atoms and then to validate their atomic structure atom-by-atom using HAADF-STEM microscopy.…”

Covalently functionalized layered MoS2 supported Pd nanoparticles as highly active oxygen reduction electrocatalysts

“…24 Despite the huge potential of MoS 2 as a catalyst substrate, only a few reports have been published employing MoS 2 sheets as a supporting material for metal-based catalytic nanoparticles towards the ORR. [25][26][27] Actually, the main bottlenecks that keep MoS 2 behind the scenes are related to their low conductivity and the poor dispersity and the homogeneity of the resulting hybrids. 14 Therefore, developing efficient synergistic interactions between MoS 2 sheets and noble metal nanoparticles is essential to overcome these limitations.…”

“…14 Therefore, developing efficient synergistic interactions between MoS 2 sheets and noble metal nanoparticles is essential to overcome these limitations. 28 To this end, diverse methodologies 25,26 e.g. epitaxial growth, physical mixing, and sonochemical approaches, have been involved for the preparation of such hybrid materials aiming at the optimization of the ORR performance of the supported catalysts.…”

Hydrogen Evolution and Wastewater Treatment of Hydrangeal‐like Catalyst Decroatedby the NiS Nanosheet and PdNanoparticle

“…For the past few years, the electroconductivity of the MoS 2 has been enhanced by addition of the metals as an efficient method . In particular, the use of the Pd metal could enhance photocatalytic activity . Meanwhile, the Ni compound, especially the Ni chalcogenides, was considered as one of the most promising candidates to enhance the photocatalytic performance under visible‐light illumination .…”