Template-free synthesis of Pt-MOx (M = Ni, Co & Ce) supported on cubic zeolite-A and their catalytic role in methanol oxidation and oxygen reduction reactions characterized by the hydrodynamic study

  title={Template-free synthesis of Pt-MOx (M = Ni, Co \& Ce) supported on cubic zeolite-A and their catalytic role in methanol oxidation and oxygen reduction reactions characterized by the hydrodynamic study},
  author={N. Mohan and L. Cindrella},
  journal={International Journal of Hydrogen Energy},
Abstract Cubic zeolite-A (LTA) is synthesized and ion-exchanged with Pt, Ni, Co and Ce ions followed by reduction of Pt (IV) on the metal oxides (NiO, CoO and CeO 2 ) formed in the zeolite matrix. Their catalytic performance in methanol oxidation (MOR) and oxygen reduction reactions (ORR) are evaluated. The structure, morphology and composition of these catalysts are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectral analysis (EDS) and X-ray… Expand
Bimetallic Pt3Mn nanowire network structures with enhanced electrocatalytic performance for methanol oxidation
Abstract Pt-based catalysts are still most attractive and could be the major driving force for facile electrochemical reactions in direct methanol fuel cells (DMFCs). In this work, a Pt3Mn nanowireExpand
Mn-doped Ni(OH)2 Nanostructures as an Efficient Electrocatalyst for Methanol Oxidation in Basic Solution
  • Shengliang Wei, Yuqing Miao
  • Materials Science
  • 2020
The Mn-doped Ni(OH)2 nanostructures were obtained by a simple ion-exchange hydrothermal method. The as-prepared materials were characterized by scanning electron microscopy (SEM), energy-dispersiveExpand
Pt nanoparticles sputter-deposited on TiO2/MWCNT composites prepared by atomic layer deposition: Improved electrocatalytic activity towards the oxygen reduction reaction and durability in acid media
Abstract Acid-treated multi-walled carbon nanotubes (MWCNTs) were decorated with TiO2 using the atomic layer deposition (ALD) technique followed by uniform distribution of platinum nanoparticlesExpand
Enhanced electro-oxidation of methanol at nanoparticle-based Ru/Pt bimetallic catalyst: Impact of GC substrate pretreatment
Abstract This study addresses the facile preparation of electro-active Ru–Pt binary nanocatalyst layer electrodeposited onto glassy carbon (GC) electrodes for efficient methanol electrooxidationExpand
One-step synthesis of an octahedral Mn3O4/rGO composite for use as an electrocatalyst in the oxygen reduction reaction
AbstractThe development of low-cost, high-performance, non-precious-metal catalysts for the oxygen reduction reaction (ORR) is highly desirable. In this work, a composite comprising octahedralExpand
Decomposition of Nickel(Ⅱ)-Ethylenediaminetetraacetic acid by Fenton-Like reaction over oxygen vacancies-based Cu-Doped Fe3O4@γ-Al2O3 catalyst: A synergy of oxidation and adsorption.
To investigate the decomposition process of Ni-EDTA over oxygen vacancies-based catalyst, liquid chromatography-quadrupole/electrostatic field orbitrap high resolution mass spectrometry was employed to identify the generated intermediates and thus, a plausible decomposition pathway was successfully conceived. Expand
Effect of X zeolite-carbon composite ratio as support of Pt nanoparticles for MOR and ORR
X zeolite-carbon composites as Pt supports with different mass ratios of 3:1 (S1), 1:1 (S2), and 1:3 (S3) were synthesized by sol-gel method. The catalytic performance of Pt/composites for MOR andExpand
ZIF-8-derived carbon-thin-layer protected WC/W24O68 micro-sized rods with enriched oxygen vacancies as efficient Pt co-catalysts for methanol oxidation and oxygen reduction
Abstract To make methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR) more efficient, it is essential to explore Pt support (low Pt-loading) with desirable co-catalytic activity.Expand
Enhancement of Activity and Development of Low Pt Content Electrocatalysts for Oxygen Reduction Reaction in Acid Media
Platinum is a main catalyst for the electroreduction of oxygen, a reaction of primary importance to the technology of low-temperature fuel cells. Due to the high cost of platinum, there is a need toExpand
Mesoporous CeO2–C hybrid spheres as efficient support for platinum nanoparticles towards methanol electrocatalytic oxidation
Abstract The development of direct methanol fuel cells (DMFCs) is partially limited by the poor kinetics of methanol oxidation reaction (MOR) at the anode side. It was reported that the interactionExpand


Synthesis of ZSM-5 zeolite: Electrochemical behavior of carbon paste electrode modified with Ni (II)–zeolite and its application for electrocatalytic oxidation of methanol
Abstract In this research, we reported a novel method for synthesis of ZSM-5 zeolite. The synthesized zeolite was characterized using X-ray diffraction, scanning electronic microscopy and FT-IRExpand
Direct synthesis of Fe-ZSM-5 zeolite and its prospects as efficient electrode material in methanol fuel cell
Abstract New method of direct synthesis of Fe-ZSM-5 zeolite using tetrapropyl ammonium bromide (TPABr) as the template is reported in this study. The synthesis was based on one step procedure and didExpand
One-pot surfactant-free synthesis of high surface area ternary alloys, PtMCo/C (M = Cr, Mn, Fe, Ni, Cu) with enhanced electrocatalytic activity and durability for PEM fuel cell application
Abstract New and simple methodology has been developed to synthesize high surface area electrocatalysts for PEM fuel cell. PtMCo/C (M = Cr, Mn, Fe, Ni, Cu) ternary alloys have been synthesized inExpand
Synthesis of graphene-supported hollow Pt–Ni nanocatalysts for highly active electrocatalysis toward the methanol oxidation reaction
Shape- and size-controlled synthesis of Pt-based nanocatalysts has attracted much attention because their catalytic performance is highly dependent on the surface areas, surface atomic structures,Expand
Fabrication of bimetallic Pt–M (M = Fe, Co, and Ni) nanoparticle/carbon nanotube electrocatalysts for direct methanol fuel cells
Abstract The electrochemical activities of three bimetallic Pt–M (M = Fe, Co, and Ni) catalysts in methanol oxidation have been investigated. An efficient approach including chemical oxidation ofExpand
Nanostructured Pt-Fe/C cathode catalysts for direct methanol fuel cell: The effect of catalyst composition
A series of carbon supported pt-fe bimetallic nanocatalysts (pt-fe/c) with varying pt:fe ratio were prepared by a modified ethylene glycol (eg) method, and then heat-treated under h(2)-ar (10Expand
Preparation of Pt/NiO-C electrocatalyst and heat-treatment effect on its electrocatalytic performance for methanol oxidation
Abstract Pt catalyst supported on Vulcan XC-72R containing 5 wt% NiO (Pt/NiO–C) showed larger electrochemical active surface area and higher electrochemical activity for methanol oxidation than PtExpand
An electrode with Ni(II) loaded analcime zeolite catalyst for the electrooxidation of methanol
Abstract There is a high overvoltage in the oxidation of methanol in fuel cells, and so modified electrodes are used to decrease it. A modified electrode that used Ni(II) loaded analcime zeolite toExpand
Chemical and Electronic Effects of Ni in Pt/Ni and Pt/Ru/Ni Alloy Nanoparticles in Methanol Electrooxidation
Electrooxidation of methanol in sulfuric acid solution was studied using Pt, Pt/Ni(1:1 and 3:1), Pt/Ru/Ni(5:4:1 and 6:3.5:0.5), and Pt/Ru(1:1) alloy nanoparticle catalysts, in relation to methanolExpand
Methanol oxidation on MoO 3 promoted Pt/C electrocatalyst
Abstract MoO 3 is incorporated into Vulcan carbon XC-72R by solid–state reaction under intermittent microwave heating (IMH) method. The Pt nanoparticles are dispersed by microwave-assisted polyolExpand