Producción Científica Profesorado

Morphological and magnetic properties of cobalt nanoclusters electrodeposited onto HOPG



Mendoza Huizar, Luis Humberto

2008

Morphological and magnetic properties of Cobalt nanoclusters electrodeposited onto HOPG". M. Rivera, C.H. Rios-Reyes, L.H. Mendoza-Huizar. Applied Surface Science 255 (2008) 17541758. ISSN 0169-4332.. DOI: In this work, the morphological and magnetic properties of cobalt nanoclusters obtained from two different sulphate electrolyte solutions were studied. The aggregates were electrodeposited onto highly oriented pyrolytic graphite electrodes in overpotential conditions, in order to investigate the cationic influence on the final properties of the aggregates. In both cases, scanning electron microscopy and atomic force microscopy showed random isolated clusters on the electrode surface, where size variations were determined by the electrolyte solution. By using magnetic force microscopy, the distribution of the electrodeposited magnetic material was more clearly observed which gave some insights on the growth mechanism of these aggregates.


Abstract


In this work, the morphological and magnetic properties of cobalt nanoclusters obtained from two different sulphate electrolyte solutions were studied. The aggregates were electrodeposited onto highly oriented pyrolytic graphite electrodes in overpotential conditions, in order to investigate the cationic influence on the final properties of the aggregates. In both cases, scanning electron microscopy and atomic force microscopy showed random isolated clusters on the electrode surface, where size variations were determined by the electrolyte solution. By using magnetic force microscopy, the distribution of the electrodeposited magnetic material was more clearly observed which gave some insights on the growth mechanism of these aggregates.



Producto de Investigación




Artículos relacionados

Synthesis of Zn compounds derived from 1H-benzimidazol-2-ylmethanamine

Potentiometric behavior of graphite-epoxy electrochemical transducers towards anions, cations and pH...

A theoretical quantum study on the distribution of electrophilic and nucleophilic active sites on Ag...

A Voltammetric Study Of The Underpotential Deposition Of Cobalt Onto A Glassy Carbon Electrode

The role of temperature in copper electrocrystallization in ammoniachloride solutions

THEORETICAL STUDY ON THE MODIFICATION OF ACTIVE SITES IN GOLD SURFACES MODELED AS FINITE CLUSTERS: I...

Influence of the Cation Nature of the Sulphate Salt on the Electrochemical Synthesis of Sulfate-Dope...

Analysis of the experimental pressuretemperature behavior in the isotropicnematic phase transition f...

Análisis del Comportamiento Presión-Temperatura en la Transición Isotrópico-Nemático del p-Azoxianis...

Morphological and magnetic properties of cobalt nanoclusters electrodeposited onto HOPG