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Platinum nanoelectrodes embedded in an insulating Matrix: An innovative Approach
No full textA procedure for the preparation of platinum nanoelectrodes in an insulating alumina matrix, using metal-organic chemical vapor deposition (MOCVD), is described. The electrodes were characterized using cyclic voltammetry in aqueous solutions containing Ru(NH3)6Cl3. The size distribution and crystallinity of the nanoparticles were studied using transmission electron microscopy (TEM). The results show that the MOCVD methodology is adequate for the preparation of ensembles of nanoelectrodes with either overlap or no overlap of the diffusion layers of each nanoelectrodes, depending on the amount of Pt loading in Pt/Al2O3 nanocomposite
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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