Výsledky vyhledávání - "Alejandro G. Roca"

Akademický článek

Reproducibility and Scalability of Magnetic Nanoheater Synthesis

Autor: Jesus G. Ovejero, Alvaro Gallo-Cordova, Alejandro G. Roca, M. P. Morales, Sabino Veintemillas-Verdaguer

Publikováno v: Nanomaterials, Vol 11, Iss 8, p 2059 (2021)

The application of magnetic nanoparticles requires large amounts of materials of reproducible quality. This work explores the scaled-up synthesis of multi-core iron oxide nanoparticles through the use of thermal decomposition in organic media and kil

Externí odkaz: https://doaj.org/article/8f5dbb12fdb5462fb684358afc09beee

Zobrazit plný text záznamu

Direct Evidence of a Graded Magnetic Interface in Bimagnetic Core/Shell Nanoparticles Using Electron Magnetic Circular Dichroism (EMCD)

Autor: Alberto López-Ortega, Maria Varela, Daniel Del-Pozo-Bueno, Sònia Estradé, Alejandro G. Roca, Marta Estrader, Francesca Peiró, Josep Nogués

Publikováno v: Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname
Digital.CSIC. Repositorio Institucional del CSIC
Dipòsit Digital de la UB
Universidad de Barcelona

Interfaces play a crucial role in composite magnetic materials and particularly in bimagnetic core/shell nanoparticles. However, resolving the microscopic magnetic structure of these nanoparticles is rather complex. Here, we investigate the local mag

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0f3702a8a17ccd45a5442ca6b799549
http://hdl.handle.net/10261/264613

Zobrazit plný text záznamu

Combining X-Ray Whole Powder Pattern Modeling, Rietveld and Pair Distribution Function Analyses as a Novel Bulk Approach to Study Interfaces in Heteronanostructures : Oxidation Front in FeO/Fe3O4 Core/Shell Nanoparticles as a Case Study

Autor: Alberto López-Ortega, Rodrigo U. Ichikawa, Alejandro G. Roca, X. Turrillas, Marta Estrader, Josep Nogués, Inmaculada Peral

Publikováno v: Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname
Digital.CSIC. Repositorio Institucional del CSIC

Understanding the microstructure in heterostructured nanoparticles is crucial to harnessing their properties. Although microscopy is ideal for this purpose, it allows for the analysis of only a few nanoparticles. Thus, there is a need for structural

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a11a7d5e2b5af1747d1ef54fa68de2cd
http://hdl.handle.net/2072/437593

Zobrazit plný text záznamu

Synthesis and Applications of Anisotropic Magnetic Iron Oxide Nanoparticles

Autor: Alejandro G. Roca, Lucía Gutiérrez, María del Puerto Morales

Publikováno v: Surfaces and Interfaces of Metal Oxide Thin Films, Multilayers, Nanoparticles and Nano-composites ISBN: 9783030740726

Magnetic iron oxide nanoparticles have been used by human mankind since ancient times and have had the capacity to adapt to the demanding technologies in each period. Ancient applications used iron oxides from nature, since iron is one of the most ab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cdd429b401739e33da2a2b05f0bd0a96
https://doi.org/10.1007/978-3-030-74073-3_3

Zobrazit plný text záznamu

Application of nanoparticle tracking analysis for characterising the fate of engineered nanoparticles in sediment-water systems

Autor: Katie Privett, Karen Tiede, Alisatair Boxall, Alejandro G. Roca, Jiachao Jiang, Guibin Ma, John Pinkstone, Ping Luo, Jonathan G. C. Veinot

Publikováno v: Journal of Environmental Sciences. 64:62-71

Novel applications of nanotechnology may lead to the release of engineered nanoparticles (ENPs), which result in concerns over their potential environmental hazardous impact. It is essential for the research workers to be able to quantitatively chara

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9aabc81e50fb823bfc233a463cc2148
https://doi.org/10.1016/j.jes.2016.07.019

Zobrazit plný text záznamu

Elektronická kniha

Surfaces and Interfaces of Metal Oxide Thin Films, Multilayers, Nanoparticles and Nano-composites : In Memory of Prof. Dr. Hanns-Ulrich Habermeier

Autor: Alejandro G. Roca, Paolo Mele, Hanae Kijima-Aoki, Elvira Fantechi, Jana K. Vejpravova, Martin Kalbac, Satoru Kaneko, Tamio Endo

This book provides a general overview and current state of the art of different types of metal oxide nanomaterials, either in nanoparticles or thin film structure. It covers from the development and optimization of different nanofabrication/synthesis

Zobrazit plný text záznamu

Precise Size Control of the Growth of Fe

Autor: Javier, Muro-Cruces, Alejandro G, Roca, Alberto, López-Ortega, Elvira, Fantechi, Daniel, Del-Pozo-Bueno, Sònia, Estradé, Francesca, Peiró, Borja, Sepúlveda, Francesco, Pineider, Claudio, Sangregorio, Josep, Nogues

Publikováno v: ACS nano. 13(7)

The physicochemical properties of spinel oxide magnetic nanoparticles depend critically on both their size and shape. In particular, spinel oxide nanocrystals with cubic morphology have shown superior properties in comparison to their spherical count

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::8289d1f89118c93fe40559de31f10464
https://pubmed.ncbi.nlm.nih.gov/31173684

Zobrazit plný text záznamu

Zinc blende and wurtzite CoO polymorph nanoparticles: rational synthesis and commensurate and incommensurate magnetic order

Autor: Josep Nogués, I. V. Golosovsky, Alberto López-Ortega, Sònia Estradé, Francesca Peiró, L. López-Conesa, Marta Estrader, I. Puente-Orench, Alejandro G. Roca, E. Del Corro

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Recercat. Dipósit de la Recerca de Catalunya
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona

On the nanoscale, CoO can have different polymorph crystal structures, zinc blende and wurtzite, apart from rock salt, which is the stable one in bulk. However, the magnetic structures of the zinc blende and wurtzite phases remain virtually unexplore

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00fb4d57a7cb9df3af5ef2709a041d4d
http://hdl.handle.net/10261/202681

Zobrazit plný text záznamu

Design strategies for shape-controlled magnetic iron oxide nanoparticles

Autor: Alejandro G. Roca, Lucía Gutiérrez, Maria Eugênia Fortes Brollo, Sabino Veintemillas-Verdaguer, María del Puerto Morales, Helena Gavilán

Publikováno v: Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)

Ferrimagnetic iron oxide nanoparticles (magnetite or maghemite) have been the subject of an intense research, not only for fundamental research but also for their potentiality in a widespread number of practical applications. Most of these studies we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0eaceebfb9b2b5aada99545ef263ef57
https://ddd.uab.cat/record/214190

Zobrazit plný text záznamu

Precise Size Control of the Growth of Fe3O4 Nanocubes over a Wide Size Range Using a Rationally Designed One-Pot Synthesis

Autor: Javier Muro-Cruces, Claudio Sangregorio, Borja Sepúlveda, Alejandro G. Roca, Alberto López-Ortega, Josep Nogués, Elvira Fantechi, Daniel Del-Pozo-Bueno, Francesco Pineider, Sònia Estradé, Francesca Peiró

Publikováno v: Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Recercat. Dipósit de la Recerca de Catalunya
instname
Digital.CSIC. Repositorio Institucional del CSIC
ACS nano 13 (2019): 7716–7728. doi:10.1021/acsnano.9b01281
info:cnr-pdr/source/autori:Muro-Cruces, Javier; Roca, Alejandro G.; López-Ortega, Alberto; Fantechi, Elvira; Del-Pozo-Bueno, Daniel; Estradé, Sònia; Peiró, Francesca; Sepúlveda, Borja; Pineider, Francesco; Sangregorio, Claudio; Nogues, Josep/titolo:Precise Size Control of the Growth of Fe3O4 Nanocubes over a Wide Size Range Using a Rationally Designed One-Pot Synthesis/doi:10.1021%2Facsnano.9b01281/rivista:ACS nano/anno:2019/pagina_da:7716/pagina_a:7728/intervallo_pagine:7716–7728/volume:13

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82ca97c016e7c191d280111545128478
https://ddd.uab.cat/record/214203

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání