Výsledky vyhledávání - "J. A. H. Coaquira"

Evidence of progressive Fe2+ to Fe3+oxidation in Fe2+-doped ZnO nanoparticles

Autor: F. F. H. Aragón, L. Villegas-Lelovsky, J. G. Parizaka, E. G. Zela, R. Bendezu, R. O. Gallegos, D. G. Pacheco-Salazar, S. W. da Silva, R. Cohen, L. C. C. M. Nagamine, J. A. H. Coaquira, P. C. Morais

Publikováno v: Materials Advances. 4:1389-1402

When Fe-ions enter into the ZnO NPs, their oxidation state can be tuned and the excitonic peak enlarges, indicating that the ZnO lattice becomes more disordered. The AFM interactions found in paramagnetic NPs become stronger as Fe content increases.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8780beff24c8383c54099d4596175e8
https://doi.org/10.1039/d3ma00053b

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High efficiency of magnetite nanoparticles for the arsenic removal from an aqueous solution and natural water taken from Tambo River in Peru

Autor: M. Huanca Ccamerccoa, N. L. Tapia Falcon, L. León Félix, D. G. Pacheco-Salazar, F. F. H. Aragón, J. A. H. Coaquira, Jéremie Garnier, C. Vera-Gonzales

Publikováno v: Journal of Environmental Health Science and Engineering. 20:849-860

Water is an essential compound on earth and necessary for life. The presence of highly toxic contaminants such as arsenic and others, in many cases, represents one of the biggest problems facing the earth´s population. Treatment of contaminated wate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2a4e91a80ba6b0af5ee0e7a5f1cb133
https://doi.org/10.1007/s40201-022-00825-y

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Synthesis and characterization of

Autor: Luis T, Quispe, L G Luza, Mamani, A A, Baldárrago-Alcántara, L León, Félix, Gerardo F, Goya, J A, Fuentes-García, D G, Pacheco-Salazar, J A H, Coaquira

Publikováno v: Nanotechnology. 33(33)

P-type and n-type metal oxide semiconductors are widely used in the manufacture of gas sensing materials, due to their excellent electronic, electrical and electrocatalytic properties. Hematite (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::6dd959b7a13f2562614dfd8f1048c65f
https://pubmed.ncbi.nlm.nih.gov/35508085

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Synthesis and characterization of a-Fe2O3 nanoparticles showing potential applications for sensing quaternary ammonium vapor at room temperature

Autor: Luis T Quispe, L G Luza Mamani, A A Baldárrago-Alcántara, L León Félix, Gerardo F Goya, J A Fuentes-García, D G Pacheco-Salazar, J A H Coaquira

Publikováno v: Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname
Digital.CSIC. Repositorio Institucional del CSIC

P-type and n-type metal oxide semiconductors are widely used in the manufacture of gas sensing materials, due to their excellent electronic, electrical and electrocatalytic properties. Hematite (α-Fe2O3) compound has been reported as a promising mat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::428e12336b010e995236517a5803fafa
http://zaguan.unizar.es/record/118732

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Tuning intrinsic defects in ZnO films by controlling the vacuum annealing temperature: an experimental and theoretical approach

Autor: K J Paz-Corrales, C A Vilca-Huayhua, F F H Aragón, L Villegas-Lelovsky, J A H Coaquira, S W da Silva, G E Marques, M D Teodoro, D G Pacheco-Salazar

Publikováno v: Physica Scripta. 97:075811

The control of native defects in the ZnO material is strongly important for a wide range of technological applications. In this paper, native defects are tuned via the post-thermal treatment of ZnO films in a high vacuum atmosphere. The microstructur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b2d0735b78db03f4d5387f15c6ef3faf
https://doi.org/10.1088/1402-4896/ac758b

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Tuning the magnetic properties of Sn

Autor: F F H, Aragón, L, Villegas-Lelovsky, L, Cabral, M P, Lima, A, Mesquita, J A H, Coaquira

Publikováno v: Nanoscale advances. 3(5)

During the last decade, there was a substantial increase in the research on metal-doped oxide semiconductor nanoparticles due to advances in the engineering of nanomaterials and their potential application in spintronics, biomedicine and photocatalys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::46b273f7dbe3bf866071df958664fd92
https://pubmed.ncbi.nlm.nih.gov/36132869

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Tailoring the physical and chemical properties of Sn

Autor: F F H, Aragón, L, Villegas-Lelovsky, L, Cabral, M P, Lima, J C R, Aquino, M C, Mathpal, J A H, Coaquira, S W, da Silva, L C C M, Nagamine, S O, Parreiras, P L, Gastelois, G E, Marques, W A A, Macedo

Publikováno v: Physical chemistry chemical physics : PCCP. 22(6)

In this work, we present a coupled experimental and theoretical first-principles investigation on one of the more promising oxide-diluted magnetic semiconductors, the Sn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::d8d68fbc3a73ce48b641283ea439aba0
https://pubmed.ncbi.nlm.nih.gov/32003381

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