Zobrazeno 1 - 10
of 25
pro vyhledávání: '"P T C, Freire"'
Autor:
Ezequiel A. Belo, Jose E. M. Pereira, Paulo T. C. Freire, Dimitri N. Argyriou, Juergen Eckert, Heloisa N. Bordallo
Publikováno v:
IUCrJ, Vol 5, Iss 1, Pp 6-12 (2018)
Enantiomeric amino acids have specific physiological functions in complex biological systems. Systematic studies focusing on the solid-state properties of d-amino acids are, however, still limited. To shed light on this field, structural and spectros
Externí odkaz:
https://doaj.org/article/f67c959ffd4e42728225b92add8d6722
Autor:
Luiz Gustavo Pimenta Martins, Matheus J. S. Matos, Alexandre R. Paschoal, Paulo T. C. Freire, Nadia F. Andrade, Acrísio L. Aguiar, Jing Kong, Bernardo R. A. Neves, Alan B. de Oliveira, Mário S.C. Mazzoni, Antonio G. Souza Filho, Luiz Gustavo Cançado
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
The synthesis of two-dimensional diamond is the ultimate goal of diamond thin-film technology. Here, the authors perform Raman spectroscopy of bilayer graphene under pressure, and obtain spectroscopic evidence of formation of diamondene, an atomicall
Externí odkaz:
https://doaj.org/article/f22b667bf62d4b73934fcde11b5f6144
Autor:
P. V. Oliveira, M. S. S. Viana, O. A. Barros, P. T. C. Freire, F. I. Bezerra, S. B. S. Gusmão, B. C. Viana, J. H. Silva
Publikováno v:
Journal of Spectroscopy, Vol 2018 (2018)
The preservation of fossils depends on several interactions of organic and inorganic chemical processes. The hard parts, which are more suitable for fossilization, might record valuable information of biogenic processes, while the taphonomic characte
Externí odkaz:
https://doaj.org/article/877e7b461014489baaf748cc6e09b5b6
Autor:
W. Castro Ferreira, B. S. Araújo, M. A. P. Gómez, F. E. O. Medeiros, C. W. de Araujo Paschoal, C. B. da Silva, P. T. C. Freire, U. F. Kaneko, F. M. Ardito, N. M. Souza-Neto, A. P. Ayala
Publikováno v:
The Journal of Physical Chemistry C. 126:541-550
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eacdde0e02242fbd3689297857006edf
https://doi.org/10.1021/acs.jpcc.1c07526
https://doi.org/10.1021/acs.jpcc.1c07526
Autor:
Ezequiel A. Belo, Jose E. M. Pereira, Paulo T. C. Freire, Dimitri N. Argyriou, Juergen Eckert, Heloisa N. Bordallo
Publikováno v:
IUCrJ, Vol 5, Iss 5, Pp 658-659 (2018)
Externí odkaz:
https://doaj.org/article/db14ce174d8b49adb4c9730325b971f8
Autor:
J V B, Moura, C D, de Abreu Lima, E A O, Melo, V E, Santos, W C, Ferreira, P T C, Freire, C, Luz-Lima
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 249
In this work, we present the study of the temperature-dependent behavior of silver orthophosphate (Ag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6c56c599d89a6f4c00da96ffa37f396a
https://pubmed.ncbi.nlm.nih.gov/33360056
https://pubmed.ncbi.nlm.nih.gov/33360056
Autor:
G D, Saraiva, W, Paraguassu, A J Ramiro, de Castro, F F, de Sousa, J G, da Silva Filho, V O Sousa, Neto, J A, Lima, A M R, Teixeira, P T C, Freire
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 239
We report here the analysis of vibrational properties of the ZnMoO4 by using theoretical and experimental approaches, well as results of high pressure experiments in this system. The analysis of the lattice dynamics calculations through the classical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::13e3506d14db7264d670ef195a550b06
https://pubmed.ncbi.nlm.nih.gov/32473562
https://pubmed.ncbi.nlm.nih.gov/32473562
Publikováno v:
Journal of Sol-Gel Science and Technology. 84:206-213
Tin dioxide nanoparticles were synthesized by the proteic sol–gel method. Tin chloride (SnCl4·5H2O) was used as source of Sn4+ and commercial gelatin as organic precursor. Several calcination temperatures were employed. Thermogravimetric analysis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9452f63e303708d952cc6930ea9f9332
https://doi.org/10.1007/s10971-017-4488-7
https://doi.org/10.1007/s10971-017-4488-7
Autor:
G D, Saraiva, J G, da Silva Filho, A, Saraiva-Souza, A J Ramiro, de Castro, A M R, Teixeira, C, Luz-Lima, F G S, Oliveira, V O Sousa, Neto, P T C, Freire, F F, de Sousa
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 224
This work reports a theoretical and experimental study on the electronic and vibrational properties of Bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6a8f6506e51d03dbb813b850e8237266
https://pubmed.ncbi.nlm.nih.gov/31330420
https://pubmed.ncbi.nlm.nih.gov/31330420
Autor:
F. A. S. Lima, C. B. Silva, P. T. C. Freire, L. P. M. Santos, T. S. Ribeiro, M. S. Pereira, Igor F. Vasconcelos
Publikováno v:
Journal of Nanoparticle Research. 20
Iron-doped SnO2 nanoparticles with chemical formula Sn1−xFexO2−y (x = 0.02, 0.05 and 0.10 at%) were successfully produced by a proteic sol–gel method. Thermogravimetric analysis and differential scanning calorimetry were performed to investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79043a2988b02997439863076dbb5b32
https://doi.org/10.1007/s11051-018-4316-1
https://doi.org/10.1007/s11051-018-4316-1