Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Débora Morais Bezerra"'
Autor:
Débora Morais Bezerra
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
Catalisadores ativos e estáveis, preparados a partir dos hidróxidos duplos lamelares (HDLs) contendo os cátions Ni2+, Zn2+, Al3+ e Zr4+(NiZn-Al, NiZn-AlZr e NiZn-Zr), foram avaliados na reação de reforma seca do metano. Os precursores foram cara
Publikováno v:
Brazilian Journal of Chemical Engineering. 39:645-659
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dfed928c9a608a588435ee0061598d0
https://doi.org/10.1007/s43153-021-00213-3
https://doi.org/10.1007/s43153-021-00213-3
Publikováno v:
Materials Characterization. 154:103-115
The low stability of Si-MCM-41 limits its usage in the presence of water. The loss of structural order is mainly due to H2O physisorption and hydrolysis of the ≡Si-O-Si≡ bonds. In this work, it was demonstrated that water molecules could cause de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e26f5a2f29533429d9620c03aad8895
https://doi.org/10.1016/j.matchar.2019.05.032
https://doi.org/10.1016/j.matchar.2019.05.032
Publikováno v:
Science and Technology of Materials. 30:166-173
In this paper, we report a study of the influence of the synthesis method on the properties of mixed metal oxides. For this, the syntheses of the mixed oxide by chemical coprecipitation and modified polymeric precursor (MPP) methods containing Ni2+,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca118a02b5e749e10c70bd5c48315904
https://doi.org/10.1016/j.stmat.2018.07.001
https://doi.org/10.1016/j.stmat.2018.07.001
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0ecd9c10467188c91de908fa419d3f4
https://doi.org/10.1002/jrs.5460
https://doi.org/10.1002/jrs.5460
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Cation ordering is the most common phenomenon detected in A 3 B′B″ 2 O 9 -based complex perovskites. Some important physical features of this system are due to the B-site ordering at long and short range. For microwave applications as filters and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3efe14de280d0ba70e09382f56a0b180
https://doi.org/10.1016/j.ceramint.2017.07.133
https://doi.org/10.1016/j.ceramint.2017.07.133
Autor:
João Elias Figueiredo Soares Rodrigues, R. C. Costa, Paulo S. Pizani, Antônio Carlos Hernandes, Débora Morais Bezerra
Publikováno v:
Journal of Raman Spectroscopy. 48:1243-1249
Octahedral tilting is the most common distortion process observed in centrosymmetric perovskite compounds. Indeed, crucial physical properties of this oxide stem from the tilts of BO6 rigid octahedra. In microwave ceramics with perovskite-type struct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d5157c17a2b079b2d2b64a8fdf3fb64
https://doi.org/10.1002/jrs.5195
https://doi.org/10.1002/jrs.5195
Publikováno v:
Materials Characterization. 125:29-36
Layered double hydroxides are anionic clays with formula [MII1 − x MIIIx(OH)2]q +[An −]q/n·mH2O, finding possible uses as catalyst support, adsorbents and so on. In this paper, we address the phase formation of layered double hydroxides containi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ba103b94f1fe5a72947fb969145337b
https://doi.org/10.1016/j.matchar.2017.01.015
https://doi.org/10.1016/j.matchar.2017.01.015
Autor:
João Elias Figueiredo Soares Rodrigues, Carlos William de Araujo Paschoal, Adeilton Pereira Maciel, Débora Morais Bezerra
Publikováno v:
Ceramics International. 40:5921-5930
In this work we investigated the phase formation and structural ordering of Ba 3 B ′ Nb 2 O 9 ( B ′ = Ca and Zn) perovskite powders obtained by a modified polymeric precursor route using X-ray powder diffraction and Raman spectroscopy. We obtaine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22cda22cf77a210765d98f2d69fb5688
https://doi.org/10.1016/j.ceramint.2013.11.037
https://doi.org/10.1016/j.ceramint.2013.11.037
Autor:
Alexandre Rocha Paschoal, João Elias Figueiredo Soares Rodrigues, Débora Morais Bezerra, Carlos William de Araujo Paschoal, Adeilton Pereira Maciel
Publikováno v:
Vibrational Spectroscopy. 72:8-14
In this paper we investigated the phase formation and structural ordering in spin-coated Ba 3 ZnNb 2 O 9 perovskite films using confocal Raman microscopy. The films were deposited through polyester resins obtained from a polymeric precursor. Initiall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::217ce902714682bc57f9f60ee77a7a36
https://doi.org/10.1016/j.vibspec.2014.02.001
https://doi.org/10.1016/j.vibspec.2014.02.001