Eu(III) incorporation in sol–gel aluminum–yttrium matrix by non-hydrolytic route

Nassar, Eduardo J.; Ávila, Lilian R.; Pereira, Paula Fabiana dos Santos; Mello, César; Lima, Omar José de; Ciuffi, Kátia J.; Carlos, Luı́s D.

doi:10.1016/j.jlumin.2004.07.007

Cited by 33 publications

(19 citation statements)

References 16 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, these methods are somewhere between HSG and NHSG approach similar to the application of carboxylic acids in NHSG. However this method proved to be successful in the synthesis of amorphous mixed metal oxides [132][133][134][135][136][137][138][139][140][141][142][143]. Alcohols (and silanols) can also react with Si-H groups providing hybrid porous materials or building blocks based on Si-O-Si and Si-O-C bonds (condensation catalyzed by Et 2 NOH) [117,144,145].…”

Section: Alcohols In Nhsgmentioning

confidence: 99%

“…Their preparation was performed at temperatures as low as 180 • C and that presents an important advantage of this synthetic approach [196]. The work of Nassar et al describes the luminescent properties of NHSG derived Eu 3+ doped yttrium-aluminum oxide [132,137]. The samples were treated at 800 °C and excited at 394 nm ( 5 L6 level).…”

Section: Luminiscent Materialsmentioning

confidence: 99%

See 1 more Smart Citation

The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

et al. 2017

View full text Add to dashboard Cite

This review is devoted to non-hydrolytic sol-gel chemistry. During the last 25 years, non-hydrolytic sol-gel (NHSG) techniques were found to be attractive and versatile methods for the preparation of oxide materials. Compared to conventional hydrolytic approaches, the NHSG route allows reaction control at the atomic scale resulting in homogeneous and well defined products. Due to these features and the ability to design specific materials, the products of NHSG reactions have been used in many fields of application. The aim of this review is to present an overview of NHSG research in recent years with an emphasis on the syntheses of mixed oxides, silicates and phosphates. The first part of the review highlights well known condensation reactions with some deeper insights into their mechanism and also presents novel condensation reactions established in NHSG chemistry in recent years. In the second section we discuss porosity control and novel compositions of selected materials. In the last part, the applications of NHSG derived materials as heterogeneous catalysts and supports, luminescent materials and electrode materials in Li-ion batteries are described.

show abstract

Section: Alcohols In Nhsgmentioning

confidence: 99%

Section: Luminiscent Materialsmentioning

confidence: 99%

The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The sol-gel method has some advantages over the conventional solid-state reaction method such as easy stoichiometric control, good homogeneity, lower annealing temperatures and a shorter heating time; the prepared samples show a small size and narrow particle size distribution. Phosphor materials must have a narrow size distribution, non-agglomeration properties and spherical morphology for good luminescent characteristics [6,[9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Study of the annealing temperature effect on the structural and luminescent properties of SrWO4:Eu phosphors prepared by a non-hydrolytic sol–gel process

Pereira

Moura

Nogueira

et al. 2012

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…1 shows the SLJ energy levels of Eu 3+ in Y 2 O 3 . Recently, the spectra of Eu 3+ in YAlO 3 (YAP), Y 3 Al 5 O 12 (YAG) and Y 4 Al 2 O 9 (YAM) have been compared together at room temperature [1] and 3.5 K [2], as well as previous individual reports of these spectra and energy levels [3][4][5][6][7][8][9][10][11]. The site symmetry of Eu 3+ in these crystals is D 2 (YAG), C s (YAP) and four C 1 sites in YAM.…”

Section: Introductionmentioning

confidence: 99%