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Foliar application of rare earth elements on soybean (Glycine max (L)): Effects on biometrics and characterization of phytotoxicity
(2020-10-01)
This study aims at investigating the effects of foliar application of aqueous solutions of La3+ and Ce3+ nitrates on soybean plants (Glycine max). First, we observe that Triton HW 1000 surfactant at 0.01 vol% reduces ...
Geochemical and gamma-spectrometry data on the evaluation of the potential of brasiliano igneous bodies to generate for rare earth elements ion adsorption clay concentration (Apiai-Guaxupé Terrain, Minas Gerais and São Paulo states, Brazil)Dados geoquímicos e gamaespectrométricos na avaliação do potencial de corpos ígneos brasilianos para gerar concentrações de elementos terras raras do tipo ion adsorption clay (Terreno Apiaí-Guaxupé, estados de Minas Gerais e São Paulo, Brasil)
(2018-09-17)
The rare earth elements are of increasing importance in the world economy, mainly due to their applications in the technology industry, which leads to the interest in prospecting mineral sources for these elements. In this ...
Rare-earth impurities in gallium nitride: The role of the Hubbard potential
(ELSEVIER SCIENCE SALAUSANNE, 2012)
We performed a first principles investigation on the electronic properties of 4f-rare earth substitutional impurities in zincblende gallium nitride (GaN:REGa, with RE=Eu, Gd, Tb, Dy, Ho, Er and Tm). The calculations were ...
Biosorption and desorption of lanthanum(III) and neodymium(III) in fixed-bed columns with Sargassum sp.: Perspectives for separation of rare earth metals
(Wiley-Blackwell, 2012-05-01)
Rare earth (RE) metals are essentials for the manufacturing of high-technology products. The separation of RE is complex and expensive; biosorption is an alternative to conventional processes. This work focuses on the ...
Evaluation of rare earth oxides doping SnO2.(Co1/4,Mn3/4)O-based varistor system
(ABM, ABC, ABPol, 2006-09-01)
The present paper aims to verify the inuence of rare earth oxide such as lanthanum (La2O3) and neodymium (Nd2O3) doping SnO2 + 0.25%CoO + 0.75%MnO2 + 0.05%Ta2O5 system. The analysis focus on microstructural inuence on ...
Rare-earth complexes with anti-inflammatory drug sulindac: Synthesis, characterization, spectroscopic and in vitro biological studies
(2021-10-01)
New rare-earth complexes with the general formula [LnIII(sul)3]∙nH2O, where sul− is the anti-inflammatory drug sulindac and Ln3+ = Ce3+, Pr3+, Gd3+, Tb3+, and Ho3+, were synthesized, characterized, and had their cytotoxic ...
Tuning structural, optical, and gas sensing properties of ceria-based materials by rare-earth doping
(2021-12-25)
In this study, we investigate the influence of rare-earth dopants on the structural, optical, gas sensing properties of Ce1-(3/4)xRExO2 (RE = Eu, La; x = 0.0 and 0.08) nanoparticles synthesized using the microwave-assisted ...
Pre-concentration of rare earths using silica gel loaded with 1-(2-pyridylazo)-2-naphthol (PAN) and determination by energy dispersive X-ray fluorescence
(Elsevier Science BvAmsterdamHolanda, 1998)