Study of XPS photoemission of some gadolinium compounds

Raiser, D.; Deville, J.P.

doi:10.1016/0368-2048(91)85016-m

Cited by 157 publications

(91 citation statements)

References 6 publications

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“…The most intense photoelectron binding energy peaks are the ones at 1220 and 1188 eV, corresponding to Gd (3d 3/2 ) and Gd (3d 5/2 ), respectively. The peak positions are consistent with the energy level for Gd in Gd 2 O 3 [12], thus verifying the oxidation state of the sample. The O (1s) peak is found at 532 eV.…”

Section: X-ray Photoelectron Spectroscopysupporting

confidence: 76%

High proton relaxivity for gadolinium oxide nanoparticles

Engström

Klasson

Pedersen

et al. 2006

Magn Reson Mater Phy

115

110

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Section: X-ray Photoelectron Spectroscopysupporting

confidence: 76%

High proton relaxivity for gadolinium oxide nanoparticles

Engström

Klasson

Pedersen

et al. 2006

Magn Reson Mater Phy

115

110

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“…3(e)); the peaks belonging to Gd 3d 5/2 and Gd 3d 3/2 are centered at 1,189.8 and 1,221.7 eV, respectively. The line shape, peak positions, and spin orbit splitting of 32 eV are all in good agreement with previous published data of Gd 2 O 3 nanoparticles [39]. Nano Res.…”

Section: Growth Of Rare-earth Oxide Shell On Aunrssupporting

confidence: 89%

Synthesis of gold/rare-earth-vanadate core/shell nanorods for integrating plasmon resonance and fluorescence

et al. 2015

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The nanoscale core/shell heterostructure is a particularly efficient motif to combine the promising properties of plasmonic materials and rare-earth compounds; however, there remain significant challenges in the synthetic control due to the large interfacial energy between these two intrinsically unmatched materials. Herein, we report a synthetic route to grow rare-earth-vanadate shells on gold nanorod (AuNR) cores. After modifying the AuNR surface with oleate through a surfactant exchange, well-packaged rare-earth oxide (e.g., Gd 2 O 3 : Eu) shells are grown on AuNRs as a result of the multiple roles of oleate. Furthermore, the composition of the shell has been altered from oxide to vanadate (GdVO 4 : Eu) using an anion exchange method. Owing to the carefully designed strategy, the AuNR cores maintain the morphology during the synthesis process; thus, the final Au/GdVO 4 : Eu core/shell NRs exhibit strong absorption bands and high photothermal efficiency. In addition, the Au/GdVO 4 : Eu NRs exhibit bright Eu 3+ fluorescence with quantum yield as high as ~17%; bright Sm 3+ and Dy 3+ fluorescence can also be obtained by changing the lanthanide doping in the oxide formation. Owing to the attractive integration of the plasmonic and fluorescence properties, such core/shell heterostructures will find particular applications in a wide array of areas, from biomedicine to energy.

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“…The XPS peaks centered at 1,188.02 eV (Fig. 4c) can be attributed to the Gd 2 O 3 contribution [23]. From the XPS spectra, it can be deduced that the element Gd exists as Gd 2 O 3 on the surface of the Gd 3?…”

Section: Xps Analysismentioning

confidence: 98%

Fabrication and characterization of visible-light-induced photocatalyst Gd2O3/Ag3VO4

Sun

et al. 2010

Reac Kinet Mech Cat

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Gd 2 O 3 /Ag 3 VO 4 photocatalysts are synthesized through the impregnation method and characterized by powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and UV-vis diffuse reflectance spectra (DRS). It is shown that Gd 3? is dispersed on the surface of Ag 3 VO 4 in the form of Gd 2 O 3 . The DRS analysis indicates that the ability of visible-light absorption of Gd 2 O 3 /Ag 3 VO 4 catalysts is enhanced greatly. The photocatalytic activities of the samples are evaluated by degradation of Rhodamine B dye under UV and visible-light irradiation, respectively. The experimental results show that the role of Gd 2 O 3 content has a significant impact on the photocatalytic activities of the samples. The mechanism of enhanced photocatalytic activity after the Gd introduction is discussed.

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Study of XPS photoemission of some gadolinium compounds

Cited by 157 publications

References 6 publications

High proton relaxivity for gadolinium oxide nanoparticles

High proton relaxivity for gadolinium oxide nanoparticles

Synthesis of gold/rare-earth-vanadate core/shell nanorods for integrating plasmon resonance and fluorescence

Fabrication and characterization of visible-light-induced photocatalyst Gd2O3/Ag3VO4

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