Luminescence functionalization of the ordered mesoporous SBA-15 silica is realized by depositing a CeF3: Eu3+ phosphor layer on its surface (denoted as CeF3: Eu3+/SBA-15/IS, CeF3: Eu3+/SBA-15/SI and CeF3: Eu3+/SBA-15/SS) using three different methods, which are reaction in situ (I-S), solution impregnation (S-I) and solid phase grinding synthesis (S-S), respectively. The structure, morphology, ...

Water–gas shift (WGS) reaction was performed over 5% Ni/CeO2, Ni/Ce-5% Sm-O, Gd-O, 1% Re 4% Sm-O and Gd-O catalysts to reduce CO concentration produce extra hydrogen. CeO2 M-doped ceria (M = Sm Gd) were prepared using a combustion method, then nickel rhenium added onto the mixed oxide supports an impregnation method. The influence of rhenium, samarium gadolinium on structural redox properties m...

We present a study of Cu-substitution effects in 4f-Ce intermetallic compound CeAu1-xCuxGe, with potentially unusual electronic states, the whole concentration range (x = 0.0 - 1.0). The parent CeAuGe compound, crystallizing non-centrosymmetric hexagonal structure, is ferromagnetic semimetal Curie temperature 10 K. Cu-doping on Au-site CeAuGe, changes crystal structure from (P63mc) to centrosym...

Major advances in laser technology at LLE have included the demonstration of high-efficiency frequency doubling and tripling of fusion lasers1 and the development of short-pulse, chirped-pulse-amplification (CPA) lasers2 These technologies were combined a few years ago with the demonstration of 75% efficient frequency doubling of 1.6-ps laser pulses on the CPA T~ (table-top terawatt) system at ...

ABSTRACT CeO2 was synthesized by combined sol-gel and solvothermal processing of gels obtained from acetaldoximate-modified cerium(IV) t-butoxide in the presence of the non-ionic surfactant Pluronic F127. The use of cerium(IV) t-butoxide as precursor contrasts very favorably with the often used ceric ammonium nitrate and results in more reliable and tailorable properties of the final materials....