Zobrazeno 1 - 10
of 138
pro vyhledávání: '"H.M. Luo"'
Autor:
L. Zeng, H.C. Suo, C.C. Li, X.Y. Xiong, L. Wang, H.M. Luo, J.W. Shan, X.B. Li, J.T. Liu, W. X. Wang
Publikováno v:
Applied Ecology and Environmental Research. 18:8171-8187
Publikováno v:
Chemical Physics Letters. 667:55-61
The equilibrium vapor pressures, p e , of the ionic liquid tetraoctylphosphonium bis(2-ethylhexyl)phosphate ([P 8888 ][DEHP]) over the temperature range 409–495 K were determined for the first time using mass loss Knudsen effusion. The p e versus t
Publikováno v:
physica status solidi (a). 184:187-194
Magnetic properties of the 1222-type structure compounds (Pb,M)(Sr,Pr)2(Pr,Ce)2Cu2O9 (M = Cu and Cd) and the 2222-type compound Bi2Sr2(Pr,Ce)2Cu2O10 are reported. The magnetic susceptibility measurements reveal that Pr3+ moments are ordered antiferro
Publikováno v:
Journal of Alloys and Compounds. 255:239-242
The effects of Y-doping on the phase formation in an FeSO 4 Na 2 CO 3 suspension system were determined. The phase, microstructure and thermal stability of the samples were studied by XRD, TEM and TG-DTA. It was found that Y appears to restrain th
Publikováno v:
Physica Status Solidi (a). 158:179-182
Tl-M-Sr-Cu-O (M = Cr or V) samples were prepared from ultrafine Cu powder and Tl 2 CO 3 , and studied by TEM, ED, and XRD. The results indicate that the samples consist mainly of 1201 phase and a small amount of a tetragonal phase with larger cell pa
Publikováno v:
Physica C: Superconductivity. 270:253-257
A series of new Pb based 1222 cuprates, (Pb,Mg)(Sr,R) 2 (R′,Ce) 2 Cu 2 O y , has been reported in this paper. The structure of the compounds has been determined by the powder X-ray diffraction method. It crystallizes in a tetragonal lattice with sp
Publikováno v:
Physica Status Solidi (a). 157:K5-K8
Publikováno v:
Modern Physics Letters B. 10:609-614
The effects of vanadium or chromium on the formation, electric properties and superconductivity of Pb-3212 phase ( Pb 2 Cu ) Sr 2( Ca 0.5 Y 0.5) Cu 2 O z are studied. The sites of V or Cr in PbO–CuO δ– PbO structure unit for Pb -3212 phase is al
Publikováno v:
Journal of Solid State Chemistry. 123:313-316
New Pb-based copper oxides (Pb 0.5 M 0.5 )(Sr 0.9 Ho 0.1 ) 2 (Ho 0.7 Ce 0.3 ) 2 Cu 2 O y ( M = Pb and Cd) have been synthesized successfully. The structure of the compounds has been determined using the powder X?ray diffraction data. It is found that
Publikováno v:
Journal of Alloys and Compounds. 245:20-22
(Pb,Cd)-1222 compounds with nominal compositions of (Pb 0.5 Cd 0.5 ) (Sr 0.9 R 0.1 ) 2 (R′ 0.7 Ce 0.4 ) 2 Cu 2 O 2 , (R, R′ = rare-earth elements) are synthesized and characterized. Single or nearly single-phase samples are successfully obtained