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Keywords MgAl 2O 4 spinel;activated carbon;water gas shift （WGS ） catalyst.; 镁铝尖晶石;活性炭;负载型变换催化剂;
Keywords MgAl 2O 4 crystal;substrates;crystal pulling; 铝酸镁晶体;基片;引上法晶体生长;
Keywords MgAl 2O 4 crystal;defect;scattering particles; 铝酸镁晶体;缺陷;散射颗粒;
The particular sintering mechanism of rich-alumina MgAl 2O 4 and its effect on slag resistance are described. 研究了富铝尖晶石的反应烧结特性，评价了这种特性对抗渣性能的作用。
Keywords transparent MgAl 2O 4 ceramics;electron irradiation;isochronal annealing;aggregate F center; 镁铝尖晶石透明陶瓷;电子辐照;等时退火;F聚集心;
MgAl 2O 4 crystal MgAl_2O_4单晶
The barium in the sample mainly exists as BaAl 2O 4 except few BaCO 3 phase. 结果表明 ,样品中的主要成分是BaAl2 O4 ,有少量BaCO3存在。
For the samples aged in air for 10 months, the peak intensities of BaCO 3 increase and BaAl 2O 4 decrease obviously. 于空气中陈放 10个月后 ;样品中 Ba Al2 O4的衍射峰强度显著下降 ;而 Ba CO3的衍射峰明显增强 .
The structure of quenched glass from molten BaB 2O 4 has been studied by molecular dynamics simulation. 采用分子动力学模拟方法研究了熔融BaB2O4急冷玻璃结构。
Reversible oxidation-reduction reaction of polyviologen occurred with existence of Na 2S 2O 4,accompany with reversible color change. 聚紫精在Na2 S2 O4 存在下发生可逆氧化还原反应 ;并伴随可逆颜色变化 .
In H 2SO 4-H 2C 2O 4 medium, a sensitive absorption complex wave Sn(IV)-DPG could be obtained by single sweep oscillopolarography. 在H2SO4－H2C2O4介质中，用单扫描示波极谱法，Sn（IV）－DPG体系可产生灵敏的络合吸附波。
Transparent and conductive oxides CdIn 2O 4 (CIO) thin films were prepared by RF reactive sputtering from a Cd-In alloy target in Ar+O 2 atmosphere. 在Ar+O2 气氛 ;采用射频反应溅射Cd In靶制备CdIn2 O4 (CIO)薄膜 .
XRD analysis shows that barium in the Pt Ba Al|O 1000 samples mainly exists as BaAl 2O 4 besides a trace of BaCO 3 phase. XRD结果表明 ,载体 Ba- Al- O经过 10 0 0℃焙烧后 ,Ba主要以 Ba Al2 O4形式存在 ,所含 Ba CO3较少 ;
It is shown that the barium exists in the forms of BaAl 2O 4 and BaCO 3 phases. The BaAl 2O 4 crystallites should be the centers for NO x storage. 样品中Ba物种是以BaAl2 O4 和BaCO3 两种混合物相的形式存在 ,高分散的BaAl2 O4 相是NOx 的主要储存活性中心
Strong green up-conversion emission was observed for the first time in europium and dysprosium co-doped strontium aluminate (SrAl 2O 4:Eu 2+,Dy 3+) phosphor under 980 nm infrared excitation at room temperature. 铕镝共掺的铝酸锶是一种新型的绿色长余辉荧光材料 ,经可见 -紫外光激发后 ,能发出超长时间的余辉。本文首次用 980nm的红外激发光源激发SrAl2 O4 :Eu2 + ,Dy3+ 磷光体后 ,在室温下观测到了SrAl2 O4 :Eu2 + ,Dy3+ 的绿色上转换荧光。
The composition and acidic properties of the catalysis have been characterized by XRD, XPS and TPD. It shows that the Co exists in the form of Co 3O 4, CoAl 2O 4 besides the mainly forms CoO. 利用XRD ,XPS ,TPD等表征手段分析了催化剂的组成及其酸性 ,结果表明 :催化剂中的Co除了以CoO的形式存在外 ,还有Co3O4和CoAl2 O4的形式 ;
The absorption edge of TiO 2 thin films can be modified in a large range upon the addition ZnFe 2O 4 nanoparticles and subsequently heat-treatment. The results are analysed and discussed. 通过热处理和掺杂纳米ZnFe2O4 可以实现对纳米TiO2 薄膜光吸收边大范围的调制。
Keywords BaB 2O 4 crystal;crystal pulling;birefringent property; 4晶体;引上法晶体生长;双折射性能;
Keywords LiMn 2O 4;oxygen atmosphere;kinetics;synthesis; 锰酸锂;氧气气氛;合成动力学;
Keywords molecular dynamics simulation;BaB 2O 4 crystal;density of state; 分子动力学模拟;偏硼酸钡晶体;态密度;