查询词典 ceria

Crystallite sizes of ceria particles annealed at 100 and 400 1C with 6–16 nm show good agreement to sizes estimated for cerium hydroxide nanoparticles.

在100和400摄氏度下退火，尺寸为6-16纳米的氧化铈颗粒的微晶尺寸同估计的氢氧化铈纳米颗粒尺寸有良好的一致性。

In this dissertation, Hydrogen production by steam reforming of ethanol has been investigated over ceria supported Ir and Ni catalysts. The catalytic performance of Ir and Ni catalysts supported on different metal oxides were also studied.

本论文重点研究了氧化铈担载的Ir和Ni催化剂上的乙醇水汽重整制氢反应，同时也考察了不同载体担载的Ir，Ni催化剂。

It is found by X-ray diffraction that the solution of Sm2O3 and Gd2O3 in ceria for the samples sintered in the range of 1 400─1 550 ℃ is better, but for the sample sintered at 1600 ℃, a new phase is formed with the reduction of lattice constants.

X射线衍射分析发现：对1 4001 550 ℃烧结的样品，Sm2O3和Gd2O3固溶较好﹔但对1 600 ℃烧结的样品，有新相生成，同时晶格常数减小。

Glass-ceramics of CaO-Al2O3-SiO2 system doped with ceria were prepared by sintering method and were characterized by differential thermal analysis, X-ray diffractometry, scanning electron microscopy and property measurements.

采用烧结法制备添加氧化铈的CaO-Al2O3-SiO2系微晶玻璃材料，并对其进行差热分析、X射线衍射分析、扫描电镜观察和性能测试。

The sample with 5% ceria sintered at 925℃ exhibits high relative density (99.1%). The dielectric constant and loss as well as thermal expansion coefficient are 6.7, 0.09% and 3.42×10^(-6)K^(-1), respectively.

添加5%氧化铈的样品在925℃烧结后，其相对密度达99.1%，其介电常数、介电损耗和热膨胀系数分别为6.7、0.09%和3.42×10^(-6)K^(-1)。

Doped ceria is a promising intermediate temperature solid electrolyte because of its higher oxygen ion conductivity and good compatibility with cathode and anode.

CeO_2基固体电解质由于具有比ZrO_2基固体电解质更高的离子电导率、很好的电极相容性而成为最有应用前景的中温固体电解质材料。

The reason of big difference on fracture toughness for ceria stabilized co-precipitated ceramics, sintered in air and argon atmosphere respectively, was analyzed in brief.

从三个包裹体系的分析得出，少量Al〓O〓掺杂CeO〓包裹是得到优化力学性能的氧化锆陶瓷的最佳包裹工艺。

The phase, particle shapes, particle size and specific surface area of the doped ceria powders were characterized by XRD, TEM and BET.

利用XRD、TEM和BET等现代物理测试方法对氧化铈纳米粉体的物相、颗粒度、分散性、颗粒形貌和比表面积等性能进行了表征，650℃焙烧的粉体呈现出良好的结晶状态，为立方萤石结构，粉体的比表面积在56.134－27.354

After further loading with the noble metal Pt, the temperatures for catalysis reduction of the ceria/zirconia porous material can be greatly decreased, which could be expected to have important applications in practical catalysis.

进一步担载上贵金属Pt后，可进一步降低铈锆催化体系的还原温度，促进氧的迁移性，这在催化反应方面具有实际应用价值。

Conductivity of the 20% calcium doped ceria was the highest, which is 0.054S/cm, 0.02S/cm lower than that of the SDC powder prepared by GNP.

在空气中，它的电导率为0.054S/cm，与采用GNP法合成的SDC粉体烧结体的电导率相比低了约0.02S/cm。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。