查询词典 oxides

Between the sexes oxides, dissolved in acid, alkali and ammonium chloride solution, do not dissolve in water and ethanol.

系两性氧化物、溶于酸、碱和氯化铵溶液中，不溶于水和乙醇。

XRD analysis showed most Zr(NO3)4*5H2O decomposed to ZrO(NO3)2 during the ammonolysis. The activities of Metal Oxides for the reaction were estimated.

催化剂重复使用后活性下降很快，XRD 表征显示胺解过程中大部分 Zr(NO3)4*5H2O 分解为ZrO(NO3)2。

Dimethylhexane-1,6-dimethyleurethane is the key material for preparation of 1,6-hexamethylene diisocyanate by non-phosgene route. Our work mainly focuses on the study of the catalytic performances of metal oxysalts and metal oxides for the ammonolysis of DMC to HDU-M. Experiment effect showed the ammonolysis was omposed by two steps, in which the first step was easier to occur than the second.

中文摘要六亚甲基-1，6-二氨基甲酸甲酯是非光气合成六亚甲基二异氰酸酯的关键原料，本文主要对金属含氧酸盐和金属氧化物这两类用于碳酸二甲酯胺解合成HDU-M 的催化剂进行了初步研究并优化了工艺条件。

When metal oxides were supported on γ-Al〓O〓, higher conversions of phenol were obtained, but the selectivties to anisole, a by-product, were also higher.

在使用负载型催化剂催化苯酚与DMC的酯交换反应中，γ-Al〓O〓作载体时的催化性能比SiO〓作载体时好，但产物中苯甲醚的选择性也相对较高。

The oxide layer consisted of Ti, Si and Fe oxides, which has a significant antifriction effect.

该氧化层由Ti、Si和Fe的氧化物组成，具有显著的减摩作用。

Therefore, the two antimonic composite oxides can be considered as candidaters for the anode materials of lithium ion batteries. composite oxide,; anode material ; lithium ion battery ; charging capacity ; discharging capacity ; irreversible capacity

因此 ，寻找更好的更可靠的新型锂离子电池负极材料成为人们的研究方向。1 997年，Fuji公司研究人员发现无定形锡基复合氧化物有较

Proved by experiments, the two antimonic composite oxides both had high electrochemical capacities.The reversible capacities of SbFeO 3 were 550 mAh/g and the reversible capacities of SbPbO 2.5 were 1 270 mAh/g. They were far more than carbon materials.

碳负极在有机电解质中易形成钝化膜，引起初始容量的不可逆损失，且碳材料的电极电位与金属锂相近，当电池过充电时，碳电极表面易析出金属锂，形成枝晶而引起短路[4] 。

Simultaneously, argil and kaolin are added, each having a content of more than 5 % by weight of intercalated foreign metal oxides.

同时加入各具有杂金属氧化物的含量为5％以上的白泥和高岭土。

It was found that the activity of Mg/Al composite oxides increased with the increase of surface basicity.

经分析，催化剂表面碱性强度的改变是催化活性改变的原因，随着碱性增强，降酸率增加。

Based on the principle of electronegativity equalization, a new method is developed which can be used to scale the basicity of binary oxides.

本文应用电负性均衡原理，建立了一种标度二元氧化物碱性强弱的新方法。

"Please accept this talisman as a token of our thanks."

请收下这个护身符以表达我们的感谢。

If I have that magic, I will be more acceptable in the society.

如果我拥有那种魔法，我将更加被这个社会所容纳。