A series of Cu/Zn based catalysts with and without Ni, prepared by the co-precipitation method, has been studied for methanol decomposition. CO and H2 are the m
［1］BASF USP 4479906［2］BASF BP 1443541［3］BASF DE 3618265［4］Wang L., Wu Z., China Leather, 26(8),11, (1997)［5］Yuan L., Din Y., Chinese Chemistry Bulletin, (2), 19(1988)［6］Kur
Zirconium monohydride bonded to the framework oxygen of MCM-41 surface was prepared by the reaction of tetraneopentyl zirconium with MCM-41 surface hydroxyl gro
Nicotinic acid was synthesized from 3-methylpyridine with potassium dichromate as the oxidant. The reaction conditions, the product separation and analysis were
目的探讨子宫内膜癌(EC)组织中RUNX家族转录因子3(Runx3)、Twist家族碱性螺旋-环-螺旋转录因子1(Twist1)表达与临床病理参数和预后的关系。方法选择80例EC患者,通过荧光定量P
随着计算机数量的增加以及计算机软、硬件要求的提高。计算机机房管理中存在的问题不容忽视。提出了解决这些问题的方去。
In a sulfuric acid medium, oxalate exhibits a strong catalytic effect on the oxidation of p-chloride aniline (ClBN) by dichromate, and the red oxidation product
超声多0普勒是一种非侵入性检查胎儿脐动脉血流、判断胎儿宫内发育的新方法.
The particles of titanium-iron (Ti/Fe) complex with different Fe contents were prepared by means of the sol-gel method and used as a photocatalyst. The activity