前驱

For the development of effective catalysts to be used in biomass gasification ,NiO nanoparticles were prepared by a homogeneous precipitation method involving an aqueous solution of nickel nitrate hexahydrate and urea.

为研制生物质气化用纳米N iO催化剂，文中以六水合硝酸镍为原料、尿素为沉淀剂，采用均匀沉淀法制备了纳米N iO，并利用TGA，XRD，TEM等分析手段对前驱体和产品的性能进行了表征。

The preparation of cabalt nanoparticles by the reduction of Cobalt chloride hexahydrate with Sodium borohydride in the reverse microemulsion solutions of water/ Didodecyldimethylammonium bromie/ toluene was investigated. i changed the Cobalt chloride hexahydrate concentration in the Didodecyldimethylammonium bromie/ toluene system to analysis the particle size.

在water/ Didodecyldimethylammonium bromie/ toluene的逆微乳化系统中，本人以硼氢化钠来还原系统中的Co的金属前驱盐氯化亚钴来做研究，在实验中本人改变在Didodecyldimethylammonium bromie / toluene系统时的氯化亚钴浓度以改变粒子的大小，本人也尝试改变反应的速度来研究对奈米粒子生成时所造成的影响。

It is indicated that the acetate anion and the weak organic alkali hexamethylenetetramine play the critical role in the formation of the layered precursors at the beginning of the process.

结果表明，在上述反应中醋酸根阴离子和弱有机碱六次甲基四胺对前驱体和ZnO纳米带的形成起了关键作用。

With oxalic acid and hexamethylenetetramine as the catalysts, and phenolic resin and tetraethoxysilane as the starting materials, a two-step sol-gel processing is developed for preparing Si〓N〓/SiC precursors with homogeneous microstructure composed of nanometer sized particles.

用草酸和六次甲基四胺为催化剂，酚醛树脂和正硅酸乙脂为原料，探索出了制备结构均匀而精细的Si〓N〓／SiC前驱体的溶胶—凝胶两步法。

To minimize the contamination of detrimental elements such as sulfurand chlorine, a two-step sol-gel process was successfully developed to synthesize SiC precursors with oxalic acid and hexamethylenetetramine HMTA as the catalysts, which are free of sulfur and chlorine. Tetraethoxysilane TEOS and phenolic resin were used as the silicon source and carbon source, respectively.

为了尽量减少硫、氯等有害元素的含量，本文用不含有害元素的草酸和六次甲基四胺HMTA为催化剂，正硅酸乙酯TEOS为硅源，酚醛树脂为碳源，成功探索出了制备SiC前驱体的两步法溶胶-凝胶工艺。

LiFePO4 materials are prepared by hydrogenous reduction (a method of preparing LiFePO4 material with prue H2 gas as protective and reducing gas) with FePO42H2O.

在溶液中制备FePO42H2O前驱体，利用氢气还原法于650℃制得了锂离子电池正极材料LiFePO4，并对其进行了包覆和掺杂。

The effects of precursors, hydrothermal synthetic conditions and heat treatment on properties of products have been in...

考察前驱物、水热反应及热处理过程中的各因素对产物性能的影响，并对其合成条件进行了探讨。

Ordering of spheres, filling of interstices in colloidal crystals with precursor and removal of the template are all key factors for the synthesis of the 3DOM complex oxides.

其中，胶体晶体模板的组装、前驱体的填充以及模板的去除都是制备3DOM复合氧化物的关键影响因素。

It contains a natural source of cyanide, whose precursor, linamarin, is rendered harmless if properly dried, soaked, and baked.

它还含有天然源氰化物，其前驱物， linamarin ，是使之无害，如果妥善晒干，浸泡，烤。

Chapter Three and Chapter Four istablish one of the key ideas according to the discussion of the tendency of Li's thought and it's form process. It contends that Li Boyuan is the pioneer of Liberal literator of the early ages in China.

第三章和第四章围绕李伯元的思想倾向及其形成过程展开讨论，提出了本论文的核心观点之一，即：李伯元是中国早期"自由派"文人的前驱。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。