1) homogeneous precipitation
均匀共沉淀法
1.
Cu-Bi nano-particles were prepared by an improved homogeneous precipitation method,using the Cu(NO3)2·3H2O,Bi(NO3)3·5H2O and CO(NH2)2 as start materials and polyethylene glycol (PEG) as dispersant.
以Cu(NO3)2、Bi(NO3)3、CO(NH)2为原料,聚乙二醇(PEG)为分散剂,采用均匀共沉淀法制备了Cu-Bi催化剂,用X-射线粉末衍射法、能量色散法、透射电镜和紫外-可见漫反射光谱法对催化剂的组成、粒径大小、表面形貌和光学吸收性能进行了详细表征,并以酸性大红和亚甲基蓝为目标降解物,考察了所制备的Cu-Bi催化剂在可见光下的光催化性能。
2) homogenous co-precipitation method
均匀共沉淀法
1.
Using analytically pure Fe2(SO4)3(AP)and NH3·H2O(AP)as raw materials,Sn-doped α-Fe2O3 powders with corundum structures were prepared by homogenous co-precipitation method under different Fe3+ concentrations,ratios of Sn4+:Fe3+,pH values and heat treatment temperatures.
H2O为主要原料,控制不同的Fe3+浓度、Sn4+:Fe3+、溶液pH值及烧结温度,利用均匀共沉淀法制备了掺锡α-Fe2O3粉体,并用厚膜工艺将粉体涂于云母基片上制成了高灵敏度甲烷气敏元件。
2.
Using analytically pure SnCl4·5H2O(AP) and NH3·H2O(AP) as main raw materials,(Sn1-x,Co2x)O2 nano-particles were prepared by homogenous co-precipitation method with different molar rates of Co2+/Sn4+.
H2O为主要原料,控制不同Co2+/Sn4+摩尔比,利用均匀共沉淀法制备了(Sn1-x,Co2x)O2纳米粉体样品,并以白云母为基片利用厚膜工艺制得气敏元件。
3) homogeneous precipitation
均匀沉淀法
1.
Orthogonal experiment Of nanometer NiO prepared by homogeneous precipitation;
均匀沉淀法制备纳米氧化镍的正交实验研究
2.
Growth kinetics of ZnS particle made by homogeneous precipitation;
均匀沉淀法制备ZnS粉末的动力学
3.
Optimization of preparing Co_3O_4 nano-particles by homogeneous precipitation;
均匀沉淀法合成纳米四氧化三钴工艺优化
4) homogenous precipitation method
均匀沉淀法
1.
Synthesis of scandium oxide nano power using a homogenous precipitation method;
均匀沉淀法制备Sc_2O_3纳米粉
2.
A novel Zr(OH)_x/NH_4Cl compound dendrite-like crystals were synthesized by hydrothermal-homogenous precipitation method,using ZrOCl_2·8H_2O and CO(NH_2)_2.
8H2O和CO(NH2)2为原料,采用水热-均匀沉淀法,制备出了一种新型Zr(OH)x/NH4C l复合结构对枝蔓晶,并用XRD、SEM、TEM、EDS对产品进行表征。
3.
Nanoscale Fe_2O_3 particles were synthesized by homogenous precipitation method with the CO(NH_2)_2 as uniformity precipitation reagent and the FeCl_3 as iron source.
以尿素为均匀沉淀剂、氯化铁为原料,采用均匀沉淀法在不同的条件下合成具有实用价值的α型纳米氧化铁。
5) homogenous precipitation
均匀沉淀法
1.
Preparation of ultrafine α-Al_2O_3 powder by homogenous precipitation;
尿素均匀沉淀法制备超细α-Al_2O_3粉体
2.
Using analytically pure Fe2(SO4)3(AP)and NH3·H2O(AP)as raw materials,a series of α-Fe2O3-Mica thin films were prepared on mica substrates by homogenous precipitation method under different Fe3+ concentrations,reaction temperatures,pH values and heat treatment temperatures.
H2O作为主要原料,控制不同的Fe3+浓度、水解温度、溶液pH值及热处理温度,利用液相均匀沉淀法在白云母形成基片上制备了系列α-Fe2O3-Mica纳米薄膜。
6) homogeneous precipitation method
均匀沉淀法
1.
Preparation of NiO nanoparticles by homogeneous precipitation method at optimized process conditions;
均匀沉淀法制备纳米氧化镍及其工艺优化
2.
Research progress in preparation of mono-dispersed particles by homogeneous precipitation method;
均匀沉淀法制备单分散颗粒研究进展
3.
Commercial production of nanometer TiO_2 by homogeneous precipitation method;
均匀沉淀法工业生产纳米二氧化钛
补充资料：均匀沉淀法
均匀沉淀法是利用某一化学反应使溶液中的构晶离子由溶液中缓慢均匀地释放出来，通过控制溶液中沉淀剂浓度，保证溶液中的沉淀处于一种平衡状态，从而均匀的析出。通常加入的沉液剂, 不立刻与被沉淀组分发生反应, 而是通过化学反应使沉淀剂在整个溶液中缓慢生成，克服了由外部向溶液中直接加入沉淀剂而造成沉淀剂的局部不均匀性。对于氧化物纳米粉体的制备，常用的沉淀剂尿素，其水溶液在70℃左右可发生分解反应而生成nh4oh，起到沉淀剂的作用，得到金属氢氧化物或碱式盐沉淀，尿素的分解反应如下：
(nh2)2co + 3h2o = 2nh4oh + co2
通过强迫水解方法也可以进行均相沉淀。该法得到的产品颗粒均匀、致密, 便于过滤洗涤, 是目前工业化看好的一种方法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条