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本文采用滤纸模板制备法制备ZnO。所采用的前驱液为二水合醋酸锌Zn-(OOC-CH3)2•2H2O（A.R北京化工厂）的无水乙醇（A.R北京化工厂）透明溶液，浓度为1.5mol/l。采用的模板为定量滤纸（英国Whatman公司CarlSchleicher & Schüll无灰定量滤纸，灼烧灰分＜0.005%）。快速定量滤纸型号为Grade 589/1，孔径为12～25μm；中速定量滤纸型号为Grade 589/2，孔径为4～12μm；慢速定量滤纸型号为Grade 589/3，孔径为2μm。 首先将前驱液添加到定量滤纸上，常温下滤纸在溶液中浸没一分钟，使滤纸充分吸收前驱液，制成前驱体模板，将前驱体模版置于两个光滑薄板（用去离子水和无水乙醇多次超声洗涤，并于70 oC干燥箱烘干）之间，通过上下两层薄板压制前驱体模板，排出多余溶液和气泡，在挤压力的作用下同时缓慢抽取出前驱液模版，此时模板上已形成前驱液的分子薄层，最后于马弗炉(德国纳博热炉业设备有限公司LH 15/13型)中高温煅烧模板(300-1100oC for <5 min)，待滤纸灰份充分燃烧反应，醋酸锌乙醇溶液反应完全，最终快速生成纳米氧化锌薄膜。 |
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lyta0(金币+10,VIP+0): 11-5 09:55
lyta0(金币+10,VIP+0): 11-5 09:55
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In this paper, filter paper template preparation Preparation of ZnO. The precursor solution used for the two hydrated zinc acetate Zn-(OOC-CH3) 2 • 2H2O (AR Beijing Chemical Plant) in anhydrous ethanol (AR Beijing Chemical Plant) and transparent solution, the concentration of 1.5mol / l. The template used for the quantitative filter paper (Whatman Inc. CarlSchleicher & Schüll British ashless quantitative filter paper, burning ash content "of 0.005%). Quantitative models of filter paper Grade 589 / 1, pore size of 12 ~ 25μm; medium-speed model of quantitative filter paper Grade 589 / 2, diameter 4 ~ 12μm; slow quantitative filter paper models Grade 589 / 3, pore size of 2μm. First, the precursor liquid added to the quantitative filter paper, the filter paper at room temperature for one minute immersion in the solution, so that the filter paper to fully absorb the liquid precursor, made of precursor template, the template will be placed in two precursor smooth sheet (deionized water, and no water, ethanol, repeated ultrasonic washing, and drying oven at 70 oC), with two layers of sheet metal through the suppression of the upper and lower precursor template, discharges excess solution and air bubbles under the effect of the pressure in the squeeze at the same time slowly extracted liquid precursor template At this point the template has been formed on a thin layer of molecular precursor solution, culminating in a muffle furnace (Germany Nabo Furnace Industry Equipment Co., Ltd. LH 15/13 type) in the high-temperature calcination template (300-1100oC for <5 min), to be filter paper Ash full combustion reaction, complete reaction, zinc acetate ethanol solution, the final quickly generate nano-ZnO thin films. |
2楼2009-11-05 08:16:40