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属类:化学及生命科学-化工
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(1). Current situation and prospect of China’s methanol industry
我国甲醇工业的现状和未来
(2). The development of China’s methanol industry is reviewed briefly and the fluctuation of its production in the last decade is also summarized.
简要回顾了我国甲醇工业发展过程及90年代起落的情况,
(3). It is pointed out that the causes of no profit, deficit, outage and reduction in output occurring in most methanol facilities include cost constraint, competition pressure at home and abroad, economic environment and market changes.
指出目前绝大部分甲醇装置没有利润、亏损、停产和减产的原因在于产品成本制约、国内外竞争压力,经济环境与市场变化。
(4). Suggestions on developing big single series of production facilities and paying great attention to the research work of liquid phase synthetic technologies are made.
建议发展单系列大型化甲醇装置,重现液相合成工艺的研究,
(5). Abundant natural gas and coalbed methane should be used to guarantee the development of methanol fuel, cells and carbonylation synthesis so as to cultivate the consumption market and develop the methanol industry.
以充分的天然气、煤层气等资源为保证发展甲醇燃料、电池及羰基化合成等技术来培养消费市场,以促进甲醇工业的发展。
(6). Status quo of the plastics processing industry and suggestions on its development
塑料加工工业现状及发展建议
(7). A rapid development of the plastics processing industry is seen in China, and the output ranks the second in the world and will still maintain an increment of 10% in the future.
我国塑料加工工业发展迅速,产量居世界第2位,今后仍将维持10%的增幅。
(8). It is expected that at the beginning of the 21st century the total output of plastic articles will exceed 20 million tons. Agro-film and geo-synthetic materials are the focus for development.
21世纪末,塑料制品总产量将突破2000万吨,农膜、土工合成材料是发展重点。
(9). Obvious gaps exist compared with the world advanced level.
但与国际先进水平的差距明显,
(10). The technical equipment heavily relies on import, the productivity is low, there is a serious shortage in volume and assortment of plastic raw materials, and problems of waste plastics recovery and “white” pollution are yet to be resolved.
表现在技术装备过于依赖进口,生产率低下,塑料原料数量和品种严重不足,废塑料的回收与白色污染问题尚待合理解决。
(11). Suggestions on increasing R&D input, further developing main fields of plastic articles and lowering production cost are made.
建议加大科技投入力度,进一步开拓塑料制品的主要领域,降低产品的成本。
(12). Analysis of air pollution and pollution charge standards in China
关于我国大气污染分析及排污收费标准的制定
(13). The present situation, cause of air pollution and the problems of pollution charge in China was analyzed with a example of Beijing city. More rational standards of air pollution charge were put forward.
以北京市为例,分析了我国大气污染的现状、成因以及排污收费中存在的问题,提出了新的较为合理的排污收费标准。
(14). Current research situation of nanomaterial preparation and its developing trend
纳米材料制备研究现状及其发展方向
(15). This paper briefly introduces the structure, properties and applications of nanomaterials. Their preparation processes and existing problems are highlighted.
本文简要介绍了纳米材料的结构、性能与应用,重点研讨了其制备工艺和所存在的问题。
(16). The method of avoiding agglomeration by ultrasonic cavitation is proposed to obtain ideal nanomaterials.
提出利用超声的空化作用来有效地防止团聚现象,以期得到理想的纳米材料。
(17). ZrO2(Y2O3)is an important starting material for preparing structural and functional ceramics.
ZrO2(Y2O3)是重要的结构陶瓷和功能陶瓷的原材料。
(18). Research work related to ZrO2(Y2O3)mainly includes the research on the preparation of ZrO2(Y2O3)raw powder and the research on the development of its applications.
有关ZrO2(Y2O3)的研究包括ZrO2(Y2O3)粉体原料制备研究及应用开发研究,二者相互促进。
(19). The two research fields promote each other. In this paper progresses in the preparation of ZrO2(Y2O3)raw powder and the development of its applications at home and abroad are discussed in detail. Development trends in this field are also introduced.
本文就国内外目前ZrO2(Y2O3)粉体原料的制备方法及其相关应用进展进行了讨论,介绍了该领域的发展趋势。
(20). Preparation methods and development trends of nanometer titanium dioxide powder
纳米级二氧化钛粉体的制备方法和发展趋势
(21). Preparation methods and recent research advances of nanometer TiO2 are introduced in detail. Advantages and disadvantages in synthesizing nanometer TiO2 between gas phase and liquid phase processes are discussed.
介绍了纳米级TiO2的制备方法和研究现状,讨论了气相法和液相法合成纳米级TiO2的优缺点,
(22). The main research direction is also pointed out. China should accelerate the development of new production technologies for nanometer TiO2 tallying with actual domestic conditions.
指出当前纳米级TiO2的主要研究方向。我国应加快开发适合国情的纳米级TiO2生产新工艺。
(23). Progress in the study on nanometer zinc oxide
纳米级氧化锌的研究进展
(24). Nanometer zinc oxide has many unique properties and extensive uses. Current research progresses, preparation processes and characterization methods of nanometer zinc oxide are reviewed in the paper. Suggestions on research orientation are also raised.
纳米氧化锌具有许多优异的性能,用途广阔。本文综述了纳米氧化锌的研究现状,制备方法,表征方法,并提出了研究方向。
(25). Integration and operation optimization of utility systems
蒸汽动力系统的综合及操作优化
(26). One important approach of saving energy and improving economic performance for petrochemical enterprises in the 21st century is the integration and operation optimization of utility systems.
蒸汽动力系统的综合和操作优化是21世纪石油化工企业节能增效的重要途径。
(27). This paper summarizes the merits and drawbacks of various optimization methods for utility systems such as process energy integration, mathematical programming, genetic algorithm and simulated annealing
本文概述了蒸汽动力系统的优化方法,如过程能量综合技术、数学规划法、遗传算法、模拟退火法等方法的长处和不足
(28). Study on the rheological properties of reactive PP/EPDM blends
反应性对丙烯酸/三元乙丙橡胶共混物的流变性能研究
(29). Effects of EPDM content, crosslinking agents and crosslinking aids on the rheological properties of reactive PP/EPDM blends are studied by means of a high-pressure capillary rheometer.
采用高压毛细流变仪,研究了EPDM含量、交联剂、交联助剂等因素对反应性PP/EPDM共混物性能的影响。
(30). The result shows that the reactive blending has a marked effect of viscosity reduction when the EPDM content in disperse phase is 20~25 phr.
结果表明,EPDM分散相浓度为20~25phr,反应共混工艺对体系的消缠降粘效果显著
(31). The higher the crosslinking agent A content, the smaller the apparent viscosity, but the viscosity is not sensitive to shearing.
交联剂A的含量越高,体系表观粘度越小,但粘度对剪切的响应不敏感
(32). Crosslinking agent B and crosslinking aid S can inhibit PP degradation and optimize the mechanical properties of reactive PP/EPDM blends while keeping their melt flowability higher than ordinary PP/EPDM blends.
交联剂B和并用交联剂S可抑制PP降解,进一步优化材料力学性能,并仍保持体系加工流动性高于简单共混PP/EPDM。
(33). Methanol synthesis under forced periodic operation with flow alternation
流向变换强制周期操作合成甲醇
(34). The process is carried out spontaneously in a fixed bed packed in different sections with methanol synthesis catalyst MK-101 and filler α-Al2O3 by using CO, CO2, H2 and N2 mixed gas as raw material.
该技术分段填充MK-101型合成甲醇催化剂和α-Al2O3填料的固定反应床,用CO、CO2、H2、N2的混合气体为原料,使反应自发地进行。
(35). The raw material concentration is one order of magnitude lower than the concentration in the traditional fixed state process.
原料浓度比传统定态过程低一个数量级
(36). The reactor is highly immune to the interference caused by changes in feedstock concentration, temperature and flow rate and external conditions.
反应器对进料的浓度、温度、流量和外界条件变化的抗干扰能力很强。
(37). Technology of extracting oxalic acid from waste water in pharmaceutical plants
从制药厂废水中提取草酸的工艺研究
(38). Following optimal operation conditions are found through orthogonal tests: the excess coefficient of added precipitator 1.2~1.3, the pH value at the reaction end 3~4, the reaction time 30min and the reaction temperature 50℃.
通过正交实验,找出了从提取草酸的优化操作工艺条件:沉淀剂的加入过量系数为1.2~1.3,反应终点pH值3~4,反应时间30min,反应温度50℃。
(39). The yield of oxalic acid is over 90% in pilot tests and the product quality meets GB-1626-88 standard for the first-grade product.
中试工业化实验中草酸的提取率达90%以上,所得到的草酸的质量达到GB1626-88标准的一级品要求。
(40). Study on catalysts for methanol oxidation reforming
甲醇氧化重整催化剂的研究
(41). Catalysts for methanol oxidation reforming are prepared and selected. Tests show that at the same temperature catalysts in order of activity, selectivity and hydrogen yield are Cu>Cr-Zn>Pd.
制备并优选了甲醇氧化重整的催化剂,实验表明在相同的温度下,Pd催化剂、Cr2O3-ZnO氧化物催化剂和Cu催化剂相比,活性、选择性以及氢产率都表现为Cu>Cr-Zn>Pd。....(please sign in for more)
(42). Cu catalyst has fairly good activity and selectivity at relatively low temperatures. Cr-Zn catalyst has fairly good activity and selectivity at relatively high temperatures and its thermal stability is also good.
其中,Cu催化剂在低温时、Cr-Zn催化剂在高温下表现出良好的活性和选择性,而且Cr-Zn催化剂的热稳定性较好。....(please sign in for more)
(43). Study on the improvement of one-step alkyl glucoside synthesis and the impact of colloid and surface chemistry factors
一步法烷基糖苷合成工艺改进与胶体与表面化学现象研究....(please sign in for more)
(44). The change of the glucoside size distribution and quantity, the change of the system viscosity with conversion rates and the rheological property at the later reaction stage are measured by following the process of one-step alkyl glucoside synthesis.
跟踪测定了烷基糖苷一步法合成反应中葡萄糖粉粒径分布和颗粒数量的变化、系统粘度随转化率的变化和反应后期的流变性。....(please sign in for more)
(45). The impact of colloid and surface chemistry factors on the reaction is analyzed. Suggestions on process improvements are raised.
分析胶体与表面化学因素对反应的制约,提出了有待改进的工艺环节和改进方向。....(please sign in for more)
(46). Applications, production processes, consumption norms and technical specifications of diflubenzuron are introduced briefly.
简要介绍了除虫脲的用途、生产过程、消耗定额、产品质量指标....(please sign in for more)
(47). An economic analysis of 100 t/a diflubenzuron (bulk material)production lines is made.
对100t/a除虫脲(原料药)生产线作了经济分析....(please sign in for more)
(48). Using imported intermediate 2,6-dichlorobenzonitrile as starting raw material to replace cyclohexanol can shorten process flow and production cycle, reduce equipment investment and therefore improve economic benefits.
若将环己醇为起始原料改为直接进口中间体2,6-二氯苯甲腈,将能大大缩短生产流程及生产周期,降低设备投资,从而提高经济效益。....(please sign in for more)
(49). The production and consumption of polyacrylamide at home and abroad are summarized. Polyacrylamide is mainly used for water treatment in the United States and Europe and for paper making in Japan.
综述了国内外聚丙烯酰胺生产与消费情况;美国、欧洲聚丙烯酰胺主要用于水处理,日本主要用于造纸工业,....(please sign in for more)
(50). In China, however, it is mainly used for oil recovery in oilfields and the consumption in this field accounts for 81% of the total.
而中国主要用于油田聚合物驱采,占总消费量的81%....(please sign in for more)
(51). It is expected that the total demand of polyacrylamide in China will reach 142 000 tons in 2005. The consumption ratio in water treatment and paper making will have an increase.
预测至2005年,我国聚丙烯酰胺总需求量将达14.2万t,水处理与造纸工业的需求比例将上升。....(please sign in for more)
(52). Chemical methods reducing diesel engine exhaust pollution
减少柴油机排气污染的化学方法....(please sign in for more)
(53). Main constituents contained in diesel and gasoline engine exhaust are CO, HC, NOx, SOx and particles.
柴油机、汽油机燃烧过程排放物主要有CO、HC、NOx、SOx及粒子等,....(please sign in for more)
(54). Harmful substances contained in diesel engine exhaust are far less than in gasoline engine exhaust, but higher than in exhaust from gasoline engines equipped with a three-component catalyst system.
而柴油机排气中的有害物远低于汽油机,但高于汽油机加三元催化剂体系。....(please sign in for more)
(55). Methods for controlling NOx and particles in diesel engine exhaust are highlighted in the paper.
本文重点介绍了柴油机排气中NOx和粒子的治理方法。....(please sign in for more)
(56). Quality inspection of poly-ferric chloride
聚合氯化铁产品的质量检验....(please sign in for more)
(57). Technical specifications of poly-ferric chloride are proposed and the inspection method is introduced in detail.
提出了聚合氯化铁产品的技术指标,详细介绍了聚合氯化铁产品的检验方法。....(please sign in for more)
(58). Analysis of the work desire of Japanese employees
日本职员工作欲望分析....(please sign in for more)
(59). Gas Chromatographic Analysis of Samples from Synthesis of Linalool
气相色谱法分析芳樟醇合成工艺中的样品....(please sign in for more)
(60). Samples from linalool synthesis were determined using area normalization method by capillary gas chromatography with FID detection and an HP-FFAP capillary column (30 m×0.32 mm i.d.×0.25 μm)under programmed temperature.
建立了用毛细管气相色谱法测定芳樟醇合成工艺路线中过程样品组分含量的方法。采用HP-FFAP(30m×0.32mm i.d.×0.25μm)毛细管柱,以氢火焰离子化检测器检测....(please sign in for more)
(61). The carrier gas was nitrogen, the flow-rate was 0.6 mL/min , and the spilt ratio was 150∶1.With this method, the samples were well separated and the analysis time was only 18 minutes.
N2为载气,流速0.6mL/min,分流比150∶1,并采用程序升温,以校正面积归一化法计算各组分的含量。在确定的色谱条件下,样品中各组分分离较好,分析周期仅18min。....(please sign in for more)
(62). RSDs for compounds of 1-choloro-3-methyl-2-butene, 6-methyl-5-hepten-2-one, linalool and dehydrolinalool, were lessthan 0.5%, and the recoveries were 99.7%-100.9%.
含量在50%以上的1-氯代异戊烯、甲基庚烯酮、芳樟醇、去氢芳樟醇等主要组分含量测定的相对标准偏差小于0.5%,回收率为99.7%~100.9%。....(please sign in for more)
(63). The method is suitable for the analys is of samples from the synthesis process of linalool and its products.
方法可以用于芳樟醇合成工艺中过程样品及芳樟醇成品的分析。....(please sign in for more)
(64). Study on synthesis of Magnesium Borate Whisker Material and on the Ternary System K+,Mg2+//B4O72--H2O at 25℃
硼酸镁晶须材料的合成研究,三元体系K+,Mg2+//B4O72-H2O25℃相关系的研究....(please sign in for more)
(65). Which has much super specific prosperity, such as high heat-resisting, corrosion-resisting, super mechanical strength, super insulation, light weight, high strength, high coefficient of elasticity, high hardness etc.
它有优良的耐高温、高热、耐腐蚀性能、有良好的机械强度、电绝缘性、轻量、高强度、高弹性模量、高硬度等特性,....(please sign in for more)
(66). The plastic, metal and ceramics reinforced by whisker have a extremely super performance in physics, chemistry and mechanics. As a result of that, study of synthesizer and application of whisker is one of hot topics in the material science.
作为塑料、金属、陶瓷的改性增强材料时显示出极佳的物理、化学性能和优异的机械性能,因而其合成研究和在材料中的应用研究已成为材料科学研究的热点之一。....(please sign in for more)
(67). In the field of compound technology in material, improvement of material performance, reduction of material production cost etc. We have fall behind the other country.
我国在材料的复合工艺、提高材料的性能、降低材料的成本以及复合材料组分的品种、性能等各个领域的研究起步较晚,技术上与国外差别较大,....(please sign in for more)
(68). In order to catch up with the development of High-tech new material, we should attach great important to study of whisker.
为适应高技术新材料迅速发展的要求,作好晶须的研究开发工作显得尤为重要,其意义广泛而深远。....(please sign in for more)
(69). The magnesium borate whisker is a kind of whisker with super property and low production cost.
硼酸镁晶须是一种性能价格比高的晶须新品种,....(please sign in for more)
(70). We have synthesized it successfully by means of melting flux in our study. With length 10-50μm,diameter 0.5-2μm,which had beed confirmed by Xray diffraction, FT-IR,SEM scan morphology and chemical analysis.
本研究采用溶盐法,成功的合成出硼酸镁晶须,其长为10-50μm,合成制备的产物经X-射线衍射、FT-IR红外光谱定性鉴定、化学定量滴定分析和SEM扫描电镜观察,确认为硼酸镁(Mg2B2O5)晶须。....(please sign in for more)
(71). We determined a series of technology data for synthesis of magnesium borate whisker.
本研究确定了硼酸镁晶须合成的一系列工艺条件。....(please sign in for more)
(72). It is affirmed that the reaction in accordance with the following chemical reaction equation: 2MgCl2·6H2O+2H3BO3→Mg2B2O5+4HCl+13H2O
实验研究表明,反应原料的配比和产品晶须的收率、副产品盐酸的收率、物料组成分析、物料消耗定额等均较好的遵循了如下反应方程式:2MgCl2·6H2O+2H3BO3→Mg2B2O5+4HCl+13H2O....(please sign in for more)
(73). The specific synthetic conditions are as follows: ①Mg:B(mol)=1:1-1.05 ②KCl,NaCl or NaOH could be used as flux
其具体的合成工艺条件为:①Mg:B(摩尔比)按化学计量比以1:1-1.05配料,结果满意;②氯化钾、氯化钠、氢氧化钠均可作为助溶剂....(please sign in for more)
(74). ③(Mg+B):flux(mol)=1:1-3.5 ④reaction temperature:800-950℃; ⑤reaction time:6-10 hour
③助溶剂的配比以(Mg+B):助溶剂(摩尔比)=1:1-3.5为宜;④反应温度在800-950℃;⑤反应时间为6-10小时....(please sign in for more)
(75). The magnesium borate whisker being a super property is a very good materials for reinforcement.
硼酸镁晶须性能较优越,是很好的增强增韧材料,....(please sign in for more)
(76). After study on aluminum based, magnesium based compound material reinforced by the magnesium borate whisker. It affirmed that it has the potential of anticipation result.
有关单位对硼酸镁晶须增强铝、镁基复合材料及工程塑料进行了相关研究,取得了预期的增强效果,展示了良好的应用前景。....(please sign in for more)
(77). Among abundant resources of salt lakes in China, the sulphate salt lakes is one of the typical salt lakes especially magnesium sulphate with rich boron. The composition and crystallizing route of which is complicated.
在我国丰富的盐湖资源中,硫酸盐型盐湖是非常典型的一种,硫酸镁亚型富硼卤水在世界上并不多见,其卤水组成和盐类结晶路线较为复杂,....(please sign in for more)
(78). As a result of that, there are many subject to be researched. In this field, field few has beed done by other nations.
这就提供了许多镁硼酸盐的研究课题,在这一方面,世界其它国家研究相对较少。....(please sign in for more)
(79). In the first stage of evaporating concentration, the borate was existed mainly in the form of tetraborate B4O72-said as “synthesize statistics”.
硫酸盐型盐湖在蒸发浓缩过程初期卤水中的硼酸盐主要是以四硼酸盐B4O72-的“综合统计”形式存在的,....(please sign in for more)
(80). Therefore, we have studied the subsystem K+,Mg2+// B4O72--H2O of complex reciprocal system Li+,Na+,K+,Mg2+//Cl-,SO42-,B4O72--H2O.
为此我们研究了Li+,Na+,K+,Mg2+//Cl-,SO42-,B4O72--H2O这一复杂交互体系的一个次级体系即三元体系K+,Mg2+//B4O72--H2O,....(please sign in for more)
(81). According to the specific feature of Chinese salt lakes, researching Mg-borate’s solubility and transformation in salt solution, which has great importants to ultilize salt lake resources.
针对我国盐湖硼资源特点,广泛深入地开展硼酸盐化学的研究,研究镁硼酸盐在不同盐溶液中的溶解及转化规律,这将对盐湖卤水中硼、镁等资源的提取和加工,....(please sign in for more)
(82). The solubilities in the ternary system K+,Mg2+// B4O72--H2O at 25℃ has been researched. The system is the simple eutonic type.
经对三元体系K+,Mg2+//B4O72--H2O25℃的溶解度进行研究,认为该体系属简单共饱型。....(please sign in for more)
(83). The solubility isotherm of the system consists of two branches and has two crystallization areas, corresponding to MgB4O7·9H2O and K2B4O7·4H2O.The composition of the eutonic point is K2B4O7 13.96%,MgB4O7 0.53%.
两段溶解度曲线对应于体系的两种原始组分K2B4O7·4H2O、MgB4O7·9H2O的结晶区,共饱点组成为K2B4O713.96%,MgB4O70.53%。....(please sign in for more)
(84). Because the solubility of original component MgB4O7·9H2O and K2B4O7·4H2O is very different, the K2B4O7·4H2O lays salt-out effect to MgB4O7·9H2O,so the crystallizing area of MgB4O7·9H2O is larger than that of K2B4O7·4H2O the former:7.28%;the later:0.04%.
由于两种原始组分在水中溶解度相差甚远,而且在三元体系中K2B4O7表现出对MgB4O7有强烈的盐析作用,故MgB4O7·9H2O的结晶区占有较大的面积,为7.28%。而K2B4O7则相对很小,为0.0....(please sign in for more)
(85). When coexist of hungtsaoite (MgB4O7·9H2O)and potassium tetraborate(K2B4O7·4H2O), Since K2B4O7·4H2O has made the solution as alkalinity, lead MgB4O7·9H2O to be transformed.
计算值与测定值的偏差的绝对值不超过0.0013m。当章氏硼镁石与四硼酸钾共存在时,由于K2B4O7·4H2O的存在,使溶液呈碱性,导致章氏硼镁石发生相转化,....(please sign in for more)
(86). After experiment repeatedly, we firmly believed that the transformation happened when equilibrium time over 20hours.Therefore,the equilibrium time had been determined within 8-18 hours in this experiment.
经实验反复对照考察,溶液平衡20小时以上时即发生相转化。为此我们确定平衡体系的平衡时间为8-16小时。....(please sign in for more)
(87). It was also identified by X-ray diffraction. As a result of that, we may conclude that the hungtsaoite had transformed to inerdite.
同时对该固相作X-射线粉晶衍射鉴定,所得谱图与多水硼镁石(2MgO·3B2O3·15H2O)标准谱图基本一致,综上所述,证明该物质转化为多水硼镁石(2MgO·3B2O3·15H2O)。....(please sign in for more)
(88). Investigations into the body colour of shrimps living in natural pond
简沼虾体色调节之初探....(please sign in for more)
(89). Investigations into the body colour of shrimps live in natural pond was carried out through the experiments of homochromous light, environment changes of light and shade, extractions of eyestalk and muscle of shrimps
本实验通过单色光、明暗环境变化、虾的眼柄提取液、虾的肌肉提取液、....(please sign in for more)
(90). By chemical analysing the transformation solids, we know that MgO%=14.7%, B2O3%=45.27%, H2O%=39.93%.It means the molecular formula is MgO·1.77B2O3·6.04H2O.Which is quite similar to inerdite(2MgO·3B2O3·15H2O).
对转化的平衡固相取样作化学组分分析,结果为MgO%=14.7%,B2O3%=45.27%,H2O%=39.93%,拟合其分子式为MgO·1.77B2O3·6.04H2O。考虑到夹带K2B4O7的影响,....(please sign in for more)
(91). extractions of eyestalk of crab, seawater, adrenalin and ethanol of different concentrations.
蟹的眼柄提取液、海水、肾上腺素以及不同浓度的乙醇溶液对沼虾体色变化的影响,....(please sign in for more)
(92). The results showed that there was no species difference of eyestalk extraction, ethanol had the function of restraining to body colour.
发现了沼虾体色调节的部分机制,眼柄提取液的无种间特异性,以及乙醇对虾的体色的抑制作用。....(please sign in for more)
(93). The results also showed that there was some distributing rules of pigment cells and some special pigment cells of shrimp living in natural pond.
本实验还通过认真观察对比发现了沼虾色素细胞分布的规律和一些特殊的色素细胞。....(please sign in for more)
(94). The object of this dissertation is to explore new synthetic methods to nanoscale semiconductors.
本文旨在探索半导体纳米材料的化学合成新方法。....(please sign in for more)
(95). It is found that, based on the study of so much currently available literatures, there are some challenges existed in the present research of nanoscale semiconductors, especially for the synthetic strategy.
通过大量文献调研,发现在半导体纳米材料的化学合成研究领域中存在的问题与机遇。....(please sign in for more)
(96). Solvohermal elemental direct combination, room temperature organic solvent conversion, solvothermal reduction and self-reduction, mild temperature pyrolysis-reduction-catalysis and hydrothermal self-regulation process
溶剂热元素直接反应、有机溶剂室温转化、溶剂热还原、自还原、中温热解催化合成、水热化学反应自控制....(please sign in for more)
(97). Developing solvohermal elemental direct combination route to II-VI semiconductor nanocrystals
发展了溶剂热元素直接反应合成II-VI族半导体纳米晶合成路线....(please sign in for more)
(98). The formation of these products depend on the complex ability of the solvents and the particle sizes are determined in a large scale of the reaction temperature and duration time.
实验表明:反应溶剂的配位能力决定目标产物能否形成。反应的温度和反应时间对产物的粒径影响较大。....(please sign in for more)
(99). Similarly, cadmium chalcogenides can be also prepared through the reaction of cadmium and chalcogen in pyridine and some other amine solvents.
类似地,用金属镉和硫属元素(S,Se,Te)在吡啶和胺类溶剂中直接反应,可以得到CdE。....(please sign in for more)
(100). Take CdS for account, hexagonal spherical CdS with average particle size of 50nm was formed in pyridine, cubic rod-like in 1,6 hexyl diamine, mixtures of cubic and hexagonal spherical particles in biethylamine .
以CdS为例,在吡啶中形成六方相球形CdS纳米晶,平均粒径约为50nm;在1-6已二胺中得到的是棒状立方纤锌矿的CdS;在二乙胺中,得到的是立方和六方的混合相,产物形貌为球形粒子。....(please sign in for more)
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