纳米氧化镁
- 网络MgO;nano-MgO
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高分子保护沉淀法制备超细纳米氧化镁
Preparation of Extra Fine Nano-sized MgO by Precipitation and Polymer Protection Method
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纳米氧化镁水悬浮液稳定性的研究
Study on Stability of Aqueous Nano - Scaled MgO Suspension
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结果表明:(1)以聚乙烯醇(PVA)为分散剂,氯化镁和碳酸钠为原料,对沉淀转化法制备纳米氧化镁进一步优化的工艺路线是可行的。
The experimental results are shown as follows : ( 1 ) It is possible that a further optimization for preparation of nanometer MgO in PTM with magnesium chloride and sodium carbonate as materials and PVA as the disperser .
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以在流动N2中热处理的Mg(OH)2醇凝胶制得的纳米氧化镁(MgOAN)为载体,制备了Ni/MgOAN催化剂。
The Ni / MgO-AN catalyst , prepared by loading of Ni onto nano-magnesia ( MgO-AN ) obtained from thermal processing of a Mg ( OH ) _2 alcogel , was used for CO_2 reforming of methane under different pressures ( 0.1 ~ 2.0 MPa ) .
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结果纳米氧化镁组小鼠血清LDH和ALP明显低于微米氧化镁组(P<0.05),但与对照组相比无明显变化(P>0.05)。
Result Serum activities of LDH and ALP were significantly lower in mice treated with nano-particle magnesia than in those with micro-particle magnesia ( P < 0.05 ), but there was no significant difference between mice with nano-particle magnesia and controls ( P > 0.05 ) .
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以亲油化度为考察指标,通过单因子实验和正交实验,确定了纳米氧化镁表面改性的最佳工艺条件为:硬脂酸0.02g,改性温度80℃,改性时间2h。
The paper takes oil-absorbed value as the inspection target , utilizes the single factor experiment and the orthogonal experiment to obtain nanometer magnesium optimum surface modification condition : the stearic acid is 0.02 g , the modification temperature is 80 ℃, and the modification time is 2 h.
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重点研究了低温水热法制备超细纳米氧化镁,在较低的温度下、用较为便宜易得的原料成功的制备了超细纳米氧化镁。
We successfully prepared ultra-fine nano-magnesia by hydrothermal method at lower-temperature .
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掺钡纳米氧化镁负载钌基氨合成催化剂的还原性能及其机理
Reduction Performance and Mechanism of Ba-Doped Nano-magnesia-Supported Ru Catalysts for Ammonia Synthesis
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纳米氧化镁对活性炭纤维表面的修饰
Surface Modification of Activated Carbon Fiber by Nanometer MgO Precipitation
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白云石碳化法制备纳米氧化镁新工艺
The preparation of nano-MgO from dolomite by carbonation method
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纳米氧化镁晶粒微结构的尺寸效应
Size effect on grain microstructure of nanocrystalline magnesium oxide
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正交法选择纳米氧化镁的最佳合成条件
Selection of optimum synthesis condition of nanometer-sized MgO powders by an orthogonal test
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冷冻干燥法制备纳米氧化镁条件的研究
Reasearch on Conditions Preparing Nano-MgO by Freeze-drying Method
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纳米氧化镁的制备及动力学研究
Study on the Preparation and Kinetics of Nanometer-Magnesia
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结论该方法是一种很好的制备无团聚纳米氧化镁粒子的方法。
ConclusionThis is a good method that can prepare nanometer magnesia particles with free-agglomeration .
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撞击流反应制备纳米氧化镁
Preparation of Nano-magnesia by Impinging Stream Reaction
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有机配合物前驱体法合成纳米氧化镁研究及此法的应用前景
Study on Preparation of Superfine Magnesium Oxide by Precursors of Organic Complexation and Its Application Prospect
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重点讨论了纳米氧化镁制备技术研究和表面活性剂在纳米材料制备中的应用。
The technology of nano-magnesia preparation and the using for surfactant of nanometer MgO are mainly discussed .
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纳米氧化镁分离富集-火焰原子吸收光谱法测定水样中痕量铜、镍、锌
FAAS Determination of Trace of Cu Ni and Zn in Water Sample After Separation and Enrichment by MgO Nanoparticle
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另外,随着氢氧化镁焙烧时间的延长、焙烧温度的升高,纳米氧化镁的粒径会随之增大。
In addition , with the calcinations time increased and temperature heightened , the crystallite size of MgO also augments . 2 .
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在此基础上,结合小试实验结果,设计了以中心龙卷流为搅拌器进行纳米氧化镁放大研究实验方案。
Establish the scaleup experiment policy of nanomagnesia preparation with Central Tornado Flow Stirring Vessel on the basis of theory and pre-experiments .
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论文首先对沉淀转化法制备纳米氧化镁的工艺作了进一步研究,然后进行了纳米氧化镁表面改性技术的研究。
In this thesis , the technology of preparing nanometer magnesia in PTM was further studied , and then surface modification of nanometer magnesia particle was discussed .
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纳米氧化镁具有良好的同时脱硫脱硝的性能,但长时间使用会导致吸附剂的活性降低,影响去除效率,需要对吸附剂进行再生。
The Nano-MgO adsorbent has good performance of simultaneous desulfurization and denitrification , however , the activity of adsorbent and the removal efficiency will reduce with a long-time use .
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实验表明,最佳工艺条件下所制得的纳米氧化镁粒径较小且分布均匀,且共沉淀法成本低廉,操作简单;
The experiment indicated that the size of the obtained nanometer MgO particle in optimal condition is small and distributed even , the cost of the sedimentation method is inexpensive and the operation is simple .
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以氯化铝为改性剂对纳米氧化镁进行无机改性后,其在水和乙醇介质中的分散性和稳定性较未改性为好,屏蔽紫外线的能力大大提高。
After inorganic modification with aluminum chloride , the dispersity and stability of nanometer magnesia particles in both the distilled water and ethanol become better , and the ability of UV shielding is greatly improved .
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实验结果表明,随着吸附剂床层温度的升高同时脱硫脱硝效率整体上逐渐升高,并且经过碱液洗涤再生后的吸附剂同时脱硫脱硝效率有所提高,纳米氧化镁吸附剂可以反复再生。
The results showed that the removal efficiencies of SO2 and NOx increased with the temperature becoming higher . The Nano-MgO adsorbent could be regenerated repeatedly . The efficiency of simultaneous desulfurization and denitrification was higher after regenerating with lye .
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根据用途,氧化镁可分为煅烧氧化镁、电熔氧化镁、重质氧化镁、工业氧化镁、活性氧化镁、硅钢氧化镁、医药氧化镁、高纯镁砂、氧化镁晶须和纳米氧化镁等。
According to different applications magnesia can be divided into calcined magnesia , fused magnesia , heavy magnesia , industrial magnesia , activated magnesia , silicon-steel magnesia , medicinal magnesia , high purity magnesia , whiskers magnesia , nanometer magnesia and so on .
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纳米级氧化镁团聚和解团聚行为的研究
Study on aggregation and dis-aggregation behavior of nano-meter magnesium oxide
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稀土掺杂对纳米钡-氧化镁载体及其负载钌基氨合成催化剂性能的影响
Effects of Rare Earth Doping on the Performance of Nano-Ba-Magnesia Supports and Ru-Based Catalysts for Ammonia Synthesis
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水热法由于其自身的优点,如反应可控、能耗较低等,越来越受到青睐,已经广泛用于纳米氧化物的制备,但是水热法在纳米氧化镁的制备研究上仍不成熟。
Because hydrothermal method has a lot of advantage , such as , the reaction is controllable and the lower consumed energy et al . It was widely used in nano-oxide preparation .