查询词典 carbon

A Ni/Ce-Zr-Al-Ox catalyst was prepared by hydrothermal synthesis－impregnation method. The CO2 reforming of CH4 reaction was performed. By XPS and TPH methods the carbon species deposited on the surface of catalyst during the reaction were characterized; The effect on the carbon deposit by adding a small amount of steam in feed gas and the interaction between steam and carbon species were studied.

采用水热合成-负载法制备了Ni/Ce-Zr-Al-Ox催化剂，进行了CO2重整CH4的反应，并采用X射线光电子能谱、程序升温加氢等方法表征了在反应过程中催化剂表面的积碳物种，考察了添加少量水蒸汽对积碳的影响以及水蒸汽和表面积碳物种的作用。

With this method the copper plating graphite powder was made up in 50% copper content .The silver- copper plating graphite composite was prepared while the silver- copper-graphite composite and the silver-graphite composite were also made up together .The mechanical and electric characteristics of the three kinds of composites were tested and it was found that the copper plating graphite powder can only optimize the properties of the silver matrix composite under the high content of the graphite ,the conductivity and the mechanical property was improved and the material could take higher current in the same carbon content .At 20% carbon content, the resistivity of Ag-graphite composite was 1.67 times as high as that of silver- copper plating graphite composite, the resistivity of Ag-Cu-graphite composite was 3.23 times as high as that of silver- copper plating graphite composite. The bending strength of silver-copper plating graphite composite was 2.17 times as high as that of silver- copper-graphite composite, and the bending strength was 2.11 times as high as that of silver- copper-graphite composite. The wearability of silver- copper plating graphite composite was also enhanced greatly at high carbon content.

利用该方法制备了50%铜含量的镀铜石墨粉，然后进一步制备了一系列相同碳含量的银-石墨复合材料、银-铜-石墨复合材料、银-镀铜石墨复合材料，对三种材料的机械、电气性能进行了综合对比，发现在低碳含量时镀铜石墨粉不能改善复合材料的上述主要性能，而在中高碳含量时则能明显优化复合材料的整体性能，提高了复合材料的电导率，使复合材料在中高碳含量时既具有较高的耐磨性同时也能负载较大的电流，复合材料的机械性能也因镀铜石墨粉的加入而大幅提高，20%碳含量时，银-石墨复合材料的电阻率是银-镀铜石墨复合材料的1.67倍，银-铜-石墨复合材料的电阻率为银-镀铜石墨复合材料的3.23倍，银-镀铜石墨复合材料抗弯强度是银-铜-石墨复合材料的2.17倍，是银-石墨复合材料的2.11倍，同时，在实验给定的条件下，中高碳含量时银-镀铜石墨复合材料的机械磨损耐磨性和通电磨损耐磨性都得以显著提高，银-镀铜石墨复合材料在实验时的接触电压降也更为稳定。

Part II:A novel conductive composite film (MWCNTs-RuOx) containing multi-walled carbon nanotubes with ruthenium oxide was synthesized on glassy carbon electrode, gold and indium tin oxide, screen printed carbon electrode by potentiostatic methods.

第二部分的氧化钌-奈米碳管薄膜(MWCNTs-RuOx)是一种新的传导性复合薄膜，包含多层奈米碳管与钌氧化物，可藉由电位静力学法制备在玻璃碳电极、黄金电极、铟锡氧化物电极和网板碳电极上。

In the present invention, platinum-carbon catalyst, perfluoro sulfonic acid resin solution and absolute ethyl alcohol are uniformly mixed under ultrasonic conditions; mixture is uniformly smeared on a micro-porous layer of carbon cloth or carbon paper in a brushing or printing method, and a traditional Pt/C gas porous electrode is obtained after drying; silicon oil is adopted to infiltrate into pores of a catalyst layer and a diffusion layer of the traditional Pt/C gas porous electrode, and then the ordering anti-drowning gas porous electrode is obtained after drying.

本发明是将铂碳催化剂、全氟磺酸树脂溶液和无水乙醇在超声波条件下混合均匀，采用涂刷或印制的方法将混合物均匀涂布到碳布或碳纸的微孔层上，干燥后制得传统Pt/C气体多孔电极；然后将硅油渗入到传统Pt/C气体多孔电极的催化层和扩散层孔隙中，干燥后制得有序化抗溺水气体多孔电极。

Soil organic carbon is an important component of the global carbon cycle, and it has direct effects on the global carbon balance.

土壤有机碳库是全球碳循环的重要组成部分，其变化直接影响全球的碳平衡。

Soil organic carbon is an important component of the global carbon cycle and has direct effects on the global carbon balance.

土壤有机碳库是全球碳循环的重要组成部分，并且直接影响全球的碳素平衡。

Life on Earth is known as carbon based, and carbon is as necessary to the life cycle of Earth's organisms as we are to the carbon cycle.

地球上的生命是被称为碳为基础，碳是必要的生命周期，地球的有机体，因为我们是碳循环。

By means of solar energy resources research of xinjiang bazhou and analysis on carbon usage and greenhouse gas emission in carbon metallurgy process, a new concept named "non-carbon metallurgy by solar energy photovoltaic technology" was put forward.

通过新疆巴州太阳能资源调研、碳冶金碳素作用及其温室气体排放分析，提出了太阳能光伏非碳冶金理念，实现太阳能光伏非碳冶金的技术难点在于建立独立的能量——冶金体系。

"It turned out that our first bet, a double or triple carbon-carbon bond, placed next to the transferable carbon unit, helped to alleviate the problems that had plagued the reaction in previous studies," Klimasauskas said.

&结果证明我们先前的推测是正确的，双键或三键被放置在要转移的基团旁边时，会帮助减轻先前研究中提到的问题，&Klimasauskas说。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

氯代有机物一般都是典型的持久性环境污染物，其中部分氯代有机物还是环境激素类物质，例如，滴滴涕、林丹和六氯苯等，这些氯代有机物在环境中的迁移转化一直是国际环境化学领域的热点、重点课题。氯代有机物进入环境水体后，成为沉积物吸附态有机污染物的重要成分，天然水沉积物经常处于缺氧状态。因此，研究氯代有机物在天然水体沉积物中的缺氧脱氯行为是非常必要的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。