STUDY OF CATALYTIC POLAROGRAPHY ⅲ. Catalytic Current of Molybdenum-Chlorate in Mandelic Acid or Benzilic Acid Medium 催化极谱的研究Ⅲ.钼杏仁酸(或二苯羟乙酸)-氯酸盐体系的催化波
The scan electron microscope ( SEM) was used to characterize the morphology of the catalyst and catalytic membrane. The polarization behaviour of air electrode and the discharge performance of the Zn-air battery at room temperature were measured with constant current method. 用扫描电镜(SEM)对催化剂和催化膜形貌进行了表征,以恒流法检测了空气电极的极化行为和锌空电池在室温下的放电性能。
The effects of Co_3O_4 on the catalytic activity and ohmic drop of RuO_2-TiO_2 ( 60)/ Ti anode for chlorine evolution were studied by steady-state galvanostatic method and current interruption technique, etc. 用稳态恒电流法和断电流技术研究了Co3O4对RuO2-TiO2(60)/Ti阳极析氯催化活性和欧姆降的影响。
The relative order of catalytic activity of these three metals for the anodic oxidation of IPAB, evaluated by the characteristic potential values at an anodic current density of 1.0 × 10-4A/ cm2, is Ni> Au> Pt. 在阳极电流密度为1.0×10~(-4)A/cm~2时,由特征电位值计算得出的三种金属对异丙胺甲硼烷阳极氧化的催化活性顺序为:Ni>Au>Pt。
Catalytic activation and selective transformation of methane are of highly strategic significance from viewpoint of utilization of natural gas resources for producing fuels and chemical feedstock under current background of severe oil competition. 在当今国际能源和资源供求竞争异常激烈的背景下,有关甲烷催化活化和选择转化的研究,对于优化天然气、煤层气等作为非油基能源和化工原料,具有重要的战略意义。
In electroless polymerization, aniline molecules were oxidized to form Pn film by soluble oxygen on the catalytic surface of Pt or Pd substrate without the supply of electric current. 在没有外电流的情况下,溶液中的苯胺分子在具有催化活性的铂或钯基底表面上被溶解氧氧化为聚苯胺膜。
The molybdenum catalytic current relations with the temperature are also given. 本文还绘出了钼催化电流与温度的关系。
A comparison of economic indicators between delayed coking and catalytic cracking indicates that, under the condition of current price, the economic benefit of the latter is slightly higher than that of the former. 比较了延迟焦化与催化裂化的经济性,在目前的价格情况下催化裂化的效益略高于延迟焦化。
In this paper, the establishment of molecular catalytic engineering and the current situation of its three branches, namely, the modern analytical techniques for surface science and characterization of catalytic systems, catalytic synthetic organic chemistry and the mechanism studies of catalytic reactions have been expounded. 主要论述了分子催化工程的建立及其3个分支,即:能谱技术与催化体系的表征,催化合成有机化学,催化反应机理研究的现状。
The main trends of the research are to improve the catalytic activity of electrodes and increase current efficiency, and to reduce the polarization of electrodes so as to decrease energy consumption. 该领域研究的主攻目标仍然是如何提高电极材料的催化性能,提高电流效率,减少电极极化,降低能耗。
Based on the aging mechanism of wine, a chemical and physical technique is used to catalyze wine with a set of catalytic activity Pt& Pt electrode, reference electrode and constant potential polarized current system. 根据酒老熟化的机理,用物理化学兼而有之的方法,采用一组有催化活性的Pt-Pt电极,参比电极及恒电位极化电源系统进行电催化。
First, the theoretical equations of catalytic current and its all-order derivative convolution and derivation currents were deduced; 推导了这一伏安法的催化电流及其各阶导数卷积和导数的理论方程,在此基础上建立了一组简便测定化学反应速率常数的新方法。
The polarographic catalytic current of CHROMIUM-PHENANTHROLINE sodium nitrite system 铬-邻菲罗啉-亚硝酸钠体系中的极谱催化波
The catalytic peak current of the dioxygen reduction decreased 30% through 60 cyclings by cyclic voltammetry. 进行氧的催化电还原时,在每次扫描前以空气饱和的溶液中能重复循环扫描60次,峰电流降低30%,催化氧电还原的活性顺序是FeTPP/GC>CoTPP/GC>MnTPP/GC;
The dependence of photo electric catalytic oxidation current on the thickness of porous TiO 2 nanometer thin film electrodes is investigated under constant illumination. 研究了在一定光强下,一定粒径的TiO2纳米多孔膜电极的厚度与光电氧化甲醇的稳态光电流的关系。
The Determination of Catalytic Reaction Rate Constant By Means of Limiting Current 用极限电流法求催化反应速度常数
Electrolysis of glucose was performed at constant potential using hydrogen storage alloy as catalytic reduction electrode. It was concluded that the superficial treatment and activation of hydrogen storage alloy powder had an obvious effect on improving the current efficiency for sorbitol to over 80%. 用贮氢合金作催化还原电极恒电位电解葡萄糖,得出合金的表面处理及电极的活化可提高山梨醇电流效率至80%以上的结论。
This paper introduces the technological process of catalytic cracking catalyst production wastewater produced and four kinds of composition of sewage, the current treatment situation. 本文介绍了催化裂化催化剂生产废水产生的工艺过程和四类污水组成、目前处理工艺等情况。
In the presence of antioxidants, H2O2 was scavenged, the catalytic current was reduced, and the decreased current signal was proportional to the quantity of existing antioxidants. 在抗氧化剂存在的情况下,过氧化氢被淬灭,催化电流就会减小,电流的减小程度与抗氧化剂的量呈正比关系。
But also in the preparation process of environmental pollution, high efficiency catalytic, with the current development trend of chemical production, increasing attention has been paid. 而且在制备过程中环境污染少、催化效率高等优点,符合当今化工生产的发展趋势,日益引起人们的重视。
Furthermore, Titanium dioxide ( TiO2) has been extensively used for its catalytic properties as environmental protection. In order to improve the photocatalytic activity of TiO2, the doped modification is one of the current research topics in this field. TiO2本身具有高的光催化活性,在环保领域具有广阔的应用前景,为了进一步提高TiO2的光响应性,对TiO2的掺杂改性也是目前的研究热点。