催化剂      catalyst(50925) catalysts(21780) catalytic agent(86) electro catalyst(1)   catalyst     Study on oxygen electrode catalyst for aluminum-air batteries     铝空气电池氧电极催化剂的工艺研究 短句来源     Study on the oxygen electrode of alkaline fuel cells——Effect of preparation condition on the catalytic activity of AgNiBiHg/C catalyst     碱性燃料电池氧电极的研究——制备条件对 Ag-Ni-Bi-Hg/C 催化剂活性的影响 短句来源     Study on the Oxygen Electrodes of Alkaline Fuel Cells Effect of Dopant on the Activity of Ag/C Catalyst     碱性燃料电池氧电极的研究——助催化剂的添加对Ag/C催化剂活性的影响 短句来源     PtRu/SWCNTs(20% Pt and 10% Ru in mass fraction) methanol anode catalyst was prepared by liquid-phase chemical reduction method.     以单壁碳钠米管(SWCNTs)为载体,采用液相化学还原法制备了PtRu/SWCNTs(20%Pt和10%Ru,质量分数)甲醇阳极催化剂。 短句来源     The influences of reaction temperature on the structure of the catalyst of PtRu/SWCNTs were studied and the prepared catalyst was compared with commercial catalyst PtRu/C(JM).     研究了反应温度对PtRu/SWCNTs催化剂结构的影响,并与商品催化剂PtRu/C(JM)进行了比较。 短句来源 更多          catalysts     Studies on Direct Methanol Fuel Cell Anodic Catalysts     直接甲醇燃料电池阳极催化剂研究 短句来源     Investigation on the Stability of Pt/Carbon Nanotube Catalysts and Novel Methods for the Preparation of the Electrodes for PEMFC     PEMFC铂/碳纳米管催化剂稳定性和电极制备新方法 短句来源     The Choice of the Catalysts of Oxygen Electrode under High--current Density     高电流密度放电氧电极催化剂的选择 短句来源     LaMn1-yCryO3(y=0,0.1,0.2,0.3,0.4,0.5) catalysts for the oxygen reduction of zinc-air cells were prepared by sol-gel method.     采用溶胶-凝胶法制备锌-空气电池用氧还原催化剂LaMn1-yCryO3(y=0,0.1,0.2,0.3,0.4,0.5)。 短句来源     The polarization characteristic test of air electrodes with the LaMn1-yCryO3 catalysts was investigated. The test results showed that the prepared catalysts had good electrocatalytic activity for the oxygen reduction and the best electrocatalytic activity was achieved when the composition was fixed at LaMn0.8Cr0.2O3 with output current density of 70 mA/cm2 at the electrode potential of-200 mV(vs.Hg/HgO).     以LaMn1-yCryO3为催化剂制备空气电极,极化特征测试结果表明:所制备的催化剂具有良好的氧还原电催化性能,且LaMn0.8Cr0.2O3电催化性能最佳,在电极电位为-200 mV(vs.Hg/HgO)时,输出电流密度为70 mA/cm2。 短句来源 更多          “催化剂”译为未确定词的双语例句     STUDIES ON METAL-SEMICONDUCTOR INTERACTION: THE EFFECT OF THE INTERFACIAL STRUCTURE ON THE ELECTROCHEMICAL BEHAVIOR OF Pt-TiO_2 AND Pt-ZnO     金属-半导体催化剂的相互作用的研究—Pt/TiO_2和Pt/ZnO界面结构变化对其化学行为的影响 短句来源     The maximum electrochemical specific area of ca 148 cm2·mg-1 was obtained with an electrodeposited Pt loading of ca 0.38 mg·cm-2, which is ca 2 times higher than that of the Pt-C/Si electrode with similar Pt loading of ca 0.40 mg·cm-2. Such a Pt/Si electrode showed an enhanced catalytic activity for methanol oxidation.     当Pt载量为0.38mg·cm-2时,其电化学活性比表面积高达148cm2·mg-1,是刷涂相近质量的纳米Pt/C催化剂的多孔硅电极Pt-C/Si的2倍多; 短句来源     The performance of single cells employing Pt-SiO2/NP membrane and plain Nafion/PTFE(NP) membrane under ambient H2 and air,were 0.6 and 0.3 W/cm2 of peak power density,0.96 and 0.92 V of open circuit voltage(OCV),respectively.     在常压干态氢气、空气操作条件下,具有三层结构的复合膜(Pt-SiO2/NP)和不含有催化剂的Nafion/PTFE(NP)膜的自增湿燃料电池的峰值比功率分别达0.6、0.3W/cm2,开路电压分别为0.96、0.92V。 短句来源     The influences of the dosage of PtRu/SWCNTs and the contents of Nafion and PTFE on cell performances were investigated with air and oxygen as cathode oxidants respectively.     分别用空气和氧气作阴极氧化剂,考察了PtRu/SWCNTs催化剂用量、Nafion含量和聚四氟乙烯(PTFE)含量对单电池性能的影响。 短句来源     We found that the hydrogen was produced at 300-550℃. The significant effect of carriers was observed in 300 - 450℃. The optimized conditions are O2/C3H8 = 2. 0, and temperature of 550℃.     实验中丙烷在300℃开始反应,催化剂的载体效应主要体现在300～450℃,在评价结果中550℃、O_2/C_3H_8=2.0最适于丙烷部分氧化制氢,同时催化剂15%Ni/Ce_(0.25)Zr_(0.75)O_2上丙烷部分氧化制氢的活性最高。 短句来源 更多        查询“催化剂”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   catalyst A new environmentally friendly catalyst, H4SiW12O40-polyaniline (PAn), was prepared, and n-butyraldehyde 1,2-propanediol acetal was synthesized from n-butyraldehyde and 1,2-propanediol in the presence of H4SiW12O40-PAn. 例句来源       The influence factors of the synthesis were discussed, and the best reaction conditions were found: the molar ratio of n-butyraldehyde to 1,2-propanediol is 1:1.5, the amount of catalyst used is 1.2% of feed stock, and the reaction time is 1.0 h. 例句来源       H4SiW12O40-PAn is an excellent catalyst for synthesizing n-butyraldehyde 1,2-propanediol acetal, and the yield can reach more than 95.2%. 例句来源       The partial intermediate products were absorbed on TiO2 surface, which resulted in catalyst deactivation. 例句来源       But when it was irradiated under UV illumination or solar irradiation for some time, the catalyst could be reused without loss of catalytic activity. 例句来源       更多             catalysts Based on the polymer and plastic analogy, the annual market for products that carry nano-components, including all computer chips, half of pharmaceuticals and half of chemical catalysts, will reach $1 trillion by 2015. 例句来源       The results showed that the catalyst had higher catalytic performance than common hydrogenation catalysts. 例句来源       The conversion of CNB could reach 99.9%, and the dechlorination of chloroaniline (CAN) was less than 1.9% when catalyzed by Pt-Sn-B/CNTs and more than 8.0% when catalyzed by common hydrogenation catalysts. 例句来源       Exploitation of rare earth catalysts in polymer syntheses 例句来源       The studies over forty years on rare earth catalysts in polymer syntheses of diene, alkyne, alkylene oxide, thiirane, carbon dioxide copolymerization, lactide, caprolactone, cyclic carbonate and so forth in China have been reviewed. 例句来源       更多             catalytic agent The results show that a boride and a catalytic oxidation agent have great effects on ameliorating the mineral compositions and microstructures of these sinters, and the catalytic agent is more effective. 例句来源       The RNA world hypothesis refers to a hypothetical era prior to coded peptide synthesis, where RNA was the major structural, genetic, and catalytic agent. 例句来源       Na2O, or Na2Al2O4·6H2O, is the intermediate product, and NaOH is a catalytic agent of the reaction. 例句来源       These are: a) as a psychotherapeutic adjunct, b) as the sole therapist, c) as a catalytic agent for change, d) as a means of contact with nature, one's unconscious and the universe. 例句来源       (H2O)nHBr associates reduce the activation energy of the transition state and act as a strong catalytic agent for the molecular reaction. 例句来源       更多             electro catalyst The nanocrystalline Pb-Ru pyrochlore prepared by reverse microemulsion method has been used as the cathode electro catalyst for oxygen reduction reaction in proton exchange membrane (Nafion 117) medium. 例句来源       For micro fuel cell applications, these structures are subsequently sputter-coated with platinum as the electro catalyst. 例句来源       However, these systems are intolerant to carbon monoxide and sulfur due to electro-catalyst poisoning. 例句来源       However, the combination of Platinum/Ruthenium in the electro-catalyst, improves the tolerance. 例句来源                A photochemical system is described for the generation of hydrogen by water reduction under UV irradiation of aqueous micellar solutions containing the following components.A photosensitizer, metal (Cu. Fe. Mn. Zn. Co. or Ni)-5(4-hydroxylphenyl)-10, 15, 20-triphenyl porphyrin complex (MP)/2, 2'-bpy, an electron donor, triethanolamine (TEOA), and a redox catalyst, K2PtCl6. Results on the synergistic effects for components' concentration, pH, and irradiative time on hydrogen generation are reported.A possible...             用非贵金属卟啉络合物(Cu、Fe、Zn、Mn、Co、Ni)为光敏剂,三乙醇胺为电子给体,氯铂酸钾为催化剂,2,2′-联吡啶为助剂,Triton x-305为表面活性剂,做成胶束溶液体系,探讨了该体系在紫外光照下还原水产氢的功能。观察了不同pH值、组成,表面活性剂浓度和光照时间等对产氢量的影响,并提出了各组份的协同作用和可能的产氢机理。 文摘来源          Although investigation on water-splitting with sunlight has been extensively studied and has made some important progress in recent years,to put it into practical use still remains a big problem.In order to establish a useful model for photodissociation of water by complex catalysis,the followings are discussed in this paper:(Ⅰ)about increasing quantum efficiency;(Ⅱ)about improving the storing efficiency;(Ⅲ)about separating hydrogm and oxygen;and (Ⅳ)about the stability of photo-sensitizer,electron relay and...             太阳能分解水制氢的研究,近年来虽取得了较大的进展,但离实际应用的距离尚远。本文对建立具有实用意义的络合催化光解水的模型,从提高量子效率、提高太阳能的储存效率、氢和氧的分离以及光敏剂、电子传递剂和氧化-还原催化剂的稳定性问题进行了讨论。并对该项研究的前景作了展望。 文摘来源          This paper describes the properties of Ti+3,Fe+3,La+3,Eu+3,Cr+3,Fe+2,Cu+2 in the photocatalytic systems containing triethanolamine which was used as a sacrificial electron donor,Pt (K2PtCl6) as a reductive catalyst for photoreduction of water to hydrogen from neutral aqueous solutions by UV irradiation.Activity of photochemical formation of hydrogen increased in the order:Ti+3>La+3>Eu+3>Fe+3>Fe+2.Under experimental conditions no hydrogen evolution was observed for Cr+3 and Cu+2.             本文报道了以三乙醇胺(TEOA)为消耗型电子给体,铂(K_2PtCl_6)为还原催化剂,在联吡啶(2,2′-bpy)存在下,Ti~(3+)、Fe~(3+)、La~(3+)、Eu~(3+)、Cr~(3+)、Fe~(2+)、Gu~(2+)等7种金属离子在中性水溶液中光催化分解水产氢的性能。其中以Ti~(3+)体系活性最高,La~(3+)和Eu~(3+)次之。Fe~(3+)、Fe~(2+)在一定条件下,也有光解水活性,但表现出相当长时间的诱导期。而Cr~(3+)和Cu~(2+)在实验所用条件下,向乎观察不到有氢放出。 文摘来源   << 更多相关文摘         相关查询: 催化剂循环的 黏土催化剂 cuznal催化剂 催化剂动力学 胺化催化剂 5催化剂 催化剂配制 催化剂劣化 脱砷催化剂 催化剂再生的 分散催化剂 催化剂质量  对查询结果不满意

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