heteropoly compounds 杂多化合物(91)   杂多化合物      Structural characterization of nano-micropore heteropoly compounds Na[Fe_2(O_2H_3)Mo_2O_8] (Ⅰ) and (NH_4)[Fe(MoO_4)_2] (Ⅱ)      纳米微孔杂多化合物Na[Fe_2(O_2H_3)Mo_2O_8](Ⅰ)和(NH_4)[Fe(MoO_4)_2](Ⅱ)的结构特征 短句来源      In this paper it was first studied systematically that the relationship between the vibrational spectra and the properties of two ceries of tungsten and molybdenum heteropoly compounds which have Keggin type structure HnXw_(12)O_(40)·nH_(20)(X=B, Ge, Si, As, P) and HnXMo_(12)O_(40)·nH_(20)(X=Ge, Si, As, P).      本文首次系统研究了钨钼两大系列Keggin型杂多化合物H_nXWO_(40)·nH_2O(X=B,Ge,Si,As,P)和HnxMo_(12)O_(40)·nH_2O(x=Ge,Si,As,P)的振动光谱与其性质之间的关系。 短句来源      Al_(13) Based Molybdate Crystals with Multimorphologies Synthesized from P-Mo(Ⅴ) Heteropoly Compounds      从P-Mo(Ⅴ)杂多化合物合成多形貌Al_(13)基钼酸盐晶体 短句来源      The heteropoly compounds of HnXW12O40、Na3AsW12O40、HnY Mo12O40、HnMW12O40 are prepared,and their Ultraviolet spectra are measured. The relation between Ultraviolet spectra and the nature of central ion is also studied.      制备了杂多化合物HnXW12O40、Na3AsW12O40、HnYMo12O40、HnMW12O40，并测试了它们的紫外光谱，研究了紫外光谱与中心离子性质的关系。 短句来源      STUDY ON CATALYTIC PROPERTY OF HETEROPOLY COMPOUNDS:CATALYTIC BEHAVIOR OF Na_2HPW_(12)O_(40) IN THE OXIDATION OF STYRENE UNDER PHASE TRANSFER CONDITIONS      杂多化合物催化性能的研究 在相转移条件下Na_2HPW_(12)O_(40)在苯乙烯氧化反应中的催化作用 短句来源 更多          “heteropoly compounds”译为未确定词的双语例句      Heteropoly compounds α K 6[GeW 11 Co(H 2O)O 39 ]12H 2O α K 5H[GeW 11 Ni(H 2O)O39]·15H 2O are prepared and characterized by means of elemental analysis,IR and UV spectra,X ray powder diffraction and so on.      合成了钴、镍单取代钨锗杂多酸盐α－K6［GeW11Co（H2O）O39］·12H2O和α－K5H［GeW11Ni（H2O）O39］·15H2O．通过元素分析、紫外和红外光谱、X－射线粉末衍射等手段进行表征； 短句来源      ? 0 series tungstophosphate heteropoly compounds,Na 12 P 4W 30 Cr 4(H 2O) 2O 112 and K 12 H 4P 4W 30 Mg 4(H 2O) 2O 112 ,have been first synthesized and characterized by element analysis,IR,UV and 183 W NMR.      合成了4∶30系列钨磷杂多酸盐Na12P4W30Cr4（H2O）2O112和K12H4P4W30Mg4（H2O）2O112，并通过元素分析、红外光谱、紫外光谱及183WNMR进行了表征。 短句来源      The present paper reports nine new heteropoly compounds of tungstotianophosphates containing rare earth elements. i.e., Ln 2H[PTi 2W 10 O 40 ]· x H 2O(Ln=La, Ce, Pr, Nd, Sm, Gd, Tb, Yb, Lu). They were characterized by elemental analyses, IR, UV, 31 P, 183 W NMR.      合成了通式为LnxH［PTi2W10O40］·xH2O（Ln＝La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Yb、Lu）的稀土杂多配合物，通过IR、UV、31P、183WNMR谱对其结构进行了表征。 短句来源      It has been proposed that Mo-O-P bonding might be formed on the surfaces of the samples with certain composition. This bonding might be analogous to that in thier heteropoly compounds. The excellent denitrogenation activity of MoO_3-NiO-P_2O_5/γ-Al_2O_3 catalyst might be related to its surface acidity modulated by P_2O_5.      提出在一定的组成条件下,表面上可能形成与杂多酸中类似的Mo-O-P键合,以及MoO_3-NiO-P_2O_5/γ-Al_2O_3催化剂优越的脱碱氮特性可能与p_2O_5对催化剂表面酸性的这种调节作用有一定关系等观点. 短句来源      Studies on Catalytic Properties of Heteropoly Compounds Ⅱ.Etherification of Olefin Epoxides with Benzyl Alcohol Catalyzed by 12-Mo-and 12-W-Heteropolyacids      杂多酸催化性能的研究——Ⅱ.12-钼和12-钨杂多酸催化烯烃环氧化物与苯甲醇的醚化 短句来源 更多          相似匹配句对      The structure and function of heteropoly compounds      杂多化合物的结构及其功能 短句来源      Development of Heteropoly Compounds in Catalysis      杂多化合物的催化进展 短句来源      On the Compounds in GuoYu      《国语》复音词研究 短句来源      Photochromic compounds      光致变色化合物 短句来源 查询“heteropoly compounds”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。   heteropoly compounds First, the state of the art of the catalyst design based on heteropoly compounds is briefly overviewed. 例句来源       Fe, Co and Ni) were chosen as heteropoly compounds, and they were supported together with platinum over Y-zeolite. 例句来源       Oxidation of cyclohexene and α-pinene with an O2-H2 mixture in the catalytic systems containing Pt or Pd and heteropoly compounds (HPC) was studied. 例句来源       The oxidation of cyclohexane, saturated and aromatic hydrocarbons with an O2-H2 gaseous mixture was applied to study the catalytic properties of bicomponent systems based on platinum and heteropoly compounds (HPC). 例句来源       Catalytic systems based on platinum and heteropoly compounds for oxidation of hydrocarbons with a dioxygen-dihydrogen gaseous mi 例句来源       更多                    The effect of reaction conditions on the formation of two tungstoborio acids has been studied. The favorable reaction condition for the formation of hexagonal acid (h-Acid) is higher pH, slight excess of boric acid and lower temperature, and that for the formation of quadratic acid (α-Acid) is lower pH, large excess of boric acid and higher temperature. And optimum condition for the preparation of each pure acid has been proposed. The thermal stability and the dehydration behavior of the two acids have been...             本文报道了两种钨硼酸的最佳合成条件:在较高的pH,稍过量的硼酸和较低温度下有利于六方酸的生成;在较低的pH,大量过量的硼酸和较高温度时则利于生成四方酸。合成这两种酸的方法较文献优越。测得六方酸的UV,IR和Raman光谱性质,并对其结构进行初步探讨。 文摘来源          The surface acidity of MoO_3-NiO-P_2O_5/γ-Al_2O_3 and their components supported individualy on the γ-Al_2O_3 surface has been studied systematically.It is of interest to note that the surface acidity of P_2O_5/γ-Al_2O_3 or MoO_3/γ-Al_2O_3 is higher than γ-Al_2O_3 itself,but,when P_2O_5 is added to MoO_3/γ-Al_2O_3 or MoO_3-NiO/γ-Al_2O_3 samples,thier surface acidities drops markedly.This tendency of decrease is independent of the methods of adding P_2O_5.The results clarify some umabiguous concepts reported...             本文对MoO_3-NiO-P_2O_5/γ-Al_2O_3体系及其各组成部分的表面酸性进行了系统的研究.结果表明,MoO_3、P_2O_5分别负载到γ-Al_2O_3上时,表面酸性提高;把P_2O_5加入到MoO_3/γ-Al_2O_3或MoO_3-NiO/γ-Al_2O_3中,表面酸性都有所下降.这种下降的趋势与引入P_2O_5的方式无关.澄清了有关文献中一些不确切的提法.提出在一定的组成条件下,表面上可能形成与杂多酸中类似的Mo-O-P键合,以及MoO_3-NiO-P_2O_5/γ-Al_2O_3催化剂优越的脱碱氮特性可能与p_2O_5对催化剂表面酸性的这种调节作用有一定关系等观点. 文摘来源          New heteropoly Compounds K6[YbGaW11O40H2]·10H2O and K6[ErAlW11O40H2]·11H2O Were Propared for the first time.The Synthetic method of the Compounds, 1R and UV spectra, magnitic susleptibility and thermal behavior were investigated.             本文报道了首次合成出的LnL型稀土钨镓三元杂多化合物K_6〔H_2OY_bGaW_(11)O_(39)〕·10H_2O和稀土钨铝三元杂多化合物K_6〔H_2OErAlW_(11)O_(39)〕·11H_2O,通过组成分析、磁性质测试,确定了其分子组成,并对其红外光谱、紫外光谱、热性质等进行了测试和初步研究。 文摘来源   << 更多相关文摘         相关查询: some heteropoly compounds heteropoly compounds derivatives trisubstituted heteropoly compounds heteropoly compounds (hpc) nano heteropoly compounds heteropoly compounds as catalysts heteropoly compounds heteropoly compounds with dawson structure nano-micropore heteropoly compounds coordinate compounds helium compounds  对查询结果不满意

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