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SYNTHESES AND SPECTRA OF HETEROPOLY BLUES OF DOUBLE 2:17 MOLYBDOPHOSPHATES LANTHANIDE COMPLEXES
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作者 En Bo WANG ※, Lan Cui ZHANG, Zuo Ping WANG, En Hong SHEN, Su Xia ZHANG Department of Chemistry, Northeast Normal University, Changchun 130024 Rui Yun 2HAN, Ya Yan LIU Chanochun Institute of Applied Chemistry, Academia Sinica, Changchun 130022 《Chinese Chemical Letters》 SCIE CAS CSCD 1991年第11期877-880,共4页
The present paper reports eight heteropoty blues of double 2:17 motybdophosphates tanthanide comptexes with tacunary Dawson structure, i.e., K_(17)H_2[Ln(P_2Mo_2~ⅤMo_(15)~ⅥO_(16))_2], nH_2O and K_(17)H_4 [Ln(P_2Mo~... The present paper reports eight heteropoty blues of double 2:17 motybdophosphates tanthanide comptexes with tacunary Dawson structure, i.e., K_(17)H_2[Ln(P_2Mo_2~ⅤMo_(15)~ⅥO_(16))_2], nH_2O and K_(17)H_4 [Ln(P_2Mo~Ⅴ_4Mo_(13)~ⅥO_(61))_2], nH_2O(Ln=La, Pr, Sm, Yb). They were characterized by etementat anatyses, potentiometric titration, IR, UV, potarography, cyclic vottammetry, X-ray photoelectron spectra, X-ray powder diffraction, thermat analyses and ESR. The results show that the properties of these heteropoty btues are different from those of heteropoty blues with saturated Dawson structure and other tacunary series. They are more stabte than their parent heteropoty acids in aqueous sotution and have the abitity of anti-base decomposition. 展开更多
关键词 LA SYNTHESES AND SPECTRA OF heteropoly blueS OF DOUBLE 2 ESR 公吏 SCE
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A Novel Application of Lithium Heteropoly Blue as Non-aqueous Electrolyte in Polyacenic Semiconductor-Li Secondary Batteries
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作者 WANG Xiu-li +2 位作者 XIN Ming-hong 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2003年第1期10-14,共5页
Lithium heteropoly blue(Li 5PW Ⅵ 10 W Ⅴ 2O 40 ) was used as a non aqueous electrolyte in the polyacenic semiconductor (PAS) Li secondary battery instead of LiClO 4. The properties of the PAS Li secon... Lithium heteropoly blue(Li 5PW Ⅵ 10 W Ⅴ 2O 40 ) was used as a non aqueous electrolyte in the polyacenic semiconductor (PAS) Li secondary battery instead of LiClO 4. The properties of the PAS Li secondary battery, especially the effect of Li 5PW Ⅵ 10 W Ⅴ 2O 40 on the capacity, the cycle property and the self discharging of the battery have been investigated. The results indicate that not only Li 5PW Ⅵ 10 W Ⅴ 2O 40 can overcome the disadvantages of LiClO 4, which is apt to explode when heated or rammed, but also the PAS Li secondary battery assembled with the novel electrolyte has a larger capacity and smaller self discharging than that assembled with LiClO 4. Therefore, it is believed that lithium heteropoly blue is a better and novel electrolyte for the PAS secondary battery and exhibits significant and practical application. 展开更多
关键词 Lithium heteropoly blue Non aqueous electrolyte Polyacenic semiconductor Secondary battery
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Isomerization and Antiacidolysis Properties of Molybdic Heteropoly Blues with Keggin Structure
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作者 WANG Zuo-ping,XU Lin,SHEN En-hong and WANG En-bo (Department of Chemistry,Northeast Normal University,Changchun,130024) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1995年第2期98-104,共7页
For eight kinds of acidic potassium salts of hetcropoly blues which have not been reported in literature,the isomeri/.ation reaction in solution for these two-and four-electron hcteropoly blue solids were investigated... For eight kinds of acidic potassium salts of hetcropoly blues which have not been reported in literature,the isomeri/.ation reaction in solution for these two-and four-electron hcteropoly blue solids were investigated by means of polarograms,cyclic voltammetry,31P NMR and X-ray diffraction methods.The heteropolynier of PMo12 and AsMo12 converte to their β-isomers during isomerization reaction which were found to have antiacidolysis property. 展开更多
关键词 heteropoly blue Keggin structure Isomenzation
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SYNTHESIS AND STRUCTURE OF TWO-ELECTRON HETEROPOLY BLUE K_2H_4SiMo(Ⅴ)_2Mo(Ⅵ)_(10)O_(40)·12H_2O WITH α-KEGGIN STRUCTURE
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作者 En Bo WANG, Lan Cui ZHANG, Zuo Ping WANG Department of Chemistry, Northeast Normal Urtiversity, Changchun, 130024 Song Chun JIN, Yong Han LIN Changchun Institute of AppLied Chemistry, Academia Sinica, Changchun, 130022 《Chinese Chemical Letters》 SCIE CAS CSCD 1991年第10期803-804,共2页
The single crystal of two-electron heteropoly blue with Si as the heteroatom and α-Keggin structure K_2H_4SiMo(Ⅴ)_2Mo(Ⅵ)_(10)O_(40)·12H_2O was obtained by electrolytic reduction. It crystallizes in a triclinic... The single crystal of two-electron heteropoly blue with Si as the heteroatom and α-Keggin structure K_2H_4SiMo(Ⅴ)_2Mo(Ⅵ)_(10)O_(40)·12H_2O was obtained by electrolytic reduction. It crystallizes in a triclinic system with space group P , Mr=2117.73, a= 13.702(4), b=14.107(3), c=14.184(2) ; α=119.27(1), β=93.14(2), ;γ=110. 3(2)°, V=2154.29~3, Z=2, F(000)=1999, μ=36.39cm^(-1), Dc=3.26 g/cm^3. Final R factor is 0.0515. Mo(Ⅴ) is situated in two different edge-shared Mo_3O_(13) groups. The heteropoly blue was characterized by IR, UV, polarography, X-ray photoelectron spectra and ESR. All the results show that the structure of the heteropoly anion with Keggin structure remains unchanged basically in the process of reduction. 展开更多
关键词 SYNTHESIS AND STRUCTURE OF TWO-ELECTRON heteropoly blue K2H4SiMo KEGGIN STRUCTURE WITH
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Photochemical Synthesis, Properties and X-Ray Crystal Structure of Tetrabutylammonium Dodecamolybdophosphate Heteropoly Blue
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作者 柳士忠 李建平 +6 位作者 冯先华 张贞文 陈俊阳 王峥 邢彦 贾恒庆 林永华 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2002年第3期240-246,共7页
The title heteropoly blue, (Bu_4N)_6H_(10)[PMo_(11)~ⅥMo~ⅤO_(40)]_4·H_2Ohas been photochemically synthesized and characterized with elemental analysis, solid diffusionreflectance electronic spectra, CV, ESR, XPS... The title heteropoly blue, (Bu_4N)_6H_(10)[PMo_(11)~ⅥMo~ⅤO_(40)]_4·H_2Ohas been photochemically synthesized and characterized with elemental analysis, solid diffusionreflectance electronic spectra, CV, ESR, XPS, IR spectra, conductivity measurement and X-ray singlecrystal analysis. The crystallographic data for C_(96)H_(218)Mo_(48)N_6O_(169)P_4 are as follows:M_r = 8889.76, triclinic, P_1, a = 1.4142(3) nm, b = 2.6027(5) nm, c = 2.6403(5) nm, α=113.96(3)°, β = 90.05(3)°, γ= 105.71(3)°, V = 8.481(3) nm^3, Z = 1, D_c = 1.741 g/cm^3, F(000)= 4264, μ= 1.798 mm^(-1). The X-ray crystal structure analysis reveals that there is oneindependent molecule in the unit cell of the title heteropoly blue which contains four mixed-valenceheteropoly anions, six tetrabutylammonium cations and one water molecule. Its molecular structurepossesses a centrosymmetrical arrangement in the unit cell. The phosphorus atom is in thecrystallographic inversion center of the heteropoly anion and the eight oxygen atoms surroundingcentral phosphorus atom comprise of a distorted hexahedron. Heteropoly anion has two equal sets ofPO_4 tetrahedron. The PO_4 tetrahedron and the MoO_6 octahedron in the polyanion are greatlydistorted. 展开更多
关键词 tetrabutylammonium dodecamolybdophosphate heteropoly blue photosensitiveagent photochemical reduction crystal structure characterization
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Polyoxometalates-Modulated Hydrophilic-Hydrophobic Composite Interfacial Material for Efficient Solar Water Evaporation and Salt Harvesting in High-Salinity Brine
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作者 Sihang Cheng Cuimei Liu +3 位作者 Yingqi Li Huaqiao Tan Yonghui Wang Yangguang Li 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2024年第3期219-227,共9页
Solar vapor generation(SVC)represents a promising technique for seawater desalination to alleviate the global water crisis and energy shortage.One of its main bottleneck problems is that the evaporation efficiency and... Solar vapor generation(SVC)represents a promising technique for seawater desalination to alleviate the global water crisis and energy shortage.One of its main bottleneck problems is that the evaporation efficiency and stability are limited by salt crystallization under high-salinity brines.Herein,we demonstrate that the 3D porous melamine-foam(MF)wrapped by a type of self-assembling composite materials based on reduced polyoxometalates(i.e.heteropoly blue,HPB),oleic acid(OA),and polypyrrole(PPy)(labeled with MF@HPB-PPy_(n)-OA)can serve as efficient and stable SVC material at high salinity.Structural characterizations of MF@HPB-PPy_(n)-OA indicate that both hydrophilic region of HPBs and hydrophobic region of OA co-exist on the surface of composite materials,optimizing the hydrophilic and hydrophobic interfaces of the SVC materials,and fully exerting its functionality for ultrahigh water-evaporation and anti-salt fouling.The optimal MF@HPB-PPy_(10)-OA operates continuously and stably for over 100 h in 10wt%brine.Furthermore,MF@HPB-PPy_(10)-OA accomplishes complete salt-water separation of 10wt%brine with 3.3kgm^(-2)h^(-1)under 1-sun irradiation,yielding salt harvesting efficiency of 96.5%,which belongs to the record high of high-salinity systems reported so far and is close to achieving zero liquid discharge.Moreover,the low cost of MF@HPB-PPy_(10)-OA(2.56$m^(-2))suggests its potential application in the practical SVC technique. 展开更多
关键词 heteropoly blue(HPB) hydrophilic-hydrophobic interface polyoxometalates(POM) salt-water separation solar vapor generation(SVG)
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Etherification of Methanol with Propylene Oxide Catalyzed by Heteropolyacids 被引量:1
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作者 ZHAO Ben-liang XU Gui-ying LI Bin and LIU Jing-fu (Department of Chemistry, Northeast Normal University , Changchun, 130024) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1994年第3期250-251,共2页
EtherificationofMethanolwithPropyleneOxideCatalyzedbyHeteropolyacidsZHAOBen-liang;XUGui-ying;LIBinandLIUJing... EtherificationofMethanolwithPropyleneOxideCatalyzedbyHeteropolyacidsZHAOBen-liang;XUGui-ying;LIBinandLIUJing-fu(DepartmentofC... 展开更多
关键词 heteropolyacid catalysts ETHERIFICATION heteropoly blue
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