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Effect of Some Metal Ion Dopants on Electrochemical Properties of Ni(OH)_2 Film Electrode

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Chemical Research in Chinese Universities 2003年第4期19卷 494-498页

作者： zhang heng-bin LIU Han-san CAO Xue-jing SUN Chia-chung College of Chemistry State Key Laboratory of Theoretical and Computational ChemistryInstitute of Theoretical ChemistryJilin UniversityChangchun 130023P.R.China

The Ni(OH) 2 film electrodes doped respectively with alkali-earth metal aluminum, lead, partial transition metal and some rare-earth metal(altogether 17 kinds of metals) ions were prepared by cathode electrodeposition. The electrode reaction reversibility, the difficult extent of oxygen evolution, the proton diffusion coefficient, the discharge potential of middle value and the active material utilization of the Ni(OH) 2 film electrode were compared with those of the ones doped with the metal ions by means of cyclic voltammetry, potential step and constant current charge-discharge experiments. It was found that Ca 2+ , Co 2+ , Cd 2+ , Al 3+ etc. have obviously positive effect.

关键词： Film electrode Electrochemical properties Metal ion dopant

Nanocrystalline Ni(OH)_2 Preparation by Electrolysis in an Aqueous Solution of Nickel Nitrate

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Chemical Research in Chinese Universities 2002年第3期18卷 334-336页

作者： zhang heng bin LI Xue yin CAO Xue jing LI Shu jia College of Chemistry Jilin UniversityChangchun 130023P.R.China

Nanocrystalline Ni(OH) 2 was prepared by cathode deposition in an aqueous solution of nickel nitrate. The structure and the morphology were characterized by means of XRD and TEM. The electrode performances were exami... 详细信息

关键词： Nanocrystal Nickel hydroxide Electrolysis

Electrooxidation of Hydroxypivalaldehyde in an Undivided Cell

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Chemical Research in Chinese Universities 2006年第5期22卷 626-630页

作者： YU Jian-guo CAO Xue-jing zhang heng-bin zhang Yu-min LI Ke-chang College of Chemistry Jilin University Changchun 130021 P. R. China

The factors affecting the electrooxidation of hydroxypivalaldehyde（HPAL） in an undivided cell were studied by using cyclic voltammetry（CV）, linear scan voltammetry（ LSV）, and potentiostatic electrolysis. The electrocatalytic activity and stability of a PbO2 electrode in sulfuric acid, acetic acid, and phosphoric acid were studied. The selectivity and the current efficiency for producing hydroxypivalic acid were explored with different supporting electrolytes, concentrations of HPAL, and pH values. The results show that higher selectivity and current efficiency for producing hydroxypivalic acid can be achieved when sulfuric acid with a high concentration is used as the supporting electrolyte and the selectivity and the current efficiency can reach 80% and 60%. resvectively.

关键词： Hydroxypivalaldehyde Hydroxypivalic acid Electrooxidation Electrosynthesis

Effect Factors in Synthesis of Nicotinic Acid by Electrooxidation of 3-Picoline

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Chemical Research in Chinese Universities 2005年第6期21卷 692-696页

作者： SUN Xiu-yun zhang Yu-min CAO Xue-jing zhang heng-bin LI Fei XU Yu-ling College of Chemistry Jilin University Changchun 130021 P. R. China Department of Applied Chemistry Jilin Institute of Chemical Technology Jilin 132022 P. R. China

In an electrolytic cell with a proton exchange membrane, nicotinic acid was synthesized at the PbO2 anode. The relationship between the current density and the potential at different concentrations of 3-picoline and sulfuric acid as well as at different temperatures was studied with polarization curves. The effects of the concentrations of sulfuric acid and 3-picoline, the anode potential and the reaction temperature on the selectivity and the current efficiency were explored. The optimum conditions were determined by orthogonal experiments. Under optimum conditions the selectivity and the current efficiency for the synthesis of nicotinic acid might reach 89% and 65%, respectively. The, concentrations of 3-picoline and nicotinic acid were analyzed with high performance liquid chromatography and the product was characterized with elemental analysis, chromatography-mass spectrometry and IR spectrometry.

关键词： 3-Picoline Nicotinic acid Electrooxidation Electroorganic synthesis

Electrochemical Studies on Some Tetracomponent Molybdovanadophosphate with Keggin Structure

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Chemical Research in Chinese Universities 1995年第3期11卷 271-275页

作者： zhang, heng-bin Wu, Fang Yu, Jian-feng Wu, Tong-hao Li, Shu-jia JILIN UNIV DEPT CHEMCHANGCHUN 130023PEOPLES R CHINA

ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌＳｔｕｄｉｅｓｏｎＳｏｍｅＴｅｔｒａｃｏｍｐｏｎｅｎｔＭｏｌｙｂｄｏｖａｎａｄｏｐｈｏｓｐｈａｔｅｗｉｔｈＫｅｇｇｉｎＳｔｒｕｃｔｕｒｅＺＨＡＮＧＨｅｎｇ－ｂｉｎ，ＷＵＦａｎｇ，ＹＵＪｉ... 详细信息

ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌＳｔｕｄｉｅｓｏｎＳｏｍｅＴｅｔｒａｃｏｍｐｏｎｅｎｔＭｏｌｙｂｄｏｖａｎａｄｏｐｈｏｓｐｈａｔｅｗｉｔｈＫｅｇｇｉｎＳｔｒｕｃｔｕｒｅＺＨＡＮＧＨｅｎｇ－ｂｉｎ，ＷＵＦａｎｇ，ＹＵＪｉａｎ－ｆｅｎｇ，ＷＵＴＯｎｇ－ｈａ...

关键词： Heteropoly compound Redox Molybdovanadophosphate

Synthesis and Structure of ［Et＿4N］＿2［Mo＿6O＿（19）H＿4］and Valence Determination of Molybdenum

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Chemical Research in Chinese Universities 1994年第1期10卷 36-42页

作者： Niu, Shu-yun zhang, heng-bin Yang, Guang-di Nie, Fu Li, Shu-jia

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒｅｏｆ［Ｅｔ＿４Ｎｊ］＿２［Ｍｏ＿６Ｏ＿（１９）Ｈ＿４］ａｎｄＶａｌｅｎｃｅＤｅｔｅｒｍｉｎａｔｉｏｎｏｆＭｏｌｙｂｄｅｎｕｍＮＩＵＳｈｕ－ｙｕｎ；ＺＨＡＮＧＨｅｎｇ－ｂｉｎ；... 详细信息

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒｅｏｆ［Ｅｔ＿４Ｎｊ］＿２［Ｍｏ＿６Ｏ＿（１９）Ｈ＿４］ａｎｄＶａｌｅｎｃｅＤｅｔｅｒｍｉｎａｔｉｏｎｏｆＭｏｌｙｂｄｅｎｕｍＮＩＵＳｈｕ－ｙｕｎ；ＺＨＡＮＧＨｅｎｇ－ｂｉｎ；ＹＡＮＧＧｕａｎｇ－ｄｉ；ＮＩＥＦ...

关键词： Complex Synthesis Structure Molybdenum

Electrochemical　and　Spectroelectrochemical　Studies　of　Molybdenum　and　Neodymium　Complex　with　Diethyld

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Chemical Research in Chinese Universities 1998年第1期14卷 53-58页

作者： Yu, Zhen-xing Fu, Qing-hong zhang, heng-bin Niu, Shu-yun Li, Shu-jia Xun, Xiu-mei Jilin Univ Dept Chem Changchun 130023 Peoples R China

ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌａｎｄＳｐｅｃｔｒｏｅｌｅｃｔｒｏｃｈｅｍｉｃａｌＳｔｕｄｉｅｓｏｆＭｏｌｙｂｄｅｎｕｍａｎｄＮｅｏｄｙｍｉｕｍＣｏｍｐｌｅｘｗｉｔｈＤｉｅｔｈｙｌｄｉｔｈｉｏｃａｒｂａｍａｔｅＬｉｇａ... 详细信息

ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌａｎｄＳｐｅｃｔｒｏｅｌｅｃｔｒｏｃｈｅｍｉｃａｌＳｔｕｄｉｅｓｏｆＭｏｌｙｂｄｅｎｕｍａｎｄＮｅｏｄｙｍｉｕｍＣｏｍｐｌｅｘｗｉｔｈＤｉｅｔｈｙｌｄｉｔｈｉｏｃａｒｂａｍａｔｅＬｉｇａｎｄＹＵＺｈｅｎ－ｘｉｎｇ，ＦＵＱ...

关键词： Diethyld Molybdenum Studies Complex

Synthesis，X－ray Structure and Spectral Propertiesofa Tetra－component Heteropoly Compound

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Chemical Research in Chinese Universities 1994年第3期10卷 227-235页

作者： zhang heng-bin , YANG Guang-di,QI Xing-yi and LI Shu-jia( Department of Chemistry, Jilin University, Changchun,130023) XU Shan-peng (Department of chemistry,Heilongjiang University, Harbin, 150080)

he single crystal of a tetra-component heteropoly compound Mo_2Co_3O_(68) (H_2O_2)_2 ] [MoO_6]. 15(H_2O) was obtained in an aqueous solution with Na_2MoO_4 , Na_2WO_4, Co (NO_3)_2 and H_3PO_4 as starting materials. The erystallo-graphic data determined by means of X-ray diffraction analysis are: triclinic sys -tem,space group Pl ,Z= 2:a =1.9227(9) nm,b=1.9359(7)nm , c=1.2565(3)nm . a = 91. 43 (3), The Differential thermal and thermogravimetric analysis indicated the thermal stbility of the compound and its spectral properties were characterized by IR and XPS measurements .

关键词： Heteropoly compound P-W-Mo-Co system Synthesis Structure

Spectroelectrochemical studies of [Mo(dtc)_4][Eu(dtc)_4] and [Mo(dtc)_4][Er(dtc)_4]

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Chinese Journal of Chemistry 1997年第4期15卷 318-326页

作者： ZHAO,Yu-E FU,Qing-Hong zhang,heng-bin LI,Shu-Jia SUN,Chun-Ting SUN,Chia-ChungDepartment of Chemistry and Institute of Theoretical Chemistry,Jilin University,Changchun,Jilin 130023,China Department of Chemistry and Institute of Theoretical Chemistry Jilin University Changchun Jilin 130023 China

Redox and spectroscopic properties of the eight-coordination complexes of molybdenum and the rare-earth elements Eu or Er with N,N-diethyldithiocarbamate (dtc) were characterised by cyclic voltamrnetry and UV-visible absorption *** complex cation [Mo(dtc)4]+ is more stable than the complex anions [Eu(dtc)4]-and [Er(dtc)4]-in redox processes,and possesses good redox *** electron transfer number,formal standard electrode potential in the redox process for the complex cation and its diffusion coefficients were obtained by in aitu spectroelectro-chemistry.

关键词： Molybdenum rare earth redox UV-visible spectra