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cyclic ac voltammetry
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     AC.
     存在K—Suslin树+ZF+┐AC。
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     AC.
     AC .
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     The Determination of Diuretics by Cyclic Voltammetry
     利尿剂的循环伏安法检测
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     The modification mechanism of the Bi doped MnO was discussed according to cyclic voltammetry and AC impedance.
     通过交流阻抗图谱分析及循环伏安实验对改性机理进行了探讨
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     The interactions of jamesonite with diethyl dithiocarbamate (DDTC) were studied by AC impedance measurement and cyclic voltammetry.
     通过循环伏安法、交流阻抗法研究了二乙基二硫代氨基甲酸钠(以D表示)与脆硫锑铅矿的相互作用.
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The electrochemical behaviors of mononuclear and symmetrical binuclear ruthenium (Ⅱ) complexes [Ru1: Ru(bpy)2(DIPB)(ClO4)2 and Ru2:(bpy)2Ru(DIPB)Ru (bpy)2(ClO4)4] containing dinuclear ligand 2,2' - bipyridine(bpy) and bridging ligand 1,4 - di(2 - imidazo[4,5 - f] [1, 10]phenanthroine) benzene (DIPB) on a platinum electrode have been investigated using cyclic voltammetry, cyclic ac voltammetry and differential capacitance techniques, etc. In acetonitrile solutions containing 0. 1mol/L TBAP, the Ru1 and...

The electrochemical behaviors of mononuclear and symmetrical binuclear ruthenium (Ⅱ) complexes [Ru1: Ru(bpy)2(DIPB)(ClO4)2 and Ru2:(bpy)2Ru(DIPB)Ru (bpy)2(ClO4)4] containing dinuclear ligand 2,2' - bipyridine(bpy) and bridging ligand 1,4 - di(2 - imidazo[4,5 - f] [1, 10]phenanthroine) benzene (DIPB) on a platinum electrode have been investigated using cyclic voltammetry, cyclic ac voltammetry and differential capacitance techniques, etc. In acetonitrile solutions containing 0. 1mol/L TBAP, the Ru1 and Ru2 complexes have shown the following electrochemical characteristics respectively: a single 1e and 2e reversible oxidation - reduction waves for their central ruthenium ions, two 1e and 2e reversible oxidation - reduction waves for their bipyridine ligands, slightly positive formal potentials of Ru2 compared with that of Ru1, and a much larger apparent diffusion coefficient of the Ru1 complex cation than that of Ru2, i. e., 9 .93×10-6cm2/s and 3.50×10-6cm2/s. It appears that the electron transfer process between the two central ruthenium ions through the bridging ligand is slower than that between the complex and electrode within the time period defined by cyclic ac voltammetry and differential capacitance techniques.

利用循环伏安、循环交流伏安和微分电容测定等电化学方法研究了由2,2'-联吡啶(bpy)和桥联配体1,4-二(2-咪唑并[4,5-f][1,10]邻菲咯啉)苯(DIPB)配位而成的单核钌配合物[Ru1:Ru(bpy)_2(DIPB)(ClO_4)_2]和对称双核钌配合物[Ru2:(bpy)_2Ru(DIPB)Ru(bpy)_2(ClO_4)_4]在铂电极上的电化学行为.研究结果表明,在0.1mol/L高氯酸四丁基铵(TBAP)的乙腈溶液中,这两种配合物的中心钌离子在铂电极上均呈现一对氧化还原峰,而配体2,2'-联吡啶则呈现两对氧化还原峰.单核Ru1和双核Ru2所对应的各组氧化还原峰分别符合可逆的单电子和二电子传递反应过程的特征,所对应的条件电位(Fromal Potential)Ru2较Ru1有轻微正移.Ru1和Ru2所对应的配位阳离子的扩散系数分别为9.93×10~(-6)cm~2/s和3.50×10~(-6)cm~2/s.在循环交流法和微分电容法确定的时间量程内,两中心钌离子在桥联配体间的电子传递过程较它与电极间的慢.

The electrochemical behavior of mononuclear and symmetrical binuclear ruthenium(Ⅱ) complexes [Rul: Ru (bpy)2DIPB (ClO4 )2, Ru2: (bpy )2 Ru (DIPB )Ru (bpy )2 (ClO4)4, Ru3: Ru (phen)2DIPB (ClO4)2 and Ru4: (phen)2 Ru(DIPB )Ru (phen)2 (ClO4)4] containing binuclear ligand 2, 2'-bipyridine(bpy), 1, 10-phenanthroline (phen ) and bridging ligand 1, 4-di- [2-imidazo [4, 5-f] [1, 10] phenanthroine benzene (DIPB ) on a platinum electrode and the intermetallic interaction of binuclear complexes have been investigated using...

The electrochemical behavior of mononuclear and symmetrical binuclear ruthenium(Ⅱ) complexes [Rul: Ru (bpy)2DIPB (ClO4 )2, Ru2: (bpy )2 Ru (DIPB )Ru (bpy )2 (ClO4)4, Ru3: Ru (phen)2DIPB (ClO4)2 and Ru4: (phen)2 Ru(DIPB )Ru (phen)2 (ClO4)4] containing binuclear ligand 2, 2'-bipyridine(bpy), 1, 10-phenanthroline (phen ) and bridging ligand 1, 4-di- [2-imidazo [4, 5-f] [1, 10] phenanthroine benzene (DIPB ) on a platinum electrode and the intermetallic interaction of binuclear complexes have been investigated using cyclic voltammetry, cyclic ac voltammetry and differential capacitance techniques, etc. In acetonitrile solution with a concentration of 0. 1 mol· dm -3 TBAP, the central ions in four complexes all display single le and 2e reversible oxidation- reduction waves on the cyclic voltammograms, with apparent diffusion coefficients of the mononuclear complexed cations being larger than that of the binuclear ones. The apparent diffusion coefficients for complexed cations with auxiliary ligands bpy are also found to be larger than that with ligands phen. It appears that the overlapping of two continuous sin- gle-electron processes by cyclic ac voltammetry and differential capacitance techniques occurs during the redox processes of the central ions binuclear complexes. The results show that a weak electronic interaction exits between the two central ruthenium ions in binuclear complexes.

应用循环伏安、循环交流伏安和微分电容技术等电化学方法研究了由 Ru(Ⅱ)与 2,2’-联吡啶(bpy)、1,10-邻菲咯啉(phen)和桥联配体1,4-二[2-咪唑并[4,5-f]邻菲咯啉]苯(DIPB)配位而成的四种配合物[Rul:Ru(bpy)2DIPB(ClO4)2、RU2:(bpy)2Ru(DIPB)Ru(bpy)2(ClO4)4、Ru3:Ru(phen)2DIPB(ClO4)2和 Ru4:(phen)2 RU(DIPB)Ru(phen)2(ClO4)4]在铂电极上的电化学行为及金属间的相互作用. 研究结果表明,在高氯酸四丁基铵(TBAP)的乙腈溶液中,单、双核中心离子在循环伏安图上分别呈现1对可逆的1电子和2电子的氧化还原波,单核对应的配位阳离子的扩散系数较双核的大,辅助配体为bpy的配位阳离子的扩散系数较phen的大应用循环交流伏安法和微分电容技术研究则发现,双核中心离子的氧化还原过程表现为2个连续单电子过程的重叠,金属间的相互作用较弱

The electrochemical characteristics and intermetallic interaction of symmetrical binuclear ruthenium(Ⅱ) complexes [Ru2:(bpy) 2Ru(DIPB)Ru(bpy) 2(ClO 4) 4 and Ru2_2H:(bpy) 2Ru(DIPB-2H)Ru(bpy) 2(ClO 4) 2 ]containing dinuclear ligand 2,2_bipyridine(bpy) and bridging ligand 1,4_di[2_imidazo[4,5_f][1,10] phenanthroine]benzene(DIPB) or 1,4_di[2_dehydrogen_imidazo[4,5_f][1,10] phenanthroine]benzene(DIPB_2H) on a platinum electrode have been investigated using cyclic voltammetry,cyclic ac voltammetry and...

The electrochemical characteristics and intermetallic interaction of symmetrical binuclear ruthenium(Ⅱ) complexes [Ru2:(bpy) 2Ru(DIPB)Ru(bpy) 2(ClO 4) 4 and Ru2_2H:(bpy) 2Ru(DIPB-2H)Ru(bpy) 2(ClO 4) 2 ]containing dinuclear ligand 2,2_bipyridine(bpy) and bridging ligand 1,4_di[2_imidazo[4,5_f][1,10] phenanthroine]benzene(DIPB) or 1,4_di[2_dehydrogen_imidazo[4,5_f][1,10] phenanthroine]benzene(DIPB_2H) on a platinum electrode have been investigated using cyclic voltammetry,cyclic ac voltammetry and differential capacitance techniques,etc.In acetonitrile solutions with a concentration of 0.1 mol/L TBAP,the central ruthenium ions in Ru2 and Ru2_2H complexes have shown a single 2e reversible oxidation_reduction wave on the cyclic voltammograms with basically the same formal potentials of Ru2_2H and Ru2 and a slightly larger apparent diffusion coefficient of the Ru2_2H complex cation than that of Ru2,i.e.,3.94×10 -6 cm 2/s and 3.50 ×10 -6 cm 2/s respectively.It appears that an enhanced electronic interaction exists between the two central ruthenium ions in the deprotonation of the bridging ligand(DIPB).

应用循环伏安、循环交流伏安和微分电容测定等电化学方法研究了由 2 ,2一联吡啶(bpy)和桥联配体 1,4_二 [2_咪唑并 [4 ,5_f]邻菲咯啉 ]苯 (DIPB)或 1,4_二 [2_脱氢咪唑并 [4,5_f]邻菲咯啉 ]苯 (DIPB_2H)所形成的对称双核钌配合物 (Ru2 :(bpy) 2 Ru(DIPB)Ru(bpy) 2 (ClO4 ) 4 和Ru2_2H :(bpy) 2 Ru(DIPB_2H)Ru(bpy) 2 (ClO4 ) 2 )在铂电极上的电化学性质以及金属间的相互作用 .研究结果表明 ,在 0 .1mol/L高氯酸四丁基铵 (TBAP)的乙腈溶液中 ,中心离子在循环伏安图上均呈现 1对可逆的 2电子氧化还原波 ,电位也几乎不变 ,其所对应的配位阳离子的扩散系数分别为 3.50×10 - 6 cm2 /s和 3.94× 10 - 6 cm2 /s.循环交流伏安和微分电容测定研究发现 ,桥联配体去质子化后 ,中心离子间的电子相互作用增强

 
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