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稳态阴极极化
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  steady polarization curves
     The anomalous codeposition behavior of Co-Ni alloys from sulfamate electrolytes containing various Co2+/Ni2+ ratios was investigated by steady polarization curves and electrochemistry impedance spectroscopy (EIS) measurements.
     通过稳态阴极极化和电化学交流阻抗(EIS)等方法,研究了在不同钴镍金属离子比例的氨基磺酸电解液中,Co-Ni合金的电化学共沉积行为。
短句来源
  “稳态阴极极化”译为未确定词的双语例句
     The cathodic process of zinc electrowinning in solution containing ammonia complex was studied by cathodic polarization and chronoamperometric method, which were tested with CHI650 electrochemistry lab.
     采用CHI650电化学工作站测定了在锌氨络合物体系中锌电沉积的稳态阴极极化曲线及电流—时间暂态曲线。
短句来源
     Catalytic abilities for hydrogen evolution of different electrodes in(1 mol·L~(-1)) NaOH solution were evaluated on the basis of electrochemical steady-state polarization curves and(alternating) current impedance spectrum technology.
     通过稳态阴极极化曲线和电化学交流阻抗技术考察了不同电极在1 mol.
短句来源
     In order to gain better catalyze performance of air electrode on low polarization range,air electrode with catalyze of carbon based manganese dioxide was prepared,the effect of catalyze and preparation process on air electrode was investigated by measuring cathode polarization curve.
     为了使空气电极在近低极化区获得较好的催化效果,本文以碳载MnO_2为催化剂制备了空气电极,通过测定稳态阴极极化曲线,研究了催化剂及电极制备工艺对氧空气电极的电化学性能的影响。
短句来源
     The compound oxygen electrodes with carbon nanotube and perovskite were prepared,the catalysis mechanism of oxygen reduce was analyzed. With the method of cathode polazation curves,the exchange current densities of the oxygen electrodes were tested.
     以纳米碳管与钙钛石制备了复合催化剂氧电极,分析了电极中氧还原的催化机理,利用稳态阴极极化测试法,测试并分析了所制氧电极的交换电流密度.
短句来源
  相似匹配句对
     STEADY STATE REVERSIBLE VOLTAMMETRIC WAVES OF MICROELECTRODES
     微电极的稳态可逆极化曲线
短句来源
     THE SUDDEN RISE IN POTENTIAL OF ANTIMONY IN THE COURSE OF CATHODIC POLARIZATION
     锑在阴极极化过程的电位突跃
短句来源
     Kineties law of nickel electrodeposition from a leaching solutioncontaining ammomia and chloride was investigated by means of steady-state po-larization curves.
     主要采用稳态极化曲线来初步探讨镍阴极电沉积的动力学规律。
短句来源
     Cathodic Polarization Behaviors of Jet Electrodepositing Nickel
     喷射电沉积镍的阴极极化行为
短句来源
     Catalytic abilities for hydrogen evolution of different electrodes in(1 mol·L~(-1)) NaOH solution were evaluated on the basis of electrochemical steady-state polarization curves and(alternating) current impedance spectrum technology.
     通过稳态阴极极化曲线和电化学交流阻抗技术考察了不同电极在1 mol.
短句来源
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The preparation method of NiMo RuO 2 composite coating, micrographic surface feature and roughness factor of the coating, influence of content of RuO 2 on electrocatalytic activity, steady state polarization curves and electrochemical parameters, and stability of the electrode in 30% KOH contaning 10×10 -6 Fe 3+ were repored. Experement results showed the NiMo RuO 2 electrode has more excellent electrocatalytic activity and stability than NiMo electrode.

报道了NiMo-RuO2复合催化层的制备方法、电极的表面形貌和表面粗糙因子、RuO2含量对析氢过电位的影响、电极的稳态阴极极化曲线和电化学反应动力学参数、电极在含Fe3+离子的碱溶液中的稳定性.实验结果表明:在NiMo合金中引入RuO2微粒增大了电极的真实反应面积,改善了电极的催化活性和抵抗Fe3+离子去活性作用的能力

The anomalous codeposition behavior of Co-Ni alloys from sulfamate electrolytes containing various Co2+/Ni2+ ratios was investigated by steady polarization curves and electrochemistry impedance spectroscopy (EIS) measurements. It was demonstrated that the electrochemical behavior of Co-Ni alloy deposition from sulfamate electrolytes was different significantly from that of from other electrolytes such as chloride or sulfate solutions. It is believed that the codeposition of CO-Ni alloys is inhibited by the...

The anomalous codeposition behavior of Co-Ni alloys from sulfamate electrolytes containing various Co2+/Ni2+ ratios was investigated by steady polarization curves and electrochemistry impedance spectroscopy (EIS) measurements. It was demonstrated that the electrochemical behavior of Co-Ni alloy deposition from sulfamate electrolytes was different significantly from that of from other electrolytes such as chloride or sulfate solutions. It is believed that the codeposition of CO-Ni alloys is inhibited by the adsorption of heteronuclear complexes on the electrode surface and the complexes are formed by the sulfamate anion as the bidentate ligand. From the standpoint of crystal-field theory, high-spin cobalt complexes with higher energy are less stable than that of nickel. Therefore the inhibition of sulfamate anion to Ni2+ is stronger than that to Co2+ and it cause the preferential reduction of Co2+ from the sulfamate solution. Moreover, accordig to the Nyquist plot, a elecrical equivalent circuits for simulating the EIS of Co-Ni codeposition was composed and the reaction kinetic mechanism of the Co-Ni alloy electrochemical codeposition was studied.

通过稳态阴极极化和电化学交流阻抗(EIS)等方法,研究了在不同钴镍金属离子比例的氨基磺酸电解液中,Co-Ni合金的电化学共沉积行为。结果表明在氨基磺酸体系中,导致Co-Ni合金异常共沉积行为的原因和在硫酸盐,或氯化物体系中的不同。不是由于 Co~(2+)抑制了Ni的沉积,而是由于NH_2SO_3~-作为双齿配体形成的异核络合物在电极表面吸附,阻滞了镍离子的还原过程。并且以晶体场理论为基础解释了Co~(2+)和NH_2SO_3~-形成的高自旋络合物,比Ni~(2+)所形成的络合物具有较高的晶体场稳定化能(CFSE),容易分解。因此吸附在电极表面的氨基磺酸根离子对Co~(2+)沉积的阻滞作用小于对Ni~(2+)的。这样就导致了在氨基磺酸电解液体系中Co~(2+)的优先沉积。阳极线性扫描曲线表明, 钴镍合金中镍含量越高,沉积层在热力学上越稳定,耐蚀性也越好。同时通过EIS的测试,利用等效电路的分析方法和交流阻抗谱解析理论,提出了氨基磺酸电解液中Co-Ni合金共沉积的动力学机理,较好地解释了实验结果。

The cathodic process of zinc electrowinning in solution containing ammonia complex was studied by cathodic polarization and chronoamperometric method, which were tested with CHI650 electrochemistry lab. The experimental results show that, the electrocrystallization of zinc follows the mechanism of instantaneous nucleation, and the crystal growth rate increases with negative shift of applied potential. No obvious change in nucleation modes is found with the addition of additive, while its growth rate decreases...

The cathodic process of zinc electrowinning in solution containing ammonia complex was studied by cathodic polarization and chronoamperometric method, which were tested with CHI650 electrochemistry lab. The experimental results show that, the electrocrystallization of zinc follows the mechanism of instantaneous nucleation, and the crystal growth rate increases with negative shift of applied potential. No obvious change in nucleation modes is found with the addition of additive, while its growth rate decreases deeply. According to equilibrium potential and dynamic factors, such as exchange current density and transfer coefficient, it is proved that the ion discharging at the cathode directly is Zn(NH_3)~(2+)_2; while the main species of complex is Zn(NH_3)~(2+)_4 in the solution.

采用CHI650电化学工作站测定了在锌氨络合物体系中锌电沉积的稳态阴极极化曲线及电流—时间暂态曲线。结果表明:锌的阴极电结晶过程是以瞬时成核方式进行的,随外加电位负移,晶体的向外生长速率增大;添加剂的加入不会改变锌阴极电沉积的成核方式,但将大大减小晶体的向外生长速率。通过对不同NH3浓度下测得的阴极极化曲线的分析,可获得各条件下的平衡电位,以及阴极过程动力学参数(交换电流密度J0、传递系数α),进而推导出溶液中存在的主要离子为Zn(NH3)2+4,在阴极直接放电的络离子为Zn(NH3)2+2。

 
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