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slow scan cyclic voltammetry
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     慢扫描红外热像仪之应用
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     slow down
     慢半拍 心身不耗竭
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     On "The Slow Nature
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     Scan at the World
     环球扫描
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  slow scan cyclic voltammetry
The redox stability of the metal chelate complex has been investigated with a slow scan cyclic voltammetry.
      
In a comparative study the in vitro corrosion behavior of a selection of nickel- and cobalt-based alloys for application in dentistry containing no noble metals was studied with slow scan cyclic voltammetry.
      


Nano-sized SnO_2 and SnO anode materials for Li-ion batteries were prepared by the rheological phase reaction method.The electrochemical performance of the samples was studied by the constant current charge-discharge and the slow scan cyclic voltammetry methods.The results indicated that the capacity and the cycle ability of the samples were sensitive to the(voltage) range of charge-discharge.When the voltage range was from 0.01 V to 1.20 V,the initial reversible capacity of Li/SnO_2(SnO) cells exceeded...

Nano-sized SnO_2 and SnO anode materials for Li-ion batteries were prepared by the rheological phase reaction method.The electrochemical performance of the samples was studied by the constant current charge-discharge and the slow scan cyclic voltammetry methods.The results indicated that the capacity and the cycle ability of the samples were sensitive to the(voltage) range of charge-discharge.When the voltage range was from 0.01 V to 1.20 V,the initial reversible capacity of Li/SnO_2(SnO) cells exceeded 600 mAh/g,the capacity retention index achieved 90% and 83% respectively for Li/SnO_2(SnO) cells after 20 cycles.

用流变相法制备了锂离子电池负极材料纳米SnO2和SnO。用恒流充放电和慢扫描循环伏安等方法考察了试样的电化学性能,结果表明:试样的循环性能和贮锂容量对充放电电压区间很敏感;当充放电电压区间在0.01~1.20 V时,Li/SnO2(SnO)电池的首次贮锂容量都超过了600 mAh/g,循环20次后的容量保持率分别可达90%和83%。

A series of nano-sized SnO_2 samples were prepared by the pyrolysis of Sn(OH)_4 precursor at different temperatures.The structural evolution of SnO_2 samples heat-treated at different temperatures was investigated by X-ray diffraction(XRD) topography and transmission electron microscopy.The electrochemical properties of SnO_2 as anode material for Li-ion batteries were studied by the galvanostatic charging-discharging experiments and slow scanning cyclic voltammetry experiment.The experimental...

A series of nano-sized SnO_2 samples were prepared by the pyrolysis of Sn(OH)_4 precursor at different temperatures.The structural evolution of SnO_2 samples heat-treated at different temperatures was investigated by X-ray diffraction(XRD) topography and transmission electron microscopy.The electrochemical properties of SnO_2 as anode material for Li-ion batteries were studied by the galvanostatic charging-discharging experiments and slow scanning cyclic voltammetry experiment.The experimental results show that the charge capacity and cycle-ability are sensitive to the heat-treated temperature,and the sample heat-treated at 800℃ boasts comparatively better electrochemical properties.

采用溶胶-凝胶法合成前驱物Sn(OH)4胶体,在不同温度下加热分解,得到一系列纳米SnO2试样。通过恒流充放电和循环伏安(CV)实验,表征了不同结构和颗粒度的纳米SnO2锂二次电池负极材料的电化学性能。结果表明,纳米SnO2试样的电化学性能对热处理温度很敏感,800℃热分解试样的电化学性能较好。

Slow scanning cyclic voltammetry was employed to study stainless steel electrode in different electrolytes, solvents and lithium-salt. The impedance diagrams of nano-SnO2 anode/electrolyte interphase at different discharge states were analyzed with alternative current impedance spectroscopy. The results suggest that nonaqueous electrolyte reacts also on the surface of a nano-SnO2 anode as in lithium rechargeable batteries during the initial charge/discharge cycles, and results in the...

Slow scanning cyclic voltammetry was employed to study stainless steel electrode in different electrolytes, solvents and lithium-salt. The impedance diagrams of nano-SnO2 anode/electrolyte interphase at different discharge states were analyzed with alternative current impedance spectroscopy. The results suggest that nonaqueous electrolyte reacts also on the surface of a nano-SnO2 anode as in lithium rechargeable batteries during the initial charge/discharge cycles, and results in the partial irreversible capacity loss. The electrochemical reaction of nano-SnO2 anode for lithium rechargeable batteries can be deduced as follows:a passivating film forms on the surface of nano-SnO2 particles first, then Li+ ions pass through the surface film and react with nano-SnO2 to produce amorphous Li2O and to form fine grains of Li-Sn alloys in the core region underneath the passivation film.

应用慢扫描循环伏安(CV)法和电化学阻抗谱(EIS)法分别研究了不锈钢电极在含有不同溶剂和锂盐电解液中的循环伏安行为和纳米SnO2复合电极在不同充放电状态下的界面阻抗和容抗。结果表明,纳米SnO2电极和碳负极相同,在首次放电过程中也存在电解液成分的不可逆还原,并造成一部分不可逆容量损失;提出了纳米SnO2电极首次放电的电化学反应过程是先在电极表面形成一层钝化膜(即SEI膜),Li+穿过膜与SnO反应生成金属Sn和非晶态的LiO,然后Sn再和Li+形成合金。

 
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