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overpotential中文是什么意思

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用"overpotential"造句"overpotential"怎么读"overpotential" in a sentence
中文翻译手机版
  • 超电势
  • 超电位
  • 超电压
  • 过电势
  • 过电位
  • 过电压
例句与用法
  • The anodic overpotential and reaction - rate distributions throughout the catalyst layer are affected by increasing the protonic conductivity to
    增加电解质的传导率有助于阳极催化层过电位和反应速率均匀分布,从而提高dmfc的性能。
  • Also , the steady mass specific peak current of oxygen reduction methanol on this modified platinum was 20 % more than that on the non - modified platinum , the overpotential of ox
    Vulcanxc 72活性碳粉的引入使抗co中毒的性能又得到了进一步提高,单位质量的pt的氧还原峰电流又进一步增大。
  • The tffa model calculation has been carried out to investigate the effects of structural parameters of the afc cathode and pemfc cathode on the electrode performance , which is respectively represented by the curve of cathode overpotential versus current density and the curve of cathode potential versus current density
    本文运用tffa模型分别考察了afc阴极过电位?电流密度的曲线和pemfc阴极伏安曲线受阴极结构参数变化的影响程度。
  • The result shows that with the addition of rare earth elements , ultrasonic irradiation and magnetic field , the chemical component , surface configuration , microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably . such kind of change can be described as the followings . firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases , but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced , and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce , la and decreases with the addition of heavy rare earth elements such as y . on the other side , when the alloy coatings passes through the heat treatment under the temperature of 250 or 500 , their properties will change
    结果显示化学沉积co - ni - b 、 co - fe - b工艺在稀土元素( ce 、 la 、 y 、 dy ) 、能量(超声波、磁场)介入后,沉积过程、合金成分、镀层形貌结构和性能都有显著变化,表现在:镀液的阴极极化过电位和极化度降低,沉积速度提高;镀层的结合力、表面质量改善;镀层中过渡族元素的含量增加,轻元素硼的含量降低,同时证实了稀土元素与过渡族元素共沉积的可能性;镀层的显微结构由非晶态向微晶和多晶态转变;镀层的显微硬度与耐磨性提高,力学性能优化;镀层的矫顽力降低;磁导率提高;镀层的磁化强度在能量(超声波、磁场)和轻稀土元素ce 、 la介入后提高,重稀土元素y介入后降低。
  • Mol l , artemisinin can be reduced via the hemin - catalysis and its original cathodic peak at - 1 . 08v completely disappeared . the cathodic overpotential of artemisinin is decreased ca . 600mv . this process is verified by the fact that complex edta - fe can also promote the artemisinin reduction with decreasing the cathodic overpotential of artemisinin for 590mv . these results show that the reduction of artemisinin at the glassy carbon electrode is a catalytic process with the aids of hemin . hemin can greatly decrease the cathodic activation energy of the reduction of artemisinin and promote the decomposition of artemisinin
    Mol l氯化血红素存在下,青蒿素仍可被催化还原,阴极过电位降低了600mv 。配合物edta - fe具有类似氯化血红素的催化性质,它降低了qhs阴极过电位590mv 。在这个体系中,青蒿素在碳电极上的还原是一个借助于氯化血红素催化的还原过程,氯化血红素的存在降低了青蒿素还原活化能,促进了青蒿素的分解。
  • Oxygen diffusion transport and electrochemical reaction in the oxygen cathode of direct methanol fuel cell ( dmfc ) have been expressed with the tffa model . model calculation has been carried out to investigate the effects of structural parameters of the dmfc cathode on the electrode performance , which is respectively represented by the curve of cathode overpotential versus current density . much attention has been paid to parameters including the porosity of the reaction layer , the thickness of the thin - film on the flooded - agglomerate , the radius of the flooded - agglomerate , the volume fraction of the flooded - agglomerates in the reaction layer
    本文首先运用tffa模型描述直接甲醇燃料电池( dmfc )阴极氧气的传递和电化学反应过程,研究了过电位-电流密度曲线受阴极结构参数变化的影响程度,其中着重考虑了以下几个参数:催化层的孔隙率,浸渍聚集体薄膜的厚度,浸渍聚集体的半径,浸渍聚集体在催化层中的体积分数。
  • Re also enhanced the deposition potential , polarizability and cathode overpotential of the baths , changed the result of chemical deposition reactions and actuate the deposit of cobalt alloy . and the chemical deposit co - b - re , co - ni - p - re alloy include re which electrode potential is much more negative was obtained . the structure of co - b - re was composed of microcrystal
    Re还提高了镀液的静止析出电位、极化度和阴极过电位,改变了化学沉积反应的强弱次序,加强了钴基合金的析出反应,成功地获得了含电极电位较负的re ( la , ce , y )的化学沉积co - b 、 co - ni - p薄膜。
用"overpotential"造句  
百科解释
Overpotential is an electrochemical term which refers to the potential difference (voltage) between a half-reaction's thermodynamically determined reduction potential and the potential at which the redox event is experimentally observed.Bard, A.
详细百科解释
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