- 超電勢(shì)
- 超電位
- 超電壓
- 過電勢(shì)
- 過電位
- 過電壓
下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
overpotential中文什么意思
例句與用法
- 更多例句： 下一頁(yè)
- The anodic overpotential and reaction - rate distributions throughout the catalyst layer are affected by increasing the protonic conductivity to
增加電解質(zhì)的傳導(dǎo)率有助于陽(yáng)極催化層過電位和反應(yīng)速率均勻分布，從而提高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進(jìn)一步提高，單位質(zhì)量的pt的氧還原峰電流又進(jìn)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
本文運(yùn)用tffa模型分別考察了afc陰極過電位?電流密度的曲線和pemfc陰極伏安曲線受陰極結(jié)構(gòu)參數(shù)變化的影響程度。 - 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
結(jié)果顯示化學(xué)沉積co - ni - b 、 co - fe - b工藝在稀土元素( ce 、 la 、 y 、 dy ) 、能量(超聲波、磁場(chǎng))介入后，沉積過程、合金成分、鍍層形貌結(jié)構(gòu)和性能都有顯著變化，表現(xiàn)在：鍍液的陰極極化過電位和極化度降低，沉積速度提高；鍍層的結(jié)合力、表面質(zhì)量改善；鍍層中過渡族元素的含量增加，輕元素硼的含量降低，同時(shí)證實(shí)了稀土元素與過渡族元素共沉積的可能性；鍍層的顯微結(jié)構(gòu)由非晶態(tài)向微晶和多晶態(tài)轉(zhuǎn)變；鍍層的顯微硬度與耐磨性提高，力學(xué)性能優(yōu)化；鍍層的矯頑力降低；磁導(dǎo)率提高；鍍層的磁化強(qiáng)度在能量(超聲波、磁場(chǎng))和輕稀土元素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氯化血紅素存在下，青蒿素仍可被催化還原，陰極過電位降低了600mv 。配合物edta - fe具有類似氯化血紅素的催化性質(zhì)，它降低了qhs陰極過電位590mv 。在這個(gè)體系中，青蒿素在碳電極上的還原是一個(gè)借助于氯化血紅素催化的還原過程，氯化血紅素的存在降低了青蒿素還原活化能，促進(jìn)了青蒿素的分解。
百科釋義
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.
詳細(xì)百科解釋