electrochemical reaction 中文意思是什麼

electrochemical reaction 解釋
電化反應
  • electrochemical : action
  • reaction : n 1 反作用，反應；反沖；反動力。2 【政治學】反動，倒退；復古（運動）。3 【化學】反應，【物理學】...
  1. The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered

    氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。
  2. 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

    本文首先運用tffa模型描述直接甲醇燃料電池（ dmfc ）陰極氧氣的傳遞和電化學反應過程，研究了過電位-電流密度曲線受陰極結構參數變化的影響程度，其中著重考慮了以下幾個參數：催化層的孔隙率，浸漬聚集體薄膜的厚度，浸漬聚集體的半徑，浸漬聚集體在催化層中的體積分數。
  3. The electrochemical study showed that the interaction mode is mainly intercalative binding in ph 7. 4 phosphate buffer solution. the uv - vis spectroscopic study further demonstrated the above results. through the electrochemical parameters such as charge transfer coefficient and standard electron transfer rate constant ks in the absence and presence dna, it was found that the reaction of aloe - emodin with dna forms an electrochemical active supramolecular complex

    本文對姜黃素的研究結果表明，在0 . 1m磷酸鹽緩沖液（ ph3 . 0 ）中，姜黃素于玻碳電極上存在可逆的單電子轉移過程，據此，本文建立了以差示脈沖伏安掃描法檢測姜黃素含量的新方法。
  4. Electrochemiluminescence ( ecl ) is a technique that combines chemiluminescence ( cl ) and electrochemistry ( ec ). the cl reaction was initiated by an electrochemical reaction at electrode surface. such an electro - initiation reaction introduces a large number of additional advantages, such as high sensitivity and selectivity, rapid and convenient operation and relatively simple instrumentation system

    它將電化學技術與化學發光檢測結合起來，彌補了電化學方法和化學發光方法的不足，具有靈敏度高、選擇性好、動力學范圍寬、檢測快速方便、儀器價格便宜等優點，近幾年來在分析化學，尤其在生物分析領域引起了人們的極大關注。
  5. The effects of the fabrication conditions on the crystal structure, grain size, micromorphology and electrochemical performance of these materials have been studied in depth. the reaction mechanism of the low - heating solid - state reaction method has also been investigated. in addition, a novel electrochemical method ( rpg method ) based on the concept of " ratio of potentio - galvano - charge capacity " has been for the first time developed to determine the diffusion coefficient of lithium - ion within insertion - host materials on the basis of the spherical diffusion model

    本論文較系統地考察了低熱固相反應法合成鋰離子電池正極材料的可行性問題，研究了工藝條件對材料的晶體結構、晶粒尺寸、微觀形貌及電化學性能等的影響，探討了低熱固相反應的機理，並通過引進「恆壓-恆流充電容量比」的概念，給出了一種測定鋰離子嵌入脫出固相擴散系數的新方法。
  6. We have made three - dimension electric conduct grid by hand and we have successfully used it as anode grid in lead - acid battery. this kind of three - dimension electric conduct grid can improve the utilization of pam by 7 - 9 % in different discharge current density and can reduce the plate electrochemical impedance to one tenth of the normal plate. also this kind of grid can improve the marginal reaction current density in a certain degree

    我們通過手工製作了三維導電體板柵，並成功的應用於電池的正極作為正極的板柵，這種三維導電體板柵能夠在各種不同的放電電流密度下提高正極活性物質利用率7 9 ，能夠使電池正極板的電化學阻抗降低到普通板柵的1 10左右，使正極板的極哈爾濱j _程大學碩十學位論文限反應電流密度略有所提高，但是這種板柵的耐腐蝕性能很不理想，使得所製作電池的壽命很短。
  7. Then, a three - dimensional, comprehensive, steady - state mathematical model is described to investigate the fluid flow, heat transfer, species transport and electrochemical reaction in the pem fuel cells

    然後，發展了一個用於研究質子交換膜燃料電池特性的三維綜合的數學模型，模型同時考慮了流體流動、熱量傳遞、電荷傳遞、多組分傳遞和電化學動力學。
  8. Oxygen diffusion transport and electrochemical reaction in the oxygen cathode of alkaline fuel cell ( afc ) and pemfc have been expressed with the tffa model, including oxygen transferring in gas channel of gas diffusion layer and reaction layer, oxygen dissolution and diffusion in thin - film of reaction layer, oxygen reaction and diffusion in flooded - agglomerate of reaction layer and the conduction of electron and ion. numeric algorithm of the model equations is also obtained

    本文將tffa模型應用於堿性燃料電池（ afc ）和質子交換膜燃料電池（ pemfc ）陰極，推導出陰極各種傳遞和反應過程的描述方程，包括氧氣在氣體擴散層和反應層氣體通道中的擴散，氧氣在反應層薄膜中的溶解和擴散，氧在反應層浸漬聚集體中的反應和擴散以及電子和離子的傳導，並給出方程的數值解法。
  9. The rate constant of the surface electrochemical reaction was determined as

    ，表面電極反應速率常數
  10. Model of electrochemical reaction charge transferring on surface of mineral grain and its flotation significance

    顆粒表面電化學反應電荷傳遞模型及其浮選意義
  11. But the comprehensive properties were improved remarkably. with the addition of carbon nanotubes, the polarization of charging process decreased, the plateau of discharge became flatter and the migration of potential of peaks value of cyclic voltemmograms reduced. for the other hand, the exchange current increased, ohm resistance and electrochemical reaction resistance of the electrodes decreased, the diffusion resistance of hydrogen and the resistance of adsorption decreased, too

    摻入碳納米管對儲氫合金電極的容量影響較小，但其電化學性能卻有較大的改善，主要體現在：充電的極化減小，放電平臺更加平穩、循環伏安曲線的峰值電位隨掃描速度增大的遷移量減小，交換電流密度增大，電極的歐姆電阻、電化學反應、擴散電阻和吸附電阻均減小。
  12. After finished the cyclic voltammetry experiments, the results showed that iron steel grid can act as good current collector in the aqueous electrolyte. while the scan rate was fall in the range of 0. 5 - 4. 0mv / s, electrochemical reaction of the lithium insertion / extraction in the solid phase was kinetically limited by the diffusion of lithium ions. after 40 cycles in aqueous electrolyte the discharge capacities of sample of s13 reached 77mah / g, and showed good cycle performance

    在水溶液中不銹鋼網可以作為電極的集流體，在0 . 5 - 4 . 0mv / s的掃描速度范圍內，鋰離子在尖晶石鋰錳氧化物的嵌入和脫嵌的電化學反應在動力學上是受鋰離子在固相中的擴散所控制，充放電實驗顯示樣品s13在水電解液中經過40個循環后達到77mah / g的放電容量，具有很好的循環穩定性。
  13. It was found that in the simulated physiological solution, the hydrogen bindings between some amido groups in the mp - 11 molecules are decomposed and the mp - 11 dimers become monomers. it induces the increase in the contents of the a - helical and ( 3 - turn conformation, the decrease in the content of the random coil conformation of mp - 11 as well as the increase in the exposure extent of the heme group. therefore, the reversibility of the electrochemical reaction and the electrocatalytic activity of mp - 11 for h2o2 reduction increase comparing the situation in the aqueous solution

    發現在模擬生理條件下， mp - 11分子的多肽鏈上一些酰氨基的氫鍵發生了解離，使部分雙聚的mp - 11分子變成單體分子， mp - 11分子二級結構中-螺旋和-轉角結構的含量增加，無規捲曲結構含量降低，導致了mp - 11分子中血紅素的暴露程度變大，因此mp - 11電化學反應的可逆性和對h _ 2o _ 2還原的電催化活性比在水溶液中有所增加。
  14. The results of the eis examination indicated that the electrochemical reaction of the snsb alloy electrode was a typical process jointly managed by both electrochemical reaction and diffusion

    電化學阻抗分析結果表明，錫銻合金電極過程是典型的電化學和擴散共同控制的特徵。
  15. The sol - gel film showed the excellent chemical and electrochemical properties as well as kept the quality electrochemical activity of those immobilized redox molecules. the modified molecules took place the typical adsorption controlled electrochemical reaction, and furthermore, the modified methylene blue gave the obviously electrochemical catalytic affection on oxidation of nadh or reduction of hemoglobin if they were immobilized in the film meanwhile

    同時以硅溶膠?凝膠膜為載體制得化學修飾電極，用sol - gel法在金電極上固定亞甲藍、硫堇及茜素s ，發現固定於納米溶膠?凝膠膜內的亞甲藍和硫堇均有良好的電化學活性，對同時固定於膜內的nadh 、血紅蛋白等生物分子產生顯著的催化氧化還原作用。
  16. The electrochemical impedance spectroscopy of anodic reaction shows that the formation of black nickel was mainly controlled by electrochemical reaction at low anodic potential, and is mainly controlled by electrochemical reaction and diffusion at high anodic potental. with the increasing of anodic potential., the formation of black nickel is still controlled by electrochemical re

    陽極反應的電化學阻抗譜表明，氧化電位較低時ni （ oh ） :氧化生成黑鎳的過程主要受電化學反應所控制，電位較高時，黑鎳形成過程主要受電化學反應及擴散混合控制，電位進一步增加，析氮反應占據主導優勢，陽極氧化過程仍主要受電化學反應及擴散混合控制。
  17. Development in research on electrochemical reaction resulting in oxygen contamination by slag in submerged arc welding process

    熔渣對焊接過程電化學致氧研究進展
  18. But electrochemical reaction is more difficult than that was sintered by microwave heating

    但是電化學反應難度比微波法合成的大。
  19. Over the past years, solid oxide fuel cells ( sofcs ) whose merits are clean, efficient and environmental - friendly, have attracted great attention for their use in the direct conversion of chemical energy into electrical energy through electrochemical reaction

    固體氧化物燃料電池（ sofc ）是通過電化學反應，將燃料中的化學能直接轉化為電能的發電裝置。它具有清潔、高效、環境友好等諸多優點，近些年來備受關注。
  20. So, the current density should be smaller, in view of the speed of electrochemical reaction, the optimum current density is about 1 ma / cm2

    因此，電流密度應適當低一些。綜合考慮反應速度，電流密度選擇11lla / cmz左右為宜。
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