電極極化 的英文怎麼說
中文拼音 [diànjíjíhuà]
電極極化
英文
electrode polarization-
Presence of vulcan xc - 72 active carbon powder in the pt / moox / gc composite electrode by electrochemical codeposition made peak potential of methanol oxidation a further negative shift of about 50mv and a further promotion of co - tolerant performance for methanol oxidation
催化劑中vulcanxc - 72活性碳粉的引入即共沉積制備的pt moo _ x c gc電極催化劑甲醇氧化峰電位又進一步負移50mv左右，抗co中毒催化性能又進一步提高。In this thesis, in order to reducing the amount of the pt catalyst, improving the electrocatalytic activity of the pt catalysts and utilization ratio of pt, the electrochemical codeposition method by cyclic voltammetry ( cv ) was used to prepare a series pt / moox / glassy carbon ( gc ) composite electrodes with high dispersibility. the composite electrode, pt / moox / gc, was characterized to study its composition and its electro chemical behavior by cv. using the xrd and sem techniques, the size and the dispersion degree of the catalyst particles were studied in presence or absence of moox in the catalyst
為了降低主催化劑pt的用量、提高pt的活性和利用率，本論文利用循環伏安法共沉積制備高分散的pt moo _ x催化劑顆粒，利用循環伏安電化學表徵、 xrd和sem技術研究了引入moo _ x后的催化劑即pt moo _ x顆粒的粒子大小、分散狀態；利用icp - aes定量分析pt moo _ x催化劑顆粒的組成含量；並藉助于電化學方法分別評價了pt moo _ x gc電極催化劑的對甲醇的電催化活性和穩定性、氧還原電催化活性。Consumable electrode melting technique
自耗電極熔化技術Aerospace ; plug - in relays ; dc 28 v, two - and four pole, 5 amp, polarized, monostable
航空航天.直流28v . 5a . 2和4極極化單穩態插入式繼電器Aerospace ; plug - in relays ; dc 28 v, one - and three pole, 10 amp, polarized, monostable
航空航天.直流28v . 10a . 1和3極極化單穩態插入式繼電器Second, carbon nanotube ( cnt ) was used in the fabrication of xanthine oxidase ( xod ) biosensor. xod / cnt / gc electrode was fabricated. the influences of cnt, ph and scan rate to the electrode were discussed
系統地研究了ph 、掃速對hrp酶電極電化學性能的影響，優化了電極的制備條件，實現了hrp酶電極對h2o2的響應，並考察了電極的穩定性。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
結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素（ ce 、 la 、 y 、 dy ） 、能量（超聲波、磁場）介入后，沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化，表現在：鍍液的陰極極化過電位和極化度降低，沉積速度提高；鍍層的結合力、表面質量改善；鍍層中過渡族元素的含量增加，輕元素硼的含量降低，同時證實了稀土元素與過渡族元素共沉積的可能性；鍍層的顯微結構由非晶態向微晶和多晶態轉變；鍍層的顯微硬度與耐磨性提高，力學性能優化；鍍層的矯頑力降低；磁導率提高；鍍層的磁化強度在能量（超聲波、磁場）和輕稀土元素ce 、 la介入后提高，重稀土元素y介入后降低。The corrosion behavior of nanocrystalline ( nc ) copper bulks with various grain sizes prepared from igc ( inert gas condemsation ) and vacuum annealing in comparison with conventional microcrystalline ( mc ) copper ( as - rolled and electrolytic ) in acid copper sulphate solution and neutral solution containing chlorides under free corrosion conditions and anodic polarizations has been studied using potentiodynamic polarization, potentiometric analysis, cyclic voltammetry and electrochemical impedance spectroscopy. x - ray diffraction was used to estimate the grain size of the annealed nc copper. field emission gun scanning electron microscopy and x - ray energy - dispersive spectroscopy was used to characterize the surface morphology and analyze the surface composition after the polarization and potentiometric test of both nc and mc copper
本文研究了用igc （惰性氣體蒸發凝聚原位溫壓法）制備並真空退火到不同晶粒尺寸的納米晶銅和微米晶銅（冷軋紫銅、電解銅）在酸性硫酸銅溶液和中性含氯溶液中，在自腐蝕狀態和陽極極化狀態下的腐蝕性能。使用了動電勢極化、電位測定、循環伏安法（ cv ）和電化學阻抗譜（ eis ）等方法。 x -射線衍射（ xrd ）的方法用來估算納米晶銅晶粒尺寸。" electrochemical performance of sn - substituted lani5 - based rapidly solidified alloys ", demin chen, lian chen, ke yang, min tong, ruibin long, wensheng sun and yiyi li, accepted by journal of alloys and compounds
"粘結劑對儲氫合金電極電化學容量的影響" ，陳德敏，丘思曉，楊柯，張綏生，李依依，材料研究學報，已接收。Standard test method for conducting cyclic potentiodynamic polarization measurements for localized corrosion susceptibility of iron -, nickel -, or cobalt - based alloys
鐵鎳鈷基合金的局部腐蝕敏感性的循環動電勢極化強度的試驗方法The results were shown as follows : ( 1 ) the electrolyte components for electroplating pb - sn coatings in fluoborate system were studied. the effects of concentrations of main salt, dissociative acid, inhibitor, antioxidation and surfactant on the cathode polarization curves of electroplating pb, sn and pb - sn alloys and contents of alloying element were investigated systematically. the scale of current density was confirmed using hull cell
（ 1 ）研究了氟硼酸體系電鍍pb - sn合金鍍層的電解液組成，詳細討論了主鹽濃度、游離酸濃度以及阻化劑、抗氧化劑、表面活性劑等添加劑對氟硼酸體系電沉積pb 、 sn及pb - sn合金陰極極化曲線的影響和對pb - sn合金鍍層中合金含量的影響。A hydrogen - oxygen proton exchange membrane fuel cell, with a control system for pressure, temperature and humidity, was set up
摘要在組裝的單體質子交換膜氫氧燃料電池系統上，用線性電位掃描法研究了不同電池溫度和濕度下的陽極極化行為。The action of the combined brightener was studied by hull cell test, the determination of cathodic current efficiency and polarization curves
通過赫爾槽試驗，電流效率及陰極極化曲線的測量研究了該光亮劑的作用效果。Method for determination of the oxidation resistance of graphite electrodes
石墨電極氧化性測定方法To influence the composition and the permutation mode of reaction particle on the interface and the reaction speed of interface by complex action, thus preventing the metal ion from discharging and improving the cathode polarization
通過絡合作用，影響界面上反應粒子的組成、排列方式及界面反應速度，從而阻化金屬離子的放電，提高陰極極化。The results show that mno which not be modified can not be use as electrode active materials because of its poor electrochemical activity. meanwhile, the rechargeabilify of mno modified by bi and pb is improved. bismuth could prolong the second electron equivalent discharge and lead could improve the first electron equivalent discharge performance
I44 ）對熱分解產物進行了充放電，循環伏安，恆電流極化， tafe曲線分析，交流阻抗分析，得出未摻雜的mno直接作為電極活性材料，其電化學活性很差，但通過摻bi ， ph進行改性，提高了其可充性， 1的影響主要在於第二電子放電， ph則可以延長第一電于放電The reaction mechanism for methanol oxidation at pt / moox / gc composite electrode involved the proton spillover effect from hydrogen molybdenum bronze, and a bifunctional reation mechanism for methanol oxidation by providing a hydrous molybdenum oxide to oxidize the intermediates, coads, for keeping cleaning platinum surface and make it easier for methanol to be oxidized on the clean platinum
通過計時電流圖中的電流衰減情況和cv實驗結果比較可得出， pt moo _ x gc電極催化劑具有一定的抗- co -中毒性能。 pt moo _ x gc的甲醇氧化機理是通過提供水合的氧化物來提高抗co中毒催化性能和質子溢出效應，從而加快甲醇氧化速度的。The compounds that make up both electrodes react with each other via the electrolyte to generate electrons
用以製成兩個電極的化學物質透過電解質互相反應，產生電子。Effect of electrode polarization on stress corrosion cracking of 7075 aluminum alloys
電極極化對鋁合金應力腐蝕斷裂敏感性的影響Because the current passing through measurement circuit is near to zero, the effects of electrode polarization on the measurement results are virtually eliminated
由於流過測量電路的電流近似為零，因此消除了電極極化電壓對測量結果的影響，提高了測量的精度。分享友人