氧化還原循環 的英文怎麼說
中文拼音 [yǎnghuàháiyuánxúnhuán]
氧化還原循環
英文
oxidation reduction cycle- 氧 : 名詞[化學] (氣體元素) oxygen (o)
- 還 : 還副詞1 (表示現象繼續存在或動作繼續進行; 仍舊) still; yet 2 (表示在某種程度之上有所增加) even...
- 原 : Ⅰ形容詞1 (最初的; 原來的) primary; original; former 2 (沒有加工的) unprocessed; raw Ⅱ動詞(原...
- 循 : 循動詞(遵守; 依照; 沿襲) follow; abide by
- 環 : Ⅰ名詞1 (環子) ring; hoop 2 (環節) link 3 (姓氏) a surname Ⅱ動詞(圍繞) surround; encircle;...
- 氧化 : [化學] oxidize; oxidate; oxide; burning; rust; oxygenize; oxido-; oxy-
- 還原 : 1 (恢復原狀) return to the original condition or shape; restore2 [化學] (還原作用) reduction;...
- 循環 : circulate; circle; round; repeat; loop; period; recurrence; cycling; circulating; mixing; circula...
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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。The oxygen cycle involves both oxidation and reduction.
氧的循環包含氧化和還原。In order to improve the electro - catalytic activity of platinum based catalyst to methanol oxidation, in this thesis, firstly prepare heteropoly acid modified pt / gc electrode with different concentration by cyclic voltammetry method, and then test the cyclic voltammetry curves individually in vitriolic and methanol solution. the study shows the best concentration for both phosphomolybdic acid and phosphotungstic acid is 1 10 ~ ( - 3 ) mol / l. and find the more heteropoly acid modified on electrode, the lower peak - up potential towards methanol because of the existence of oxygenous species
為了改善鉑基催化劑氧化甲醇的催化活性,本論文首先通過循環伏安掃描法制備了不同濃度磷鉬酸和磷鎢酸修飾的pt / gc電極,通過研究pt / gc電極在修飾前後在硫酸溶液中及含甲醇的硫酸溶液中的循環伏安行為發現,磷鉬酸和磷鎢酸均能在ptru / c電極上發生氧化還原反應,而且雜多酸修飾濃度對pt / gc電極氧化甲醇的催化活性有很大影響。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。In the first part of this paper, mn ( iii ) / mn ( ii ) couple in h2so4 was firstly applied as the positive couple to this system, i. e. redox flow cell. its chemical, electrochemical properties, redox kinetics and related parameters were characterized and discussed by rotating disc electrode ( rde ), cyclic voltammetry ( cv ), a. c. impedance ( a. c. imp ), chronoamperometry, tafel curve, and galvanostatic charge / discharge techniques. conclusions have been drawn as follows : 1. the electrochemical kinetics of mn ( iii ) / mn ( ii ) redox couple in 6. 3m h2so4 solution were studied by means of rotating disc electrode ( rde ) technique on platinum electrode
本文第一部分首次成功地將酸性介質中的mn ( iii ) / mn ( ii )電對應用於氧化還原液流電池這一新型儲能裝置的正極活性材料,通過旋轉圓盤( rde ) 、循環伏安( cv ) 、交流阻抗( a . c . imp ) 、恆電位階躍、 tafel實驗以及mn ( iii ) / mn ( ii )單電極的恆流充放電實驗,我們得出以下結論: 1 .在旋轉圓盤電極上,不同轉速范圍,不同的極化過電位, mn ( ) / mn ( )體系氧化還原電極過程的控制步驟不同,電荷傳遞、擴散傳質可分別或聯合成為控制步驟。4. a novel amperometric sensor has been constructed for the determination of h2o2. it was based on catalyzing electroreduction of hydrogen peroxide by metal hexacyanoferrate, which were electrodeposited on gold wire electrodes, under a certain potential
利用循環伏安法,在金電極表面電化學沉積一層鐵氰酸鎳膜( nihcf ) ,在一定電位條件下,它能快速催化還原過氧化氫,其響應電流與過氧化氫的濃度呈線性關系。So - called " increases the oxygen beautiful white skin " is forces the flesh circulation metabolism, every day piles up the human body the pressure creates the toxin and matter causes hormone is out of balance and the disorder mood, afresh conformity eliminate, borrows by ionization principle lead it out, gives the flesh sufficiently contains the oxygen space and balance method the human body, recuperate the qi and blood, the blood vessel gives to reply, returns to original state for is beautiful, moving, the kind charitable cheek concave - convex exquisite body
所謂的「增氧玉膚」即是強迫肌膚循環代謝,將人體每日堆積之壓力所造成之毒素、物引起之荷爾蒙失調及紊亂情緒,重新整合徹底排除,藉由離子化原理將其一一引導出來,給予肌膚充足含氧空間及人體之平衡方法,促全身疏筋活絡、氣脈通暢、活血化瘀、細胞扭曲之筋脈、血管予以回復,還原為美麗、動人、親切慈善之臉蛋凹凸玲瓏纖體。Simulation results show that based on the regeneration kinetics of the catalyst, properly raising the reoxidation temperature of the catalyst in the fluidized bed reactor either can obviously improve the performance of the system or can reduce the solid flux and hence the energy consumption
結果表明,使烴類選擇氧化(催化劑被還原)和催化劑氧化再生分開進行,特別是根據催化劑氧化再生動力學的要求,適當調節再生過程的溫度,既能明顯改善反應系統的性能,又可以大幅度降低催化劑固體顆粒的循環量,取得節能降耗的效果。Some bacteria and fungi possess the unique and extremely important biochemicalas set of beingable to catalyze the oxidation of numerous inert products, therebyinitiating reaction sequences that produce carbon dioxide and soreturn much carbon to a form that actively enters into life cycles once again
有些細菌和徽菌具有獨特且非常重要生化特性,能作為很多不起化學變化的產物之氧化的觸媒,因而開始一些連續發生的反應;這些反應系列會製造二氧化碳,而把許多碳還原到能再一次活躍地進入生命循環的一種形式。Chapter 4 : nugh determinations of cyclic voltarnmetry and diff pulse voltammetry their electrochemical properties are studied. we find that each of them has nice electrochemical properties and reversible redox properties. whereaftef, we obtain some beneficiai conclusions via comparison and analysis
第四章對它們的電化學活性進行了研究,通過循環伏安法,差分脈沖伏安法測試,發現該系列化合物都具有電化學活性,且具有良好的氧化還原可逆性。分享友人