電化學位 的英文怎麼說
中文拼音 [diànhuàxuéwèi]
電化學位
英文
electrochemical potential-
This paper researches on the practical current and potential distributions on the positive and negative plates of automotive batteries in the course of their formation processes by the means of an in situ electrochemical scan, and then studies the influences of the formation and also the additives on the performance of the automotive plates
本文利用電化學掃描方法研究鉛酸蓄電池正負極板在化成過程中電流密度和電位分佈及化成對極板電性能的影響。同時分析了正負極添加劑的性質及其對極板性能的影響。We have more than 15 million pieces cells production ability per month and have more than 1, 200 employees in the factory. under hong kong management and strictly following the iso 9001 2000 quality assurance system, the company is the 2nd one in hong kong and the 3rd one in china to be granted the ovonic license for ni - mh rechargeable batteries
公司位於中國廣東省佛山市南海區金沙鎮聯沙開發區,擁有1 . 5萬多平方米的生產場地,公司「以人為本」 ,擁有一批傑出的材料學電化學專家和一支經過專業培訓的高素質思想穩定的員工隊伍,生產工藝和技術設備先進,管理制度科學規范。The instrument is integrated with a multi - channel high precision open circuit potential measurement system for the ion selective electrode and a potentiostat used in voltammetry, an analog lock - in amplifier is also presented to measure the response of light addressable potential sensor
對于不同的測量技術,儀器中集成了用於測量電極的多通道高精度開路電壓測量系統和用於溶出伏安法測量的多路電化學測量系統,以及用於測量光尋址電位傳感器的鎖相放大器。It combained potentiostat, potentiostatic circuit instrument and ac impedance measurement organticace, which can measure usual dynamic potentio - scan, experiment of dynamic potentio - scan, but also unique measurement of ac impedance measurement, also, this new type electrochemical workstation can carry on complex experiment, sucn as potentio / current scan ac impedance measurement procedural measurment, life - span - circle ac impedance measurement procedural measurement in order to fullfill the goal of track and analysis of parameter in various electrochemical conditions. this graduation thesis indicate the structure, function of the multifunct - ional electrochemical workstation
它把恆電位儀,恆電流儀和電化學交流阻抗分析儀有機地結合到一起,既可以做常規的基本測試如動電位掃描、動電流掃描試驗和電化學交流阻抗測量,也可以做基於這三種基本試驗的程式化試驗,如恆電流充電-電化學交流阻抗測量,電池壽命循環試驗-電化學交流阻抗測量試驗,從而完成多種狀態下電化學體系的參數跟蹤和分析。The main conclusions with innovative features acquired from the present work are as follows : ( 1 ) soft solution processing technique for preparing functional thin films was put forward and applied to preparing advanced inorganic functional thin films ; a series of molybdate and tungstate films with scheelite - type were prepared directly on metal substrates ( molybdenum and tungsten foils ) by using constant current electrochemical technique at room temperature ; a series of titanate thin films with perovskite - type were synthesized directly on titanium flakes by hydrothermal method in our country for the first time
通過上述研究工作,得到了如下具有創新性研究成果: ( 1 )首次在國內提出和運用軟溶液制備工藝技術進行無機功能薄膜材料的制備研究;首次在國內採用室溫恆電流電化學技術直接在金屬基底(鉬片和鎢四川大學博士學位論文片)制備了白鎢礦結構的鋁酸鹽、鎢酸鹽薄膜;首次在國內採用水熱合成技術在欽金屬片上直接沛叮備了鈣欽礦結構的欽酸鹽薄膜。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。Na + / h + antiporter is one sort of protein which on the membrane or vacuole membrane, they can transport na + retrorsely out of the cell or into the vacuole. most of the algaes and the salt plants have this kind of protein
Na ~ + h ~ +運輸蛋白是位於質膜和液泡上的一類運輸蛋白,它可以逆電化學梯度將na ~ +排出細胞外或區隔化于液泡中,普遍存在於藻類與鹽生植物中。In addition, the biosensor could be used for the detection of benzoic acid. the choline oxidase electrode based on polyaniline / polyacrylonitrile composite film showed sensitive and stable bioelectrochemical response to choline, which was influenced by ph, working potential and temperature
研究發現,基於聚苯胺/聚丙烯腈復合膜的膽堿氧化酶電極對膽堿具有靈敏和穩定的生物電化學響應,被測溶液的ph值、工作電位、使用溫度等對酶電極的響應有一定的影響。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。In acid copper sulphate solution, the nc copper has a more negative corrosion potential which is decreasing with reducing the grain size and diffusion impedance was only found in the as - prepared and as - annealed at 180 ? nc copper due to the diffusion within the pores and channels on the surface. both the tafel plots and eis study demonstrated that the nc copper exhibits a higher corrosion current and lower polarization resistance than its mc couterpart
在酸性硫酸銅溶液中,納米晶銅的腐蝕電位比微米晶銅要負,並且隨著晶粒尺寸的減小而降低。 eis研究表明,未退火的和180退火的納米樣品中發現了擴散阻抗,與表面孔洞和通道中的擴散有關。極化曲線外推法和電化學阻抗研究都表明納米晶銅的腐蝕電流比微米晶銅高,而極化電阻要低。In this paper, rebar corrosion state was judged with three electrochemical nondestructive measuring technologies, i. e. half - cell potential, a. c. impedance and time potential. when the rebar was transformed from passivation to depassivation, it can obtain the chloride ions corrosion critical content through taking and analyzing chloride ions content around the rebar
本文利用半電池電位法、交流阻抗法和時間電位法三種電化學無損檢測技術判斷評估試件在試驗過程中鋼筋腐蝕狀況,當鋼筋由鈍化狀態轉為活化狀態時,取樣分析鋼筋周圍氯離子含量,得到了不同技術條件混凝土的氯離子臨界濃度。The theoretic cycle capacity of limno2 is 286 mah g - 1, which has attracted a great deal of people to research. aim at the impurity of limno2 which was synthesized by the predecessor and the phase change during the electrochemical process, we try several methods, including wet moist chemical method, liquid state method, solide state method and liquid dipping method. at the same time, we study the synthesis of limnc > 2 in defferent atmosphere, for example air, argon and nitrogen
Limno _ 2具有286mah ? g ~ ( - 1 )的理論容量,這種高容量材料深受廣大研究者的關注,針對前人合成出的還有少量雜相和在電化學循環過程中出現相變四川人學碩l :學位論文的問題,我們嘗試了幾種合成方法:濕化學法、液相法、固相法和溶液浸漬法,並在不同氣氛:空氣、氮氣和氫氣中進行limnoz的合成研究。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。Although this method gives high sensitivity, the radioactive labels present many problems such as a potential hazard to analyst and environment, which limited its application in dna diagnostic laboratories. in order to overcome these problems a serious of non - radioactive dna probes such as fluorescent, chemiluminescent and electrochemical probes have been developed. although these new methods display many advantages, they have not been used to take place completely the traditional method because of low sensitivity or complex equipment or other shortcomings
自20世紀80年代以來,各種非同位素如酶、熒光素、生物素、地高辛標記的化學發光法和熒光分析法以及以電活性物質做標記的電化學方法相繼問世,這些方法雖然在一定程度上克服了同位素標記的缺陷,但由於存在靈敏度不夠高或檢測系統龐雜或儀器價格昂貴或標記物不穩定等缺陷,還不能完全取代傳統方法。A novel method ( in situ electropolymerization method ) of biosensor elaboration was put forward
提出了生物傳感器構制的新方法?原位電化學聚合法。The phenol biosensor prepared by in situ electropolymerization showed excellent operational and storage stability. the sensor lifetime was 8 months, which is much better than that ( in general 3 months ) reported in literatures
由原位電化學聚合法制備的酚傳感器具有優異的操作和貯存穩定性,其壽命高達8個月,遠高於文獻報導的結果(一般在3個月以內) 。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。These instruments can be divided into three categories, chromatographic separation methods including gas chromatography, liquid chromatography and ionic chromatography, spectrometric methods including atomic absorption, ultraviolet / visible absorption, infrared spectrometry, atomic emission spectrometry and fluorescence method, and electroanalytical methods including potentiometry, coulometry and voltammetry methods
如層析法中的氣相層析、液相層析及離子層析,光譜法中的紫外光可見光光譜法、原子吸收光譜法、紅外線光譜法、螢光光譜法、放射光譜法及拉曼光譜法,及電化學方析方法如電位法、庫倫法及伏安法等。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。It is including the structure of neurons, the distribution of ions concentration in or out of the neuron membrane, the electrochemical gradient of ions, the equilibrium potential, the resting potential and action potential of neuron, the ion theory of the transmembrane potential and the hodgkin - huxley ( hh ) equation
包括神經元的結構,神經元細胞膜兩邊離子濃度的分佈,離子的電化學梯度和平衡電位,神經元的靜息電位,動作電位,描述神經元膜兩邊電壓變化的離子學說以及hodgkin - huxley方程。分享友人