放電化學 的英文怎麼說
中文拼音 [fàngdiànhuàxué]
放電化學
英文
discharge chemistry-
Electrochemical hydrogen absorbing desorbing behavior of double phase mg - ni alloy
合金的電化學吸放氫行為The structures and characteristics of several graphite samples are measured by means of powder x - ray diffraction ( xrd ), brunauer - emmer - teller ( bet ) surface area measurement, inductively coupled plasma ( icp ) spectroscopy, particle size analysis and electrochemical measurements. the effects of origin, structure, impurity, particle size, specific surface area of carbon materials on the electrochemical characteristics are studied. a synthetic graphite with abundant resources, low cost and favorable performance is determined as the raw material for modification of graphite
採用xrd 、 bet 、 icp 、激光粒徑分析及電化學性能測試等方法,對國內外多種典型石墨樣品的結構與性能進行比較,研究石墨材料的來源、晶體結構、雜質含量、顆粒大小、比表面積等因素對其充放電性能的影響,確定一種性能較好、價格低廉、來源廣泛的普通人造石墨粉作為熱處理與摻雜改性、以及復合結構炭材料研究的原材料。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。Double - way high impedence prepositive amplifier for electrochemical test
雙路高阻抗電化學測試前置放大器Management content : the company product mainly covers the microscope, the tool maker ' s microscope, the projecting apparatus, the sclerometer, the thickness gauge, the magnifying glass, the balance, the measuring instrument quantity meter, the mapping equipment, the metering equipment, to test the instrument, the electrochemistry instrument, the physical instrument, the analytic instrument, the biochemistry instrument, the non - destructive inspection, the medical instrument, the processing machinery and so on altogether 28 broad headings, 170 minor sort large - scale specialized precision instrument measuring appliance sale enterprises
經營內容:公司產品主要涵蓋顯微鏡、工具顯微鏡、投影儀、硬度計、測厚儀、放大鏡、天平、量具量儀、測繪儀器、測量儀器、實驗儀器、電化學儀器、物理儀器、分析儀器、生化儀器、無損檢測、醫療器械、加工機械等共28大類, 170餘個小類的大型專業精密儀器儀表銷售企業。In this paper, high concentration vanadium electrolyte has been prepared by electrolysis, graphite and graphite felt electrode also have been made, moreover, the electeodes have been activated, and based it, a lab - level vanadium battery has been manufactured. cyclic voltammetry, current step and invariable current charge / discharge method have been used to study the reactive mechanism of electrolysis, of vanadium electrode reaction and of electrode activation, also to investigate maiden charge process and electricity performance of vanadium battery. the influence of electrode activation and trace stibium ion, indium ion added into vanadium electrolyte has been discussed
利用循環伏安法、恆電流階躍法、恆電流充放電循環等電化學方法,探討了電解法制備釩液流電解質的反應機理,考察了釩的電極反應、電極表面活化處理對釩的電極反應的影響,結合電極反應分析了活化的機理;還考察了釩電池初次充電活化過程及恆流充/放電循環的電性能;並且考察了添加銻離子、銦離子對釩電池電性能特別是析氫行為的影響。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。The effects of various additives elements and doping methods on foam nickel electrode ' s performance were studied using constant current charge - discharge test. we compared two doping methods : mechanical mixing doping and chemical co - precipitation doping
利用恆流充放電實驗等電化學測試方法研究了不同摻雜元素及摻雜方式對泡沫鎳電極的影響作用,對機械混合摻雜和化學共沉積摻雜進行了比較。Comparison between electrochemiluminescence immunoassay and radioimmunoassay on test for carcinoembryonic antigen
電化學發光免疫法與放射免疫法對癌胚抗原檢測的比較Secondly, better performance lifepo4 / c composite was synthesized by adding proper content of sucrose to the reactants, test results exhibited the initial discharge capability could get 130mah. g - 1 and the capability didn ’ t fade down after more than ten cycles ’ test
2 .添加適量的蔗糖制備出電化學性能良好的lifepo _ 4 / c復合的正極材料,其初始放電比容量高達130mah . g - 1 ;經10次充放電循環,材料的比容量幾乎不衰減。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。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 charge and discharge performances of different composites were studied by the charge and discharge ; the structures of composites were characterized by sem ; the electrochemical properties of sulfur positive materials were characterized by cyclic voltammetry and eis. we studied the charge process, discharge process, charge - discharge efficiency, self heat, and self - discharge of lithium - sulfur system on system shuttle constant, conduct the mechanism of these processes and simply analyse them
以充放電技術研究了不同類別復合正極的充放電性能;以掃描電鏡技術觀測了復合正極的表面形貌;以循環伏安技術和交流阻抗技術研究了復合正極電極的電化學性能;並初步探討了鋰-硫電池體系中充電過程、放電過程、充放電效率、自熱和自放電等對體系飛梭常數的影響,推導了這些過程的機理並簡要的進行了分析。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。From the experiment we have found out that the carbon fibre can improve the anode performance when it was used as pam additive and meanwhile it can have some benefits to the anode life. when its content at 0. 2 - 0. 3 % in pam can achieve its best result and under this situation it can improve the utilization of pam by 5 % at different discharge current. carbon fibre and sulfate sodium is used as complex pam additive and its effect is better than that of carbon fibre which alone is used as additive
通過實驗我們發現,碳纖維作為鉛酸電池的正極活性物質添加劑能提高鉛酸電池正極的性能,並且對電池正極板的壽命有一定的好處,當碳纖維在正極活性物質中的含量為0 . 2 0 . 3能得到最理想的效果,這個時候能在各種不同的放電電流下提高正極活性物質的利用率5左右,並且能夠使極板的電化學阻抗降低。The electrochemical impedance spectroscopy of nickel electrodeposition indicates that nickel electrodeposition occurs in two steps, the medium frequency inductive loop is ascribed to the relaxation of the electrode coverage by an adsorbed intermediate such as niohads, the low frequency capacitive loop may be due to the inhibition of nickel electrodeposition by adsorbed hydrogen. the mechanism and equivalent circuit of nickel electrodeposition were proposed on the basis of the analysis of electrochemical impedance spectroscopy
不銹鋼電極上電積鎳的電化學阻抗行為表明氨絡合物體系鎳電沉積過程是二次放電過程,中頻感抗弧是由於中間吸附產物nioh _ ( ads )的弛豫現象引起,低頻容抗弧可能是由於吸附氫原子對鎳結晶的阻滯作用引起,依據實驗結果提出了氨絡合物體系鎳電沉積的反應機理和等效電路模型。The na2fepo4f cathode materials for sodium ion battery were prepared by solid state reaction and the influence of synthesizing temperature and morphology on the electrochemical performance of na2fepo4f powders in sodium ion batteries were systematically studied. the results indicate that na2fepo4f synthesized at 750 exhibited good electrochemical performance, whose first specific discharge capacity is 60mah / g, after 20 times cycling, the average specific discharge capacity is 51. 1mah / g
首先採用固相法制備了氟磷酸亞鐵鈉粉體,研究了不同煅燒溫度對合成材料顯微結構和電化學性能的影響,結果表明750下合成材料體現出較好的電化學性能,首次放電容量為60mah / g ,循環20次后,容量下降為51 . 1mah / g 。Based on a number of charging and discharging experiments, a thought is put forward that the polarization may be detected according to the terminal voltages at charging, terminal voltage at the short pause, and the soc ( state of charge ) ; the depolarization by momentary discharge according to the reference of optimal curve
在論文撰寫過程中,作者主要進行了如下方面的研究: -對鉛酸蓄電池的電化學機理進行充分研究,並在大量充放電實驗的基礎上,提出了依據蓄電池充電時和停充瞬間的端電壓和蓄電池荷電狀態檢測蓄電池極化狀況的思想。 -依據最佳曲線給定,採取瞬間放電減少極化。The results show : la2o3, ceo2, nd2o3 is applicable for the additives of mh electrode because of the good comprehensive performance of the negative especially during the high rate discharge phase ; y2o3 is not fit as an additive for mh electrode ; the ceo2 content in negative has great effects on the performance during the high rate discharge phase and 2 % ( mass percentage ) is the best one, furthermore, the improvement of purity of ceo2 is beneficial to the comprehensive performance ; the mixture of coo and ceo2 as a additive is more suitable for mh electrode during the high rate discharge phase whose properties are better than that of addition of coo and ceo2 respectively
研究表明, mh電極中添加la _ 2o _ 3 、 ceo _ 2 、 nd _ 2o _ 3顯著提高了電極電化學綜合性能,尤其是大電流放電性能,適宜作大電流放電下電池負極的添加劑; y _ 2o _ 3不適宜作負極添加劑; ceo _ 2添加量對大電流放電性能影響較大, ceo _ 2的適宜添加量2wt ;提高ceo _ 2純度能改善mh電極電化學綜合性能。 mh電極中添加coo 、 ceo _ 2復合添加劑后電極綜合性能比單獨添加coo和ceo _ 2更優良,適宜作大電流放電下電池負極的添加劑。Absorb spill with dry sand, then place into a chemical waste container. remove allsources of ignition. use a spark - proof and explosion proof tool and equipment
用干沙吸收,然後放入化學肥料容器,遠離火源,使用防電火花和防爆工具。分享友人