nafion 中文意思是什麼

nafion 解釋
納菲薄膜
  1. In the straight dripping method, the function of the selectivity film could be exerted as well when 2ul5 % nafion was dripped to the electrode surface, ( 3 ) the selectivity of the electrode was also studied

    直接滴加法中在電極表面滴加2 l5的nafion溶液時,可以最好的起到選擇性膜的作用,達到對no測定的最好效果。
  2. The experimental results demonstrate that the suitable mea hot - pressing temperature and pressure are 120 and 15. 5mpa, respectively. the optimum catalyst loading in anode is 4 mg pt / cm2, and the best contents of nafion ionomer in anode and cathode layer are 45wt % and 35. 3wt %, respectively

    實驗結果顯示,制備膜電極時最佳的熱壓溫度和壓力分別為120和15 . 5mpa ;陽極催化劑的適宜載量為4mgpt / cm2 ;陽極和陰極催化劑層的nafion最優含量分別為45 . 0wt %和35 . 3wt % 。
  3. The membrane properties were found to be dependent upon the content of styrene. the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell. the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell

    對磺化膜的研究分析表明:膜的性能參數如離子交換容量、吸水率、水合系數、形體穩定性、導電性能、化學與熱穩定性等依賴于膜中苯乙烯含量,且接枝苯乙烯相互間的位阻效應對膜性能影響很大;膜的性能可與nafion膜相比較;質子在膜中的傳導遵循「似液體」質子傳導機理;電滲析與擴散作用使膜保持水平衡。
  4. For the pemfc cathode, besides above the parameters, the effects of the thickness of the reaction layer, the ion conductivity of nafion electrolyte and the electronic conductivity in carbon phase of the reaction layer on the electrode performance have also been investigated

    在對pemfc陰極的研究中,除了以上參數以外還考慮了反應層厚度, nafion ~ ( ? )電解質的離子傳導率以及反應層中碳相傳導率對電極性能的影響。
  5. In the thesis, we proposed a random lattice model of mea the lattice model randomly occupied by three kinds of particles, pt / c, nafion and ptfe ( poly - tetra - fluoro - ethylene ), was generated on a computer by the means of monte carlo method. it was supposed that current was only produced on those catalysts which have not only channels of electrons via carbon but also have channels of proton via nafion. the purpose of the work, in a word, is to find how many catalysts, pt / c, with such a two - types channels

    本文首先建立了質子交換膜燃料電池的膜電極的隨機方格子模型,在電極模型各格點位置用montecarlo方法生成隨機分佈的電極粒子、 nafion粒子和聚四氟乙烯團粒,認為只有那些既有質子傳輸通道,又有連續的電子通道和氣體擴散通道的胞元才產生有效的電流,而其餘胞元不產生電流,把電極的輸出電流轉化成一個概率事件。
  6. 2. co ( salen ) / nafion modified platinum electrode ( 1 ) the nitric oxide in the medium of natural seawater was determined using co ( salen ) / nafion modified platinum electrode for the first time, the best conditions are found as follows : the time of exclusion of oxygen bubbled with nitrogen for the electrochemical cell is 30min, the preparation time of saturated solution is 30min, the enrichment time is 3min when the concentration of nitric oxide is 10 - 6 mol / l and 7min when 10 - 7 mol / l and the electrochemical responses of the modified platinum microelectrode to no were evaluated by scanning from 0. 2v to iv

    天然海水介質中~氧化氮的電化學鋇定二、 eo ( sa一en ) znanon修飾電極1 .首次用co ( salen )閃afion修飾鉑電極對天然海水介質中的一氧化氮進行了測定,確定了最佳實驗條件,即反應池通氮除氧30min , no飽和溶液的制備時間為3omin , no溶液濃度在10一6mol / l時?富集時間是3min ,濃度在10一7mol / l時富集時間是7min ,電位掃描范圍0 . 2一1
  7. The features of modified electrode were investigated by cyclic voltammetry and the assay conditions were optimized. the modified electrodes were further covered with nafion membrane that could erase the interference

    和cll的三種鐵氰酸鹽修飾電極的性能及電化學特性,並研究了各種實驗條件對過氧化氫傳感器性能的影響。
  8. The general applications for spme are that fused silicate fibers were coated with various liquid polymeric coatings, such as polydimethylsiloxane ( pdms ) and polyacrylate ( pa ). lately, other more specialized materials have been developed, including ion - exchange coatings, liquid crystalline films, carbowax and nafion coatings

    后來又發展了一些有特點的塗層材料,如離子交換塗層、極性的nation全氟化樹脂塗層、導電聚合物聚吡咯( ppy )和聚- n -苯基吡咯( pppy )等。
  9. Nafion covering at the electrode surface as cation exchange resin could effectively prevent the disturb by some impurity ion as nitrite ion accordingly achieve the good selectivity of nitric oxide

    探討了nafion電極的選擇性, nafion作為陽離子交換樹脂覆蓋在鉑電極表面,能有效阻隔海水中的雜質離子如no _ 2 ~ -離子的干擾,從而達到對no的良好選擇性。
  10. Nation modified platinum electrode ( 1 ) the nitric oxide in the medium of natural seawater was determined using nafion modified platinum electrode for the first time, the best conditions are found as follows : the time of exclusion of oxygen bubbled with nitrogen for the electrochemical cell is 30min, the preparation time of saturated solution is 30min, the enrichment time is 5min and the electrochemical responses of the modified platinum microelectrode to no were evaluated by scanning from 0. 2v to iv

    主要研究結果如下:一、 nafion修飾鉑電極1首次用nafion修飾鉑電極對天然海水介質中的一氧化氮進行了測定,確定了最佳實驗條件,即反應池通氮除氧30min , no飽和溶液的制備時間為30min ,富集時間是5min ,電位掃描范圍0 . 2 1 . 0v ,並且確定了nafion修飾電極的檢出限是1 mol l ,線性范圍1 76 . 9 mol l ,相關性良好。
  11. ( 2 ) two methods including one - step and two - step methods were used to modify the platinum electrode. in the two - step method, the experiment conditions were confirmed, namely after modified by nafion film, the electrode was dipped in saturated solution of co ( salen ) for 24h. the electric current would decrease if the dipping time were too long

    2 .用兩科,方法對電極進行co ( salen ) / nafion修飾,即「一步法」和「兩步法」 ,對「兩步法」的實驗條件進行了選擇,即將電極表面先修飾好nafion膜后,再浸泡在co ( sa1en )飽和溶液中24h即可,時間再長則峰電流反而會減小。
  12. Preparation of nafion coated solid - phase microextraction fibers and its use in gc analysis

    塗層固相微萃取探頭的制備
  13. ( 4 ) nafion film has the function of enriching nitric oxide and also the mechanism was discussed

    Nafion膜具有富集no的作用,探討了nafion膜富集no的機理。
  14. The specimen in the experiments was manufactured with nafion - 117 ( dupont ) deposited two times with platinum

    Ipmc試樣是以nafion - 117薄膜為基底材料利用化學方法沉積pt離子制備的。
分享友人