catalyst activity 中文意思是什麼

catalyst activity 解釋
催化劑活性
  • catalyst : n. 【化學】觸媒，催化劑，接觸劑〈又作 catalytic agent〉；〈比喻〉觸發因素，〈口語〉（善用熱情、言語等打動他人的）有感染力的人。
  • activity : n. 1. 活動；活躍；動作；活動力；能動性。2. 活性；放射性。3. 機能，功能。4. 〈美國〉機構。5. 〈pl. 〉 活動范圍。
  1. 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。
  2. 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。
  3. The effect of promoter on hds and hdn activity of tungsten phosphide catalyst

    鈷對磷化鎢催化劑加氫精製性能的影響
  4. This process relies on a catalyst of high selectivity and weak activity.

    這過程所靠的是一種高選擇性和低活性的催化劑。
  5. Mechanical or physical failure of the catalyst is the cause of process shutdowns and catalyst changeouts more often than activity loss.

    催化劑的機械性能或物理性能損壞是生產停車和催化劑更換的主要原因，往往比失活所造成的還要多。
  6. The main work and the conclusion of the article are : ( 1 ) give a suggestion on the reaction mechanism and the principle of catalyst selection. ( 2 ) by comparison of the catalyst activity of solid superacid with the zinc oxide, stannous chlorde and tin ( ii ) octate in the synthesis reaction. we find that although its activity is lower than tin ( ii ) octate, obviously higher than that of traditional zinc oxide and stannous chlorde. from the point of preparation cost, we select solid superacid as catalyst

    但從催化劑的制備成本和工藝的角度選擇，固體超強酸具有明顯的優勢； （ 3 ）制備一系列單組元和雙組元硫酸促進氧化物固體超強酸，並用於丙交酯的合成反應，篩選具有最佳活性的固體超強酸催化劑： （ 4 ）使用so2 - 4 / zno - sno2 （ 2 ： 1 ） la3 +固體超強酸作催化劑，反應脫水時間1
  7. Catalytic activity of supported aqueous - phase catalyst in heck reaction

    反應中的催化性能
  8. By providing long - term, patient growth capital and facilitating critically needed technology and management skills development, these funds act as a catalyst for private sector economic activity in the developing countries

    我們為發展中國家提供長期的耐心的發展資金和必要的技術和管理技能。
  9. Development and industrial application of pe high activity catalyst

    1的開發及工業應用
  10. Ht hydroconversion catalyst has a high activity in low temperature. high ability to saturate the olefin and canvert the organic sulfide into inorganic one in gas and liquid of hydrocarbon of the natural gas. oil and coked gas in synthetic ammonia, methanol gas and hydrogen making industries

    Ht加氫轉化催化劑具有優異的加氫轉化和烯烴飽和活性，具低溫活性較好，可用於制氫、合成氨和甲醇等過程的加氫轉化反應器內，將烴類原料中的有機硫和烯烴進行加氫轉化和加氫飽和，以達到凈化原料的要求。
  11. In order to maintain the catalyst at a high level of activity the feedstock must be carefully purified.

    為保持催化劑的高度靈活性，必須對進料精心加以凈化。
  12. Carbon nanotubes ( cnt ) are new promising materials of catalyst supports for pemfcs. previous studies reveal that cnts supported catalysts show enhanced catalytic activity towards oxygen reduction reaction ( orr ) and methanol oxidation

    碳納米管（ cnt ）作為載體的電催化劑在氧還原和甲醇氧化等pemfc電極反應方面表現出良好的催化活性。
  13. The catalyst has good activity in low temperature and anti - sulfate performance, temperature tolerance and anti - pulverization performance, the results showed that it can keep tile sulfur recovery unit at high total sulfur recovery rate and long running period

    運行數據表明，該催化劑具有良好的低溫活性、抗硫酸鹽化性能、耐溫變及抗粉化性能，使硫磺回收裝置保持較高的總硫轉化率，並確保其達到長周期穩定運行。
  14. Mechanical test results must be evaluated in conjunction with catalyst activity, selectivity, and stability data.

    必須將機械測試結果和催化劑活性、選擇性和穩定性數據聯系起來進行綜合評價。
  15. The results showed that hydrothermal cracking occurred while injecting steam, and the catalyst had catalytic activity for hydrothermal cracking of heavy oil at higher temperature ; viscosity and average molecular weight of heavy oil was thus lowered

    實驗結果表明，在注入蒸汽的條件下，遼河稠油可以發生水熱裂解反應，高溫下催化劑對水熱裂解反應具有催化作用。
  16. Effects of temperature on activity, isostacticity and hydrogen response of catalyst in propylene polymerization are studied and the performances of catalyst with different temperature are compared

    摘要研究了在不同溫度下進行丙烯聚合時，催化劑的活性、氫調敏感性及聚合物等規度的變化情況。
  17. The catalytic activity of ( hmbp ) 2ticl2was lower than - diketonate titanium catalysts. the catalytic activity of dinuclear - diketonate titanium catalysts was comparative to mononuclear ones. however, the dinuclear - diketonate titanium catalyst showed the synergism effect, for example, the lower catalyst concentration and the molar ratio of al to ti, the activity reached the maximum value at 80, the melting temperature of polymer was enhanced

    2 -羥基苯酮鈦[ （ hmbp ） _ 2ticl _ 2 ]的催化活性低於-二酮鈦類催化劑；雙核催化劑在催化活性方面與對應單核催化劑相差不多，但在聚合規律上表現出與單核催化劑不同的雙核協同作用，如聚合所需的催化劑濃度、助催化劑甲基鋁氧烷mao量降低，活性在80時出現極值，熔點提高等，而且雙核催化劑是單活性中心催化劑。
  18. The effects of support on the activity of the supported catalyst were also investigated

    表明用新方法制備的催化劑可明顯改善催化活性。
  19. In the experiment of catalyst preparation, the catalytic activity of mno2 / c which was prepared with mn ( no3 ) 2 solution and active carbon by the means of thermal decomposition reached the highest among three kinds of catalysts, and the performance of mno2 / c was enhanced by acidification. moreover, the results showed that the catalytic activity of mno2 was also affected by different mode of catalyst and active carbon dispersed

    催化劑的制備實驗表明，採用硝酸錳溶液和活性炭共同熱分解得到的mno _ 2 / c ，具有最高的催化活性，對催化劑進行酸化處理能提高催化劑的活性，而且催化劑和活性炭的分散方式不同對其性能的影響較大。
  20. Surface properties and hydrodenitrogenation activity of niwnx - al2o3 catalyst

    3催化劑的表面性質及加氫脫氮性能
分享友人
分享到 Line

分享到臉書