鎢催化劑 的英文怎麼說
中文拼音 [wūcuīhuàjì]
鎢催化劑
英文
tungsten catalyst-
Synthesis of butyraldehyde glycol acetal with h4siw12o40 pan as catalyst
硅鎢酸摻雜聚苯胺催化劑催化合成丁醛乙二醇縮醛Using the phosphotungstic acid immobilized on active carbon as catalyst, the iso - amyl gallate was synthesized directly by esterifying isoamyl alcohol and gallic acid
摘要以活性炭固載磷鎢酸作為催化劑，用沒食子酸與異戊醇直接酯化合成了沒食子酸異戊酯。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。Study of a new catalyst for hydroprocessig tungsten phosphide
一種新型加氫精製磷化鎢催化劑的研究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While if pulse laser ablation is applied, the output of mixed target is obviously more than that of plumbago target. the carbon nanotubes prepared by nano - tungsten catalyzer are very straight without any bent and their diameters are under 10nm. it is worth to pay more attention and need to study further
其中以鎢作為催化劑原料與石墨混合製成固體靶，蒸餾水作為流動相時，得到的納米纖維狀產物直徑不到10nm ，而且形狀筆直，值得關注，目前國內外尚無以鎢作為催化劑成功制備納米一維碳材料的報道，因此該研究具有嶄新而廣闊的研究前景。Hydrodesulfurization of thiophene over different loaded tungsten phosphide catalysts
噻吩在不同負載磷化鎢催化劑上的加氫脫硫Technological practice of producing tungstic acid using waste catalyst containing tungsten
利用含鎢廢催化劑生產鎢酸工藝實踐Industrial experience of producing tungstic acid using waste catalyst containing tungsten
利用含鎢廢催化劑生產鎢酸的工業實踐With phosphato - tungstic acid as catalyst and phosphoric acid as dehydrant, n - phenylmaleimide was prepared from aniline and maleic anhydride by two - step method. the yield was 88. 7 % and the purity was 98. 2 %
以順酐和苯胺為原料，磷鎢酸作催化劑，磷酸作脫水劑，採用兩步法制得n -苯基馬來酰亞胺，得到最佳反應工藝條件，產品收率為88 . 7 % ，純度為98 . 2 % （質量分數） 。Thirty - one crystals of polyoxometalates ( 1d, 2d, 3d ) were prepared by means of middle hydrothermal technique, molecular design and self - assembly, and characterized structurally by single crystal x - ray diffraction. the thermal stability, activity of catalysis and magnetism of some compounds were systematically studied. the continuous appearance of p - v - o, p - mo - o, v - mo - o, v - o system with novel structure enrich polyoxometalate chemistry, the reaction characterization and the synthesis law of molybdates, tungstates and vanadates under hydrothermal conditions were explored
由於p - v - o 、 p - mo - o 、 v - mo - o 、 v - o體系新結構不斷出現，豐富了多金屬氧酸鹽化學，探討水熱條件下釩、鉬、鎢物種的反應特性和生成規律，研究原料的選擇、配比、加料順序、濃度、酸度、反應溫度、反應時間等因素對產物的生成及結構的影響，為新的催化劑、導電材料、磁性材料的研製與開發積累經驗。Catalytic activity of hydrodesulfurization on nitride niw catalysts
鎳鎢系列氮化物催化劑的加氫脫硫催化性能Surface dispersivity of tungsten and hydrodenitrogenation activity of tungsten - based catalysts
鎢基催化劑上鎢的分散性和加氫脫氮性能Etherification of light fcc gasoline over supported tungstophosphoric heteropolyacid catalyst
採用負載型磷鎢酸催化劑的輕汽油醚化Effect of calcination conditions on the properties of a new tungsten phosphide catalyst for hydroprocessing
焙燒條件對新型磷化鎢催化劑加氫活性的影響Synthesis and activity of hydrofining catalyst - tungsten phosphie
加氫精製磷化鎢催化劑的合成與活性Preparation of tungsten phosphide catalyst and its hydrodesulfurization performance
磷化鎢催化劑的制備及加氫脫硫性能Study on hydro - denitrogenation and activation of novel phosphide tungsten catalyst
新型磷化鎢催化劑加氫脫氮及活化性能研究Preparation condition and hydrogenation capacity on the novel tungsten phosphide catalyst
新型磷化鎢催化劑合成條件及加氫性能考察Hydrodesulfurization of dibenzothiophene over supported nickel - promoted tungsten nitride catalysts
二苯並噻吩在不同載體負載的氮化鎳鎢催化劑上的加氫脫硫性能分享友人