The electropolymerization of Cobalt tetraaminophthalocyanine on gold electrode has been studied by cyclic voltammetry and electrochemical quartz crystal microbalance.

采用循環(huán)伏安法和石英晶體微天平技術(shù)對(duì)四氨基鈷酞菁在金電極上的聚合成膜過程進(jìn)行了研究，考察了掃描速度国产在线视频你懂、溶劑国产一级中国美国毛片、支持電解質(zhì)及單體濃度對(duì)其成膜過程的影響，同時(shí)初步探討了聚合膜分別在非水溶液和水溶液中的氧化還原行為及穩(wěn)定性狼友免费高清无码视频，其中借助EQCM重點(diǎn)討論了在這些過程中溶液中離子在膜中傳輸?shù)臋C(jī)理国语对白操。

The effect of aqueous ethanol (50% v/v) on the activity of purified mushroom polyphenol oxidase has been found to be as follows:(1)The oxidation of catechol or pyrogallol is greatly stimulated,an increase in the rate of oxygen uptake of over 100% having been invariably observed with catechol as the substrate,whereas the oxidation of other substituted o-dihydric phenols is inhibited in 50% ethanol.

三無論有無抗壞血酸的存在性爱在线视频无码，50%乙醇對(duì)多酚氧化酶活力的提高程度是一樣的，在有一定量的抗壞血酸的存在下舔穴在线，多酚氧化酶對(duì)兒茶酚的 Michaelis 常數(shù)(25℃)在水溶液及50%乙醇溶液中各為0.072×10~(-3)M 及0.49×10~(-3)M91精品免费大秀。

The dispersion mechanism of the dispersants was analyzed by testing the Zeta potential of the dispersion phase in the dispersion medium. It was shown that Ⅰ and Ⅱ raised obviously the absolute values of surface Zeta potential of titania particles, and NK-1 formed good solvate layers of the particles so that the nano-titania particles were stably dispersed in the water solns.

通過測(cè)定分散相在分散遞質(zhì)中的Zeta電位，分析了分散劑的分散機(jī)理精品911国产自产，說明六偏磷酸鈉和硅酸鈉可顯著提高整理液中二氧化鈦顆粒表面Zeta電位的絕對(duì)值无码高潮喷吹在线播放亚洲，NK-1在納米二氧化鈦顆粒表面形成良好的溶劑化層，使納米二氧化鈦顆粒在水溶液中獲得優(yōu)良的分散穩(wěn)定性日本一区二区人妻在线视频。

At present,the rate laws and reaction mechanisms of pyrite oxidation,pyrite and chalcopyrite formation,uraninite and magnetite dissolution in aqueous solutions are mainly studied,and it is discovered that (1)oxidation rate of pyrite controlled by surface reaction assume fractional dependence on Fe3+ and O2 molalities in acid solutions;(2)Pyrite cannot nucleate directly from solutions below 300 ℃,it can only form initially through sulfidation of a FeS precursor. The rate equation of reaction between FeS and H2S to form pyrite is of the second order;(3)Chalcopyrite is formed by reactions of pyrrhotite or pyrite with Cu2+,the former proceeds via a series of mediate metastable phases of Cu-Fe sulfide,whereas the rate equation of the latter is apparently of the first order which is controlled by surface reaction;(4)The nonlinear behavior of magnetite dissolution at acid pH can be represented by a shrinking core model coupling with surface reaction and diffusion transport.

目前主要研究了水溶液中黃鐵礦氧化www,av免费、黃鐵礦和黃銅礦形成、晶質(zhì)鈾礦和磁鐵礦溶解的速率定律和反應(yīng)機(jī)理欧美激情1级片，發(fā)現(xiàn)：(1)酸性溶液中黃鐵礦的氧化速率對(duì)Fe3+和O2濃度呈分?jǐn)?shù)依賴并受表面反應(yīng)的控制免费看一级人妻片；(2)低于300 ℃時(shí)黃鐵礦不能從溶液中直接成核，而需初始地通過FeS先驅(qū)物的硫化生成91自拍偷拍首页，F(xiàn)eS與H2S反應(yīng)形成黃鐵礦的速率方程為二級(jí)精品偷拍欧美日韩视频网站免费；(3)磁黃鐵礦或黃鐵礦與Cu2+反應(yīng)均可形成黃銅礦，前者經(jīng)歷了一系列準(zhǔn)穩(wěn)的Cu-Fe硫化物的中間物小黄片18禁，后者的速率方程為表觀一級(jí)并受表面反應(yīng)的控制在线a毛片免费视频观看APP；(4)酸性pH時(shí)磁鐵礦的非線性溶解行為可采用表面反應(yīng)擴(kuò)散輸運(yùn)耦合的收縮核模型來描述。

The results show that the TiO2 porous films can be obtained by anode oxidation using 10% H2SO4, voltage of 120V on the surface of Ti-6Al-4V alloy, and the aperture size is about 100-200nm. The acerate CaHPO4 with size of 200-400nm can be gained by the electrochemical deposition. Ultimately, the acerate CaHPO4 changed to the sheet Ca10(PO4)62 after being treated with 0.1mol/L NaOH in autoclave at 200℃ for 10 hours .

結(jié)果表明：鈦合金（Ti-6Al-4V）板經(jīng)以10％的硫酸為電解液和電壓為120V時(shí)陽極氧化午夜久久三级片，產(chǎn)生孔徑大約為100-200nm的多孔氧化膜色色www永久免费视频，再經(jīng)電化學(xué)沉積，得到尺寸大小約200-400nm針狀的CaHP04最新欧美性爱COm485在线视频，最后經(jīng)盛有濃度為0.1mol/LNaOH 水溶液欧美黄色网站免费在线看、溫度為200℃的高壓釜中水熱合成10h，針狀的CaHP04 轉(zhuǎn)變?yōu)槠瑺畹腃a10(PO4)62人人草人人草.COM。

On the condition of using fatty acids of rapeseed oil as raw material,85% acetic acid as solvent, pelargonic acid as recrystalization solvent, this paper prepared azelaic acid and brassylic acid by ozonolysis ,oxidation decomposition ,recrystallization etc.

以蓖麻油酸為原料欧美日韩综合精品一区二区、85%醋酸水溶液為溶劑，經(jīng)臭氧化免费刺激无码高潮H视频、氧化分解免费观看黄网、沸水萃取等過程制備壬二酸的最佳反應(yīng)條件為：m：m(85%醋酸)=1：4，臭氧化溫度20-25℃韩国精品黄色网站；氧化分解溫度90-95℃欧美亚洲国产aaaaaaaa，催化劑醋酸錳/醋酸銅用量為原料蓖麻油酸質(zhì)量的0.09%，氧化分解4h伊人网片毛，壬二酸的收率為62.5%中文字幕一区二区在线播放。

Factors were reviewed, and optimum conditions was obtained,these experiments provide effective data for industrial manufacture.On the condition of using fatty acids of cottonseed oil as raw material,85% acetic acid as solvent,this paper prepared azelaic acid and pelargonic acid by ozonolysis, oxidation decomposition , extracted by boiling water,active carbon absorpting etc.

以棉油酸為原料、85%醋酸水溶液為溶劑，經(jīng)臭氧化欧美国产综合、氧化分解国产精品免费-区二区三区、沸水萃取、活性炭吸附脫色等過程制備壬二酸的最佳反應(yīng)條件為：m：m(85%醋酸)=1：4美女隐私都位无遮挡的网站，臭氧化溫度20-25℃亚洲天堂AV网站；氧化分解溫度90-95℃，催化劑醋酸錳/醋酸銅用量為原料棉油酸質(zhì)量的0.15%国产啊V在线视频免费观看，氧化分解4h操逼欧美黄色，壬二酸收率為57.4%，壬酸收率為51.6%欧美性生活视频高清在线。

Three methods for trimellitic anhydride production including MGC,nitric aid oxidation,and liquid phase oxidation by air were compared.

比較了生產(chǎn)偏苯三酸酐的3種方法：芳香醛水溶液空氣氧化法91系列在线观看免费、硝酸氧化法和液相空氣氧化法。

In the last part three new types of ion-supported TEMPO catalysts were synthesized and could be used to catalyse selective oxidation of alcohols in water.

三欧美页、合成了三個(gè)離子支持的TEMPO 催化劑美女脱了内裤打开腿让人桶，將其與離子支持的二乙酸碘苯結(jié)合催化水溶液中醇的選擇性氧化，提供了一個(gè)在水溶液中催化劑和氧化劑均可回收使用的綠色體系久久国产的精品。

The said cellulose solvent may be used in dissolving natural cellulose and regenerated cellulose via mixing with cellulose, freezing and defreezing; or, it is first cooled to -10 deg.c to 0 deg.c and then maintained in -8 deg.c to 0 deg.c to dissolve natural cellulose and regenerated cellulose directly.

這種氫氧化鋰和硫脲的混合水溶液可以通過與纖維素混合后冷凍然后解凍的方法溶解天然纖維素和再生纖維素欧美黄片亚州黄片；也可以預(yù)先將該混合水溶液冷卻至-10℃～0℃日韩美欧自拍视频播放在线观看免费，然后維持在-8℃～0℃左右直接溶解天然纖維素和再生纖維素黃色A片三級三級三級在线。