活性碳表面積 的英文怎麼說
中文拼音 [huóxìngtànbiǎomiànjī]
活性碳表面積
英文
activated carbon surface area- 活 : Ⅰ動詞1 (生存; 有生命) live 2 [書面語](救活) save (the life of a person):活人無算 (of a goo...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 碳 : 名詞[化學] (非金屬元素) carbon (c)
- 表 : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 積 : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
- 活性 : [化學] activity; active; activated活性肥料 active fertilizer; 活性酵母 active dry yeast; 活性粘土...
- 表面積 : superficial area
- 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
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By study we find the activeness of carbon nanotube may be enhanced after oxidization, sensitization and activation. then we consider temperature, ph and composition of plating bath, in order to make the speed of coating as possible as slow
通過研究,發現經過研磨、氧化、敏化、活化后,可以提高碳納米管表面的活性,通過改進鍍液成分, ph值以及溫度等,使沉積的速度盡可能的低。Through the comparison between freeze - drying and heat - drying, the agglomeration and the desorption of the precursor on carbon support can be alleviated with freeze - drying method. the effects on the electrocatalysts by pretreatments of carbon support, dispersant and precursor are studied. the result shows that pretreatment of the carbon support by kmno _ 4 can add oxygen - containing functional groups on the surface of carbon, which can reduce the hydrophobicity of the carbon support, and then make it much easier for carbon to dissolve in water to form suspension ; isopropyl alcohol can make the carbon support in high dispersion in the precursor solution, which can make the precursor absorbed on the surface of the carbon
採用高錳酸鉀氧化預處理的碳載體比表面積較大,表面含氧官能團數量較多,親水性較好,有利於前軀體在碳載體表面的吸附;選取異丙醇作為預凍液中的分散劑,有利於碳載體在前軀體溶液中的分散,容易實現前軀體離子在碳載體表面的穩定吸附和分散;使用酸性pt ( no _ 2 ) _ 2 ( nh _ 3 ) _ 2作為前軀體,可以使前軀體離子和碳載體表面的酸性含氧官能團發生離子交換反應,使得前軀體離子吸附量增大,分散更加均勻,以上三種因素的選取都可以得到催化活性更高的pt / c催化劑。An amperometric glucose biosensor was developed based on immobilization of glucose oxidase ( god ) on the electrochemically polymerized polytyramine ( pty ) film and the overoxidised polypyrrole ( oppy ) film on carbon paste electrode ( cpe )
鍍鉑碳糊電極的鉑黑沉積層的微孔結構使電極具有較大的有效表面積,增加了固定的酶量與對h2o2的催化活性,使電極的靈敏度提高。3. when table sugar was used as starting materials, it was used and pyrolyzed directly or was first mined with sulphuric acid after surface area of those materials is not larger than that of pas capacity is small in their electric double - layer capacitor, specific surface area has great effect on capacity, the larger specific surface area is, the higher capacity is, . but bulk density will decrease with increase of specific surface area
當以食糖為熱裂解碳的原料時,採用直接焦化和酸洗焦化兩種方式。所制備的樣品比表面積沒有聚並苯材料的大,在以30 h _ 2so _ 4為電解質的雙電層電容器中,容量相對較小。電極活性物質的比表面積對雙電層電容器的容量有很大的影響。The properties of cn thin films such as their morphology, component, crystal structure and the bonding structure and the relation between those properties and the gas - phase reaction parameters were discussed, showing that the deposition of p - c3n4 thin film is the compete result of various reaction processes in the dynamics balance conditions ; the process of cn films depo sition is diagnosed in situ through the optical emission spectra technique, the effects of experimental parameters on the concentration of the precursors and the gas - phase reactions in the plasma have been obtained ; the main reaction precursors for film deposition identified ; the relation between the characteristics of cn thin films and the reaction process in the plasma is analyzed. the cn thin films deposition under different substrate temperatures in high pressure pe - pld shows that the si atom of the substrate has participated the cn films growth process, based on this the growth mode of cn thin films on the si substrate is proposed. the further experiment of cn thin films deposition on si substrate scratched by diamond as well as covered with fe catalyzer has been attempted, which indicates that changing the dynamics conditions of the surface reaction can alter the growth characteristic of the cn thin films and can enhance obviously the films growth rate
採用pld技術進行了碳氮化合物薄膜沉積,得到了含氮量為21at的cn薄膜;研究了襯底溫度和反應氣體壓強對薄膜結構特性的影響,給出了cn薄膜中n含量較小、 sp ~ 3鍵合結構成分較少和薄膜中僅含有局域cn晶體的原因;引入脈沖輝光放電等離子體增強pld的氣相反應,給出了提高薄膜晶態sp ~ 3鍵合結構成分和薄膜的含n量可行性途徑;應用pe - cvd技術以ch _ 4 + n _ 2為反應氣體並引入輔助氣體h _ 2 ,得到了含n量為56at的晶態cn薄膜;探討了cn薄膜形貌、成分、晶體結構、價鍵狀態等特性及其與氣體壓強和放電電流的關系,證明了- c _ 3n _ 4薄膜沉積為滿足動力學平衡條件的各種反應過程的競爭結果;採用光學發射譜技術對cn薄膜生長過程進行了實時診斷,得到了實驗參量對等離子體中活性粒子相對濃度和氣相反應過程的影響規律,給出了cn薄膜沉積的主要反應前驅物,揭示了cn薄膜特性和等離子體內反應過程之間的聯系;採用高氣壓pe - pld技術研究了不同襯底溫度條件下cn化合物薄膜的結構特性,揭示了si原子對薄膜生長過程的影響,給出了si基表面碳氮薄膜的生長模式;在金剛石研磨和催化劑fe處理的si襯底上進行cn薄膜沉積,證明了通過控制材料表面動力學條件可以改變碳氮薄膜結構特性,並可顯著提高晶態碳氮材料的生長速率。With the rapid progress of materials science, petroleum coke shows unique value in producing advanced materials, including high surface area activated carbon, nanometer sized carbide, advanced composite materials, electrorheological fluids, and electrodes for lithium ion batteries
在快速發展的材料科學中,石油焦作為碳源材料顯示出獨特的作用,可以用來制備包括高比表面積活性炭、納米碳化物材料、先進復合材料、電流變材料和鋰離子電池負極材料等在內的新材料。The combustion conditions in a circulating fluidized bed ( cfb ) boiler are much different from a pulverized coal firing ( pf ) boiler. however, this dissertation has confirmed that coal char in cfb boiler will also experience reactivity loss and ordering of turbostratic carbon structure, which have been reported by many researchers whose work were mainly restricted to pf conditions
本文通過獲得在cfb燃燒條件下熱解和燃燒過程中的焦碳,對其反應性、亂層碳結構、礦物質催化作用和比表面積等進行了系統研究,指出cfb鍋爐和煤粉爐同樣存在焦碳亂層碳結構有序化和焦碳反應性下降(失活)現象,並全面分析了焦碳失活的機理。At lower growth temperature, the lower extracting rate of carbon atoms from catalyst particles due to the lower activity of the catalysts resulted in more defects formed in carbon nanotubes. moreover, the lower transportation rate of carbon atoms in catalyst particles also made lots of carbon atoms deposited on the surfaces of grown carbon nanotubes, or on carbon wrapped catalyst particles, even to form amorphous carbon layers
在較低溫度時,由於催化劑的活性較低,導致石墨面在生長過程中引入的缺陷較多;另一方面,碳原子在催化劑顆粒內遷移速率較低,使得多餘的游離態碳原子(或原子團)可能在納米碳管表面以非晶形式沉積,或者包覆催化劑使其「中毒」失去催化活性,或者直接形成非晶的碳納米顆粒。分享友人