電環化反應 的英文怎麼說

中文拼音 [diànhuánhuàfǎnyīng]
電環化反應 英文
electrocyclic reaction
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 反 : Ⅰ名詞1 （方向相背） reverse side 2 （造反） rebellion 3 （指反革命、反動派） counterrevolutionari...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  1. 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。
  2. Like the amino group, the phenolic group powerfully activates aromatic rings toward electrophilie substitution, and in essentially the same way.

    對于親電取代反應，酚基基本上以同氨基一樣的方式使芳環強烈活化。
  3. In this paper, high concentration vanadium electrolyte has been prepared by electrolysis, graphite and graphite felt electrode also have been made, moreover, the electeodes have been activated, and based it, a lab - level vanadium battery has been manufactured. cyclic voltammetry, current step and invariable current charge / discharge method have been used to study the reactive mechanism of electrolysis, of vanadium electrode reaction and of electrode activation, also to investigate maiden charge process and electricity performance of vanadium battery. the influence of electrode activation and trace stibium ion, indium ion added into vanadium electrolyte has been discussed

    利用循環伏安法、恆電流階躍法、恆電流充放電循環等電化學方法，探討了電解法制備釩液流電解質的反應機理，考察了釩的電極反應、電極表面活化處理對釩的電極反應的影響，結合電極反應分析了活化的機理；還考察了釩電池初次充電活化過程及恆流充/放電循環的電性能；並且考察了添加銻離子、銦離子對釩電池電性能特別是析氫行為的影響。
  4. Perovskite - type complex oxides of la1 - xsrxga1 - ymgyo3 compositions are characteristic of superior intermediate temperature oxide - ion conductivity and chemical stability, which are expected to be used in solid oxide fuel cells, sensors, electrocatalysis, membrane separators and membrane reactors. they have highly promising prospects in energy, metallurgy, chemical engineering and environmental protection, etc. in this dissertation, improved embeded sintering method has been employed to prepare la0. 8sr0. 2ga1 - ymgyo3 ( lsgm ) electrolyte, and the contributing factors to preparation, microstructure characteristics, conduction properties and thermology properties of lsgm electrolyte have been investigated

    鈣鈦礦結構la _ （ 1 - x ） sr _ xga _ （ 1 - y ） mg _ yo _ 3復合氧化物具有優異的中溫離子導電特性和化學穩定性，作為固體電解質可用於固體氧化物燃料電池、傳感器、電催化、膜分離和膜反應器等，在能源、冶金、化工、環保等領域具有廣泛的應用前景。
  5. The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered

    氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。
  6. Syntheses of ? ? diimine and 2 - aminopyridine transiting metal complexes bearing 2, 6 - unsym - substituents on the aryl, and investigation on the steric and electronic effects of the unsym - subatituents on the catalytic property

    以2 ， 6位不同基團取代的苯胺與相應的二酮反應合成系列的? ?二亞胺和吡啶胺基過渡金屬配合物。主要考察芳環2 ， 6位基團立體位阻對催化性能的影響，同時也考慮基團的推拉電子效應。
  7. By using sterically hindered, electron - rich alkylphosphines and n - heterocyclic carbenes ( nhc ), this process has encompassed a broad range of substrates including ketones, aldehydes, esters, amides, malonates, nitrocompounds, nitriles and sulfones

    隨著大位阻、富電子烷基膦和氮雜環卡賓（ nhc ）為配體的催化體系的出現，該類反應的底物已從酮擴展到醛、酯、酰胺以及含酸性氫的化合物如丙二酸酯、硝基化合物、腈、碸等。
  8. A. the preparation of sliding ink for plastic printing. b., widely used in ht e preparation of double components epoxy paint and epoxy adhesive, the curing matter own fine mechanical and electrochemical property ; it is also applied in the manufacture of low temp

    B二聚酸與多元胺反應生成具有活性胺基的聚酰胺，廣泛應用於製造雙組份環氧油漆及環氧粘結劑，固化物具有良好的機械電化學等性能。
  9. The equipment made by us of titanium, stainless steel, aluminum or plastics, mainly include column condenser ( heat exchanger ) ; coil hear exchanger ; membrane evaporator ; constant boil tower ; reactor ; pressure filter, storage tank ; blower, centrifuge and ta series corrosion - resist titanium pump, as well as variety of metal constructional member. they are widely applied in the industries of petrochmical engineering, smelt, pharmacy, chlorinate alkali, salt preparation, as well as electric chemical plant

    我廠生產鈦材，不銹鋼等各種材質的化工設備，主要有風機，離心機，鈦泵，鈦閥，列管式冷凝器（換熱器） ；盤管式換熱器；薄膜蒸發器；塔器；反應器；貯存容器；面向石油化工，冶煉，制藥，氯堿，制鹽食品，造紙，環保等化學工業領域及電化行業。
  10. A significant suppression of phase transitions and lattice changes during cycling is occurred for ti - doped materials, and a decrease of interface reaction activity between the cathode and electrolyte is also demonstrated for ti - doped cathodes. as a result, the capacity losses, which are originated from structural changes and interface reactions during cycling, decrease and thereby cycling life increases for ti - doped materials

    摻欽后，電極材料的離子分佈形式發生變化，引起材料結構中的化學鍵產生變化，電極材料充放電過程中的結構相變得到有效抑制，結構變化相應減小，電極材料在高電位下的界面反應活性也減弱，從而減小了由結構變化和界面反應引起的容量損失，改善了電極材料的充放電循環性能。
  11. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。
  12. The obtained qcm sensor has sensitive response to the liquid density and can be expected as a density meter. composite films of p - cyclodextrin ( p - cd ) bound to the titanium dioxide nanoparticles were tightly coated on the surface of qcm

    研究發現在乾燥失水的過程中，滴加到tio2多孔膜表面的-環糊精分子與納米二氧化鈦發生縮水反應，形成網狀物質，牢固地結合在壓電晶體表面。
  13. The main products includes various steam and electric heating reaction vessel, conduction oil, outer coil reaction vessel, polyester and resin completed equipments, vacuum reducing concentration tank, methanol and ethanol recovery tower, various corrugated stuffing, high effective membrane evaporator, new - type centrifugal drag membrane evaporator, vacuum rake dryer, condensing drum cut - off machine, shell - and - tube condenser,

    本廠主要產品有各類蒸氣電加熱反應鍋，導熱油外盤管反應鍋，聚脂樹脂全套設備，真空減壓濃縮罐，甲醇乙醇回收塔，各類波紋填料，高效薄膜蒸發器，新型離心刮板式薄膜蒸發器，真空耙式乾燥機，冷凝滾筒切片機，列管式冷凝器，螺旋板式換熱器，外循環蒸發器，鋁制槽車貯罐，乳化設備，高速剪切分散機，種子罐，發酵罐，多功能提取罐，並承接各類非標設備。
  14. For example, frp reinforced concrete is used to support or surround magnetic resonance imaging ( mri ) medical equipment, and frp is also used for the constructions of some seawalls, industrial roof decks, base pads for electrical and reactor equipment, anchor in rock and ground engineering and concrete floor slabs in aggressive chemical environments in order to promote the wide usage of frp and frp reinforced concrete structures, financed cooperatively by nationa l natural science foundation ( item : the research on mechanical performance of frp reinforced concrete beam reinforced ; number : 59978046 ) and henan illustrious youth science foundation, connected with the analysis methods of modern steel reinforced concrete structure, the thesis further studies the flexural performance of frp reinforced concrete beam through the systematic study on experimental data got from this kind of beams, systematically establishes the theoretical calculating system of the flexural performance of frp reinforced concrete beam in cooperation with the up - to - date analytical methods for reinforced concrete, which suits the properties of frp

    例如，纖維增強塑料筋應用於支撐和圍繞磁共振成像醫療設備的混凝土中及海堤、工業頂棚、電設備、反應設備的基座、巖土工程中的錨桿、侵蝕性環境的混凝土結構等海洋工程、橋梁工程、路面工程、巖土工程、醫療及化工工程的建設。為了推動纖維增強塑料筋及其混凝土結構在工程中的廣泛應用，本文在國家自然科學基金（項目名稱：纖維增強塑料筋混凝土梁力學性能的研究；編號： 59978046 ）和河南省傑出青年基金的資助下，通過對纖維增強塑料筋混凝土梁正截面受彎性能試驗數據的系統分析，結合現代鋼筋混凝土結構學的分析方法，對纖維增強塑料筋混凝土梁正截面受彎性能進行了深入的研究，較系統的建立了適合於纖維增強塑料筋特點的纖維增強塑料筋混凝土梁正截面受彎性能的理論計算體系。
  15. The fitness of four negative electrode materials such as al, fe, zn, cd, and of six membranes materials : microfiber glass mat separator, polyethylene, polypropylene, polyvinyl chloride, vinylon, soapnated cellulose acetate, and of four current collects : carbon fiber ; nickel foam ; nickel foam sthongthened by iron wire net, punched silver grid in the super - iron alkaline batteries was comparatively studied. the influence of two storaged method ( with and without electrolyte ) and two impurities ( zno, fe ( oh ) 3 ) to the experiment cell ' s self - discharge nature was also comparatively studied. at last, the nature of discharge. structure and electrochemistry of experimental cell with k2feo4 as cathode active material prepared by three different methods : high temperature reaction, hypochlorite oxidizing and electrolysis, was comparative ly studied. we can conclude : i ) the open - circuit potential and the flat of work potential and the percent of capacity of k2feo4 till 1. 0v during the discharge at constant load of experimental cells decreased by the order of al / k2feo4, zn / k2feo4, cd / k2feo4, fe / k2feo4. as for the nature of charge - discharge cycle, cd / k2feo4 fe / k2feo4 zn / k2feo4. in water solute electrolyte, although al / k2feo4 can n ' t be used as storage battery, it have great potential as primary cell or storage cell from the aspect of its discharge capacity. discharge power

    採用組裝實驗電池、 x -射線衍射（ xrd ）和循環伏安（ cv ）的方法，從實驗電池的放電特性、充放電循環特性、自放電特性，不同高鐵酸鹽的結構特性和電化學特性幾個方面，對4種金屬負極材料（ al 、 fe 、 zn 、 cd ） 、 6種隔膜材料（復合玻璃纖維、幅射接枝聚乙烯、改性聚丙烯、聚氯乙烯、維尼綸無紡布、皂化再生纖維素） 、 4種集流體材料（泡沫鎳、以鐵網為加強層的泡沫鎳、切拉銀網、炭纖維編織網）在堿性高鐵電池中的適用性進行了比較研究；對2種雜質組分（ zno 、 fe （ oh ） _ 3 ）和2類不同貯存方式（干、濕）對實驗電池自放電特性的影響進行了比較研究；對3種方法（高溫固相反應、次氯酸鹽氧化、直流電解）所制k _ 2feo _ 4的實驗電池的放電特性、結構特性和電化學性能進行了比較研究。
  16. But the comprehensive properties were improved remarkably. with the addition of carbon nanotubes, the polarization of charging process decreased, the plateau of discharge became flatter and the migration of potential of peaks value of cyclic voltemmograms reduced. for the other hand, the exchange current increased, ohm resistance and electrochemical reaction resistance of the electrodes decreased, the diffusion resistance of hydrogen and the resistance of adsorption decreased, too

    摻入碳納米管對儲氫合金電極的容量影響較小，但其電化學性能卻有較大的改善，主要體現在：充電的極化減小，放電平臺更加平穩、循環伏安曲線的峰值電位隨掃描速度增大的遷移量減小，交換電流密度增大，電極的歐姆電阻、電化學反應、擴散電阻和吸附電阻均減小。
  17. After finished the cyclic voltammetry experiments, the results showed that iron steel grid can act as good current collector in the aqueous electrolyte. while the scan rate was fall in the range of 0. 5 - 4. 0mv / s, electrochemical reaction of the lithium insertion / extraction in the solid phase was kinetically limited by the diffusion of lithium ions. after 40 cycles in aqueous electrolyte the discharge capacities of sample of s13 reached 77mah / g, and showed good cycle performance

    在水溶液中不銹鋼網可以作為電極的集流體，在0 . 5 - 4 . 0mv / s的掃描速度范圍內，鋰離子在尖晶石鋰錳氧化物的嵌入和脫嵌的電化學反應在動力學上是受鋰離子在固相中的擴散所控制，充放電實驗顯示樣品s13在水電解液中經過40個循環后達到77mah / g的放電容量，具有很好的循環穩定性。
  18. The electrochemical behaviors of zn - in alloy were studied as cathode electrode by means of polarization curves, cv curves, e - logic curves and kinetic parameters of hydrogen evolution. these results were compared with other kinds of electrodes

    用電化學方法測定了鋅銦合金電極的陰極極化曲線，循環伏安曲線、 tafel曲線和電化學穩定曲線，計算了合金電極的析氫反應動力學參數，並與其他電極進行了比較分析。
  19. Due to their high oxidation, multiple electron transfer, and high intrinsic energy, we refer to the cells containing fe ( vi ) compounds as " super - iron " batteries with more energy capacity compared to conventional alkaline batteries. the three charge reduction of fe ( vi ) represents a high energy and capacity source of cathodes, and the products ( ferric oxide ) have been considered as an environmentally benign substance

    如果fe （ ）化合物作為電池的陰極材料時，其氧化反應為3電子過程，且反應產物為fe _ 2o _ 3 （鐵銹） ，與一般傳統堿性電池相比，它是一種高能，而且放電產物對環境無污染的綠色電池，目前，它的研究已成為電池研究領域的一個熱點。
  20. In chapter three, the mechanism responsible for scanning probe field - induced oxidation in ambient air is attributed to an electrochemical process, i. e., anodic oxidation or anodization, after the analyses is given of a surface of a sample exposed to air. the effects of biases, tip speeds on morphology of field - induced oxidation, are introduced and deduced in the form of kinetics formula of oxidation growth

    第三章首先通過分析大氣環境下掃描探針場致氧化加工的基本特性，得出掃描探針場致氧化的加工機理為電化學陽極氧化反應；引進大氣狀態下場致氧化的動力學方程，推導出偏置電壓與場致氧化物的幾何形態兩者之間的關系、掃描探針移動速度與場致氧化物的幾何形態兩者之間的關系。
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