還原鎳 的英文怎麼說
中文拼音 [háiyuánniè]
還原鎳
英文
reduced nickel-
An electroless nickel process with sodium hypophosphite as reducing agents in alkaline bath, which is applied on polyurethane foam substrate, was studied in detail in this paper
本文採用聚氨酯海綿為基體材料,以次磷酸鈉為還原劑,在堿性化學鍍鎳溶液中對低磷化學鍍鎳磷合金工藝進行了詳細的研究。Preparation of nickle nanoparticles by chemical reduction method
化學還原法制備金屬鎳納米顆粒Systematically tested, analyzed and sorted out geochemical data of intrusion - related nickel deposits in china, such as analysis of zonal structure of chrome spinels, micro - probe in situ analysis of single minerals incjude olivine and pyroxene by la - icp - ms, in which some of the research is the first time domestically
其中一些研究,如鉻尖晶石環帶的研究、橄欖石、輝石等單礦物的原位la ? icp ? ms分析等,在我國還是首次,為研究我國主要銅鎳硫化物礦床成巖成礦過程中元素的分異和演化提供了定量結果。4. a novel amperometric sensor has been constructed for the determination of h2o2. it was based on catalyzing electroreduction of hydrogen peroxide by metal hexacyanoferrate, which were electrodeposited on gold wire electrodes, under a certain potential
利用循環伏安法,在金電極表面電化學沉積一層鐵氰酸鎳膜( nihcf ) ,在一定電位條件下,它能快速催化還原過氧化氫,其響應電流與過氧化氫的濃度呈線性關系。Abstract : the leaching condition, separating principle and technological characteristics of recovering v, mo and ni from waste catalyst from oil refining are introduced with full hydrometallurgy, oxdation reduction method
文摘:介紹了全濕法冶金「氧化還原」法提取煉油廢催化劑中釩、鉬、鎳的浸出條件、分離原理及其技術特點。The stronger the complexing agent, the more negative the initial potential on which nickel ion discharges
絡合劑對鎳離子的絡合能力越強,鎳陰極還原的起始電位越負。Least sweep voltammetry method was employed to study h2po2 - anodic oxidation and ni2 + cathodic reduction in electroless nickel plating solutions containing different complexing agents
運用線性電位掃描法,研究了含有不同絡合劑的化學鍍鎳溶液中鎳離子陰極還原行為和次磷酸鹽陽極氧化行為。For the cathodic process it is likely that there exists a coupling between ni2 + discharge and hydrogen evolution. hydrogen evolution on working electrode should have masked the nickel ion reduction peak in lsv curve
對于陰極過程,鎳離子放電和氫氣析出過程存在耦合,氫氣的析出可能掩蓋了線性電位掃描曲線上鎳還原的電流峰。In the third chapter of this thesis, the nickel electrodeposition process in leaching solution containing ammonia and chloride was summarized, and the electrochemical behaviour of nickel electrodeposition in ammonia complex bath was investigated by measuring polarization curves. the effects of total nickel, ammonia, ammonium chloride concentrations in the electrolyte as well as its anion species and temperature were studied systematically
在第三章中首先對氨絡合物體系電積金屬鎳的工藝進行了總結,並通過極化曲線測量,對氨絡合物體系中鎳陰極電沉積電化學行為進行了研究,系統探討了溶液中總鎳離子濃度、氨水濃度、氯化銨濃度、陰離子及溫度等工藝條件對鎳陰極還原的影響,而後著重對電積鎳的反應機理進行了研究。The preparing process is as follow : mixing the nickel salt, zirconium salt and stabilizer in the solvent ( distilled water ) to prepare mixing solution according to a certain ratio ; commingling the mixing solution and coordination solution of carboxylic ammonia in accordance with a certain rate to form sol, drying the sol and turning it into gel, pre - sintering the gel to get the zro2 - nio powders and the zro2 - ni nanocrystalline composite powders were gained by reducing the zro2 - nio powders
方法如下:將鎳鹽、鋯鹽、穩定劑和水溶劑按所需成分配成混和溶液,再將混和溶液、外加劑按比例混和形成溶膠,溶膠經乾燥成為凝膠,凝膠經預燒得到ysz - nio氧化物納米粉末,將該氧化物粉術還原得到ysz - ni納米復合粉術。絡合。In this study, the preparing processes of zro2 - ni nanocrystalline composite powder aremixing the nickel salt, zirconium salt and stabilizer, solvent ( distilled water ) together to prepare the mixing solution according to certain ratio ; commingling the mixing solution, coordination solution of carboxylic ammonia, intrusion aid in accordance with certain rate to form sol, drying the sol and turning it into gel, pre - sintering the gel to get the zro2 - nio powder and gaining zro2 - ni nanocrystalline composite powder by reducing the zro2 - nio powder. xrd, x - ray wide - angle diffractometer, bet, sem, tem, hrtem analyses are used to study the zro2 - ni nanocrystalline composite powder and zro2 - ni cermet. the sintering temperature is determined
本研究的zro _ 2 - ni納米復合粉末的制備方法如下:將鎳鹽、鋯鹽、穩定劑和溶劑(水)按所需成分配成混合溶液,再將混合溶液、外加劑和氨羧絡合劑按比例混合形成溶膠,溶膠經乾燥成為凝膠,凝膠經預燒得到zro _ 2 - nio納米粉,將該氧化物粉還原得到zro _ 2 - ni納米復合粉。At the beginning of the reduction, the spherical ni powders precipitated at the tip of the precursor where specific surface energy is higher, then more and more ni powders appeared at the edges and the surface of the precursor ; finally the spherical ultrafine ni powders take the place of the whole precursor
在還原過程中,超細鎳粉首先從凍干前驅體的尖端等比表面能較大的地方析出;隨后前驅體的棱和表面逐漸析出大量的超細鎳粉;最後鎳粉顆粒替代整個前驅體,得到球狀超細鎳粉。X - ray powder diffraction patterns show that the nickel powder is cubic crystallite. the average particle size of the ultrafine nickel powder is 50nm
結果表明,控制溶液ph值在9 10之間,選用水合肼為還原劑可得到高純度的納米鎳粉。Ni / co bimetallic nano - cluters have been prepared from aqueous solution by reducing their corresponding metal salts under suitable conditions
為原料,水合姘為還原劑,通過溶液還原法制備了納米鉆鎳合金。Carbonyl groups readily attach themselves to nickel or cobalt atoms, but not so strongly that they cannot link to other molecules and jump ship to form larger molecules
羰基很容易與鎳或鈷原子結合,可是鍵結並不強,因此它還是可以與其他分子結合,甚至跳船形成更大的分子。Catalytic reduction ; kinetics ; so
催化還原動力學二氧化硫氫硫酸鎳Preparation of ultrafine nickel powders using ultrasonic s pray by chemical reduction in aqueous solution
超聲波噴霧液相還原法制備超細鎳粉In the procedure, carbon nanotubes were oxidized by nitric acid and then neutralized with naoh to create carboxyl surface groups which were used to adsorb ni ( superscript 2 + ) ions, thereafter the adsorbed ni ( superscript 2 + ) ions were chemically reduced into ni nano - particles as a catalytic center for electroless nickel deposition, all these were further confirmed by infrared absorption spectra and electron microscopic observations
碳納米管經硝酸氧化和堿中和后表面生成羧基,利用羧基吸附鎳離子,之後吸附的鎳離子被化學還原為鎳的納米微粒並成為化學鍍鎳的催化活性中心。The electroless plating nickel ' s reaction can take place in the active suthee of metal, the activity of the surface of metal lied on three factors, including the properties of il metal ' s edce, the choice of reducer and the manner of action between reducer and metal ' s sdse
化學鍍反應在活性表面上發生,金屬表面的活性取決于金屬表面的性質、還原劑及還原劑與金屬表面的作用方式三個要素。本文針對目前有關化學鍍鎳機理研究中的一些可能的化學反應步驟提出了自己的看法,對有關實驗現象作出的解釋與實驗現象基本相符。In the fifth chapter of this thesis, the cyclic voltammetry, and galvanostatic reduction and electrochemical impedance spectroscopy techniques were used to investigate the redox process and reaction mechanism of black nickel formed on anode. moreover, the x - ray diffraction technique was used to examine black nickel species
在第五章中,通過循環伏安法、恆電流還原法及電化學阻抗譜技術對黑鎳的形成過程及反應機理進行了初步研究,並通過x射線衍射技術對黑鎳的物相進行了表徵。分享友人