中位－四－邻氨基苯基卟啉合铁的氧化还原性能

合成了中位－四－邻氨基苯基卟啉配合物，并研究它在０．５ｍｏｌ／ＬＨ＿２ＳＯ＿４介质中的氧化还原性能。结果表明利用化学法和电化学法均可将Ｆｅ（Ⅲ）ＴＡＰＰ还原为Ｆｅ（Ⅱ）ＴＡＰＰ，后者在Ｈ＿２ＳＯ＿４介质中具有一定稳定性，可以通过氧的化学氧化或电化学氧化重新转变为Ｆｅ（Ⅲ）ＴＡＰＰ．电化学和光谱电化学实验证明该铁卟啉对氧的电还原具有较好的催化作用，催化过程可由ＥＣ机理加以解释．     

水溶液中羧基酞菁钴（II）／铁（III）低聚物对氧还原的…

用电化学和现场光谱电化学方法对羧基酞菁钴（Ⅱ）和羧基酞菁铁（Ⅱ）和羧基酞菁铁（Ⅲ）低聚物催化氧电还原的研究表明：水溶液中，羧基酞菁钴（Ⅱ）低聚物主要催化氧的二电子还原为Ｈ２Ｏ２的反应，而羧基酞菁铁（Ⅲ）低聚物则是氧四电子还原为Ｈ２Ｏ的活性催化剂。催化反应均属ＥＣ异相催化机理，氧电还原的活性中心分别是吸附在电极表面上配合物分子中Ｃｏ（Ｉ）或Ｆｅ（Ⅱ）态中心离子。     

电化学方法检测非电活性气体二氧化碳的若干问题研究

就非电活性气体ＣＯ２检测所遇到的若干电化学问题，诸如ＣＯ２电的和直接电流法测定，Ｏ２的干扰以及ＣＯ２和Ｏ２气体的同时检测等，进行了系统的研究，先后提出并建立了微电流法，耗尽电解除氧法，调制电位脉冲－电流／库仑法等电化学流量方法，最终实现常温下ＣＯ２和Ｏ２气体的快速电化学方法联合检测，即消除了Ｏ２的干扰，又无需ＣＯ２在电极上直接还原。     

Nb（V）在FLINAK熔盐中的暂态电极过程

采用记时电流法和记时电位法对５价铌Ｎｂ（Ｖ）在ＦＬＩＮＡＫ熔盐中的氧化－还原过程进行了研究。结果表明，Ｎｂ（Ｖ）（Ｋ２ＮｂＦ７）在ＦＬＩＮＡＫ熔盐中的电化学还原经历一个电化学－化学－电化学反应（ＥＣＥ）途径。Ｎｂ（Ｖ）在ＦＬＩＮＡＫ熔盐中的还原反应是单电子和４电子两步电化学反应过程。     

MTPP—CeOx—SiO2催化NOx还原

在密闭循环反应器中，于２９０℃下研究了ＣＯ存在下催化剂ＭＴＰＰ－ＣｅＯｘ－ＳｉＯ２（Ｍ＝Ｃｏ＾２＋，Ｎｉ＾２＋，Ｃｕ＾２＋）催化还原ＮＯ或Ｎ２Ｏ的反应。催化ＮＯ还原的活性顺序是ＮｉＴＰＰ＞ＣｏＴＴＰ＞ＣｕＴＰＰ，而Ｎ２Ｏ还原和ＮＯ深度还原为Ｎ２的顺序是ＮｉＴＰＰ＞ＣｕＴＰＰ＞ＣｏＴＰＰ．ＮＯｘ还原的催化特性和ＭＴＰＰ的电化学氧化机理有关（取决于中心金属或卟啉环被氧化的次序）。ＣＯ不仅还原ＮＯｘ而且     

热重技术研究α—Fe2O3超微粒等温还原动力学及机理

采用ＴＧ、ＸＲＤ、ＨＲＥＭ研究了拓硅针形超微粒α－Ｆｅ２Ｏ３在氮氢混合气中等温还原机理，并给出了等温还原动力学方程。ＴＧ研究结果表明，掺硅α－Ｆｅ２Ｏ３的等温还原过程符合缩核机理模型，ＨＲＥＭ照片也证实了这点；掺硅α－ＦｅＯ３的等温还原动力学符合ＥｒｏＦｅｅｖ方程，     

MTPP－CeO_x－SiO_2催化NO_x还原

在密闭循环反应器中，于２９０℃下研究了ＣＯ存在下催化剂ＭＴＰＰ－ＣｅＯ＿ｘ－ＳｉＯ＿２（Ｍ＝Ｃｏ￣（２＋）、Ｎｉ￣（２＋）、Ｃｕ￣（２＋））催化还原ＮＯ或Ｎ＿２Ｏ的反应。催化ＮＯ还原的活性顺序是ＮｉＴＰＰ＞ＣｏＴＰＰ＞ＣｕＴＰＰ，而Ｎ＿２Ｏ还原和ＮＯ深度还原为Ｎ＿２的顺序是ＮｉＴＰＰ＞ＣｕＴＰＰ＞ＣｏＴＰＰ。ＮＯ＿ｘ还原的催化特性和ＭＴＰＰ的电化学氧化机理有关（取决于中心金属或卟啉环被氧化的次序）。ＣＯ不仅还原ＮＯ＿ｘ而且还促进载体Ｃｅ＿２Ｏ＿３物种的形成。探讨了ＮＯ催化还原的机理。     

SPE电极上Pt单组分及Pt—Au双组分还原态CO2阳极剥离 …

采用循环伏安法,对ＳＰＥ Ｐｔ电极以及ＳＰＥ Ａｕ－Ｐｔ电极上还原态ＣＯ２的电化学氧化行为研究表明,此类电极的电化学特性与光滑Ｐｔ电极一致：ＣＯ２在氢原子吸附电位区０￣２５０ｍＶ（ｖｓ．ＲＨＥ）处,可与电极上化学吸附的氢反应,生成还原态的ＣＯ２,通过线性扫描,还原态ＣＯ２即发生一不可逆电化学氧化过程（阳极剥离）。在ＳＰＥ Ｐｔ系列及ＳＰＥ Ａｕ－Ｐｔ系列上ＣＯ２的电化学行为表明,当ＳＰＥ Ｐｔ系列     

原位反应生成Al-Fe/Al_2O_3,Al-Cu/Al_2O_3复合材料的过程原理

采用喷射共沉积法制备了Ａｌ－Ｆｅ２Ｏ３及Ａｌ－ＣｕＯ复合体，Ｆｅ和Ｃｕ的质量分数分别为９．６０％和５．５０％．在热处理过程中，随着温度由６００℃升高到８００℃和１０００℃，Ｆｅ３Ｏ４按Ｆｅ３Ｏ４ＦｅＯＦｅ顺序被还原，得到Ａｌ－Ｆｅ／Ａｌ２Ｏ３复合材料，其中Ｆｅ以Ａｌ１３Ｆｅ４相及ＡｌＦｅ相形式存在．Ａｌ２Ｏ３粒度为２～４μｍ均匀分布在基体中．Ａｌ／ＣｕＯ复合体在９００℃处理后，形成Ａｌ－Ｃｕ／Ａｌ２Ｏ３复合材料．文中对显微结构形成、反应进行的过程作了分析．     

Fe^2＋还原废畜电池泥渣中PbO2的试验研究

讨论了ＰｂＯ２还原过程的热力学问题，并对ＦｅＳＯ４＋Ｈ２ＳＯ４还原转化剂处理蓄电池泥渣中ＰｂＯ２及Ｐｂ过程进行了试验研究。热力学分析及试验结果表明。本研究的还原剂将ＰｂＯ２和Ｐｂ还原转化为ＰｂＳＯ４的热力学推动力大，反应速度快，工艺过程稳定以及Ｐｂ回收率高。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with