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中国科学院合肥物质科学研究院等发现纳米氧化铁表面Fe（II）/Fe（III）循环增强电化学分析行为机制（图）
中国科学院合肥物质科学研究院 纳米氧化 铁表面Fe（II）/Fe（III） 循环增强 电化学分析 行为机制
2018/3/29
近日，中国科学院合肥物质科学研究院合肥智能机械研究所黄行九研究团队，与华中师范大学教授张礼知合作，利用X-射线光电子能谱(XPS)结合扩展X-射线吸收精细结构谱(EXAFS)，深入研究哑铃状Au/Fe3O4纳米颗粒表面的活性Fe(II) 以Fe(II)/Fe(III)循环形式参与到待测物的氧化还原反应中，从而增强电化学分析行为的检测机制。相关成果发表在Analytical Chemistry杂志上...
Fe ii fluorescence in symbiotic stars。
Fe II in the orion nebula：spectroscopic observations and theoretical models
Fe II spectroscopic observations orion nebula
2009/6/11
Fe II in the orion nebula：spectroscopic observations and theoretical models。
The reduction of chromate ions by Fe(II) layered hydroxides
chromate ions Fe(II) layered hydroxides
2009/5/27
The reduction of chromate ions by Fe(OH)2 and the iron (II)-iron (III) hydroxysulphate green rust, GR(SO42-), was studied to evaluate whether such synthetic layered hydroxides and the corresponding na...
Distribution and speciation of Fe(II) in the waters of Lake Biwa and inflowing rivers
oxic environment inflowing rivers
2009/4/1
The extraction method of Fe(II)-ferrozine complex was modified to achieve detection of nanomolar concentrations of Fe(II) in freshwaters. This method was applied to investigate the distribution of tra...
Rainwater as a source of Fe(II)-stabilizing ligands to seawater
Rainwater Fe stabilizing ligands seawater
2014/4/18
Rainwater hydrophobic extractable dissolved organic matter (EDOM) contains ligand(s) that completely prevent Fe(II) oxidation for at least 4 h after rain is mixed with seawater.The EDOM Fe(II) complex...
The Direct Electrochemical Synthesis of Ti(II), Fe(II), Cd(II), Sn(II), and Pb(II) Complexes with N, N´-Bis(Salicylidene)-o-Phenylenediamine
Electrochemical Synthesis N N'-Bis(Salicylidene)-o-Phenylenediamine metal complex
2010/4/8
The electrochemical oxidation of anodic Ti, Fe, Cd, Sn, and Pb (=M) into acetonitrile solutions of N,N'-bis(salicylidene)-o-phenylenediamine [SalophH2] gives the corresponding M(Saloph) complexes in h...
新型“分子合金”类Fe(II)配合物的合成和自旋转换性能
分子合金 铁络合物 自旋转换 热致变色
2007/12/25
摘要 合成了Fe[(Htrz)~9~/~4(NH~2trz)~3~/~4](BF~4)~2.H~2O(1)和Fe[(Htrz)~3~/~2(NH~2trz)](BF~4).3H~2O(2)两个"分子合金"类自旋转换配合物。其变温光谱表明,它们在室温附近具有自旋转换行为,同时还伴有热致变色及滞后现象。
Simultaneous Determination of Fe(II) and Fe(III) in Pharmaceutical Samples by Post-Column Derivatization/HPLC
HPLC Fe(II) Fe(III) AAS Pharmaceuticals
2010/4/22
A post-column derivatization HPLC method with visible absorbance detection at 521 nm was modified for the simultaneous determination of Fe(II) and Fe(III) in mixtures. The method was applied to pharm...
Effect of Phosphate on the Formation of Nanophase Lepidocrocite from Fe(II) Sulfate
Goethite Lepidocrocite Nanophase Phosphate Rietveld Analysis
2011/12/6
Abstract: The effect of phosphate on the formation of Fe oxides from Fe(II) salts is important because phosphate is a ubiquitous anion in natural environments. For this reason, the products formed by ...
Reduction and Sorption of Chromium by Fe(II)-Bearing Phyllosilicates: Chemical Treatments and X-Ray Absorption Spectroscopy (XAS) Studies
Absorption Chromium EXAFS Phyllosilicates Reduction XANES
2011/12/6
Abstract: The reduction of hexavalent chromium species in aqueous solutions by interaction with Fe(II)-bearing solid surfaces was studied using a 0.96 × l0−3 M Cr(VI) solution and iron-rich clay...
Partial Stabilization of Fe(II) in Reduced Ferruginous Smectite by Li Fixation
Ferric Ferrous Ferruginous Smectite Infrared Spectroscopy Li Fixation Mossbauer Spectroscopy Oxidation Reduction SWa-1
2011/12/7
Abstract: Partial stabilization of Fe(II) in chemically reduced smectite, which normally readily undergoes reoxidation in air, was achieved. The purpose of this study was to determine if Fe(II) can be...
Improvements to the Quantitative Assay of Nonrefractory Minerals for Fe(II) and Total Fe Using 1,10-Phenanthroline
1,10-Phenanthroline Belousov-Zhabotinsky Reaction Fe Fe(II) Ferrous Iron Hydroxylamine Oscillatory Reaction Photoreduction Total Iron
2011/12/2
Abstract: A method using 1,10-phenanthroline (phen) to quantify Fe(II) and total Fe in nonrefractory minerals was modified to improve the accuracy and precision and to eliminate the inconvenience of p...
Influence of Fe(II) on the Formation of the Spinel Iron Oxide in Alkaline Medium
Dissolution Ferrihydrite Maghemite Magnetite Mossbauer spectroscopy
2011/12/31
Fe(II) and Fe(III) in various proportions were coprecipitated by NH3 at pH ≈ 11. The Fe(II)/Fe(III) ratio (x) was varied from 0.10 to 0.50. After stabilization by aging at pH ≃ 8 in anaerobic co...