Effect of Divalent Transition Metal Ions on Physical, Morphological, Electrical and Electrochemical Properties of Alluaudite Phases Na2M2+2Fe3+(PO4)3 (M = Mn, Co and Ni): Cathode Materials for Sodium-ions Batteries

2022 ◽  
pp. 163641
Author(s):  
Douha Harbaoui ◽  
Moustafa M.S. Sanad ◽  
Cécile Rossignol ◽  
El Kebir Hlil ◽  
Noureddine Amdouni ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Electrochemical Properties ◽  
Cathode Materials ◽  
Transition Metal Ions ◽  
Sodium Ions

Impact of lithium excess on the structural and electrochemical properties of the LiNi0.5Mn1.5O4high-voltage cathode material

2015 ◽  
Vol 3 (40) ◽  
pp. 20103-20107 ◽  
Author(s):  
Yu-Feng Deng ◽  
Shi-Xi Zhao ◽  
Peng-Yuan Zhai ◽  
Guozhong Cao ◽  
Ce-Wen Nan
Keyword(s):  
Transition Metal ◽  
Cathode Material ◽  
Metal Ions ◽  
Phase Change ◽  
Electrochemical Properties ◽  
Transition Metal Ions ◽  
Octahedral Sites ◽  
Tetrahedral Sites ◽  
One Step ◽  
Co Precipitation

Li1+xNi0.5−xMn1.5O4, madeviaa novel one-step co-precipitation route, undergoes a disordered-to-ordered phase change. Transition metal ions in tetrahedral sites could influence the performance more than the cationic ordering in octahedral sites does.

scholarly journals Electrochromism and electrochemical properties of complexes of transition metal ions with benzimidazole-based ligand

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50858-50867 ◽  
Author(s):  
Monika Wałęsa-Chorab ◽  
Radosław Banasz ◽  
Damian Marcinkowski ◽  
Maciej Kubicki ◽  
Violetta Patroniak
Keyword(s):  
Optical Properties ◽  
Transition Metal ◽  
Metal Ions ◽  
Electrochemical Properties ◽  
Redox State ◽  
Transition Metal Ions ◽  
Ligand Molecule

Six complexes of transition metal ions have been synthesized and characterized. Complexes showed optical properties dependent on redox state of both metal ions and ligand molecule and can be used for the construction of multielectrochromic devices.

The electrochemical properties, nitrogen adsorption, and photocatalytic activities of three 3D metal–organic frameworks bearing the rigid terphenyl tetracarboxylates ligands

CrystEngComm ◽  
2016 ◽  
Vol 18 (17) ◽  
pp. 3086-3094 ◽  
Author(s):  
Bao Mu ◽  
Chang-Xia Li ◽  
Ming Song ◽  
Yan-Li Ren ◽  
Ru-Dan Huang
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Electrochemical Properties ◽  
Metal Organic Frameworks ◽  
Nitrogen Adsorption ◽  
Transition Metal Ions ◽  
Photocatalytic Activities ◽  
Metal Organic

Three new 3D complexes derived from the rigid terphenyl tetracarboxylates ligands with different transition metal ions have been successfully prepared. In addition, the title complexes exhibit different properties.

Redox switchable ligands suitable for transition metal ions: Protonation, complexation and electrochemical properties of a ferrocene-modified tetraamine diketone and its saturated analogue

1994 ◽  
Vol 3 (2) ◽  
pp. 115-125 ◽  
Author(s):  
Giancarlo De Santis ◽  
Luigi Fabbrizzi ◽  
Maurizio Licchelli ◽  
Piersandro Pallavicini ◽  
Angelo Perotti ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Electrochemical Properties ◽  
Transition Metal Ions

Spectroelectrochemical behavior of N-confused dioxohexaphyrins

2005 ◽  
Vol 09 (12) ◽  
pp. 813-820 ◽  
Author(s):  
Ildemar Mayer ◽  
Kiyohisa Nakamura ◽  
Alagar Srinivasan ◽  
Hiroyuki Furuta ◽  
Henrique E. Toma ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Transition Metal ◽  
Metal Ions ◽  
Electrochemical Properties ◽  
Energy Levels ◽  
Transition Metal Ions ◽  
Complex Behavior ◽  
Free Base ◽  
Conformational Effects ◽  
The Rich

Doubly N -confused dioxohexaphyrins were characterized by cyclic voltammetry and spectroelectrochemistry in the -2.5 to +2.0 V vs Ag | Ag + (0.10 M, in CH3CN) range. Six reversible monoelectronic processes were found suggesting that the rich electrochemistry of porphyrin systems was preserved in that expanded macrocycle. However, the electronic and electrochemical properties of the free-base, Cu(II) and Ni(II) species were shown to be sensitive to the coordinated transition metal ions and solvent revealing a quite complex behavior, probably reflecting the higher flexibility and strong conformational effects on the energy levels and stability of those complexes.

HREM Study of electron-induced surface radiation damage in ReO3

1991 ◽  
Vol 49 ◽  
pp. 636-637
Author(s):  
R. Ai ◽  
H.-J. Fan ◽  
L. D. Marks
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Metal Oxides ◽  
Electron Irradiation ◽  
Transition Metal Oxides ◽  
Carbon Film ◽  
Transition Metal Ions ◽  
Surface Radiation ◽  
Valence Transition ◽  
Electron Microscopes

It has been known for a long time that electron irradiation induces damage in maximal valence transition metal oxides such as TiO2, V2O5, and WO3, of which transition metal ions have an empty d-shell. This type of damage is excited by electronic transition and can be explained by the Knoteck-Feibelman mechanism (K-F mechanism). Although the K-F mechanism predicts that no damage should occur in transition metal oxides of which the transition metal ions have a partially filled d-shell, namely submaximal valence transition metal oxides, our recent study on ReO3 shows that submaximal valence transition metal oxides undergo damage during electron irradiation.ReO3 has a nearly cubic structure and contains a single unit in its cell: a = 3.73 Å, and α = 89°34'. TEM specimens were prepared by depositing dry powders onto a holey carbon film supported on a copper grid. Specimens were examined in Hitachi H-9000 and UHV H-9000 electron microscopes both operated at 300 keV accelerating voltage. The electron beam flux was maintained at about 10 A/cm2 during the observation.

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