Four octamolybdate complexes constructed from a quinoline–imidazole–monoamide ligand: structures and electrochemical, photocatalytic and magnetic properties

CrystEngComm ◽  
2020 ◽  
Vol 22 (48) ◽  
pp. 8322-8329
Author(s):  
Lei Li ◽  
Xiang Wang ◽  
Na Xu ◽  
Zhihan Chang ◽  
Guocheng Liu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Photocatalytic Properties ◽  
Antiferromagnetic Behavior

Four octamolybdate-based complexes synthesized by employing N-(quinoline-5-yl)-1H-imidazole-4-carboxamide as a ligand exhibit excellent electrocatalytic activities, photocatalytic properties and antiferromagnetic behavior.

scholarly journals Correction: Four Co(ii) coordination polymers based on 4,4′-(1H-1,2,4-triazol-1-yl)methylenebis(benzoic acid): syntheses, structural diversity, magnetic properties, dye adsorption and photocatalytic properties

CrystEngComm ◽  
2019 ◽  
Vol 21 (5) ◽  
pp. 925-925
Author(s):  
Zi-ao Zong ◽  
Chuan-bin Fan ◽  
Xia Zhang ◽  
Xiang-min Meng ◽  
Fan Jin ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Benzoic Acid ◽  
Coordination Polymers ◽  
Dye Adsorption ◽  
Structural Diversity ◽  
Photocatalytic Properties

Correction for ‘Four Co(ii) coordination polymers based on 4,4′-(1H-1,2,4-triazol-1-yl)methylenebis(benzoic acid): syntheses, structural diversity, magnetic properties, dye adsorption and photocatalytic properties’ by Zi-ao Zong et al., CrystEngComm, 2019, DOI: 10.1039/c8ce01203b.

scholarly journals Tuning the Room Temperature Ferromagnetism in Fe5GeTe2 by Arsenic Substitution

2D Materials ◽  
2021 ◽  
Author(s):  
Andrew May ◽  
Jiaqiang Yan ◽  
Raphael Hermann ◽  
Mao-Hua Du ◽  
Michael A McGuire
Keyword(s):  
Magnetic Properties ◽  
Curie Temperature ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Fine Tuning ◽  
The Individual ◽  
Curie Temperature Tc ◽  
Antiferromagnetic Behavior ◽  
Magnetic Sublattices

Abstract In order to tune the magnetic properties of the cleavable high-Curie temperature ferromagnet Fe5-xGeTe2, the effect of increasing the electron count through arsenic substitution has been investigated. Small additions of arsenic (2.5 and 5%) seemingly enhance ferromagnetic order in polycrystalline samples by quenching fluctuations on one of the three magnetic sublattices, whereas larger As concentrations decrease the ferromagnetic Curie temperature (TC) and saturation magnetization. This work also describes the growth and characterization of Fe4.8AsTe2 single crystals that are structurally analogous to Fe5-xGeTe2 but with some phase stability complications. Magnetization measurements reveal dominant antiferromagnetic behavior in Fe4.8AsTe2 with a Neel temperature of TN ≈42K. A field-induced spin-flop below TN results in a switch from negative to positive magnetoresistance, with significant hysteresis causing butterfly-shaped resistance loops. In addition to reporting the properties of Fe4.8GeTe2, this work shows the importance of manipulating the individual magnetic sublattices in Fe5-xGeTe2 and motivates further efforts to control the magnetic properties in related materials by fine tuning of the Fermi energy or crystal chemistry.

Four Co(ii) coordination polymers based on 4,4′-(1H-1,2,4-triazol-1-yl)methylenebis(benzoic acid): syntheses, structural diversity, magnetic properties, dye adsorption and photocatalytic properties

CrystEngComm ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 673-686 ◽  
Author(s):  
Zi-ao Zong ◽  
Chuan-bin Fan ◽  
Xia Zhang ◽  
Xiang-min Meng ◽  
Fan Jin ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Benzoic Acid ◽  
Coordination Polymers ◽  
Dye Adsorption ◽  
Structural Diversity ◽  
Organic Dye ◽  
Photocatalytic Properties ◽  
Dye Molecules

Four multi-functional Co(ii) complexes are applied in removing organic dye molecules from the wastewater.

Synthesis of α-Fe2O3 Nanowires and its Magnetic Properties

2005 ◽  
Vol 23 ◽  
pp. 243-246 ◽  
Author(s):  
Y.W. Liu ◽  
X.F. Rui ◽  
Y.Y. Fu ◽  
Han Zhang
Keyword(s):  
Magnetic Properties ◽  
Magnetic Property ◽  
High Temperature ◽  
Low Temperature ◽  
Single Crystals ◽  
Magnetic Moment ◽  
Ferromagnetic Behavior ◽  
Fe2o3 Nanoparticle ◽  
Block Temperature ◽  
Antiferromagnetic Behavior

a-Fe2O3 nanowire was successfully synthesized by oxidation of pure iron. The as-synthesized a-Fe2O3 nanowire arrayed normal to the surface of the substrate, were perfect single crystals with diameters of 20 to 40 nm and lengths varying from 2 to 5 µm. The magnetic property of the nanowires was studied, and some interesting phenomena were observed. The magnetic moment of the nanowire shows an antiferromagnetic behavior at high temperature and a weakly ferromagnetic behavior at low temperature. The block temperature of the a-Fe2O3 nanowire was found to be significantly higher than that of a-Fe2O3 nanoparticle.

Syntheses, structures and photocatalytic properties of five new praseodymium–antimony oxochlorides: from discrete clusters to 3D inorganic–organic hybrid racemic compounds

2014 ◽  
Vol 43 (26) ◽  
pp. 10064-10073 ◽  
Author(s):  
Guo-Dong Zou ◽  
Ze-Ping Wang ◽  
Ying Song ◽  
Bing Hu ◽  
Xiao-Ying Huang
Keyword(s):  
Magnetic Properties ◽  
Photocatalytic Properties ◽  
Organic Hybrid ◽  
3D Framework

Presented here are five Pr–Sb–O–Cl cluster-based compounds with structures from discrete organic-decorated cluster to 3D framework that exhibit photocatalytic H2-evolution activity and magnetic properties.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

Microstructure in soft magnetic E3 (S1, Al) (Sendust) alloys

1988 ◽  
Vol 46 ◽  
pp. 770-771
Author(s):  
June D. Kim
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Ternary Phase Diagram ◽  
Vertical Tube ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
Soft Magnetic ◽  
Quenching Temperature ◽  
Thin Foils ◽  
Vertical Tube Furnace

Iron-base alloys containing 8-11 wt.% Si, 4-8 wt.% Al, known as “Sendust” alloys, show excellent soft magnetic properties. These magnetic properties are strongly dependent on heat treatment conditions, especially on the quenching temperature following annealing. But little has been known about the microstructure and the Fe-Si-Al ternary phase diagram has not been established. In the present investigation, transmission electron microscopy (TEM) has been used to study the microstructure in a Sendust alloy as a function of temperature.An Fe-9.34 wt.% Si-5.34 wt.% Al (approximately Fe3Si0.6Al0.4) alloy was prepared by vacuum induction melting, and homogenized at 1,200°C for 5 hrs. Specimens were heat-treated in a vertical tube furnace in air, and the temperature was controlled to an accuracy of ±2°C. Thin foils for TEM observation were prepared by jet polishing using a mixture of perchloric acid 15% and acetic acid 85% at 10V and ∼13°C. Electron microscopy was performed using a Philips EM 301 microscope.

Tuning the pore structures and photocatalytic properties of a 2D covalent organic framework with multi-branched photoactive moieties

Nanoscale ◽  
2020 ◽  
Vol 12 (30) ◽  
pp. 16136-16142
Author(s):  
Xuan Wang ◽  
Ming-Jie Dong ◽  
Chuan-De Wu
Keyword(s):  
Photocatalytic Properties ◽  
Effective Strategy ◽  
Covalent Organic Framework ◽  
Highly Efficient ◽  
Pore Structures ◽  
Local Connection ◽  
Organic Framework

An effective strategy to incorporate accessible metalloporphyrin photoactive sites into 2D COFs by establishing a 3D local connection for highly efficient photocatalysis was developed.

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