Molecule-Based Room-Temperature Magnets: Catalytic Role of V(III) in the Synthesis of Vanadium−Chromium Prussian Blue Analogues

2002 ◽  
Vol 124 (35) ◽  
pp. 10531-10538 ◽  
Author(s):  
Raquel Garde ◽  
Françoise Villain ◽  
Michel Verdaguer
Keyword(s):  
Prussian Blue ◽  
Room Temperature ◽  
Prussian Blue Analogues ◽  
Catalytic Role

scholarly journals Study on printing wastewater treatment by decomposition reaction H2O2 catalyzed of complex between ion Ni2+ and citric acid

2020 ◽  
Vol 9 (4) ◽  
pp. 106-110
Author(s):  
Tue Nguyen Ngoc ◽  
Nghia Nguyen Trong ◽  
Thuong Nghiem Thi ◽  
Quang Tran Thuong ◽  
Trung Nguyen Duc
Keyword(s):  
Wastewater Treatment ◽  
Citric Acid ◽  
Industrial Wastewater ◽  
Room Temperature ◽  
Organic Pollutant ◽  
Decomposition Reaction ◽  
Efficient Treatment ◽  
Catalytic Role ◽  
Printing Processes

In this article, the results of the research on organic pollutant treatment in the wastewater of printing processes on fabric by H2O2 under the catalytic role of the complex between ion Ni2+ and Citric acid (H4L) were presented. The condition of pH, H4L/Ni2+, H2O2, Ni2+ concentration has been explored to get the optimal conditions for improving COD efficient treatment. The results provide the solutions of the homogeneous complex  catalysts in the industrial wastewater treatment at room temperature and atmosphere. 

Molecule-based magnets with TC above room temperature: Improved synthesis of vanadium–chromium Prussian blue analogues with inserted alkali cations

2008 ◽  
Vol 361 (12-13) ◽  
pp. 3597-3602 ◽  
Author(s):  
Raquel Garde ◽  
Juan Manuel Herrera ◽  
Françoise Villain ◽  
Michel Verdaguer
Keyword(s):  
Prussian Blue ◽  
Room Temperature ◽  
Alkali Cations ◽  
Prussian Blue Analogues

scholarly journals Room temperature synthesis of high-entropy Prussian blue analogues

Nano Energy ◽  
2021 ◽  
Vol 79 ◽  
pp. 105464
Author(s):  
Wei Jiang ◽  
Tao Wang ◽  
Hao Chen ◽  
Xian Suo ◽  
Jiyuan Liang ◽  
...  
Keyword(s):  
Prussian Blue ◽  
Room Temperature ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
High Entropy ◽  
Prussian Blue Analogues

Mixed valency and magnetism in cyanometallates and Prussian blue analogues

2007 ◽  
Vol 366 (1862) ◽  
pp. 127-138 ◽  
Author(s):  
J.M Herrera ◽  
A Bachschmidt ◽  
F Villain ◽  
A Bleuzen ◽  
V Marvaud ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Curie Temperature ◽  
Prussian Blue ◽  
Crucial Role ◽  
Transition Metal Ions ◽  
High Curie Temperature ◽  
Mixed Valency ◽  
Prussian Blue Analogues ◽  
Cyanide Ligand

Prussian blue (PB) is a well-known archetype of mixed valency systems. In magnetic PB analogues {C x A y [B(CN) 6 ] z }. n H 2 O (C alkali cation, A and B transition metal ions) and other metallic cyanometallates {C x (AL) y [B(CN) 8 ] z }. n H 2 O (L ligand), the presence of two valency states in the solid (either A–B, or A–A′ or B–B′) is crucial to get original magnetic properties: tunable high Curie temperature magnets; photomagnetic magnets; or photomagnetic high-spin molecules. We focus on a few mixed valency pairs: V(II)/V(III)/V(IV); Cr(II)/Cr(III); Fe(II)–Fe(III); Co(II)–Co(III); Cu(I)–Cu(II); and Mo(IV)/Mo(V), and discuss: (i) the control of the degree of mixed valency during the synthesis, (ii) the importance of mixed valency on the local and long-range structure and on the local and macroscopic magnetization, and (iii) the crucial role of the cyanide ligand to get these original systems and properties.

Clustering-Triggered Efficient Room Temperature Phosphorescence from Nonconventional Luminophores

2019 ◽  
Author(s):  
Shuyuan Zheng ◽  
Taiping Hu ◽  
Xin Bin ◽  
Yunzhong Wang ◽  
Yuanping Yi ◽  
...  
Keyword(s):  
Room Temperature ◽  
High Efficiency ◽  
Spin Orbit Coupling ◽  
Design Rationale ◽  
Emission Mechanism ◽  
Room Temperature Phosphorescence ◽  
Electronic Interactions ◽  
Energy Gaps ◽  
Theoretical Results

Pure organic room temperature phosphorescence (RTP) and luminescence from nonconventional luminophores have gained increasing attention. However, it remains challenging to achieve efficient RTP from unorthodox luminophores, on account of the unsophisticated understanding of the emission mechanism. Here we propose a strategy to realize efficient RTP in nonconventional luminophores through incorporation of lone pairs together with clustering and effective electronic interactions. The former promotes spin-orbit coupling and boost the consequent intersystem crossing, whereas the latter narrows energy gaps and stabilizes the triplets, thus synergistically affording remarkable RTP. Experimental and theoretical results of urea and its derivatives verify the design rationale. Remarkably, RTP from thiourea solids with unprecedentedly high efficiency of up to 24.5% is obtained. Further control experiments testify the crucial role of through-space delocalization on the emission. These results would spur the future fabrication of nonconventional phosphors, and moreover should advance understanding of the underlying emission mechanism.<br>

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