Layered double hydroxides as carriers for quantum dots@silica nanospheres

2013 ◽  
Author(s):  
Georgiana Stoica ◽  
Iván Castelló Serrano ◽  
Emilio Palomares
Keyword(s):  
Quantum Dots ◽  
Layered Double Hydroxides ◽  
Silica Nanospheres ◽  
Double Hydroxides

Layered double hydroxides as carriers for quantum dots@silica nanospheres

Nanoscale ◽  
2012 ◽  
Vol 4 (17) ◽  
pp. 5409 ◽  
Author(s):  
Georgiana Stoica ◽  
Iván Castelló Serrano ◽  
Albert Figuerola ◽  
Irati Ugarte ◽  
Roberto Pacios ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Layered Double Hydroxides ◽  
Silica Nanospheres ◽  
Double Hydroxides

Electrochemiluminescence resonance energy transfer (ERET) towards trinitrotoluene sensor based on layer-by-layer assembly of luminol-layered double hydroxides and CdTe quantum dots

2017 ◽  
Vol 5 (14) ◽  
pp. 3473-3479 ◽  
Author(s):  
Zhixiong Li ◽  
Yuqiong Zhou ◽  
Dongpeng Yan ◽  
Min Wei
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Layered Double Hydroxides ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Cdte Quantum Dots ◽  
Layer By Layer ◽  
High Level ◽  
Double Hydroxides ◽  
Layer Assembly

Electrochemiluminescence (ECL) resonance energy transfer (ERET) systems have shown excellent potential in analysis and detection fields because of the supersensitivity, high level of controllability, and amplified signal.

A novel luminescence probe based on layered double hydroxides loaded with quantum dots for simultaneous detection of heavy metal ions in water

2017 ◽  
Vol 5 (20) ◽  
pp. 5024-5030 ◽  
Author(s):  
Jieyuan Liu ◽  
Guocheng Lv ◽  
Wenlong Gu ◽  
Zhaohui Li ◽  
Aiwei Tang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Quantum Dots ◽  
Layered Double Hydroxides ◽  
Luminescence Intensity ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Real Water Samples ◽  
Remarkable Improvement ◽  
Double Hydroxides

A remarkable improvement in luminescence intensity was achieved by immobilizing quantum dots on the surface of layered double hydroxides, for the detection of heavy metals in real water samples.

scholarly journals Structure observation of graphene quantum dots by single-layered formation in layered confinement space

2015 ◽  
Vol 6 (8) ◽  
pp. 4846-4850 ◽  
Author(s):  
Liqing Song ◽  
Jingjing Shi ◽  
Jun Lu ◽  
Chao Lu
Keyword(s):  
Quantum Dots ◽  
Layered Double Hydroxides ◽  
Graphene Quantum Dots ◽  
Confined Space ◽  
Layered Formation ◽  
Structure Observation ◽  
Double Hydroxides

We observe the structure of single-layered graphene quantum dots prepared in the 2D confined space of layered double hydroxides.

scholarly journals MXene quantum dots rivet reinforced Ni-Co LDH for boosting electrochemical activity and cycling stability

2021 ◽  
Author(s):  
Lili Song ◽  
Shifan Zhu ◽  
Le Tong ◽  
Wandi Wang ◽  
Chun Ouyang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Layered Double Hydroxides ◽  
Cycling Stability ◽  
Electrochemical Activity ◽  
Surface Component ◽  
Double Hydroxides

The rapid activity degradation of layered double hydroxides (LDHs) is caused by the mismatch of surface component and construction. Herein, MXene quantum dots (MQDs) rivets are used to adjust the...

Acceptorless amine dehydrogenation and transamination using Pd-doped layered double hydroxides

2018 ◽  
Author(s):  
Diana Ainembabazi ◽  
Nan An ◽  
Jinesh Manayil ◽  
Kare Wilson ◽  
Adam Lee ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Oxidation States ◽  
Secondary Amines ◽  
Primary Amines ◽  
Acid Dissolution ◽  
Oxidative Amination ◽  
Strong Function ◽  
Excellent Activity ◽  
High Yields ◽  
Double Hydroxides

<div> <p>The synthesis, characterization, and activity of Pd-doped layered double hydroxides (Pd-LDHs) for for acceptorless amine dehydrogenation is reported. These multifunctional catalysts comprise Brønsted basic and Lewis acidic surface sites that stabilize Pd species in 0, 2+, and 4+ oxidation states. Pd speciation and corresponding cataytic performance is a strong function of metal loading. Excellent activity is observed for the oxidative transamination of primary amines and acceptorless dehydrogenation of secondary amines to secondary imines using a low Pd loading (0.5 mol%), without the need for oxidants. N-heterocycles, such as indoline, 1,2,3,4-tetrahydroquinoline, and piperidine, are dehydrogenated to the corresponding aromatics with high yields. The relative yields of secondary imines are proportional to the calculated free energy of reaction, while yields for oxidative amination correlate with the electrophilicity of primary imine intermediates. Reversible amine dehydrogenation and imine hydrogenation determine the relative imine:amine selectivity. Poisoning tests evidence that Pd-LDHs operate heterogeneously, with negligible metal leaching; catalysts can be regenerated by acid dissolution and re-precipitation.</p> </div> <br>

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