DFT study on MgAl-layered double hydroxides with different interlayer anions: structure, anion exchange, host–guest interaction and basic sites

2020 ◽  
Vol 22 (4) ◽  
pp. 2521-2529 ◽  
Author(s):  
Hui-Min Liu ◽  
Xiao-Jie Zhao ◽  
Yu-Quan Zhu ◽  
Hong Yan
Keyword(s):  
Anion Exchange ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Functional Materials ◽  
Dft Study ◽  
Basic Sites ◽  
Double Hydroxide ◽  
Double Hydroxides

The guest anions play a key role in the construction of layered double hydroxide (LDH)-based host–guest functional materials.

scholarly journals A class of novel luminescent layered double hydroxide nanotubes

RSC Advances ◽  
2021 ◽  
Vol 11 (40) ◽  
pp. 24747-24751
Author(s):  
Dimy Nanclares ◽  
Alysson F. Morais ◽  
Thainá Calaça ◽  
Ivan G. N. Silva ◽  
Danilo Mustafa
Keyword(s):  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Soft Templating ◽  
Double Hydroxide ◽  
Double Hydroxides

The incorporation of triply charged lanthanides in layered double hydroxides (LDHs) enables the curvature of the LDH sheets, unlocking the possibility of using a soft templating strategy to produce a class of luminescent, hierarchical LDH nanotubes.

Synthesis of Li/Al layered double hydroxide-guest composites under mild acid conditions

Clay Minerals ◽  
2004 ◽  
Vol 39 (2) ◽  
pp. 115-121 ◽  
Author(s):  
Deng-Shiu Yang ◽  
Ming-Kuang Wang ◽  
Shan-Li Wang
Keyword(s):  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Starting Material ◽  
Anionic Clays ◽  
Step Procedure ◽  
Alkaline Conditions ◽  
Double Hydroxide ◽  
Double Hydroxides ◽  
Mild Acid ◽  
Positively Charged

AbstractLayered double hydroxides (LDHs) are known as ‘anionic clays’. They comprise a class of material with positively charged octahedral double hydroxyl layers and exchangeable anions. The Li/Al LDH term includes a group of LDHs with Li/Al octahedral double hydroxyl layers. We have demonstrated a modifed method, using Li/Al LDH-OH (OH− as interlayer anions) as the starting material, for preparing Li/Al LDH-X (X represents interlayer anions, including dioctyl sulphosuccinate (DOSS), dodecyl sulphate (DDS), mercaptoacetate (MA), EDTA, Tiron and dichromate) under mild acid conditions (pH in the range 4 to 5). However, in the case of acidsensitive anions, Fe(CN)64−, Li/Al LDH-Fe(CN)64− can be prepared by a two-step procedure using Li/Al LDH-DOSS or similar compounds as intermediates to react with acid-sensitive anions under mild alkaline conditions (pH ≈ 9).

A highly efficient and durable water splitting system: platinum sub-nanocluster functionalized nickel–iron layered double hydroxide as the cathode and hierarchical nickel–iron selenide as the anode

2019 ◽  
Vol 7 (6) ◽  
pp. 2831-2837 ◽  
Author(s):  
Qing Yan ◽  
Peng Yan ◽  
Tong Wei ◽  
Guiling Wang ◽  
Kui Cheng ◽  
...  
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Nickel Iron ◽  
Iron Selenide ◽  
Highly Efficient ◽  
Double Hydroxide ◽  
Double Hydroxides ◽  
Splitting System

A highly-efficient water splitting device is assembled with the platinum sub-nanoclusters functionalized nickel iron layered double hydroxides and hierarchical nickel iron selenides.

Layered double hydroxide and sulindac coiled and scrolled nanoassemblies for storage and drug release

RSC Advances ◽  
2016 ◽  
Vol 6 (20) ◽  
pp. 16419-16436 ◽  
Author(s):  
Michele A. Rocha ◽  
Philippe A. D. Petersen ◽  
Erico Teixeira-Neto ◽  
Helena M. Petrilli ◽  
Fabrice Leroux ◽  
...  
Keyword(s):  
Drug Release ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
P Systems ◽  
Synthetic Method ◽  
One Pot ◽  
High Crystallinity ◽  
Anti Inflammatory ◽  
Double Hydroxide ◽  
Double Hydroxides

Systems comprising anti-inflammatory sulindac intercalated into biocompatible layered double hydroxides nanovehicles were isolated through one pot synthetic method and showed high crystallinity and curled or scrolled particles.

Ultrasonication-assisted synthesis of ternary-component Ni3AlxFe1−x-layered double hydroxide nanoparticles for the oxygen evolution reaction in a neutral solution

2018 ◽  
Vol 42 (16) ◽  
pp. 13963-13970 ◽  
Author(s):  
Leila Jafari Foruzin ◽  
Biuck Habibi ◽  
Zolfaghar Rezvani
Keyword(s):  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Neutral Solution ◽  
Rapid Process ◽  
Double Hydroxide ◽  
Double Hydroxides ◽  
Ternary Component ◽  
Layered Double Hydroxide Nanoparticles

In this study, ultrasonication, a facile and rapid process, was utilized for the preparation of ternary-component layered double hydroxides (LDHs), Ni3AlxFe1−x-LDHs, as the electrocatalyst material for the oxygen evolution reaction (OER) in a neutral solution.

scholarly journals Nanohybrid layered double hydroxide materials as efficient catalysts for methanol electrooxidation

RSC Advances ◽  
2019 ◽  
Vol 9 (24) ◽  
pp. 13503-13514 ◽  
Author(s):  
Shimaa Gamil ◽  
Waleed M. A. El Rouby ◽  
Manuel Antuch ◽  
I. T. Zedan
Keyword(s):  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Methanol Electrooxidation ◽  
Double Hydroxide ◽  
Double Hydroxides

Methanol electrooxidation over layered double hydroxides.

scholarly journals Modulating the electronic structure of ultrathin layered double hydroxide nanosheets with fluorine: an efficient electrocatalyst for the oxygen evolution reaction

2019 ◽  
Vol 7 (24) ◽  
pp. 14483-14488 ◽  
Author(s):  
Zhijuan Liu ◽  
Chung-Li Dong ◽  
Yu-Cheng Huang ◽  
Jiajie Cen ◽  
Haotian Yang ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Plasma Etching ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Etching Technique ◽  
Double Hydroxide ◽  
Double Hydroxides

Herein, we effectively modulate the electronic structure of Co3Fe layered double hydroxides (LDHs) by F-doping using a CHF3-plasma etching technique.

scholarly journals Core–shell zeolite@aqueous miscible organic-layered double hydroxides

2016 ◽  
Vol 7 (2) ◽  
pp. 1457-1461 ◽  
Author(s):  
Chunping Chen ◽  
Coral F. H. Byles ◽  
Jean-Charles Buffet ◽  
Nicholas H. Rees ◽  
Yue Wu ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Hybrid Materials ◽  
Layered Double Hydroxides ◽  
Coprecipitation Method ◽  
Core Shell ◽  
Double Hydroxide ◽  
Double Hydroxides ◽  
Microporous Zeolite ◽  
General Method

We report a general method for the synthesis of core–shell hybrid materials containing a microporous zeolite core with an aqueous miscible organic-layered double hydroxide (AMO-LDH) shell using a simplein situcoprecipitation method.

Confined synthesis of carbon dots with tunable long-wavelength emission in a 2-dimensional layered double hydroxide matrix

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7888-7894 ◽  
Author(s):  
Wendi Liu ◽  
Ruizheng Liang ◽  
Yanjun Lin
Keyword(s):  
Optical Properties ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Carbon Dots ◽  
Long Wavelength ◽  
Wavelength Emission ◽  
Double Hydroxide ◽  
Double Hydroxides

CDs with gradual modulation in structures and optical properties can be obtained through a confined reaction in 2-dimentsonal layered double hydroxides.

Converting Mn/Al layered double hydroxide anion exchangers into cation exchangers by topotactic reactions using alkali metal sulfate solutions

2019 ◽  
Vol 55 (54) ◽  
pp. 7824-7827 ◽  
Author(s):  
Anne Raquel Sotiles ◽  
Fernando Wypych
Keyword(s):  
Alkali Metal ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Metal Sulfate ◽  
Hydroxide Anion ◽  
Sulfate Solutions ◽  
Topotactic Reactions ◽  
Cation Exchangers ◽  
Double Hydroxide ◽  
Double Hydroxides

Layered double hydroxides [Mn2Al(OH)6](An−)x/n·yH2O (An− = Cl− or NO3−) were exchanged with Na2SO4 and cationic/anionic exchangers [Mn6Al3(OH)18](SO4,NaSO4) were obtained.

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