Two-dimensional ultrathin nanosheets of Ni–In-layered double hydroxides prepared in water: enhanced performance for DNA adsorption

RSC Advances ◽  
2014 ◽  
Vol 4 (57) ◽  
pp. 29968 ◽  
Author(s):  
Yongjuan Wang ◽  
Yuming Zhou ◽  
Tao Zhang ◽  
Man He ◽  
Xiaohai Bu
Keyword(s):  
Layered Double Hydroxides ◽  
Two Dimensional ◽  
Dna Adsorption ◽  
Ultrathin Nanosheets ◽  
Double Hydroxides

scholarly journals Designing Magnetic Layered Double Hydroxides and Two-Dimensional Magnetic Nano-Nets of Cobalt Ferrite through a Novel Approach

2018 ◽  
Vol 8 (11) ◽  
pp. 2099 ◽  
Author(s):  
Osama Saber ◽  
Abdullah Aljaafari ◽  
Sarah Asiri ◽  
Khalid Batoo
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Layered Double Hydroxides ◽  
Cobalt Ferrite ◽  
High Coercivity ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Double Hydroxides

The present study has a dual aim of supporting magnetic nanoparticles over the nanolayers of LDHs and designing two-dimensional magnetic nano-nets of cobalt ferrite. In this trend, nanoparticles of CoFe2O4 were prepared and supported by Co-Fe LDH through urea hydrolysis. The nanolayered structures of Co-Fe LDH were confirmed by X-ray diffraction, energy-dispersive X-ray spectrometry, FT-IR spectra, thermal analyses, and transmission electron microscopy. In addition, they indicated that 13.2% CoFe2O4 were supported over Co-Fe LDH. Transformation of the nanolayered structures of Co-Fe LDH to nano-nets was achieved by the catalytic effect of the supported CoFe2O4 nanoparticles through solvent thermal technique. X-ray diffraction patterns and transmission electron microscopy images confirmed the transformation of the supported Co-Fe LDH to nano-nets of cobalt ferrite. In order to indicate the effect of the LDH for designing the nano-nets, nanoparticles of cobalt ferrite were prepared by the same technique without LDH. The magnetic behavior of the nano-nets and the supported Co-Fe LDH were measured and compared with the nanoparticles through vibrating sample magnetometer technique. The magnetic parameters indicated that the prepared nano-nets have ferromagnetic behavior and high coercivity. However, the prepared nanoparticles revealed a superparamagnetic state and low coercivity. The experimental results concluded that the incorporation of nanoparticles with nanowires into nano-net structures has been found to be an efficient way to improve their magnetic properties and prevent their agglomerations. Finally, layered double hydroxides are an important source for constructing magnetic nanolayered structures and nano-nets.

Two-dimensional layered double hydroxide as a platform for electrocatalytic oxygen evolution

2021 ◽  
Author(s):  
Jie Yu ◽  
Feng Yu ◽  
Muk-Fung Yuen ◽  
Chundong Wang
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Essential Role ◽  
Two Dimensional ◽  
Double Hydroxide ◽  
Double Hydroxides

The Oxygen Evolution Reaction (OER) plays an essential role in hydrogen production for water splitting, metal-air secondary batteries, and artificial photosynthesis. Among the various OER catalysts, layered double hydroxides (LDHs)...

scholarly journals Special Issue: Layered Double Hydroxides (LDH) and LDH-Based Hybrid Composites

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2582
Author(s):  
Jakub Matusik
Keyword(s):  
Layered Double Hydroxides ◽  
Hybrid Composites ◽  
Two Dimensional ◽  
Special Issue ◽  
Double Hydroxides

LDHs are a class of two-dimensional layered anionic structures with unique properties [...]

One-step synthesis of nickel–iron layered double hydroxides with tungstate acid anions via flash nano-precipitation for the oxygen evolution reaction

2019 ◽  
Vol 3 (1) ◽  
pp. 237-244 ◽  
Author(s):  
Xueyan Xue ◽  
Feng Yu ◽  
Banghua Peng ◽  
Gang Wang ◽  
Yin Lv ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Precious Metal ◽  
Two Dimensional ◽  
Nickel Iron ◽  
Rich Diversity ◽  
One Step ◽  
Double Hydroxide ◽  
Double Hydroxides

Layered double hydroxide materials with two-dimensional structures and rich diversity have proved to be very promising candidates for non-precious metal electrocatalysis of the oxygen evolution reaction.

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