scholarly journals Recent advances on the utilization of layered double hydroxides (LDHs) and related heterogeneous catalysts in a lignocellulosic-feedstock biorefinery scheme

2017 ◽  
Vol 19 (22) ◽  
pp. 5269-5302 ◽  
Author(s):  
Willinton Y. Hernández ◽  
Jeroen Lauwaert ◽  
Pascal Van Der Voort ◽  
An Verberckmoes
Keyword(s):  
Liquid Phase ◽  
Layered Double Hydroxides ◽  
Heterogeneous Catalysts ◽  
Recent Advances ◽  
Lignocellulosic Feedstock ◽  
Different Types ◽  
Double Hydroxides

Layered double hydroxides (LDHs) and derived materials have been widely used as heterogeneous catalysts for different types of reactions either in gas or in liquid phase.

Nanocomposite Photocatalyst Based on Layered Double Hydroxides (LDHs) Associated with TiO2

2014 ◽  
Vol 92 ◽  
pp. 100-109 ◽  
Author(s):  
Jonjaua Ranogajec ◽  
Andrijana Sever-Skapin ◽  
Ognjen Rudic ◽  
Snezana Vucetic
Keyword(s):  
Photocatalytic Activity ◽  
Layered Double Hydroxides ◽  
Direct Contact ◽  
Building Materials ◽  
Specific Problem ◽  
The Self ◽  
Different Types ◽  
Double Hydroxides ◽  
Positive Effect ◽  
Material Porosity

The surfaces of building materials are constantly exposed to the actions of environmental factors, pollutants of inorganic and organic origin as well as to microorganisms, which significantly contribute to corrosion phenomena.The application of coatings decreases the negative action of the pollutants minimizing their direct contact with the substrate. Different types of coatings with additional functions have been developed. A specific problem of these applications is the lack of compatibility of the photocatalysts with the surface of the building materials and the detachment of potentially toxic TiO2nanoparticles. In the present study, this problem was solved by the proper immobilization of TiO2nanoparticles onto the photocatalyst support, layered double hydroxides (LDHs). The newly formed coating possesses acceptable porosity for a porous building material (porosity within the range of 30-46 %) and satisfied photocatalytic activity, as well as mineralogical compatibility with the substrates (mortars, renders, bricks). Additionally, a positive effect considering the self-cleaning phenomenon was attained.

Recent Advances on the Use of Nickel Nano Layered Double Hydroxides as Green, and Efficient, Catalysts for Water Splitting

2020 ◽  
Vol 150 (7) ◽  
pp. 1942-1956 ◽  
Author(s):  
Daniel Likius ◽  
Ateeq Rahman ◽  
Chiguvare Zivayi ◽  
Veikko Uahengo
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxides ◽  
Recent Advances ◽  
Double Hydroxides

scholarly journals Liquid phase exfoliation of carbonate-intercalated layered double hydroxides

2019 ◽  
Vol 55 (23) ◽  
pp. 3315-3318 ◽  
Author(s):  
Jose A. Carrasco ◽  
Andrew Harvey ◽  
Damien Hanlon ◽  
Vicent Lloret ◽  
Dave McAteer ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Anion Exchange ◽  
Layered Double Hydroxides ◽  
Exchange Reactions ◽  
Liquid Phase Exfoliation ◽  
Double Hydroxides

Direct exfoliation of carbonate layered double hydroxides has been achieved by using a novel horn-probe sonic tip, avoiding the development of time-consuming anion-exchange reactions.

New heterogeneous catalysts with Mo(II) intercalated in layered double hydroxides

2017 ◽  
Vol 455 ◽  
pp. 483-488 ◽  
Author(s):  
Maria Diaz-Couce ◽  
João Marreiros ◽  
Maria João Ferreira ◽  
Pedro D. Vaz ◽  
Carla D. Nunes ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Heterogeneous Catalysts ◽  
Double Hydroxides

Recent advances for layered double hydroxides (LDHs) materials as catalysts applied in green aqueous media

2015 ◽  
Vol 247 ◽  
pp. 163-169 ◽  
Author(s):  
Changming Li ◽  
Min Wei ◽  
David G. Evans ◽  
Xue Duan
Keyword(s):  
Layered Double Hydroxides ◽  
Aqueous Media ◽  
Recent Advances ◽  
Double Hydroxides

scholarly journals Recent Advances in Layered Double Hydroxides and Their Derivatives for Biomedical Applications

2021 ◽  
Vol 79 (3) ◽  
pp. 238
Author(s):  
Jiaxin Li ◽  
Bei Li ◽  
Jikang Wang ◽  
Lei He ◽  
Yufei Zhao
Keyword(s):  
Layered Double Hydroxides ◽  
Biomedical Applications ◽  
Recent Advances ◽  
Double Hydroxides

scholarly journals Recent Advances on the Application of Layered Double Hydroxides in Concrete—A Review

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1426
Author(s):  
Zahid M. Mir ◽  
Alexandre Bastos ◽  
Daniel Höche ◽  
Mikhail L. Zheludkevich
Keyword(s):  
Layered Double Hydroxides ◽  
Economic Losses ◽  
Recent Past ◽  
New Class ◽  
Recent Advances ◽  
Chloride Resistance ◽  
Potential Applications ◽  
Balanced Structure ◽  
Double Hydroxides ◽  
Positively Charged

The issue of chloride induced corrosion of reinforced concrete is a serious problem affecting infrastructure globally and causing huge economic losses. As such this issue has gained a considerable attention in the scientific community in the recent past. Layered Double Hydroxides (LDHs) have recently emerged as a new class of concrete-additives with a potential to increase the chloride resistance of concrete and mitigate corrosion. LDHs are clay like structures consisting of positively charged layers of cations with associated hydroxides and exchangeable anions in between the layers. Due to this charge balanced structure, LDHs possess the property of encapsulating an anion from the environment and replacing it with an exchangeable anion present in its layers. Potential applications include chloride entrapment in concrete and delivery of corrosion inhibiting anions. However, many versatile compositions of LDHs can be easily synthesized and their application as cement additives reach far beyond corrosion mitigation in concrete. This review presents a summary of recent advances on the applications of LDH in concrete. An extensive set of recently published literature has been critically reviewed and trends have been identified.

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