نتایج جستجو برای: layered double hydroxide ldhs

تعداد نتایج: 284645  

2016
Tianlei Wang Meitang Liu Hongwen Ma

Layered double hydroxides (LDHs), luminescent π-conjugated anionic polymer and montmorillonite (MMT) were orderly assembled into luminescent multilayer films via layer-by-layer self-assembly method. The electronic microenvironment (EME), the structure of which is like a traditional capacitor, can be constructed by exfoliated LDHs or MMT nanosheets. In addition, the rigid inorganic laminated con...

Journal: :Applied Clay Science 2022

Resistance to antimicrobial agents is responsible for major social and economic losses. The World Health Organization estimated 700,000 global deaths a year due resistance. use of layered double hydroxides (LDHs) as antibacterial materials could present way reduce the risk bacterial infections resistance, by partial release metallic ions in aqueous dispersion. dissolution different synthetic LD...

2016
Gyeong-Hyeon Gwak Istvan Kocsis Yves-Marie Legrand Mihail Barboiu Jae-Min Oh

Guanosine monophosphates (GMPs) were intercalated into the interlayer space of layered double hydroxides (LDHs) and the molecular arrangement of GMP was controlled in LDHs. The intercalation conditions such as GMP/LDH molar ratio and reaction temperature were systematically adjusted. When the GMP/LDH molar ratio was 1:2, which corresponds to the charge balance between positive LDH sheets and GM...

2012
Zheng CHANG

Layered double hydroxides (LDHs) and rare earth elements (REEs) have both attracted extensive attention because of their structures and properties. The layered structure of LDHs makes it possible for many functional ions to be incorporated and the uniform dispersion of metal organic anions in interlayer galleries or metal cations in layers extends the applications of layered materials to a wide...

Journal: :Journal of the American Chemical Society 2010
Meng-Qiang Zhao Qiang Zhang Wei Zhang Jia-Qi Huang Yinghao Zhang Dang Sheng Su Fei Wei

A chemical precursor mediated process was used to form catalyst nanoparticles (NPs) with an extremely high density (10(14) to 10(16) m(-2)), controllable size distribution (3-20 nm), and good thermal stability at high temperature (900 °C). This used metal cations deposited in layered double hydroxides (LDHs) to give metal catalyst NPs by reduction. The key was that the LDHs had their intercalat...

Journal: :Advanced Energy Materials 2023

Nickel-iron layered double hydroxides (Ni-Fe LDHs) consist of stacked Fe3+-doped positively charged Ni-hydroxide layers containing charge-balancing anions and water molecules between the layers. Although Ni-Fe LDHs are highly active in oxygen evolution reaction (OER) under alkaline conditions, their poor operational stability remains an issue. Herein, based on density functional theory calculat...

2017
Christian Ruby Muhammad Usman Sebastien Naille Khalil Hanna Cédric Carteret Martine Mullet Michel François Mustapha Abdelmoula C. Ruby M. Usman S. Naille K. Hanna C. Carteret M. Mullet M. François M. Abdelmoula

Iron-based layered double hydroxides (LDHs) obey to the general chemical formula [MII(1-x)MIIIx(OH)2]x+. [(x/n) An-, m H2O]xand contain a minimum of 50 % of iron, i.e. FeII or FeIII, in the cationic sheets. As LDHs contain FeII species, these are interesting minerals for several applications such as the reduction of anionic pollutants or the degradation of organic pollutants. They are mostly pr...

Journal: :Colloids and Surfaces A: Physicochemical and Engineering Aspects 2012

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