Preparation and characterization of Ni-Co-Mg-Al mixed oxides derived from layered double hydroxides and their performance in the dry reforming of methane

2016 ◽  
Author(s):  
Carole Tanios ◽  
Sandy Bsaibes ◽  
Mira Nawfal ◽  
Cedric Gennequin ◽  
Haingomalala Lucette Tidahy ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Mixed Oxides ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Double Hydroxides

Ni–Co catalyst derived from layered double hydroxides for dry reforming of methane

2015 ◽  
Vol 40 (46) ◽  
pp. 16115-16126 ◽  
Author(s):  
Xiaoqing Zhang ◽  
Chunhui Yang ◽  
Yanping Zhang ◽  
Yan Xu ◽  
Shuyong Shang ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Co Catalyst ◽  
Double Hydroxides

scholarly journals Synthesis and Characterization of Metal Mixed Oxides from Layered Double Hydroxides

2012 ◽  
Vol 1 ◽  
pp. 506-513 ◽  
Author(s):  
N. Balsamo ◽  
S. Mendieta ◽  
M. Oliva ◽  
G. Eimer ◽  
M. Crivello
Keyword(s):  
Layered Double Hydroxides ◽  
Mixed Oxides ◽  
Synthesis And Characterization ◽  
Double Hydroxides

Preparation of Zr-Containing Layered Double Hydroxides and Characterization of the Acido-Basic Properties of Their Mixed Oxides

2002 ◽  
Vol 14 (4) ◽  
pp. 1530-1538 ◽  
Author(s):  
Didier Tichit ◽  
Nigamananda Das ◽  
Bernard Coq ◽  
Robert Durand
Keyword(s):  
Layered Double Hydroxides ◽  
Mixed Oxides ◽  
Basic Properties ◽  
Double Hydroxides

scholarly journals Role of Mixed Oxides in Hydrogen Production through the Dry Reforming of Methane over Nickel Catalysts Supported on Modified γ-Al2O3

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 157
Author(s):  
Ahmed Sadeq Al-Fatesh ◽  
Mayankkumar Lakshmanbhai Chaudhary ◽  
Anis Hamza Fakeeha ◽  
Ahmed Aidid Ibrahim ◽  
Fahad Al-Mubaddel ◽  
...  
Keyword(s):  
Mixed Oxides ◽  
Nickel Catalysts ◽  
H2 Production ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Incipient Wetness Impregnation ◽  
Thermally Stable ◽  
Oxide Systems ◽  
Catalyst Systems ◽  
H2 Yield

H2 production through dry reforming of methane (DRM) is a hot topic amidst growing environmental and atom-economy concerns. Loading Ni-based reducible mixed oxide systems onto a thermally stable support is a reliable approach for obtaining catalysts of good dispersion and high stability. Herein, NiO was dispersed over MOx-modified-γ-Al2O3 (M = Ti, Mo, Si, or W; x = 2 or 3) through incipient wetness impregnation followed by calcination. The obtained catalyst systems were characterized by infrared, ultraviolet–visible, and X-ray photoelectron spectroscopies, and H2 temperature-programmed reduction. The mentioned synthetic procedure afforded the proper nucleation of different NiO-containing mixed oxides and/or interacting-NiO species. With different modifiers, the interaction of NiO with the γ-Al2O3 support was found to change, the Ni2+ environment was reformed exclusively, and the tendency of NiO species to undergo reduction was modified greatly. Catalyst systems 5Ni3MAl (M = Si, W) comprised a variety of species, whereby NiO interacted with the modifier and the support (e.g., NiSiO3, NiAl2O4, and NiWO3). These two catalyst systems displayed equal efficiency, >70% H2 yield at 800 °C, and were thermally stable for up to 420 min on stream. 5Ni3SiAl catalyst regained nearly all its activity during regeneration for up to two cycles.

scholarly journals LAYERED DOUBLE HYDROXIDES: NANOMATERIALS FOR APPLICATIONS IN AGRICULTURE

2015 ◽  
Vol 39 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Luíz Paulo Figueredo Benício ◽  
Rejane Alvarenga Silva ◽  
Júnia Aparecida Lopes ◽  
Denise Eulálio ◽  
Rodrigo Morais Menezes dos Santos ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Layered Double Hydroxides ◽  
Slow Release ◽  
Structural Characteristics ◽  
Synthesis Methods ◽  
Double Hydroxides ◽  
Near Future

The current research aims to introduce Layered Double Hydroxides (LDH) as nanomaterials to be used in agriculture, with particular reference to its use as storage and slow release matrix of nutrients and agrochemicals for plant growing. Structural characteristics, main properties, synthesis methods and characterization of LDH were covered in this study. Moreover, some literature data have been reported to demonstrate their potential for storage and slow release of nitrate, phosphate, agrochemicals, besides as being used as adsorbent for the wastewater treatment. This research aims to expand, in near future, the investigation field on these materials, with application in agriculture, increasing the interface between chemistry and agronomy.

Structural characterization of azoic dye hosted layered double hydroxides

2009 ◽  
Vol 224 (5-6) ◽  
Author(s):  
Sujata Mandal ◽  
Dan A. Lerner ◽  
Nathalie Marcotte ◽  
Didier Tichit
Keyword(s):  
Structural Characterization ◽  
Layered Double Hydroxides ◽  
Double Hydroxides
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