Nanostructured sorbent materials

The past two decades have witnessed major advances in new nanostructured sorbent materials including... 

Synthesis of Nanostructured Sorbent Materials Using Supercritical Fluids... 

Very recently, Broda and Muller [87] extended the carbon sol-gel technique first reported by Pekala [88] to synthesize Al203-stabilized, CaO-based CO2 sorbents with a hierarchical pore structure. It was argued that by nanostructuring the material, diffusive limitations of the carbonation reaction could be avoided. Here, a carbon gel acted as a template for pores in the small micrometre range. A schematic sketch of the different steps of the synthesis protocol is shown in Fig. 6.31. In the first step, formaldehyde was added to an aqueous solution of resorcinol to obtain a molar ratio of resorcinol to formaldehyde of 1 2. Subsequently, an... 

The production of nanostructured carbon materials by hydrothermal processes from natural precursors is one of the most attractive subjects in material science today. Carbon materials prepared from hydrothermal process are currently being used in various fields of research including environmental, electrical, chemical, and biomedical fields. In environmental application, carbon is mainly used as a sorbent material for the removal of heavy metal ions (CrO/, Pb +, and Cd +) from water and wastewater [116,117]. Carbon nanocoils prepared from saccharides (sucrose, glucose, and starch) with a support of Pt/Ru nanoparticles exhibit a high catalytic activity for the electro-oxidation of methanol in an acid medium [150]. Similarly, electro-oxidation of ethanol and methanol was carried out with electro catalysts, such as Pd/CHC (coin-like hollow carbon), Pt/ HCS (hard carbon spherules), and Pt/Pd/CMS (carbon microspheres) in acidic and alkaline media... 

Boron nitride nanostructures have drawn attention for their storage potential. Hydrogen storage in various nanoporous sorbent materials has been a subject of considerable interest. A primary advantage of these materials is their ease of reversibility [146]. This also creates a disadvantage because hydrogen is only weakly held within these materials, requiring low temperatures to achieve... 

Collagen, human body, 132-133 Combustion flame-chemical vapor condensation (CF-CVC) nanostructured materials, 10-11 schematic, 10 7T-Complexation sorbents description, 108-109 effects of cation, anion, and substrate, 112-113... 

Pore size, sorbent design, 87-88 Potential energy, adsorption, 81-83 Precipitation, nanostructured materials,... 

Sorbent Technology Table 6 Summary of hydrogen storage capacity of various nanostructured materials 2835... 

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