Template-assisted methods

Example 8 PPy Nanowires by Electrogenerated Template-Assisted Method ... 

The different preparation strategies introduced in this essay might give further ideas improving Me-N-C catalysts. It was shown that template-assisted methods working without additional carbon are beneficial in reaching high densities of active sites. 

Unlike hard templates (alumina, zeolites, etc.) which require many synthetic steps, surfactant templates may be a convenient alternative. The morphology of PANI and PPy (spheres, wires, flat films) can be modulated though the use of adsorbed surfactants aided by co-adsorbing molecules aligned nanowires of PANI produced by this template assisted method can be self-assembled over large areas for the improvement of microelectronic and sensor devices, as depicted in Fig. 1.11 [139]. 

Manganese oxide mesoporous materials were prepared by using template assisted method followed by an acidic treatment. The cerium addition to manganese oxide mesoporous stmcture was also studied. All the solids were characterized by XRD and specific surface area and pore size distributions were calculated from nitrogen sorption studies. XRD results suggested the formation of the Mn0x-Ce02 solid solution widi the fluorite-type stmcture. The BET surface area values and the pore size distributions allowed to conclude the important role of the surfactant by the creation of narrow mesopores in the material. 

Polymer Capsules via Template-Assisted Methods General Remarks... 

Thiols have also been used in an elaborate fashion to prepare spherical, hoUow Pd nanoparticles. Hyeon s group reported the fabrication of uniform hollow Pd spheres using thiols as stabilizers and sihca particles as templates [22]. The template-assisted method used (see Scheme 9.1) first involves the synthesis of uniform silica spheres which were then refluxed with mercaptopropyltrimethoxysilane in toluene in order to functionahze the sihca surface with mercaptopropylsilyl (MPS)... 

High quality one-dimensional copper sulfide (CuS) nanorods (50-200 nm) have been demonstrated using template assisted electrochemical deposition, a sonoelec-trochemical method. Thus generated nanorods were also electrically characterized as p-type semiconductors [64]. In this process, ultrasound assists the electrochemical deposition by the combination of any of the following three processes ... 

The phosphorus macrocycles are made via template condensation of coordinated polyphosphine ligands and a dibromoalkane (equation 8).60 A more recently reported method involves a template-assisted single-stage ring closure (equation 9).61 The arsenic donor macrocycles are synthesized by reacting lithiated polyarsanes with a dichloroalkane (equation 10).62... 

Nano-materials in lithium ion battery electrode design, presentation of a plasma-assisted method to create a carbon replica of an alumina template membrane... 

There exist a variety of methods to synthesize quasi-one-dimensional nanostructured materials, which include but not limited to vapor phase growth, template-assisted synthesis, sol-gel deposition, surfactant-assisted growth, sonochemical method, hydrothermal method, and electrochemical deposition [21], Among the various methods, the electrochemical anodization method is one of the simplest and cheapest methods to synthesize ordered quasi-one-dimensional nanostructure. 

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