Nanostructured mesoporous

Guo Y-G, Hu YS, Sigle W, Maier J. Superior electrode performance of nanostructured mesoporous TiC>2 (anatase) through efficient hierarchical mixed conducting networks. Adv Mater 2007 19(16) 2087-91. 

Nanostructured Li and Ni containing nickel-metal hydride batteries are widely used in cell phones, video camcorders, quartz watches, and pacemakers to name a few uses. Electrically conducting nanostructured mesoporous materials are envisaged as new materials for fuel cell applications, batteries, and ultracapacitors. 

Synthesis and characterization of nanostructured mesoporous zirconia catalyst supports using non-ionic surfactants as templating agents... 

Vallet-Regi, M. 2010. Nanostructured mesoporous silica matrices in nanomedicine. J. Int. Medicine 267 22-43. 

Wang MJ, Coffer JL, Dorraj K, Hartman PS, Loni A, Canham LT (2010b) Sustained antibacterial activity from triclosan-loaded nanostructured mesoporous silicon. Mol Pharm 7(6) 2232-2239. doi 10.1021/mp 100227m... 

Peterson KE (1982) Silicon as a mechanical material. Proc IEEE 70(5) 420 Phalippou J et al (1989) Fracture toughness of silica aerogels. Revue De Phys Appl C4(24) 191-196 Populaire CH et al (2003) On mechanical properties of nanostructured mesoporous silicon. Appl Phys Lett 83 1370... 

Nandhakumar 1, Elliott JM, Attard GS. Electrodeposition of nanostructured mesoporous selenium films (H[-eSe). Chem Mater 2001 13 3840-2. 

Idakieva, V, Ilieva, L., Andreeva, D., et al. (2003). Complete Benzene Oxidation over Gold-vanadia Catalysts Supported on Nanostructured Mesoporous Titania and Zirconia, App/. Catal. A.- Gen., 243, pp. 25-39. 

Schaming D, Renault C, Tucker RT, Lau-Truong S, Aubard T, Brett MJ, Balland V, limoges B (2012) Spectroelectrochemical characterization of small hemoproteins adsorbed within nanostructured mesoporous fTO electrodes. Langmuir 28 14065-14072... 

Pal U, Kim CW, Jadhav NA, Kang YS (2009) Ultrasound-assisted synthesis of mesoporous ZnO nanostructures of different porosities. J Phys Chem C 113(33) 14676-14680... 

Sarkar, A., Biswas, S.K. and Pramanik, P. (2010) Design of a new nanostructure comprising mesoporous Zr02 shell and magnetite core (Fe304 mZr02) and study of its phosphate ion separation effidency. Journal of Materials Chemistry, 20 (21), 4417—4424. 

Bare CuOx-supported nanostructures showed some activity in H 2 production from methanol-water mixture under UV-visible irradiation [180]. Ni is also used as a dopant, and small amounts (1 wt.%) of this element in mesoporous titania guarantee good activity in water-methanol mixtures under UV-visible light [181]. Indium-tantalum oxide Ni-doped materials also provided photocatalysts with promising efficiencies for direct water splitting [182]. TiOz nanotubes doped with Ir and Co nanopartides were effective for visible light water splitting even in the absence of... 

Bharathi, S., Nataraj, D., Mangalaraj, D., Masuda, Y., Senthil, K. and Yong, K. (2010) Highly mesoporous 0t-Fe2O3 nanostructures preparation, characterization and improved photocatalytic performance towards Rhodamine B (Rh B). journal of Physics D Applied Physics, 43, 015501. 

Nucleic acids, DNA and RNA, are attractive biopolymers that can be used for biomedical applications [175,176], nanostructure fabrication [177,178], computing [179,180], and materials for electron-conduction [181,182]. Immobilization of DNA and RNA in well-defined nanostructures would be one of the most unique subjects in current nanotechnology. Unfortunately, a silica surface cannot usually adsorb duplex DNA in aqueous solution due to the electrostatic repulsion between the silica surface and polyanionic DNA. However, Fujiwara et al. recently found that duplex DNA in protonated phosphoric acid form can adsorb on mesoporous silicates, even in low-salt aqueous solution [183]. The DNA adsorption behavior depended much on the pore size of the mesoporous silica. Plausible models of DNA accommodation in mesopore silica channels are depicted in Figure 4.20. Inclusion of duplex DNA in mesoporous silicates with larger pores, around 3.8 nm diameter, would be accompanied by the formation of four water monolayers on the silica surface of the mesoporous inner channel (Figure 4.20A), where sufficient quantities of Si—OH groups remained after solvent extraction of the template (not by calcination). 

Nanostructured silica and ordered mesoporous silicas have been envisaged as small enzyme immobilization supports [196]. The encapsulation approach is required either to further immobilize enzymes adsorbed in the channels by reducing the pore opening by further silylation or by encapsulating the enzyme directly [197]. 

In general, the reports describing the performance of DSSCs based on mesoporous Ti02 by either method are consistent regarding the positive effect of applying nanostructured Ti02 films. 

Lancelle-Beltran, E. Prene, P Boscher, C. Belleville, R Buvat, P Lambert, S. Guillet, F. Boissiere, C. Grosso, D. Sanchez, C. 2006. Nanostructured hybrid solar cells based on self-assembled mesoporous titania thin films. Chem. Mater. 18 6152-6156. 

This review will discuss the possibility to control and improve the reactivity of Titania by design of new tailored nano-architecture. Specifically, analyses quasi-ID Ti02 nanostructures, e.g. nanorods, nanowires and nanofibres, nanotubes and nanopillars. 2D Titania nanostructures, e.g. columnar-type films, ordered arrays of nanotubes or nano-rods/-wires, nanobowl array, nanomembranes (called also nanohole array) and nanosponge, and Ti-based ordered mesoporous matrices will be instead discussed in a consecutive review paper. 

When these ID nanocrystals are deposited on a surface, typically a random direction exists for the elongating axis of each ID nanocrystal. However, if the preparation method leads to an alignment of the elongating axis in one single direction, e.g. when an ordered array is present, quasi-2E) nanostructures are present. This class of nanostructured Titania thin film may be extended to include also ordered mesoporous Titania membranes, e.g. when the pores are aligned in one single direction. 

We also include in this class of quasi-2D nanostructured materials Titania deposited inside ordered mesoporous silica (because an inner coating of mesoporous silica may be realized), or nano-dot type Titania particles well dispersed in the ordered porous matrix. We do not consider here solids which contain linear or zig-zag type TiOTiO-nanowires in a microcrystalline porous framework, such as ETS-4 and ETS-10, notwithstanding the interest of these materials also as photocatalysts,146-151 because these nanowires are located inside the host matrix, and not fully accessible from the gas reactants (the reactivity is essentially at pore mouth). 

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