نتایج جستجو برای: nanoporous materials
تعداد نتایج: 440024 فیلتر نتایج به سال:
The characteristics of nanoporous inorganic coatings on implants or on implantable devices are reviewed. The commonly used nanoporous materials, such as aluminum oxide (Al(2)O(3)), titanium oxide (TiO(2)) and porous silicon are highlighted with illustrative examples. The critical issues for sustained release systems are examined and the elution profiles of nanoporous coatings are discussed. The...
The oxygen evolution reaction (OER) is a critical reaction in energy storage and conversion systems such as metal-air batteries and water splitting. The current commercial OER catalysts are the noble metal based materials, which have a high cost and a limited supply. Xu et al have prepared the nanoporous N-Co3O4 materials as cost-effective and high efficient electrocatalysts for OER by N2 plasm...
The role of the electrode nanoporosity in electroanalytical processes is discussed and specific phenomena (slow double layer charging, local pH effects) which can be present in porous electrode are described. Hierarchical porous carbon (HPC) materials are synthesized using a hard template method. The three dimensional carbon porosity is examined using scanning electron microscopy on flat surfac...
If people could shrink themselves down and enter the world of nanoporous materials—solid materials like activated carbon or porous glasses that have pores of nanometer size—they would encounter exotic phenomena that were quite unexpected on the basis of everyday experience. Even thermodynamic properties thought of as constant such as the freezing point of water can be markedly depressed when fl...
We present here the computational chemistry methods our group uses to investigate the physical and chemical properties of nanoporous materials and adsorbed fluids. We highlight the multiple time and length scales at which these properties can be examined and discuss the computational tools relevant to each scale. Furthermore, we include the key points to considerupsides, downsides, and possibl...
Block copolymers constitute a fascinating set of self-assembled materials exhibiting compositional heterogeneities on the nanometer length scale. While traditionally employed as thermoplastic elastomers, asphalt modifiers, and adhesives, the potential of self-assembled block copolymers for nanotechnological applications has been realized in the past decade and many examples have now appeared in...
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