摘要:
Methods, compositions, and biomimetic catalysts, such as silicateins and block copolypeptides, used to catalyze and spatially direct the polycondensation of silicon alkoxides, metal alkoxides, and their organic conjugates to make silica, polysiloxanes, polymetallo-oxanes, and mixed poly(silicon/metalklo)oxane materials under environmentally benign conditions.
摘要:
A method of making a metal oxide nanoparticle comprising contacting an aqueous solution of a metal salt with an oxidant. The method is safe, environmentally benign, and uses readily available precursors. The size of the nanoparticles, which can be as small as 1 nm or smaller, can be controlled by selecting appropriate conditions. The method is compatible with biologically derived scaffolds, such as virus particles chosen to bind a desired material. The resulting nanoparticles can be porous and provide advantageous properties as a catalyst.
摘要:
The invention concerns a method for forming catalytic sites at the surface of a support, which consists in: depositing on said surface a liquid film (3) containing elements (4) of a living matter, capable of moving when subjected to an electric and/or magnetic field and designed to form catalytic traces or alterations at the surface of the substrate; applying an electric and/or magnetic field to said film such that, under the effect of the field, at least some of said living matter elements move and assemble on zones of the substrate surface; and eliminating the liquid film and the living matter at the substrate surface while allowing the traces left by said living element at the substrate surface to subsist so as to constitute said catalytic sites at the locations of said traces.
摘要:
The invention relates to the use of organic materials such as plants and sea or land animal shells containing alkali or alkaline-earth metals, preferably calcium, for implementing chemical reactions.
摘要:
The invention relates to the use of products derived from ash from plants that accumulate metals from the platinum group (platinoids) for use in chemical reactions.
摘要:
Methods, compositions, and biomimetic catalysts, such as silicateins and block copolypeptides, used to catalyze and spatially direct the polycondensation of silicon alkoxides, metal alkoxides, and their organic conjugates to make silica, polysiloxanes, polymetallo-oxanes, and mixed poly(silicon/metalklo)oxane materials under environmentally benign conditions.