Method for preparing one-dimensional alloy nanometer wire

Abstract

The invention relates to a method for preparing a one-dimensional alloy nanometer wire. A chloroformic solution of hexadecyl trimethyl ammonium bromide (abbreviated as CTAB), an aqueous solution of chloroplatinic acid or platinichloride and soluble salt, sylvite, sodium salt or an acidic solution of Ni, Pd, Au, Pb, Fe and Ru metallic ions are injected into a flask and are subjected to mechanical or magnetic stirring; after the solution is evenly mixed, the solution is added with a sodium borohydride solution for reduction, and the mixture is continuously stirred for certain time to obtain thecorresponding alloy nanometer wire. The whole preparation process is convenient to operate, can be used for preparing various kinds of the alloy nanometer wires and can realize batch production. The method realizes large-scale preparation of the one-dimensional Pt-M(M=Ni, Pd, Au, Pb, Fe and Ru) alloy nanometer wire. The method has simple operation and low cost; the diameter of the obtained alloy nanometer particle is between 1.5 and 4 nm; and the alloy nanometer particle has large specific surface and thus has high application value in the field of catalysts and other fields.

Description

A kind of preparation method of one-dimensional alloy nanowire technical field The invention relates to a method for preparing alloy nanoparticles, in particular to a method for preparing one-dimensional Pt-M (M=Ni, Pd, Au, Pb, Fe, Ru) alloy nanowires. technical background The application of one-dimensional noble metal Pt-M (M=Ni, Pd, Au, Pb, Fe, Ru) alloy nanoparticles in fuel cell catalysis, optics, magnetic storage, biomedicine and other fields has attracted great attention. Especially in fuel cell catalysis, Pt-M (M=Ni, Pd, Au, Pb, Fe, Ru) alloy nanoparticles have shown many advantages, such as higher catalytic activity, longer catalytic life, and more low cost etc. But so far, the reports on the preparation and synthesis of one-dimensional Pt-M alloy nanoparticles are limited to the template method, but the output of the template method is limited, and the operation process is complicated, the preparation cost is high, and the diameter of the obtained nanowires is g...

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Problems solved by technology

But so far, the reports on the preparation and synthesis of one-dimensional Pt-M alloy nanoparticles are limited to the template method, but the output of the template method is limited, and the operation process is complicated, the preparation cost is high, and the diameter of the obtained nanowires is generally greater than 20nm. low, thus greatly limiting its catalytic performance