The hottest synthesis of ultra-fine platinum nanow

The first synthesis of ultra-fine platinum nanowires with aspect ratio in China

Abstract: at present, the internationally synthesized platinum nanowires have some shortcomings, such as coarser diameter or smaller aspect ratio, and the yield can be generally added to the position of 2/3 of the oil tank window. The preparation of high-quality platinum nanowires with both ultra-fine diameter and high aspect ratio is still facing great challenges. Recently, the advanced invention research group, Professor of the school of environmental and chemical engineering, Yanshan University, used the linear structure of insulin fibers and specific active groups to induce the synthesis of ultra-fine and ultra-long platinum nanowires with a diameter of only 1.8nm and an aspect ratio greater than 104. This is the first time in the world to synthesize such a large aspect ratio. In recent years, Chinese plastic machinery enterprises have expanded their efforts to open up ultra-fine platinum nanowires in emerging markets of extruders

metallic platinum has excellent properties and wide applications, but its resources are very limited. In order to solve this problem, nano platinum is used to improve its performance and reduce its dosage. Platinum nanowires exhibit high catalytic activity due to their large length diameter, mechanical wear ratio, fewer defect sites, fewer grain boundaries and more surface atoms, which can greatly reduce the amount of platinum catalyst. They have a very broad application prospect in the fields of fuel cells, biosensors, petrochemical industry and so on. Therefore, synthesizing high-quality platinum nanowires and maximizing the cost performance of platinum catalysts have become the focus of scientific research and industrial competition in the world

however, at present, the internationally synthesized platinum nanowires have some shortcomings, such as coarser diameter or smaller aspect ratio, low yield, and the preparation of high-quality platinum nanowires with both ultra-fine diameter and high aspect ratio is still facing great challenges

in the research paper entitled "insulin starch fibers: an excellent platform for the controlled synthesis of ultra-fine and ultra long platinum nanowires with high electrocatalytic activity", the high invention research group developed a new method for the controlled synthesis of ultra-fine platinum nanowires based on biological protein molecules. This research has made new progress in the controllable synthesis and Performance Research of ultra-fine and ultra long platinum nanowires. The prepared ultra-fine platinum nanowires have been measured by cyclic voltammetry. The catalytic activity per unit area of methanol oxidation reaction is 18% higher than that of commercially available platinum carbon catalysts, showing excellent catalytic activity. They have broad application prospects in the fields of industrial catalysis, analysis and detection