A research team in Italy has recently converted the lowest value by-product of waste-tire pyrolysis into a highly efficient oxygen reduction (ORR) catalyst for alkaline fuel cells and metal-air batteries. Related papers were published in the "Power Magazine".
Currently, about 1.5 billion waste tires are produced each year, and only 2.6 million tons of used tires are produced in Europe. More than 80% of the world's waste tire products are concentrated in a few countries and regions, such as the United States, the European Union, China, India and Japan, which have implemented strict agreements and regulations.
Heat treatments, such as pyrolysis, have been developed as effective strategies for useful chemicals in tire recycling equipment , typically in the form of fuel or recovered from used tires. The researchers demonstrated that a simple post pyrolysis heat treatment can be used to produce materials with high activity for electrocatalytic oxygen reduction (ORR).
Previously, Chinese scientists succeeded in preparing cheap and efficient electrolyzed water and oxygen evolution catalysts, and promoted the continuous rise of related industrial chain companies. The Italian experimental results not only use waste tires to be converted into high-efficiency catalysts, but also can reuse used tires. It will have a stimulating effect on the tire plate.
The working part consists of a high-speed rotating grinding disc and a fixed grinding disc. Second, the PM grinding disc series grinding machine has the following advantages: 1. Short material passing time, less heat generation, optimal grinding equipment for heat sensitive materials such as PE. 2 The grinding disc gap can be adjusted to facilitate the control of the fineness of the discharge. 3. The grinding disc is made of high quality mold steel and can be repeatedly repaired. 4. High output, low energy consumption, easy operation, etc. The working part consists of a high-speed rotating grinding disc. And a fixed grinding disc consists. Second, PM grinding disc series grinding machine has the following advantages: 1, material passing time is short, generating less heat, PE and other heat sensitive materials of the best grinding equipment. 2, grinding disc gap can be adjusted, convenient Control the fineness of discharge. 3. Grinding disc is made of high quality mold steel, which can be repeatedly repaired. 4. High output, low energy consumption and easy operation.