Porous carbon carrier passivation method

• Main Authors: LIU ZHUO, CHEN JINGPENG, CHENG JIAYAO, SU FANGYUAN, KONG QINGQIANG, CHEN CHENGMENG
• Format: Patent
• Language: Chinese; English
• Published: 26.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention belongs to the technical field of catalyst porous carbon carriers, and particularly relates to a passivation method of a porous carbon carrier. Phosphorus, boron and nitrogen elements are added in the passivation process of the porous carbon carrier, and on the basis of the total weight of the porous carbon, the content of the boron element is 0-10% of the total weight, the content of the phosphorus element is 0-10% of the total weight, and the content of the nitrogen element is 0-5% of the total weight. The added boron, phosphorus, nitrogen and other heteroatoms can obviously prolong the service life of the carbon carrier of the catalyst, improve the high-temperature corrosion resistance of the carbon carrier, reduce the reaction activity of the carbon carrier and oxygen free radicals, and passivate active groups on the surface of the porous carbon carrier. After the porous carbon carrier is passivated, the cycle life of the carbon carrier can be prolonged by 50%. 本发明属于催化剂多孔炭载体技术领域，具体涉及一种多孔炭载体的