• 专利标题:   Porous carbon support used as catalyst for fuel cell, has specific surface area of pores, and thickness using adsorption isotherm method based on t-plot method based on Harkins-Jura equation.
  • 专利号:   WO2023277596-A1, KR2023004329-A, KR2023070196-A, KR2534521-B1
  • 发明人:   KIM G M, PARK J H, KIMGIMIN, PARKJAEHYUN
  • 专利权人:   CARBON STUDIO INC
  • 国际专利分类:   C01B032/05, H01M004/90, H01M004/92, C01B032/15
  • 专利详细信息:   WO2023277596-A1 05 Jan 2023 C01B-032/05 202306 Pages: 35
  • 申请详细信息:   WO2023277596-A1 WOKR009371 30 Jun 2022
  • 优先权号:   KR085990, KR085991, KR079934

▎ 摘  要

NOVELTY - Porous carbon support has a surface area of pores with a size 0-2 nm obtained in 100-300 m2/g, and thickness (t) of 0.35-0.4 nm using the adsorption isotherm method based on the t-plot method based on the Harkins-Jura equation. The surface area of pores with a size of 2-5 nm obtained by the adsorption isotherm method based on the Barrett-Joyner-Halenda (BJH) desorption method based on the Harkins-Jura equation is 100-800 m2/g. USE - The porous carbon support is used as catalyst for a fuel cell (claimed). ADVANTAGE - The porous carbon support has micropores which is capable of efficiently supporting metal particles such as platinum and has high crystallinity, provides a fuel cell catalyst with improved stability and durability using the porous carbon support, achieve high efficiency and low cost. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) (1) a method for producing the porous carbon support, involving (a) heat-treating the carbon raw material at 1500-3000° C to remove impurities and crystallize, (b) pretreating the crystallized carbon raw material in an atmosphere containing at least one heterogeneous element selected from boron, carbon, nitrogen, oxygen, phosphorus, and sulfur to introduce an activation site doped with the heterogeneous element, (c) activating the carbon source by mixing an additive including an organic surfactant with the carbon source into which the activation site is introduced and then removing the heterogeneous element through heat treatment, and (d) washing and drying the activated carbon raw material; and (2) (2) a catalyst comprising metal particles containing platinum are supported on the porous carbon carrier.