两步水热法制备镍铁双金属MOF衍生物的方法及其应用
A two-step hydrothermal method was used to prepare nickel-iron bimetallic MOF derivatives, which solved the problem of phase separation in one-step synthesis of nickel-iron bimetallic MOF derivatives. This method achieved uniform dispersion of metal particles and well-developed pore structure, thereby improving catalytic activity and resistance to carbon deposition. It is suitable for catalytic reforming of waste plastic pyrolysis tar to produce hydrogen.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, nickel-iron bimetallic MOF derivatives are prone to phase separation during one-step synthesis, resulting in uneven metal distribution, increased particle size, underdeveloped pore structure, low accessibility of active sites, and affecting catalytic activity and anti-carbon deposition ability.
Nickel-iron bimetallic MOF derivatives were prepared using a two-step hydrothermal method. First, a first metal-organic framework precursor was prepared, then it was hydrothermally reacted with a second metal salt and an organic ligand, and finally it was carbonized and reduced at high temperature to form a foam-like hierarchical porous carbon framework structure. The nickel-iron alloy nanoparticles were uniformly dispersed and encapsulated by the carbon layer.
It significantly improves the specific surface area and accessibility of active sites of the catalyst, enhances the hydrogen yield and anti-carbon deposition performance of hydrogen production from waste plastic pyrolysis tar reforming, and has good catalytic stability.
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Figure CN122076443B_ABST