Preparation method and application of MXene-based special catalyst for non-methane total hydrocarbon analysis

The invention particularly relates to a preparation method and application of a MXene-based special catalyst for non-methane total hydrocarbon analysis, and belongs to the technical field of catalytic environmental protection, and the preparation method comprises the following steps: obtaining an MAX phase material and a transition metal salt; mixing the MAX phase material with transition metal salt, and performing grinding and first roasting to obtain a prefabricated compound; adding acid into the prefabricated compound, stirring, and performing first drying to obtain a dried compound; obtaining a Pd precursor solution; and mixing a Pd precursor solution with the dried compound, and sequentially performing dipping, secondary drying and secondary roasting to obtain the MXene-based special catalyst for non-methane total hydrocarbon analysis. The MXene-based special catalyst for non-methane total hydrocarbon analysis prepared by the steps has excellent catalytic activity, the non-methane total hydrocarbon remov