Abstract
Three-dimensional flexible Pt-promoted graphene aerogel monolith is developed through a one-step solvothermal process as a versatile catalyst for removal of CO, HCHO, and C2H4 at room temperature. In this synthesis, ethylene glycol was employed as both the reducing agent and the solvent which could accelerate the in situ reduction of GO and metal ions during the solvothermal process, leading to the assembly and cross-linking of GO to form a three-dimensional (3D) network. Therefore, the obtained Pt-promoted graphene aerogel monolith exhibits an interconnected, honeycomb-like 3D porous framework with highly dispersed Pt (0) species, making it ideal for catalytic oxidation. Such monolith shows a high performance for the catalytic oxidation of CO, HCHO, and C2H4, with 100% conversion at room temperature, with an excellent stability longer than 72 h. These results demonstrate that the flexible Pt-promoted graphene aerogel monolith gives significance on catalytic oxidation, which could be applied in eliminatin...
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