Synthesis and characterization of Au, Pt supported on graphene aerogel catalysts for CO oxidation at low temperature

Chuyen Phan Thi, Hang Tran Thi Thanh, Phong Pham Nam, Ha Vu Thi Thu

Abstract


Au, Pt supported on graphene aerogel catalysts (PtAu/rGOA) with molar ratio of Pt and Au of 1:1, and total metal concentration of 5 % were successfully synthesized by hydrothermal method.  The obtained catalysts were characterized by Raman, XRD, XPS, HR-TEM, BET. It revealed that Au and Pt nanoparticles with average size of 3 – 5 nm were highly dispersed on aerogel graphene. The activity of these catalysts was tested  in CO oxidation. The results showed that the conversion of CO at ambient temperature was 100% during 25 minutes. Accordingly, PtAu/rGOA could be considered as a potential catalysts for CO oxidation at low temperature.


Keywords


Aerogel graphene; PtAu/rGOA; CO oxidation ambient temperature

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References


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DOI: https://doi.org/10.51316/jca.2022.018

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