Open AccessSynthesis and characterization of Au, Pt supported on graphene aerogel catalysts for CO oxidation at low temperature
Author(s) -
Chuyen Phan Thi,
Hang Tran Thi Thanh,
Phong Pham Nam,
Ha Vu Thi Thu
Publication year - 2021
Publication title -
xúc tác và hấp phụ
Language(s) - English
Resource type - Journals
ISSN - 0866-7411
DOI - 10.51316/jca.2022.018
Subject(s) - aerogel , catalysis , graphene , raman spectroscopy , materials science , x ray photoelectron spectroscopy , molar ratio , chemical engineering , metal , nanoparticle , hydrothermal circulation , inorganic chemistry , nanotechnology , chemistry , metallurgy , organic chemistry , physics , engineering , optics
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.