LEAL, GEORGIA B.SILVA, DANIELA C.L. daWATACABE, BEATRIZ N.CIOTTI, LIGIAANTONIASSI, RODOLFO M.GIUDICI, REINALDOLINARDI, MARCELOVAZ, JORGE M.SPINACE, ESTEVAM V.2020-02-212020-02-212019LEAL, GEORGIA B.; SILVA, DANIELA C.L. da; WATACABE, BEATRIZ N.; CIOTTI, LIGIA; ANTONIASSI, RODOLFO M.; GIUDICI, REINALDO; LINARDI, MARCELO; VAZ, JORGE M.; SPINACE, ESTEVAM V. Au/TiO2 catalysts prepared by borohydride reduction for preferential CO oxidation at near-ambient temperature. <b>Catalysis for Sustainable Energy</b>, v. 6, n. 1, p. 6-12, 2019. DOI: <a href="https://dx.doi.org/10.1515/cse-2019-0002">10.1515/cse-2019-0002</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/30820.2084-6819http://repositorio.ipen.br/handle/123456789/30820Au nanoparticles were prepared in solution using HAuCl4.3H2O as Au precursor, sodium citrate as stabilizing agent and sodium borohydride as reducing agent. The influence of synthesis parameters such as BH4:Au and Citrate:Au ratios were studied. In a further step, the stabilized Au nanoparticles were supported on TiO2 with different Au loadings (wt%). The resulting Au/ TiO2 catalysts were characterized by Energy-dispersive X-ray spectroscopy, X-ray diffraction and Transmission Electron Microscopy and tested for the preferential oxidation of carbon monoxide in hydrogen-rich stream. Au nanoparticles stabilized in solution were obtained with sizes in the range of 3-4 nm. After supported on TiO2, the Au nanoparticles size did not change and the Au/TiO2 catalysts exhibited excellent performance and stability in the temperature range of 20 - 50 °C.6-12openAccessgoldhydrogennanoparticlescarbon monoxidetitanium oxidesborohydridesreductioncatalystsArtigo de periódico1610.1515/cse-2019-00020000-0002-7011-8261https://orcid.org/0000-0002-7011-8261https://orcid.org/0000-0003-0105-6519Sem PercentilSem Percentil CiteScore