Resumen: The shape and porous configuration of supports are key parameters to design outstanding catalysts. However, the selection of a proper mesoporous support, such as SBA-15, by itself does not guarantee accessibility to catalytic sites. The distribution of the active phase and its stability are strongly related to the procedure used to deposit it on the catalytic substrate. Herein, we have prepared rod-shaped SBA-15 silica supports functionalized with amine groups to facilitate the electrostatic attraction and a good distribution of the resulting Pt-based catalytic nanoparticles along the pore walls. Additionally, the use of tetrakis-(hydroxymethyl)-phosphonium chloride (THPC) as both reductant and stabilizer is presented as a novel alternative for Pt nanoparticle synthesis. The behaviour of this catalyst in the total oxidation of n-hexane demonstrates high activity and excellent stability after 70 h on reaction stream. STEM-HAADF and 3-D tomography were used to confirm the presence of the metallic nanoparticles within the mesochannels and to corroborate their reduced sintering after reaction. Idioma: Inglés DOI: 10.1016/j.catcom.2017.06.022 Año: 2017 Publicado en: CATALYSIS COMMUNICATIONS 100 (2017), 93-97 [17 p.] ISSN: 1566-7367 Factor impacto JCR: 3.463 (2017) Categ. JCR: CHEMISTRY, PHYSICAL rank: 56 / 146 = 0.384 (2017) - Q2 - T2 Factor impacto SCIMAGO: 0.929 - Chemistry (miscellaneous) (Q1) - Process Chemistry and Technology (Q1) - Catalysis (Q2)