Jump to main content
Jump to site search

Issue 3, 2020
Previous Article Next Article

Lower methane combustion temperature on palladium nanoparticles anchored on TiOx subnano-islets in stellate mesoporous silica nanospheres

Author affiliations

Abstract

Palladium oxide nanoparticles of 9 nm stabilized on TiOx subnano-islets (SNI) in monodispersed mesoporous silica nanospheres (MSN) having a stellate morphology are found to be very active for methane combustion. The characterization at various steps of the catalysts elaboration was performed using a panel of techniques including transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and UV-visble reflectance spectroscopy. The catalytic performances were measured from methane combustion light-off experiments showing a remarkably low temperature light-off (T10% ∼ 200 °C) of these particles in comparison to PdO nanophase on 2D TiOx anchors (T10% ∼ 280 °C) or those obtained without TiOx anchors (T10% ∼ 350 °C). The surprising performance of these new catalysts is attributed to a combination of parameters along with the stellate pore morphology likely favorable for high conversion and a diffusion-controlled regime.

Graphical abstract: Lower methane combustion temperature on palladium nanoparticles anchored on TiOx subnano-islets in stellate mesoporous silica nanospheres

Back to tab navigation

Supplementary files

Article information


Submitted
07 Sep 2019
Accepted
28 Nov 2019
First published
28 Nov 2019

New J. Chem., 2020,44, 906-919
Article type
Paper

Lower methane combustion temperature on palladium nanoparticles anchored on TiOx subnano-islets in stellate mesoporous silica nanospheres

R. Dardouri, R. M. Navarro Yerga, N. Mota, B. Albela, L. Bonneviot and M. S. Zina, New J. Chem., 2020, 44, 906
DOI: 10.1039/C9NJ04554F

Social activity

Search articles by author

Spotlight

Advertisements