Journal
MATERIALS LETTERS
Volume 283, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2020.128857
Keywords
Nanoparticles; XPS; Carbon materials; Ce addition; Direct synthesis; Hydrogen peroxide
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The novel Pd-Ce/AC catalyst demonstrated higher H2O2 productivity and lower hydrogenation capacity compared to Pd/AC catalyst, likely attributed to the reduction in Pd particle size and enhancement of Pd2+ content by the addition of Ce.
In this study, a novel catalyst, Pd-Ce/AC catalyst, was synthesized for direct synthesis of H2O2. Compared with Pd/AC catalyst, Pd-Ce/AC catalyst showed higher H2O2 productivity (89 mol H2O2/kgcat.h) and lower H2O2 hydrogenation capacity. The characterization results indicated that the addition of Ce not only reduced the diameter of Pd particles, but also enhanced the content of Pd2+ in the final catalyst. It is expected that the increase of Pd dispersion and Pd2+ content is important for the enhancement of H2O2 productivity. (C) 2020 Elsevier B.V. All rights reserved.
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