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Pd‐Al/AC Catalysts for Direct Synthesis of H 2 O 2 with High Productivity
Author(s) -
Liang Wuyang,
Dong Jinfeng,
Yao Mengqin,
Fu Jinsong,
Chen Honglin,
Zhang Xiaoming
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202003291
Subject(s) - catalysis , bimetallic strip , activated carbon , dispersion (optics) , hydrogen peroxide , adsorption , carbon fibers , nuclear chemistry , chemistry , materials science , inorganic chemistry , organic chemistry , composite material , composite number , physics , optics
In this study, activated carbon (AC) supported Pd and PdAl bimetallic catalysts were prepared and tested for direct synthesis of hydrogen peroxide (H 2 O 2 ). The PdAl/AC catalyst showed higher H 2 O 2 productivity (80 mol H 2 O 2 kg −1 cat h −1 ) than Pd/AC catalyst. The characterization results indicated that the addition of Al not only enhanced the content of Pd II , but also increased the dispersion of Pd. In PdAl/AC catalysts, Pd was finely dispersed on carbon surface and consisted entirely of the adsorbed PdCl 2 . It is expected that the increase in the dispersion of Pd and the content of Pd II in the fresh catalyst is critical for the improvement of H 2 O 2 production.