Open AccessStructural, morphological and catalytic characteristics of nanostructured palladium catalysts
Author(s) -
Polina Pushankina,
I. S. Lutsenko,
Iana S. Glazkova,
Timofey Malkov,
M A Mukhanov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2086/1/012203
Subject(s) - catalysis , palladium , nanomaterial based catalyst , materials science , electrochemistry , chemical engineering , methanol , hydrogen , inorganic chemistry , electrode , chemistry , organic chemistry , engineering
A new method for the highly active palladium catalyst synthesis on the surface of a Pd-23%Ag film has been developed to increase the material activity with respect to reactions involving hydrogen. Comparison of the electrochemical experiments data of classical palladium black and a new developed nanocatalyst demonstrated a significant increase in catalytic activity in the methanol oxidation reaction (up to 17.09 μA cm −2 ) for electrodes modified with the latter catalyst. The reason for that is an increase in the number of localized potentially more active surface regions due to the creation of a larger number of active sites in comparison with spherical particles. Estimation of resistance to CO poisoning showed high efficiency of nanocatalysts. Chronoamperometric experiment established the long-term stability and activity of the developed catalyst and confirmed the possibility of its practical use.