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Electro‐oxidation of Methanol and Ethanol Catalyzed by Pt/ZSM‐5/C
Author(s) -
Daas Basu Maan,
Ghosh Susanta
Publication year - 2017
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201700235
Subject(s) - platinum , chronoamperometry , cyclic voltammetry , catalysis , tafel equation , methanol , linear sweep voltammetry , chemistry , inorganic chemistry , platinum nanoparticles , adsorption , voltammetry , electrocatalyst , alcohol fuel , electrochemistry , electrode , organic chemistry
Direct alcohol fuel cells are a promising source of future energy generation for small and portable devices. Platinum is considered the best catalyst for electro‐oxidation of alcohols in fuel cells but the major hurdles with platinum catalysts are high cost of platinum as well as low selectivity, slow reaction kinetics and carbonaceous poisoning associated with platinum. This particular research reports electro‐oxidation of methanol and ethanol over platinum electrodeposited on ZSM‐5 without any carbon additive. From the cyclic voltammetry and chronoamperometry, linear sweep voltammetry, tafel plot and multiple scan analyses, it is found that Pt/ZSM‐5/C electrodes can catalyze electro‐oxidation of methanol and ethanol with higher efficiency. ZSM‐5 supports the formation of smaller sized platinum nanoparticles in a dispersed manner on the zeolite support and thus increases the active surface area of the metal for catalytic activity. It favors adsorption of alcohol molecules on the modified electrode surface and thus increases the diffusion process. It also stabilizes the modified electrodes.