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Synergetic Behavior of TiO 2 ‐Supported Pd( z )Pt(1− z ) Catalysts in the Green Synthesis of Methyl Formate
Author(s) -
BaldovinoMedrano Víctor G.,
Pollefeyt Glenn,
Bliznuk Vitaliy,
Van Driessche Isabel,
Gaigneaux Eric M.,
Ruiz Patricio,
Wojcieszak Robert
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201501211
Subject(s) - catalysis , x ray photoelectron spectroscopy , incipient wetness impregnation , methanol , methyl formate , microemulsion , formate , chemistry , nuclear chemistry , molar ratio , nanoparticle , inorganic chemistry , materials science , chemical engineering , nanotechnology , selectivity , organic chemistry , pulmonary surfactant , biochemistry , engineering
Methyl formate (MF) is a valuable platform molecule, the industrial production of which is far from being green. In this contribution, TiO 2 ‐supported Pd( z )Pt(1− z ) catalysts were found to be effective in the green synthesis of methyl formate (MF)—at T =323 K and ambient pressure—through methanol (MeOH) oxidation. Two series of catalysts with similar bulk Pd/(Pd+Pt) molar ratios, z , were prepared; one by a water‐in‐oil microemulsion (MicE) method and the other by an incipient wetness impregnation (IWI). The MicE method led to more efficient catalysts owing to a weak influence of z on particle size distributions and nanoparticles composition. Pd( z )Pt(1− z )‐MicE catalysts exhibited strong synergistic effects for MF production but weak synergistic effects for MeOH conversion. The catalytic performance of Pd( z )Pt(1− z )‐MicE was superior to that of Pd( z )Pt(1− z )‐IWI catalysts despite the latter displaying synergetic effects during the reaction. The catalytic behavior of TiO 2 ‐supported Pd( z )Pt(1− z ) catalysts was explained from correlations between XRD, TEM, and X‐ray photoelectron spectroscopy characterizations.