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By means of in situ IR spectroscopy we investigate the effect of dissolved alkali cations on the electro-oxidation of ethylene glycol on platinum in alkaline media. The results revealed that the increase in the oxidation currents (Li(+) < Na(+) < K(+)) is reflected in the increase in the ratio between carbonate and oxalate produced. 相似文献
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Journal of Solid State Electrochemistry - Controlling the Pt(111)-OHad stability by means of noncovalent interactions with hydrated cations, it was possible to modify natural changes in the... 相似文献
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Perini Nickson Hessel Cristian Bott-Neto José L. Pires Cléo T. G. V. M. T. Fernandez Pablo S. Sitta Elton 《Journal of Solid State Electrochemistry》2021,25(3):1101-1110
Journal of Solid State Electrochemistry - Photoelectrochemical (PEC) oxidation of biomass is a profitable approach to produce hydrogen by substituting the water oxidation reaction in the... 相似文献
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In the present work, results of the interaction between methanol and oxidized platinum surfaces as studied via transients
of open-circuit potentials are presented. The surface oxidation before the exposure to interaction with 0.5 M methanol was
performed at different polarization times at 1.4 V vs reversible hydrogen electrode (RHE). In spite of the small changes in
the initial oxide content, the increase of the pre-polarization time induces a considerable increase of the time needed for
the oxide consumption during its interaction with methanol. The influence of the identity of the chemisorbing anion on the
transients was also investigated in the following media: 0.1 M HClO4, 0.5 M H2SO4, and 0.5 M H2SO4 + 0.1 mM Cl−. It was observed that the transient time increases with the energy of anion chemisorption and, more importantly, without
a change in the shape of the transient, meaning that free platinum sites are available at the topmost layer all over the transient
and not only in the potential region of small oxide ‘coverage’. The impact of the pre-polarization time and the effect of
anion chemisorption on the transients are rationalized in terms of the presence of surface and subsurface oxygen driven by place exchange.
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Hamilton VarelaEmail: |
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Comment on “Chemical and Toxicological Investigations of a Previously Unknown Poisonous European Mushroom Tricholoma terreum” 下载免费PDF全文
Dr. Paolo Davoli Marco Floriani Dr. Francesca Assisi Dr. Karl Kob Nicola Sitta 《Chemistry (Weinheim an der Bergstrasse, Germany)》2016,22(16):5786-5788
Recent findings casting doubts over the edibility of the European mushroom Tricholoma terreum are questioned on the basis of mycological and mycotoxicological considerations. Accordingly, T. terreum should remain listed among edible mushroom species. 相似文献