2017
DOI: 10.1016/j.jelechem.2016.12.049
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Oxygen crossover effect on palladium and platinum based electrocatalysts during formic acid oxidation studied by scanning electrochemical microscopy

Abstract: Please cite this article as: Juan V. Perales-Rondón, Enrique Herrero, José Solla-Gullón, Carlos M. Sánchez-Sánchez, Vincent Vivier , Oxygen crossover effect on palladium and platinum based electrocatalysts during formic acid oxidation studied by scanning electrochemical microscopy. AbstractThe electrocatalytic activity towards formic acid oxidation reaction (FAOR) in the presence of simultaneous oxygen reduction reaction (ORR) displayed by 5 different metallic nanoparticles (NPs) (Pt 100 , Pt 75 Pd 25 , Pt 50 … Show more

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Cited by 17 publications
(11 citation statements)
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“…Platinum is a metallic material, which has already demonstrated satisfactory performance as electrocatalyst for different electrochemical processes such as O 2 reduction [29], formic acid and CO oxidations [30][31][32] as well as hydrogenation [33,34]. It is well known that Pt particles cannot hydrogenate nitrate but present excellent kinetic rates for nitrite reduction towards ammonia [35,36].…”
Section: Introductionmentioning
confidence: 99%
“…Platinum is a metallic material, which has already demonstrated satisfactory performance as electrocatalyst for different electrochemical processes such as O 2 reduction [29], formic acid and CO oxidations [30][31][32] as well as hydrogenation [33,34]. It is well known that Pt particles cannot hydrogenate nitrate but present excellent kinetic rates for nitrite reduction towards ammonia [35,36].…”
Section: Introductionmentioning
confidence: 99%
“…The increasing interest on this topic, which leads to thousands of publications per year, is not only owe to the particular physicochemical properties of RTILs [19][20], but also due to the particular interactions of the RTIL with the electrode surface [21] and the interesting co-catalyst role played by imidazolium cations, particularly 1-alkyl-3-methylimidazolium cations [C n mim + ], in some reactions like CO 2 electroreduction [22][23][24]. Experimental conditions for properly studying electrocatalytic reactions at nanoparticulated electrodes in aqueous media are well established in the literature [25][26][27]. Nevertheless, the relevant effect in RTILs electrochemical behavior of several experimental factors, which include temperature, water content and level of impurities [28][29][30][31] requires a strict control of those parameters.…”
Section: Introductionmentioning
confidence: 99%
“…118 This kind of in-between bond strength is what puts noble metal electrocatalysts on top of the volcano curve, which makes them very suitable candidates for the ORR. [119][120][121][122][123][124][125] However, these state-of-the art electrocatalysts are more costly; thus researchers have been developing various combinations to decrease the noble-metal loading, thus presumably decreasing the cost. For instance, Sun et al 126 have prepared alloys such as PdW nanoparticles supported on nitrogen and sulfur doped graphene (NSG) and demonstrated through RC-SECM a high electrocatalytic activity for the ORR.…”
Section: Oxygen Reduction Reaction (Orr)mentioning
confidence: 99%