A study of the anodic oxidation of methanol on Pt in alkaline solutions

Active and Stable Platinum/Ionic Liquid/Carbon Nanotube Electrocatalysts for Oxidation of Methanol

“…The EASA of each electrode was calculated using Equation (3) ) for the PtRu/ CNTs-PIL and Pt/CNTs-PIL-modified electrodes [41], respectively, in the acidic solution (0.5 M H 2 SO 4 ), showing that higher EASA and alkaline condition are essential to provide higher mass activity for MOR. It has also been reported that the polarization characteristics of MOR at the unsupported Pt black in alkaline solution is one order higher than that in the acidic solution [42]. [43].…”

Online Monitoring of Methanol Electro-Oxidation Reactions by Ambient Mass Spectrometry

“…To date, a majority of the work related to direct methanol fuel cells was conducted in acidic media while a few studies of methanol oxidation in alkaline solutions were reported [49][50][51]. There are several advantages of oxidizing methanol electrochemically at alkaline pH.…”

“…There are several advantages of oxidizing methanol electrochemically at alkaline pH. First, it was shown that the methanol oxidation yield is higher in alkaline solution compared with that in acid media [49][50][51]. Second, better oxygen reduction kinetics in alkaline solution than in acidic environment was also found [20].…”

Uso de eletrodos de cobre e eletrodos modificados como sensores eletroquímicos

“…[182]. A corrente que surge no intervalo entre −0,50 e −0,15 V é de natureza capacitiva, correspondendo à dupla camada elétrica.…”

“…Portanto, nessa região a superfície do eletrodo de Pt encontra-se livre de hidrogênio e oxigênio adsorvidos [54,[180][181]. Em potenciais mais positivos que −0,15 V, o pico III a corresponde aos processos de oxidação da superfície da Pt, com consequente formação de óxidos [180][181][182]. Na varredura negativa de potencial, o pico IV c está associado com a redução de óxidos de Pt [180][181][182].…”