Influence of the calcination temperature and ionic liquid used during synthesis procedure on the physical and electrochemical properties of Ti/(RuO2)0.8–(Sb2O4)0.2 anodes

Ultra-fast synthesis of Ti/Ru0.3Ti0.7O2 anodes with superior electrochemical properties using an ionic liquid and laser calcination

“…This result agrees with the previous discussion on differences in the crystallite sizes varying with the synthesis conditions and can be strongly correlated with the XPS results, which showed the hydrous ruthenium oxide phase (i.e., RuOH) only for the laser-prepared anodes. Although previous literature found an increase in active sites when the mean crystallite size is reduced [18,41,42], as seen here, the formation of this hydrous phase is also well-known to contribute to the higher electronic conductivity and the increase in the voltammetric charge when present in the coating, due to the fast deprotonation/protonation reaction [34,[43][44][45]. According to the literature, at low scan rates, reactions occur in all active sites because the electrolyte can diffuse throughout the catalytic layer [26].…”

Ácidos Graxos Vegetais: Composição Química, Atividade Biológica E Potencial Biotecnológico

“…(RODRIGUES et al, 2018(RODRIGUES et al, , 2019OLIVEIRA et al, 2018) e solvente para a solubilização dos biopolímeros (DIAS et al, 2020), além de auxiliar no fracionamento da biomassa no pré-tratamento do bagaço de cana- de-açúcar (ROCHA et al, 2017). O 2-HEAA também foi proposto como um meio para separar a mistura azeotrópica isopropanol-água (BOLI, et al, 2018), como solvente para soluções precursoras na síntese de ânodos de titânio aplicados aos sistemas de tratamento de águas residuais (SANTOS et al, 2018)…”

Understanding the effect of the high hydrophobicity of the laser-prepared Ti/SnO2–Sb–La2O3 anode on its electrocatalytic properties

“…This observation is in good agreement with the literature, where the increase in the calcination temperature represents a decrease in the morphology factor due to sintering effects. 21,23,41,42 In other words, as the temperature increases, agglomeration of grains and layer crystallization occurs, thereby reducing the internal surface area. However, note that morphology factors are even lower for the laser-prepared anodes, which may be associated with the rapid heating and cooling rates in this synthesis methodology.…”

“…18,19 Significant differences in the coating adhesion, morphology, and porous microstructure have been reported to be dependent on the preparation conditions and heating processes applied. [20][21][22] Thermal decomposition methods are commonly employed to produce such materials where electric furnaces are typically used as the heating source, making it a prolonged and time-consuming process (considering the heating and cooling times).…”