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Methanol tolerant electrocatalysts for the oxygen reduction reaction
(Springer, 2014-09-18)
Direct methanol fuel cells (DMFCs) represent an interesting alternative in obtaining electricity in a clean and efficient way. Portable power sources are one of the most promising applications of passive DMFCs. One of the ...
Effect of the Preparation Method on the Electrocatalytic Activity of Pt-Sn/Nanotubes Catalysts Used in DMFC
(Electrochemical Society, 2017-11)
A series of bimetallic Pt-Sn catalysts supported on multiwalled carbon nanotubes (NT) for methanol oxidation reaction was prepared by different methods that involve ethylene glycol synthesis under reflux conditions and ...
Descontaminação de efluentes contendo Cefalexina por processos (foto)eletroquímicos com filmes de TiO2 e TiO2-X
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de QuímicaQuímicaUTFPR, 2021-12-03)
The present work aims the degradation of the drug Cephalexin in aqueous media through different methodologies: photolysis, photocatalysis, photoelectrocatalysis and electrocatalysis using pure and Ti3+ doped TiO2 films to ...
Surface diffusion of poisoning species during CO and formic acid oxidation on PtAu surface. The key role of the active site
(Elsevier Science, 2021-01-31)
A comparative study of the Pt and Pt/Au surface towards CO and formic acid oxidation was performed by conventional electrochemical techniques used in combination with an electrochemical flow cell (four-electrode configuration) ...
Electrochemical Instrumentation of an Embedded Potentiostat System (EPS) for a Programmable-System-On-a-Chip
(MDPI, 2018-12-18)
Under the main features required on portable devices in electrochemical instrumentation is to have a small size, low power consumption, economically affordable and precision in the measurements. This paper describes the ...
Research on methanol-tolerant catalysts for the oxygen reduction reaction
(Springer, 2015-06)
Direct methanol fuel cells (DMFCs) generate electricity in a clean and efficient way, so they are a valuable alternative to traditional environmentally harmful technologies. Portable power sources are one of the applications ...
Effect of Nitrogen-Functional Groups on the ORR Activity of Activated Carbon Fiber-Polypyrrole-Based Electrodes
(Springer, 2018-07-10)
Polypyrrole (PPy) coatings inside the microporosity of an activated carbon fiber (ACF) were synthesized by chemical polymerization obtaining ACF-PPy composites. N-doped ACFs were prepared by carbonization of the ACF-PPy ...
Effect of Sn content on Pt/ CNT electrocatalysts for direct ethanol fuel cell application
(John Wiley & Sons Inc., 2021-07)
Several bimetallic PtSn catalysts supported on multiwalled carbon nanotubes for ethanol electro-oxidation were prepared by conventional impregnation-reduction method. The Pt loading was kept at 20 wt.% and Pt:Sn atomic ...
Detecção eletroquímica de furfural e hidroximetilfurfural em bagaço de cana-de-açúcar utilizando cromatografia líquida de alta eficiência
(Universidade Estadual Paulista (Unesp), 2013-08-21)
O furfural e o hidroximetilfurfural (HMF) presentes no bagaço da cana-de-açúcar influenciam fortemente o processo de hidrólise desta biomassa, comprometendo a eficiência da produção de etanol de segunda geração por serem ...
Detecção eletroquímica de furfural e hidroximetilfurfural em bagaço de cana-de-açúcar utilizando cromatografia líquida de alta eficiência
(Universidade Estadual Paulista (Unesp), 2013-08-21)
O furfural e o hidroximetilfurfural (HMF) presentes no bagaço da cana-de-açúcar influenciam fortemente o processo de hidrólise desta biomassa, comprometendo a eficiência da produção de etanol de segunda geração por serem ...