Matches in SemOpenAlex for { <https://semopenalex.org/work/W2890628296> ?p ?o ?g. }
- W2890628296 endingPage "18991" @default.
- W2890628296 startingPage "18977" @default.
- W2890628296 abstract "Abstract NiA and NiX zeolites were prepared and characterised using XRD, FTIR and SEM, and subsequently tested as electrodes for hydrogen (HER) and oxygen (OER) evolution reactions in alkaline media. Linear sweep voltammetry and chronoamperometry techniques showed that NiA has higher catalytic activity for these two reactions, as evidenced by higher current densities, which can be correlated with a higher weight fraction of Ni in this electrocatalyst than in the NiX and with its higher conductivity. HER and OER kinetic parameters, including Tafel slope, exchange current density and apparent activation energy were evaluated. Electrochemical impedance spectroscopy analysis yielded values of the resistance of the solution, charge transfer and mass transfer, as well as double layer capacitance and pseudo-capacitance of the working electrode, at different potentials and temperatures. Unlike the HER, during which the mass transfer resistance of the adsorbed intermediate is dominant in the case of NiA, the OER impedance response is controlled by the charge transfer process itself at the potentials of interest for these process. The overall resistance related to the HER is lower for NiA than for NiX." @default.
- W2890628296 created "2018-09-27" @default.
- W2890628296 creator A5028187733 @default.
- W2890628296 creator A5058368205 @default.
- W2890628296 creator A5058556895 @default.
- W2890628296 creator A5068604369 @default.
- W2890628296 creator A5079465136 @default.
- W2890628296 creator A5085896398 @default.
- W2890628296 creator A5087319718 @default.
- W2890628296 date "2018-10-01" @default.
- W2890628296 modified "2023-10-17" @default.
- W2890628296 title "NiA and NiX zeolites as bifunctional electrocatalysts for water splitting in alkaline media" @default.
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