Carbon paste electrode modified with AgFeO2 as an electrocatalyst with excellent activity for water reduction and oxidation

Boosting and regulating solar energy conversion performance of delafossite AgFeO2 by spin polarization

“…Recently, researchers have found that AgFeO 2 can be applied to different aspects of photocatalytic technology, such as degradation of organic dyes [28][29][30] and watersplitting. 18 As mentioned above, delafossite AgFeO 2 has a well-dened spin polarization difference between its two crystalline phases (3R and 2H). Simultaneously, it has a suitable band gap and has been shown to act as a photocatalyst.…”

“…12,15 Subsequently, some other ABO 2 compounds were found to have multiferroic and spin polarization effects. For example, AgFeO 2 has similar a ferroelectric polarization intensity ($300 mC m À2 ) to CuFeO 2 at a temperature below 9 K; 16 AgCrO 2 exhibits ferroelectric polarization ($30 mC m À2 ) at a temperature below 21 K, in which each triangular layer of Cr 3+ ions forms parallel chains with helical spiral spin order; and CuCrO 2 with a 120 -noncollinear spin structure, shows ferroelectric polarization of $20 mC m À2 at a temperature below 23.6 K. 13,17 Although some delafossite ABO 2 compounds have been reported to exhibit multiferroicity and the spin polarization effect, and some of these compounds have been applied in the eld of photocatalysis, [18][19][20][21][22] in the literatures there are few reports on the photocatalytic performance of delafossite ABO 2 compounds regarding their multiferroicity or spin polarization effect.…”

AgFeO2 Delafosit Malzemelerin Sentez Koşulları, Kristal Yapısı, Morfolojisi ve OER Aktivitesi Arasındaki İlişki

“…The synthesis of AgFeO2 delafossite was carried out by modifying the method used by Moghaddam et al [15]. In the experiments, a custom-made stainless steel reactor with Teflon chamber was used for hydrothermal synthesis of AgFeO2 samples.…”

“…Their electronic conductivity can range from metallic to semiconductors depending on the use of A and B atoms [12]. Owing to this ability, the delafossites have recently started to receive attention in energy conversion applications as electro-catalyst or photo-catalyst [13][14][15]. Different delafossites such as CuCoO2, CuScO2, AgFeO2 were demonstrated to exhibit good electrochemical activity in KOH electrolyte [9,[16][17].…”

Improved OER Performance on the Carbon Composite Electrode through Tailored Wettability

“…Two distinct phases (graphite and PMMA) of varying wettability restrain the formation of a bigger size bubble and help in less passivation of the electrode. Albeit the use of a two-component carbon paste electrode is not peculiar in OER applications, − the role of the polymers, as reported, in those studies is limited as a matrix only for holding the catalysts. To the best of our knowledge, the contributions of this unique surface morphology of the electrode toward the electrode kinetics have never been discussed.…”