Compositing redox-rich Co–Co@Ni–Fe PBA nanocubes into cauliflower-like conducting polypyrrole as an electrode material in supercapacitors

Mukherjee, P; S, Vishwanath R.; Borenstein, Arie; Zidki, Tomer

doi:10.1039/d2qm01162j

Cited by 17 publications

(2 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although increasing evidence supports the idea that monometallic Fe-based catalysts are not that effective for OER, Co–Fe-based catalysts had showed much better OER performances in alkaline medium. − Furthermore, the specific role of Fe along with Co in the B-site is not only to maximize the oxide surface for formation of a self-assembled oxy-hydroxide layer but also to enhance the overall stability and provide a conducting matrix to the structure under OER condition, as highlighted by Kim et al recently . Above all, Fe along with Co centers enhance the OER performance, facilitating the generation of higher valence Co-species (viz., Co 3+ and/or Co 4+ ), which is regarded as the active species for OER in alkaline medium. − …”

Section: Introductionmentioning

confidence: 99%

Enhancing Trifunctional Electrocatalytic Activities via Lanthanide Modulation in Fe–Co-Based Double Perovskite Oxides

Ganguly,

Datta,

Loha

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

In the global development of alternative and sustainable fuels, H 2 has gained prime research interest as combustion of it results in energy with zero carbon footprint. In this context, non-noble metal-based double perovskite oxides with their wide tunable structure gained interest from researchers as an effective electrocatalyst for water oxidation in alkaline medium. However, their low catalytic efficacy and durability limit their application for the industrial scale. Here, we present several Fe−Co-based double perovskite oxides tuning their Asite with lanthanides for overall water splitting and hybrid electrolysis for energysaving H 2 production. The best Fe−Co-based double perovskite oxide, Eu 2 FeCoO 6 , demonstrates very high trifunctional electrocatalytic activity for oxygen evolution reaction (OER) and small alcohol molecule oxidation, along with hydrogen evolution reaction (HER). Overpotentials (η 10 ) of 220 mV for the OER and 238 mV for the HER were attained at 10 mA cm −2 current density in 1 M NaOH (pH = 14). Also, Faradaic yields of 85 and 89% were achieved for ethanol oxidation (EtOR) and benzyl alcohol oxidation (BnOR), respectively, with the best catalyst. Moreover, in a two-electrode electrolyzer with 0.1 M benzyl alcohol (as an electrolyte) and Eu 2 FeCoO 6 as a bifunctional catalyst (both as the cathode and anode, Eu 2 FeCoO 6 (−)∥Eu 2 FeCoO 6 (+)), a cell potential of 1.75 V was enough for oxygenation of benzyl alcohol along with the production of H 2 . A 150 mV advantage in cell potential was gained in BnOR-aided H 2 generation compared with overall water oxidation.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhancing Trifunctional Electrocatalytic Activities via Lanthanide Modulation in Fe–Co-Based Double Perovskite Oxides

Ganguly,

Datta,

Loha

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…At present, the research of COFs used for new types of secondary battery is in the initial stage, and there will be more research on COFs in the future. Meanwhile, in supercapacitors, COF materials have relatively sufficient research, but the transmission speed of supercapacitors through electrodes is slower, so their power density is relatively low [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Application of New COF Materials in Secondary Battery Anode Materials

2023

View full text Add to dashboard Cite

Covalent organic framework materials (COFs), as a new type of organic porous material, not only have the characteristics of flexible structure, abundant resources, environmental friendliness, etc., but also have the characteristics of a regular structure and uniform pore channels, so they have broad application prospects in secondary batteries. Their functional group structure, type, and number of active sites play a crucial role in the performance of different kinds of batteries. Therefore, this article starts from these aspects, summarizes the application and research progress of the COF anode materials used in lithium-ion batteries, sodium-ion batteries, and potassium-ion batteries in recent years, discusses the energy storage mechanism of COF materials, and expounds the application prospects of COF electrodes in the field of energy storage.

show abstract

Growth of TiS2 nanoflakes using CVD approach for sodium-ion battery application

et al. 2023

View full text Add to dashboard Cite

Compositing redox-rich Co–Co@Ni–Fe PBA nanocubes into cauliflower-like conducting polypyrrole as an electrode material in supercapacitors

Abstract: Supercapacitors (SCs) coupled with redox materials have been extensively investigated to maximize the SCs’ energy density. A common metal-organic framework explicitly used for this purpose are Prussian blue analogs (PBAs)....

Cited by 17 publications

References 66 publications

Enhancing Trifunctional Electrocatalytic Activities via Lanthanide Modulation in Fe–Co-Based Double Perovskite Oxides

Enhancing Trifunctional Electrocatalytic Activities via Lanthanide Modulation in Fe–Co-Based Double Perovskite Oxides

Application of New COF Materials in Secondary Battery Anode Materials

Growth of TiS2 nanoflakes using CVD approach for sodium-ion battery application

Contact Info

Product

Resources

About