Nanocatalyzed PtNi Alloy Intact @3D Graphite Felt as an Effective Electrode for Super Power Redox Flow Battery

Mariyappan, Karuppusamy; Mahalakshmi, Thiyagarajan; Roshni, Thangampillai Senthilkumar; Ragupathy, P.; Ulaganathan, Mani

doi:10.1002/admi.202202007

Cited by 12 publications

(3 citation statements)

References 43 publications

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“…Pt-based alloys are recognized as a promising choice attributing to their excellent behaviors. 31,32 Furthermore, PANI was successfully coated on the surface of PtNi material (Fig. S1c and f†).…”

Section: Resultsmentioning

confidence: 99%

Self-powered PtNi-polyaniline films for converting rain energy into electricity

Wang,

Duan,

Guo

et al. 2023

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

Self-powered PtNi-polyaniline films for converting rain energy into electricity

Wang,

Duan,

Guo

et al. 2023

RSC Adv.

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“…[26] Ulaganathan and colleagues reported Pt@GF electrodes to get an enhancement of bromine kinetics. [27,28] Moreover, Liu et al developed an aqueous zinc bromine battery integrated with the exfoliated covalent organic frameworks (COFs) for bromine cathode. The abundant functional groups of COFs exhibited strong adsorption toward Br species and facilitated the bidirectional conversion of polybromide.…”

Section: Introductionmentioning

confidence: 99%

Core‐shell Ni/NiO heterostructures as catalytic cathodes enabling high‐performance zinc bromine flow batteries

Li,

Zhou

et al. 2024

Carbon Neutralization

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Zinc bromine flow batteries (ZBFBs) are well suited for stationary energy storage due to their attractive features of high energy density and low cost. Nevertheless, the ZBFBs suffer from low power density and limited efficiency owing to the relatively severe polarization of the Br2/Br− redox couple. Herein, a three‐dimensional (3D) hierarchical composite electrode based on core‐shell Ni/NiO heterostructures anchored on graphite felt (Ni/NiO@GF) is designed to promote the kinetics of the Br2/Br− couple, so as to improve the power density and efficiency of the ZBFB. In this design, the highly conductive carbon felt and Ni cores provide a composite electrode with a 3D electron transporting framework to guarantee excellent electronic conductivity, while the NiO shells possess great absorption ability to Br2 and brilliant catalytic activity for the Br2/Br− redox reaction to reduce the electrochemical polarization. As a result, an enhanced ZBFB with Ni/NiO@GF electrode shows an outstanding energy efficiency of 86% at 20 mA cm−2 and can be operated at a current density of up to 160 mA cm−2 with a respectable energy efficiency of 67%. These results exhibit a promising strategy to fabricate catalytic electrodes for high‐performance ZBFBs.

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“…Since the electrode is a key parameter that determines the power density of ZBRFBs, it is very essential to introduce a novel electrode design with good stability and electrochemical activity. Till date, several approaches have been made to enhance the electrochemical activity of the electrode, and various modication techniques have also been adopted, mostly including creating functional groups, [13][14][15] porous architecture, 16,17 decorating with metal/metal oxide electrocatalysts, [18][19][20] and loading carbon-based materials on the electrode. [21][22][23][24][25] However, some of the reported electrocatalysts exhibited relatively low electrochemical activity.…”

Section: Introductionmentioning

confidence: 99%