Dynamic charge acceptance and hydrogen evolution of a new MXene additive in advanced lead-acid batteries<i>via</i>a rapid screening three-electrode method

Kang, Shuai; Shang, Mingwei; Spence, Matthew A.; Andrew, M.G.; Liu, Shuangyi; Niu, Junjie

doi:10.1039/c8cc00086g

Cited by 16 publications

(1 citation statement)

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“…Two-dimensional (2D) materials occupy a low surface density due to the large surface area. Compared to their bulk form, 2D materials have other alluring characteristics including high electrical conductivity and glorious mechanical properties, which are beneficial for electrocatalysts. − MXenes are a family of 2D transition metal carbides which have been intensively studied in recent years and are expanding rapidly in both types and applications. − They are also studied as efficient electrocatalysts for water splitting, ORR, nitrogen reduction reaction, and alcohol oxidation reactions. − Of all MXenes, Ti 3 C 2 T x gets the most attention. Researchers have found that, compared to commercial carbon supports, the interactions between the Pt nanoparticles and the MXene (Ti 3 C 2 T x ) substrate can prevent the agglomeration of Pt nanoparticles during electrochemical reactions .…”

Section: Introductionmentioning

confidence: 99%

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

Xue,

Fu,

Kang

et al. 2024

ACS Appl. Nano Mater.

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Proton exchange membrane fuel cells suffer from performance degradation caused by the oxidation and corrosion of carbon supports. Metal−platinum interactions can enhance the catalytic activity and stability due to compositional and geometric effects. Two-dimensional MXenes have been intensively studied in recent years and are expanding rapidly in both types and applications. Recently, ORR performances of dual-transition metal MXenes with abundant surface Mo vacancy have been demonstrated as efficient electrocatalysts toward oxygen reduction reaction in an alkaline solution. In this study, the electrochemical performances of Mo-based MXenes-supported Pt electrocatalysts toward oxygen reduction reaction are investigated in an acidic solution. Compared with the Pt/C catalysts, Pt/Mo 2 TiC 2 F x exhibits improved durability, with a 28.7 mV negative shift of the half-wave potential after continuous scanning of 5000 cycles, which is superior to Pt/C with an 84.3 mV negative shift. The proton-exchange membrane fuel cell with Pt/Mo 2 TiC 2 F x as the cathode catalyst also shows excellent activity and stability with a 0.7% potential fade after 9 h. According to the morphology evolution during oxygen reduction, the excellence in electrochemistry is due to the coherent interface between Pt and MXene, which provides a high binding force between Pt nanoparticles and the supporting materials.

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Section: Introductionmentioning

confidence: 99%

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

Xue,

Fu,

Kang

et al. 2024

ACS Appl. Nano Mater.

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Correlative Electrochemical Microscopy of Li‐Ion (De)intercalation at a Series of Individual LiMn₂O₄ Particles

et al. 2019

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The redoxactivity (Li-ion intercalation/deintercalation) of as eries of individual LiMn 2 O 4 particles of known geometry and (nano)structure,w ithin an array, is determined using acorrelative electrochemical microscopystrategy.Cyclic voltammetry (current-voltage curve,I -E) and galvanostatic charge/discharge (voltage-time curve,E -t) are applied at the single particle level, using scanning electrochemical cell microscopy( SECCM), together with co-location scanning electron microscopyt hat enables the corresponding particle size, morphology,c rystallinity,a nd other factors to be visualized. This study identifies aw ide spectrum of activity of nominally similar particles and highlights hows ubtle changes in particle form can greatly impact electrochemical properties. SECCM is well-suited for assessing single particles and constitutes acombinatorial method that will enable the rational design and optimization of battery electrode materials.

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Correlative Electrochemical Microscopy of Li‐Ion (De)intercalation at a Series of Individual LiMn₂O₄ Particles

et al. 2019

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The redox activity (Li‐ion intercalation/deintercalation) of a series of individual LiMn2O4 particles of known geometry and (nano)structure, within an array, is determined using a correlative electrochemical microscopy strategy. Cyclic voltammetry (current–voltage curve, I–E) and galvanostatic charge/discharge (voltage–time curve, E–t) are applied at the single particle level, using scanning electrochemical cell microscopy (SECCM), together with co‐location scanning electron microscopy that enables the corresponding particle size, morphology, crystallinity, and other factors to be visualized. This study identifies a wide spectrum of activity of nominally similar particles and highlights how subtle changes in particle form can greatly impact electrochemical properties. SECCM is well‐suited for assessing single particles and constitutes a combinatorial method that will enable the rational design and optimization of battery electrode materials.

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Dynamic charge acceptance and hydrogen evolution of a new MXene additive in advanced lead-acid batteriesviaa rapid screening three-electrode method

Cited by 16 publications

References 31 publications

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

Correlative Electrochemical Microscopy of Li‐Ion (De)intercalation at a Series of Individual LiMn₂O₄ Particles

Correlative Electrochemical Microscopy of Li‐Ion (De)intercalation at a Series of Individual LiMn₂O₄ Particles

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Dynamic charge acceptance and hydrogen evolution of a new MXene additive in advanced lead-acid batteriesviaa rapid screening three-electrode method

Cited by 16 publications

References 31 publications

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes

Correlative Electrochemical Microscopy of Li‐Ion (De)intercalation at a Series of Individual LiMn2O4 Particles

Correlative Electrochemical Microscopy of Li‐Ion (De)intercalation at a Series of Individual LiMn2O4 Particles

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Correlative Electrochemical Microscopy of Li‐Ion (De)intercalation at a Series of Individual LiMn₂O₄ Particles

Correlative Electrochemical Microscopy of Li‐Ion (De)intercalation at a Series of Individual LiMn₂O₄ Particles