Recent advances in interface engineering of Fe/Co/Ni-based heterostructure electrocatalysts for water splitting

Ju, Hehua; Wu, Kaili; Lyu, Chaojie; Yang, Yuquan; Wu, Hongjing; Li, Jiajia; Liu, Naiyan; Lau, Woon‐Ming; Zheng, Jie

doi:10.1039/d3mh00366c

Cited by 19 publications

(5 citation statements)

References 227 publications

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“…The metal can be decorated over the surface of transition metal‐based semiconductors or on carbonaceous materials [118–121] . The interface between the metal and semiconductor has unique ability to synergistically enhance the reaction kinetics of different types of electrocatalytic reactions.…”

Section: Electronic Redistribution In Different Types Of Heterointerf...mentioning

confidence: 99%

Electronic Redistribution Through the Interface: A Prodigy that Enhances Electrocatalysis

Gaur,

Sharma,

Bagchi

2024

ChemCatChem

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Efficient design approaches have been developed to create electrocatalysts with the aim of enhancing both the number of active sites and the inherent activity of each individual active site. There is a requirement for more universally applicable approaches to thoroughly understand the activity of electrocatalysts. Heterojunctions have a notable positive impact on electrode surfaces, especially for compounds that have groups capable of donating or withdrawing electrons. Heterojunctions generate a confined distribution of electric charge at the boundary due to an intrinsic electric field caused by the differences in work function between the materials present. The existence of a concentrated charge distribution at the interface leads to the creation of an electro/nucleophilic region, which increases the attraction of intermediary substances. On the other hand, the existence of a site with an abundance of electrons greatly enhances the capacity for hydrogen adsorption and also improves other electroreduction processes. Conversely, the presence of a site with a deficiency of electrons greatly enhances the oxygen evolution reaction (OER). This review summarizes the electron redistribution phenomenon happening after the strong contact between two interfaces. We have explained the charge distribution phenomenon in semiconductor‐semiconductor heterojunctions and metal‐semiconductor heterojunctions.

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Section: Electronic Redistribution In Different Types Of Heterointerf...mentioning

confidence: 99%

Electronic Redistribution Through the Interface: A Prodigy that Enhances Electrocatalysis

Gaur,

Sharma,

Bagchi

2024

ChemCatChem

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“…2,9 Recently, a large number of non-precious metal electrocatalysts such as transition metal oxides, hydroxides, and nitrides have received much attention, but some of the catalysts only show excellent hydrogen or oxygen production activity and their total hydrolysis performance is poor. [10][11][12] Among them, transition metal oxides, such as Mo-based oxides, have been widely studied for hydrogen evolution reaction (HER) electrocatalysts due to their abundant reserves, excellent electrochemical conductivity and high chemical stability. Specifically, molybdenum oxide (MoO 2 ) is a good HER electrocatalyst because of its low electrical resistance (8.8 Â 10 À5 O cm).…”

Section: Introductionmentioning

confidence: 99%

Rapid carbothermal shocking fabrication of iron-incorporated molybdenum oxide with heterogeneous spin states for enhanced overall water/seawater splitting

Sun,

Qin,

Zhao

et al. 2024

Mater. Horiz.

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“…Density functional theory (DFT) calculations and experimental tests demonstrated high electrochemical stability of MXene (V 2 C or Nb 2 CT x )-supported Pt configurations during the ORR process, which is ascribed to the high thermodynamic stability of the strong and reactive metal–support interaction. Interface engineering provides a feasible approach to improve catalytic activity, and interfacial bonding plays a crucial role in the stability of the electrocatalysts. − Fe–N–C/MXene (Ti 3 C 2 T x ) with superlattice-like heterostructure has been demonstrated as an enhanced oxygen reduction electrocatalyst . Precious metal nanoparticles and 2D supporting materials easily form a coherent interface, which improves electrocatalytic performances.…”

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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Recent advances in interface engineering of Fe/Co/Ni-based heterostructure electrocatalysts for water splitting

Abstract: Among various methods of developing hydrogen energy, electrocatalytic water splitting for hydrogen production is one of the approaches to achieve the goal of zero carbon emissions. It is of great...

Cited by 19 publications

References 227 publications

Electronic Redistribution Through the Interface: A Prodigy that Enhances Electrocatalysis

Electronic Redistribution Through the Interface: A Prodigy that Enhances Electrocatalysis

Rapid carbothermal shocking fabrication of iron-incorporated molybdenum oxide with heterogeneous spin states for enhanced overall water/seawater splitting

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

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