Recent Progress in Balancing the Activity, Durability, and Low Ir Content for Ir‐Based Oxygen Evolution Reaction Electrocatalysts in Acidic Media DOI Open Access
Huimin Wang, Xinyi Li, Guozhu Zhang

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Proton exchange membrane (PEM) electrolysis faces challenges associated with high overpotential and acidic environments, which pose significant hurdles in developing highly active durable electrocatalysts for the oxygen evolution reaction (OER). Ir-based nanomaterials are considered promising OER catalysts PEM due to their favorable intrinsic activity stability under conditions. However, cost limited availability limitations. Consequently, numerous studies have emerged aimed at reducing iridium content while maintaining durability. Furthermore, research on mechanism of has garnered widespread attention differing views among researchers. The recent progress balancing activity, durability, low is summarized this review, a particular focus effects catalyst morphology, heteroatom doping, substrate introduction, novel structure development performance from four perspectives. Additionally, mechanistic discussed, both theoretical experimental approaches elucidate mechanism. Finally, perspectives future developments presented.

Language: Английский

Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis DOI Open Access
Mengyu Chen, Jingqi Guan

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Oxygen electrocatalysis is a core reaction in renewable energy devices, greatly promoting the transformation and upgrading of structure. Nonetheless, performance conversion devices hindered by large overpotential slow kinetics oxygen electrocatalytic reactions. Recently, single‐atom catalysts (SACs) have emerged as promising contenders field because their exceptional metal atom utilization, distinctive coordination environment, adjustable electronic properties. This review presents latest advancements design Co‐based SACs for electrocatalysis. First, OER ORR mechanisms are introduced. Subsequently, strategies regulating structure summarized three aspects, including centers, support carriers. A particular emphasis given to relationship between properties catalysts. Afterward, applications explored. Ultimately, challenges prospects prospected.

Language: Английский

Citations

1
Catalyst‐Anchored 3D Framework Electrodes: A Breakthrough in Large‐Scale Hydrogen Production DOI Creative Commons

Samruddhi V. Chauhan,

Kinjal K. Joshi,

Pratik M. Pataniya

et al.

Particle & Particle Systems Characterization, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

Abstract The idea of grid‐scale hydrogen production by water electrolysis has been made possible developing catalyst‐anchored three‐dimensional (3D) foam‐based electrodes. Catalytic performance in and oxygen evolution reactions is improved incorporating catalyst 3D interlinked porous architecture, which enhances electrical conductivity speeds up the discharge gas bubbles. detailed study on role‐play frameworks energy generation explained this article. review also focuses recent development utilizing these substrates field electrochemistry. Furthermore, it imperative to enhance their compatibility with renewable systems high‐temperature for sustainable hydrogen. Therefore, briefly explores innovative design self‐supported framework electrodes using heterostructures doping techniques develop stable, durable, efficient electrocatalysts. These catalysts aim provide near‐zero overpotential, high selectivity, long‐term stability through electrolysis, paving way commercial‐scale green production. can emerge as a key technology

Language: Английский

Citations

0
Review of Water Splitting Electrolysis over Cobalt Oxide Nanomaterials DOI

Khang Nhat Nguyen,

Long Bao Hoang Nguyen,

Thach Khac Bui

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Language: Английский

Citations

0
Tailoring Coordinated Steps with Ni-Substituted Co3o4 Asymmetric Active Unit for Durable and Efficient Acidic Water Oxidation DOI
Yue Qin, Lili Guo, Chang Liu

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Hierarchical Core-Shell Cu@Cu-Ni-Co Alloy Electrocatalyst for Efficient Hydrogen Evolution in Alkaline Media DOI Creative Commons
Hussein A. Younus, Maimouna Al Hinai, Mohammed Al‐Abri

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(6), P. 1515 - 1515

Published: March 19, 2025

The development of advanced electrocatalysts plays a pivotal role in enhancing hydrogen production through water electrolysis. In this study, we employed two-step electrodeposition method to fabricate 3D porous Cu-Co-Ni alloy with superior catalytic properties and long-term stability for evolution reaction (HER). resulting trimetallic alloy, Cu@Cu-Ni-Co, demonstrated significant improvements structural integrity performance. A comparative analysis electrocatalysts, including Cu, Cu@Ni-Co, revealed that Cu@Cu-Ni-Co achieved the best results alkaline media. Electrochemical tests conducted 1.0 M NaOH showed reached current density 10 mA cm−2 at low overpotential 125 mV, along Tafel slope 79.1 mV dec−1. catalyst exceptional durability, retaining ~95% its initial after 120 h continuous operation high densities. Structural confirmed enhanced performance arises from synergistic interaction between Ni, Co within well-integrated framework. This integration large electrochemical active surface area (ECSA) 380 cm2 charge transfer resistance (15.76 Ω), facilitating efficient electron promoting HER activity. These findings position as highly stable electrocatalyst conditions.

Language: Английский

Citations

0
Progress of 3D Graphene-Based Electrocatalytic Oxygen Evolution Reaction Catalysts DOI
Tong Liu, Junhua You, Yao Zhao

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: March 22, 2025

Electrocatalytic water splitting is a clean and feasible method for hydrogen production, expected to become key technology meeting energy demands. Transition metal-based nanoparticles, including single-atom catalysts their compounds, are widely used in electrocatalytic splitting, but they often suffer from issues like easy agglomeration poor conductivity. The integration of these nanoparticles with three-dimensional (3D) graphene enhances conductivity prevents agglomeration, while improving the adsorption desorption rates reactants intermediates on catalyst surface during thereby boosting efficiency. This paper reviews preparation methods graphene-based supported electrocatalysts applications oxygen evolution reactions (OERs), further discussing mechanism by which 3D improves OER performance.

Language: Английский

Citations

0
Pristine metal-organic framework electrocatalysts for hydrogen production: Role of electrocatalyst properties in basic media DOI Creative Commons
Liberty L. Mguni, Olga K. Mmelesi, Emmanuel Kweinor Tetteh

et al.

Cleaner Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 100170 - 100170

Published: April 1, 2025

Language: Английский

Citations

0
Advanced In Situ Spectroscopic Techniques for Probing the Acidic Oxygen Evolution Reaction DOI

Shi-Yu Hong,

Ze‐Cheng Yao, Xing Cheng

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(41), P. 17219 - 17239

Published: Oct. 7, 2024

Proton exchange membrane water electrolysis (PEMWE) is a promising technology for sustainable hydrogen production. However, the anodic oxygen evolution reaction (OER) critical bottleneck restricting power-to-gas efficiency and widespread application of PEMWE devices because harsh acidic oxidative environment causes drastic catalyst structural thus severe dissolution/corrosion as well performance degradation. Currently, lack deep insight identifying real catalytic sites during distinctions mechanisms have hindered development highly active durable OER catalysts PEMWE. Therefore, elucidating OER-induced structure understanding underlying are recognized foundations technology. Against this backdrop, in situ spectroscopic characterization techniques serve powerful tools achieving goal by enabling real-time monitoring capture key intermediates. This Account summarizes recent advances cutting-edge spectroscopy probing process. The fundamentals device configurations these briefly introduced, advantages each technique intermediates to unveil also been discussed. Finally, challenges, trends, prospects field presented.

Language: Английский

Citations

2
Recent Progress in Balancing the Activity, Durability, and Low Ir Content for Ir‐Based Oxygen Evolution Reaction Electrocatalysts in Acidic Media DOI Open Access
Huimin Wang, Xinyi Li, Guozhu Zhang

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Proton exchange membrane (PEM) electrolysis faces challenges associated with high overpotential and acidic environments, which pose significant hurdles in developing highly active durable electrocatalysts for the oxygen evolution reaction (OER). Ir-based nanomaterials are considered promising OER catalysts PEM due to their favorable intrinsic activity stability under conditions. However, cost limited availability limitations. Consequently, numerous studies have emerged aimed at reducing iridium content while maintaining durability. Furthermore, research on mechanism of has garnered widespread attention differing views among researchers. The recent progress balancing activity, durability, low is summarized this review, a particular focus effects catalyst morphology, heteroatom doping, substrate introduction, novel structure development performance from four perspectives. Additionally, mechanistic discussed, both theoretical experimental approaches elucidate mechanism. Finally, perspectives future developments presented.

Language: Английский

Citations

2