Unraveling the Synergistic Role of Sm3+ Doped NiFe‐LDH as High‐Performance Electrocatalysts for Improved Anion Exchange Membrane and Water Splitting Applications DOI Open Access
Sreenivasan Nagappan,

Hemalatha Gurusamy,

Harpriya Minhas

et al.

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

Published: Dec. 17, 2024

Effective first-row transition metal-based electrocatalysts are crucial for large-scale hydrogen energy generation and anion exchange membrane (AEM) devices in water splitting. The present work describes that SmNi

Language: Английский

Surface-Enhanced Raman Scattering Coupled with In Situ Raman Spectroscopy for the Detection of the OER Mechanism: A Mini-Review DOI
Suprobhat Singha Roy, Sreenivasan Nagappan,

Asha K. Satheesan

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(33), P. 13634 - 13650

Published: July 29, 2024

Electrocatalysis has emerged as a pivotal field for sustainable energy and environmental solutions, fueling the development of diverse electrocatalysts over past 2 decades. However, comprehensive understanding intricate dynamical processes governing electrochemical reactions remains elusive is hampering efficient catalyst design. Surface-sensitive techniques like in situ/operando Raman spectroscopy are indispensable characterizing these dynamic guiding novel catalysts. This review systematically summarizes recent advances employing techniques, with particular emphasis on surface-enhanced (SERS), probing various electrocatalytic systems. It discusses development, advantages, available configurations techniques. Moreover, underscores potential situ SERS unraveling mechanisms oxygen evolution reaction (OER) through innovative strategies methodological advancements. Notably, leveraging OER catalysts, such single-atom metal–organic frameworks, electrolyte–electrode interfaces, can unveil unexplored pathways, superior catalytic materials. Overcoming challenges harnessing SERS' capabilities deepen our mechanistic OER, enabling rational design durable crucial renewable advancement.

Language: Английский

Citations

10
Ru Doped Ir Nanowires for High‐Efficient and Durable Proton Exchange Membrane Water Electrolyzers DOI

Bingqian Pang,

Suyang Feng,

Yueshan Xu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 13, 2024

Abstract Long‐term operation of proton exchange membrane water electrolysis (PEMWE) poses significant challenges due to the high potential and strong acidic environment associated with oxygen evolution reaction (OER), leading severe catalyst degradation. Here, ultrafine iridium–ruthenium nanowires (IrRu NWs) are developed through a facile process, which exhibits excellent activity stability for OER. The IrRu NWs achieve an overpotential 243 mV at 10 mA cm −2 , is significantly lower than that commercial IrO 2 pure Ir nanowires. Importantly, demonstrate 17.6% higher current density V in real PEMWE device Pt/C catalysts anode cathode, respectively. layers can be stably operated 1.0 1.5 A more 500 h degradation rate only 28 µV −1 makes promising toward applications.

Language: Английский

Citations

9
CoIr Nanoalloy/N-Doped Ti3C2Tx MXene 0D/2D Heterojunction as a Catalyst for the Electrochemical Oxygen Evolution Reaction DOI
Anh Quoc Khuong Nguyen, Hau Quoc Pham,

Quyen Huynh

et al.

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

Published: March 6, 2025

Language: Английский

Citations

1
Development of Electrochemical Water Splitting with Highly Active Nanostructured NiFe Layered Double Hydroxide Catalysts: A Comprehensive Review DOI Open Access
Aviraj M. Teli, Sagar M. Mane, Sonali A. Beknalkar

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 293 - 293

Published: March 20, 2025

Electrochemical water splitting is a feasible and effective method for attaining hydrogen, offering mechanism renewable energy solutions to combat the world’s crises due scarcity of fossil fuels. Evidently, viability stability electrocatalysts are fundamental electrochemical water-splitting process. However, net efficiency this process noticeably hindered by kinetic drawbacks related OER. Hence, NiFe LDH has been widely used as highly efficient OER HER catalyst material its unique nanostructure, tunable composition, favorable electronic structure. This review offers systematic analysis latest progress in fabrication functional catalysts associated strategies, structure optimizations, performance improvements. Special emphasis given understanding role nanostructure engineering increasing active site accessibility, enhancing effectiveness subsequent electron transfer, boosting intrinsic catalytic activity Moreover, we discuss influence doping, defects, formation heterostructures with other materials on activities LDHs. Additional accounts basic structures provided, along an enhanced theoretical based DFT studies LDH. limitations potential developments work focus need existing synthesis approaches, catalysts, their insertion into working processes. comprehensive current state research use foster improved development sustainable hydrogen sources future.

Language: Английский

Citations

1
A comprehensive review and perspective of recent research developments, and accomplishments on structural-based catalysts; 1D, 2D, and 3D nanostructured electrocatalysts for hydrogen energy production DOI
Premnath Kumar, Andreina García, Supareak Praserthdam

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 88, P. 638 - 657

Published: Sept. 23, 2024

Language: Английский

Citations

6
Titanium oxide supported molybdenum-nickel-iron oxide electrocatalyst for efficient and durable oxygen evolution reaction DOI
Zhiwei Li, Kai Zhang, Shuaichong Wei

et al.

Fuel, Journal Year: 2024, Volume and Issue: 375, P. 132509 - 132509

Published: July 24, 2024

Language: Английский

Citations

5
Fueling the future of clean energy with self‐supported layered double hydroxides‐based electrocatalysts: A step toward sustainability DOI Creative Commons

Man‐Kei Wong,

Jian Yiing Loh,

Feng Ming Yap

et al.

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

Published: Nov. 5, 2024

Abstract Amid the ongoing transition toward renewable fuels, self‐supported layered double hydroxides (LDHs) are envisioned as propitious electrocatalysts for reinvigorating electrocatalysis realm, thereby facilitating environmental remediation and bolstering sustainable global energy security. Exploiting appealing attributes such unique lamellar structure, abundant active sites, tunable intercalation spacing compositional flexibility, LDHs boast remarkable activity, selectivity stability across diverse energy‐related applications. By virtue of addressing technological time prominence excavating their renaissance, this review first encompasses facile state‐of‐the‐art synthetic approaches alongside intriguing modification strategies, deciphering authentic structure–performance correlations advancing more robust precise catalyst design. Aside from this, heterostructure engineering employing diversified ranges coupling materials is highlighted, to construct ground‐breaking binder‐free LDHs‐based heterostructures endowing with unprecedented activity stability. Subsequently, milestone gained experimental research theoretical modeling frontier in multifarious electrocatalytic applications, including HER, OER, UOR, AOR, seawater splitting other fundamental conversion reactions rigorously unveiled. As a final note, brief conclusion presented an outline future prospects. Essentially, aspires offer enlightenment incite wise inspiration evolution innovative resilient next‐generation catalysts. image

Language: Английский

Citations

5
Stabilizing oxygen-deficient Mn sites active in seawater oxidation DOI
Tanveer ul Haq, M. Smari,

Aleena Tahir

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(22), P. 13417 - 13426

Published: Jan. 1, 2024

This study presents the engineering of a sustainable electrode for unpurified seawater electrolysis, featuring Ca-doped manganese oxide nanorods anchored on Ni(OH) 2 microarray.

Language: Английский

Citations

4
Defects trigger redox reactivities between metal and lattice oxygen in high-entropy layered double hydroxide for boosting oxygen evolution in alkaline DOI

Shaofu Kuang,

Zugao Pi,

Xinwei Li

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 679, P. 296 - 306

Published: Sept. 29, 2024

Language: Английский

Citations

4
Design of Electrocatalysts with High Performance Based on Thermodynamics and Kinetics: Progress and Prospects DOI
Minshu Du,

Feihan Yu,

Shumin Gong

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 15, 2024

Abstract Efficient and robust electrocatalysts play a central role in clean energy conversion, enabling number of sustainable processes for future technologies. The traditional explorations electrocatalyst relying on the trial‐and‐error approaches are definitely tedious inefficient. Theoretical progresses reactive thermodynamics kinetics recent years have initiated powerful theory‐guided design strategy electrocatalysts. Herein, this review first summarizes principles activity stability, presenting thermodynamics, kinetics, synergistic thermokinetic correlation electrocatalytic reaction. Second, screening criterion, reasonable design, mechanistic understanding, performance evaluation typical as divided into oriented‐, oriented‐designs discussed. necessity correlating rational mechanism clarification is highlighted. Finally, conclusions perspectives development highly efficient proposed.

Language: Английский

Citations

4