The current status of hydrogen energy: an overview

RSC Advances, Journal Year: 2023, Volume and Issue: 13(40), P. 28262 - 28287

Published: Jan. 1, 2023

Hydrogen fuel sources will undoubtedly become the center of future revolution to replace fossil fuels. As a result, there is an increased demand for research into methods and solutions producing clean hydrogen.

Language: Английский

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MOFs coupled transition metals, graphene, and MXenes: Emerging electrocatalysts for hydrogen evolution reaction

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 148776 - 148776

Published: Jan. 18, 2024

Language: Английский

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Complementary Functions of Vanadium in Boosting Electrocatalytic Activity of CuCoNiFeMn High‐Entropy Alloy for Water Splitting

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(34)

Published: May 10, 2023

Abstract High entropy alloys (HEAs) composed of multi‐metal elements in a single crystal structure are attractive for electrocatalysis. However, identifying the complementary functions each element HEAs is prerequisite. Thus, V x CuCoNiFeMn ( = 0, 0.5, and 1.0) investigated to identify active role vanadium improving electrocatalytic activity hydrogen evolution reaction (HER). Structural studies show successful incorporation HEA. 1.0 (V ‐HEA) shows an overpotential 250 mV versus reversible electrode (at −50 mA cm −2 , 1 m KOH), which ≈170 lower than that control‐HEA (422 mV). Improves electrical conductivity electrochemical surface area ‐HEA accelerated HER activity. Furthermore, density functional theory calculations reveal reduced water dissociation adsorption energies ‐HEA, resulting boosted kinetics. The effect on barrier height sites at schematically explained. This study can be facilitated development highly large‐scale splitting.

Language: Английский

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Built-in electric field in bifunctional electrocatalyst (Ni3S2@Ni9S8) for high-efficiency OER and overall water splitting performance

Materials Today Chemistry, Journal Year: 2023, Volume and Issue: 34, P. 101758 - 101758

Published: Oct. 6, 2023

Language: Английский

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The Effect of Electrolytes on the Kinetics of the Hydrogen Evolution Reaction

Hydrogen, Journal Year: 2023, Volume and Issue: 4(4), P. 776 - 806

Published: Oct. 13, 2023

Amid global energy challenges, the hydrogen evolution reaction (HER) is gaining traction for green production. While catalyst research ongoing, recognizing electrolyte effects remains crucial sustainable production via renewable-powered water electrolysis. This review delves into intricate of electrolytes on kinetics HER. It examines key factors including pH, cations, anions, impurities, and concentration. discusses notion that pH alters catalyst–electrolyte interactions proton concentrations, thereby influencing such as binding energy, adsorption, overall kinetics. Moreover, this provides a briefing cations Li+ can impact HER positively or negatively, offering opportunities improvement based metal substrate. Interestingly, there potential be tuned using ions to modify M–H bond demonstrating flexibility beyond levels counter-ions. The varied adsorption energies electrodes are also found influence anions impurities discussed, emphasizing both positive negative impacts it pointed out electrolyte-engineering approach enhances without permanent surface modifications. underscores importance composition, highlighting challenges solutions in advancing

Language: Английский

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MXenes and heterostructures-based electrocatalysts for hydrogen evolution reaction: Recent developments and future outlook

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 92, P. 176 - 206

Published: Feb. 1, 2024

Language: Английский

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A comprehensive review on advances in polyoxometalate based materials for electrochemical water splitting

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 504, P. 215644 - 215644

Published: Jan. 17, 2024

Recent years have witnessed a growing global demand for green, sustainable, and reliable energy sources in response to the effects of climate change, pollution, crisis. Consequently, there has been significant focus on utilizing water, most abundant accessible chemical compound, renewable generation. Electrocatalysis pivotal role area green production, serving as fundamental component sustainable exceptionally efficient techniques. To achieve this, design preparation practical, functional groups host/guest compatible materials that are stable, reusable, noble-metal-free, possess structural diversities paramount importance electrochemical water splitting (EWS) systems. Polyoxometalates (POMs), emerged promising electrocatalysts past two decades, offering opportunities achieving aforementioned goals. POMs exhibit exceptional qualities such redox stability, multiredox capability, tunable intrinsic extrinsic properties (e.g., structure design, surface engineering, interface engineering), well desirable ionic conductivity. However, practical applications face substantial challenges, including issues like leaching, agglomeration, low stability. The confinement controlling their composition proven be an effective strategy tackling issues, garnering attention recent years. This review focuses progress advancement application POM-based materials. It provides thorough exploration diverse host/substrate materials, comprising carbon nanotubes, graphdiyne, graphene, nitrides, conductive polymers, MOFs, COFs, CTFs, LDHs, metal carbide MXenes, which categorize into tubular, layered, porous structures. synthesis strategies these examined, elucidating catalytic activities. Notably, highlights research advancements compounds mechanisms, particularly EWS overall electrolysis, tandem anodic hybrid systems, cathodic decoupled Addressing challenges presenting future perspectives, this aims assist selecting robust material partnerships integrating

Language: Английский

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Nanostructure engineering of ruthenium-modified electrocatalysts for efficient electrocatalytic water splitting

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(7), P. 3844 - 3878

Published: Jan. 1, 2024

This review provides a systematic summary of the nanostructure engineering Ru-modified electrocatalysts for electrocatalytic water splitting. These regulation strategies, such as single atom sites, doping, alloying and interfacial are summarized in detail.

Language: Английский

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Engineered Two-Dimensional Transition Metal Dichalcogenides for Energy Conversion and Storage

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(16), P. 9376 - 9456

Published: July 23, 2024

Designing efficient and cost-effective materials is pivotal to solving the key scientific technological challenges at interface of energy, environment, sustainability for achieving NetZero. Two-dimensional transition metal dichalcogenides (2D TMDs) represent a unique class that have catered myriad energy conversion storage (ECS) applications. Their uniqueness arises from their ultra-thin nature, high fractions atoms residing on surfaces, rich chemical compositions featuring diverse metals chalcogens, remarkable tunability across multiple length scales. Specifically, electronic/electrical, optical, thermal properties 2D TMDs been widely exploited electrochemical (e.g., electrocatalytic water splitting), anodes in alkali ion batteries supercapacitors), photocatalysis, photovoltaic devices, thermoelectric Furthermore, performances can be greatly boosted by judicious structural tuning through phase, size, composition, defect, dopant, topological, heterostructure engineering. The challenge, however, design control such engineering levers, optimally specifically, maximize performance outcomes targeted In this review we discuss, highlight, provide insights significant advancements ongoing research directions approaches improving potential ECS

Language: Английский

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Facile synthesis of strontium selenide supported copper sulfide hybrid nanosheets as an efficient electrode for high-performance OER

Journal of the Korean Ceramic Society, Journal Year: 2024, Volume and Issue: 61(3), P. 469 - 481

Published: Feb. 22, 2024

Language: Английский

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