Next-Generation Green Hydrogen: Progress and Perspective from Electricity, Catalyst to Electrolyte in Electrocatalytic Water Splitting

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: July 5, 2024

Green hydrogen from electrolysis of water has attracted widespread attention as a renewable power source. Among several production methods, it become the most promising technology. However, there is no large-scale system currently that can compete with conventional fossil fuel production. Renewable energy electrocatalytic splitting an ideal technology environmental cleanliness protection and good purity, which meet requirements future development. This review summarizes introduces current status by three aspects: electricity, catalyst electrolyte. In particular, present situation latest progress key sources power, catalytic materials electrolyzers for are introduced. Finally, problems generation electrolytic directions next-generation green in discussed outlooked. It expected this will have important impact on field water.

Language: Английский

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Modulation of active surface sites on Ni–Fe–S by the dynamic hydrogen bubble template method for energy-saving hydrogen production

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(15), P. 9038 - 9054

Published: Jan. 1, 2024

A porous structure was electrosynthesized via a DHBT with interconnected nanosheets. The fabricated electrode demonstrated great activity for the UOR and HER.

Language: Английский

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Bimetallic Single-Atom Catalysts for Water Splitting

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Sept. 25, 2024

Abstract Green hydrogen from water splitting has emerged as a critical energy vector with the potential to spearhead global transition fossil fuel-independent society. The field of catalysis been revolutionized by single-atom catalysts (SACs), which exhibit unique and intricate interactions between atomically dispersed metal atoms their supports. Recently, bimetallic SACs (bimSACs) have garnered significant attention for leveraging synergistic functions two ions coordinated on appropriately designed BimSACs offer an avenue rich metal–metal metal–support cooperativity, potentially addressing current limitations in effectively furnishing transformations involve synchronous proton–electron exchanges, substrate activation reversible redox cycles, simultaneous multi-electron transfer, regulation spin states, tuning electronic properties, cyclic states low energies. This review aims encapsulate growing advancements bimSACs, emphasis pivotal role generation via splitting. We subsequently delve into advanced experimental methodologies elaborate characterization SACs, elucidate discuss local coordination environment. Overall, we present comprehensive discussion deployment bimSACs both evolution reaction oxygen reaction, half-reactions electrolysis process.

Language: Английский

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Ruthenium nanoparticles decorated with surface hydroxyl and borate species boost overall seawater splitting via increased hydrophilicity

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(11), P. 3888 - 3897

Published: Jan. 1, 2024

The surface hydroxyl and borate species in Ru–BO x –OH-300 nanocomposite have been evidenced to be crucial for efficient seawater electrolysis, due the high hydrophilicity, optimized electronic structure of Ru, weakened adsorption Cl − .

Language: Английский

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Electrochemical Synthesis of a Ni–W–P/Mo Electrode for Highly Efficient and Stable Hydrogen Evolution Reaction

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: 64(2), P. 1173 - 1180

Published: Jan. 6, 2025

Hydrogen energy as a new type of clean has been widely used. Electrolysis is highly effective method producing hydrogen from water. Catalysts with low development costs and high efficiency are the focus current research. A novel Ni–W–P/Mo catalyst for evolution reaction (HER) was synthesized by electrodeposition based on molybdenum mesh. The experimental results show that when density 10 mA/cm2, best overpotential in alkaline medium 75 mV. Not only that, Tafel slope (77 mV/dec) also proves its excellent dynamic performance. In addition, 60 h stability test at mA/cm2 indicates an long-term Compared catalysts reported recent years, HER performance much better than most nonprecious metal catalysts. uniform regular network provides large area support catalyst, which conducive to synthesis catalyst. By doping W, electronic structure regulated, water decomposition promoted. morphology important factor improving activity amorphous this work idea research catalytic materials production electrolysis significance promoting economy.

Language: Английский

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Strong Lewis acid-induced self-healing of loose FeOOH for alkaline oxygen evolution

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 487, P. 150253 - 150253

Published: March 8, 2024

Language: Английский

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Accelerating Oxygen Electrocatalysis Kinetics on Metal–Organic Frameworks via Bond Length Optimization

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: April 19, 2024

Metal-organic frameworks (MOFs) have been developed as an ideal platform for exploration of the relationship between intrinsic structure and catalytic activity, but limited activity stability has hampered their practical use in water splitting. Herein, we develop a bond length adjustment strategy optimizing naphthalene-based MOFs that synthesized by acid etching Co-naphthalenedicarboxylic acid-based (donated AE-CoNDA) to serve efficient catalyst AE-CoNDA exhibits low overpotential 260 mV reach 10 mA cm

Language: Английский

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Experimental and Computational Study of Modified Biopolymer Xanthan Gum with Synthetic Vinyl Monomers for Enhanced Oil Recovery

Journal of Polymers and the Environment, Journal Year: 2024, Volume and Issue: 32(12), P. 6256 - 6275

Published: July 30, 2024

Abstract Utilizing xanthan gum, a biodegradable polymer, in enhanced oil recovery (EOR) is imperative wherever there need for innovation production that both cost-effective and environmentally friendly. Xanthan, chosen its natural sourcing, availability, controllability, eco-friendliness, biodegradability, proves resilient against harsh reservoir conditions owing to rigid structure elongated polysaccharide chains. This study investigates two modified gum composites, achieved by grafting with synthetic vinyl monomers through emulsified polymerization. Spectroscopic characterization using FTIR 1 H-NMR, along surface morphology analysis via atomic force microscopy (AFM) thermal behavior screening TGA analysis, elucidates the properties of these composites. Rheological under conditions, including stress scanning viscosity/shear rate dependency, was evaluated. Material modeling Materials Studio program simulated equilibrium adsorption biopolymer chains on SiO 2 -quartz crystal assess wettability alteration. Simulation results indicate XG-g-AM, MMA&TEVS exhibit greater stability coverage more negative electrostatic energies compared XG XG-g-AM&MMA. The laboratory runs sandstone-packed model identify disclosed XG-g-AM&MMA biopolymers as promising EOR candidates modifiers challenging sandstone reservoirs, per experimental outcomes.

Language: Английский

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Hierarchical NiFeP Nanoflowers on the MXene Film as a Self-Standing Bifunctional Electrode toward Superior Overall Water Electrolysis

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(7), P. 7684 - 7693

Published: March 15, 2024

The exploitation of highly active, nonprecious metal bifunctional electrodes to facilitate the hydrogen evolution reaction (HER) and oxygen (OER) is essential for water electrolysis produce hydrogen, but performances are still unsatisfactory. Herein, a facile strategy was proposed fabricate three-dimensional (3D) bimetallic phosphide (NiFeP) nanoflower array on self-standing assembled MXene nanosheet film (denoted as NiFeP@MXene) structurally integrated electrode overall splitting. NiFeP@MXene with 3D hierarchical structures can be directly used an without traditional polymer binders, which significantly reduces contact resistance facilitates electron transfer at interface. Meanwhile, interfacial synergistic coupling created between conductive phosphides, favorable catalytic activity. Moreover, addition Fe improves intrinsic activity simultaneously formation flower-like more active sites. Thus, demonstrates excellent in alkaline electrolyte small overpotentials 240 122 mV drive 10 mA cm–2 current density OER HER, respectively, along superior performance compared commercial precious IrO2∥Pt/C catalyst.

Language: Английский

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Pt nanoparticles anchored by oxygen vacancies in MXenes for efficient electrocatalytic hydrogen evolution reaction

Nanoscale, Journal Year: 2024, Volume and Issue: 16(16), P. 8020 - 8027

Published: Jan. 1, 2024

Pt/MXene heterostructures were prepared by constructing oxygen vacancies on MXene to anchor Pt nanoparticles, which exhibited accelerated HER kinetics in 0.5 M H 2 SO 4 solution due the synergistic effect between MXenes and nanoparticles.

Language: Английский

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