Unlocking Efficiency: Minimizing Energy Loss in Electrocatalysts for Water Splitting

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

Published: June 25, 2024

Abstract Catalysts play a crucial role in water electrolysis by reducing the energy barriers for hydrogen and oxygen evolution reactions (HER OER). Research aims to enhance intrinsic activities of potential catalysts through material selection, microstructure design, various engineering techniques. However, consumption has often been overlooked due intricate interplay among catalyst microstructure, dimensionality, catalyst–electrolyte–gas dynamics, surface chemistry, electron transport within electrodes, transfer electrode components. Efficient development high‐current‐density applications is essential meet increasing demand green hydrogen. This involves transforming with high into electrodes capable sustaining current densities. review focuses on improvement strategies mass exchange, charge transfer, resistance decrease consumption. It bridge gap between laboratory‐developed, highly efficient industrial regarding structural catalyst‐electrode interplay, outlining roadmap hierarchically structured electrode‐based minimizing loss electrocatalysts splitting.

Language: Английский

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Ruthenium‐Based Electrocatalysts for Hydrogen Evolution Reaction: from Nanoparticles to Single Atoms

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: July 27, 2024

Abstract Benefiting from similar hydrogen bonding energy to Pt and much lower price compare with Pt, Ru based catalysts are promising candidates for electrocatalytic evolution reaction (HER). The catalytic activity of nanoparticles can be enhanced through improving their dispersion by using different supports, the strong metal supports interaction further regulate performance. In addition, single‐atom (SACs) almost 100% atomic utilization attract great attention coordinative atmosphere single atoms adjusted supports. Moreover, syngenetic effects improve performance catalysts. this review, progress HER electrocatalysts summarized according existing forms, including (NPs), (SAs) combination both NPs SAs. common such as carbon materials, oxides, phosphides sulfides classified clarify active centers. Especially, possible mechanisms reasons improved discussed experimental results theoretical calculations. Finally, some challenges opportunities prospected facilitate development HER.

Language: Английский

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Progress on the Design of Electrocatalysts for Large‐Current Hydrogen Production by Tuning Thermodynamic and Kinetic Factors

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)

Published: March 11, 2024

Abstract Electrochemical water splitting to produce green hydrogen offers a promising technology for renewable energy conversion and storage, as well realizing carbon neutrality. The efficiency, stability, cost of electrocatalysts toward evolution reaction (HER) electrocatalytic overall (EOWS) at large current densities are essential practical application. In this review, the key factors that determine catalytic performance summarized from angel thermodynamic kinetic correlation. corresponding design strategies presented. electronic structure density active sites affect adsorption/desorption intermediates considered aspects, while charge transfer mass transport capabilities closely associated with electrode resistance intermediate diffusion assigned effects. Recent development bifunctional integrated EOWS is also discussed in detail. Finally, perspective direction on under proposed. This comprehensive overview will offer profound insights guidance continued advancement field.

Language: Английский

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Dilute RuCo Alloy Synergizing Single Ru and Co Atoms as Efficient and CO‐Resistant Anode Catalyst for Anion Exchange Membrane Fuel Cells

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(28)

Published: April 26, 2024

Abstract Ruthenium (Ru) is considered a promising candidate catalyst for alkaline hydroxide oxidation reaction (HOR) due to its hydrogen binding energy (HBE) like that of platinum (Pt) and much higher oxygenophilicity than Pt. However, Ru still suffers from insufficient intrinsic activity CO resistance, which hinders widespread use in anion exchange membrane fuel cells (AEMFCs). Here, we report hybrid (RuCo) NC+SAs /N‐CNT consisting dilute RuCo alloy nanoparticles atomically single Co atoms on N‐doped carbon nanotubes The exhibits state‐of‐the‐art with high mass 7.35 A mg −1 . More importantly, when used as an anode AEMFCs, peak power density reaches 1.98 W cm −2 , one the best AEMFCs properties noble metal‐based catalysts at present. Moreover, has superior long‐time stability resistance. experimental functional theory (DFT) results demonstrate alloying monodecentralization exotic element greatly modulates electronic structure host Ru, thus optimizing adsorption H OH promoting surface, then stimulates HOR tolerance catalyst.

Language: Английский

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Ru-triggered domino effect constructs a local acid-like environment to achieve the ampere-level current density of a/c-Ru-FeP/IF electrode for alkaline HER

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125030 - 125030

Published: Jan. 1, 2025

Language: Английский

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Tailoring the Mo-N/Mo-O configuration in MoO2/Mo2N heterostructure for ampere-level current density hydrogen production

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 342, P. 123451 - 123451

Published: Nov. 2, 2023

Language: Английский

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Hydrogen spillover bridged dual nano-islands triggered by built-in electric field for efficient and robust alkaline hydrogen evolution at ampere-level current density

Nano Research, Journal Year: 2024, Volume and Issue: 17(6), P. 5050 - 5060

Published: March 22, 2024

Language: Английский

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One-step controlled electrodeposition nickel sulfides heterointerfaces favoring the desorption of hydroxyl groups for efficient hydrogen generation

Rare Metals, Journal Year: 2024, Volume and Issue: 43(9), P. 4377 - 4386

Published: June 1, 2024

Language: Английский

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Design of highly efficient FeWB snow-crust (SC) bifunctional electrocatalyst towards accelerated water-splitting under industrial operational conditions

Nano Materials Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Engineering Ru and Ni sites relay catalysis and strong metal-support interaction for synergetic enhanced electrocatalytic hydrogen evolution performance

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161348 - 161348

Published: March 1, 2025

Language: Английский

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