Defect engineering of two-dimensional materials for advanced energy conversion and storage

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(5), P. 1723 - 1772

Published: Jan. 1, 2023

Defective two-dimensional (2D) materials show huge potential for energy-related fields. This review overviews the formation/evolution mechanisms and engineering strategies of defects in 2D materials, which enable enhanced electrode reaction kinetics.

Language: Английский

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Bifunctional Single Atom Catalysts for Rechargeable Zinc–Air Batteries: From Dynamic Mechanism to Rational Design

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(35)

Published: June 7, 2023

Ever-growing demands for rechargeable zinc-air batteries (ZABs) call efficient bifunctional electrocatalysts. Among various electrocatalysts, single atom catalysts (SACs) have received increasing attention due to the merits of high utilization, structural tunability, and remarkable activity. Rational design SACs relies heavily on an in-depth understanding reaction mechanisms, especially dynamic evolution under electrochemical conditions. This requires a systematic study in mechanisms replace current trial error modes. Herein, fundamental oxygen reduction is first presented combining situ and/or operando characterizations theoretical calculations. By highlighting structure-performance relationships, rational regulation strategies are particularly proposed facilitate SACs. Furthermore, future perspectives challenges discussed. review provides thorough SACs, which expected pave avenue exploring optimum effective ZABs.

Language: Английский

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A Fluorinated Covalent Organic Framework with Accelerated Oxygen Transfer Nanochannels for High‐Performance Zinc–Air Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(17)

Published: Feb. 6, 2023

The establishment of abundant three-phase interfaces with accelerated mass transfer in air cathodes is highly desirable for the development high-rate and long-cycling rechargeable zinc-air batteries (ZABs). Covalent organic frameworks (COFs) exhibit tailored nanopore structures, facilitating rational tuning their specific properties. Here, by finely fluorinated nanopores a COF, novel cathode ZABs unprecedentedly designed synthesized. COF nanosheets are decorated alkyl chains, which shows high affinity to oxygen (O2 ), its (fluorinated COF). stacked into well-defined O2 -transport channels, then assembled aerophilic "nano-islands" on hydrophilic FeNi layered-double-hydroxide (FeNi LDH) electrocatalyst surface. Therefore, mass-transport "highway" water segregated nanoscale, significantly enlarges area boundaries greatly promotes mass-transfer therein. based COF-modified deliver small charge/discharge voltage gap (0.64 V at 5 mA cm-2 peak power density (118 mW stable cyclability. This work provides feasible approach design high-performance ZABs, will expand new application COFs.

Language: Английский

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Recent advancements on designing transition metal-based carbon-supported single atom catalysts for oxygen electrocatalysis: Miles to go for sustainable Zn-air batteries

Energy storage materials, Journal Year: 2023, Volume and Issue: 61, P. 102890 - 102890

Published: July 18, 2023

Language: Английский

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Design Principles and Mechanistic Understandings of Non-Noble-Metal Bifunctional Electrocatalysts for Zinc–Air Batteries

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

Published: March 26, 2024

Zinc-air batteries (ZABs) are promising energy storage systems because of high theoretical density, safety, low cost, and abundance zinc. However, the slow multi-step reaction oxygen heavy reliance on noble-metal catalysts hinder practical applications ZABs. Therefore, feasible advanced non-noble-metal electrocatalysts for air cathodes need to be identified promote catalytic reaction. In this review, we initially introduced advancement ZABs in past two decades provided an overview key developments field. Then, discussed working mechanism design bifunctional from perspective morphology design, crystal structure tuning, interface strategy, atomic engineering. We also included studies, machine learning, characterization technologies provide a comprehensive understanding structure-performance relationship pathways redox reactions. Finally, challenges prospects related designing

Language: Английский

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Recent advances in Fe-N-C- and Co-N-C-based materials as bifunctional electrocatalysts for oxygen reduction and oxygen evolution

Science China Chemistry, Journal Year: 2023, Volume and Issue: 67(4), P. 1137 - 1160

Published: Dec. 5, 2023

Language: Английский

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Self-catalyzed Co, N-doped carbon nanotubes-grafted hollow carbon polyhedrons as efficient trifunctional electrocatalysts for zinc-air batteries and self-powered overall water splitting

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 643, P. 162 - 173

Published: April 9, 2023

Language: Английский

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Spatial separation strategy to construct N/S co-doped carbon nanobox embedded with asymmetrically coupled Fe-Co pair-site for boosted reversible oxygen electrocatalysis

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 653, P. 1577 - 1587

Published: Sept. 22, 2023

Language: Английский

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Understanding the mechanism and synergistic interaction of cobalt-based electrocatalysts containing nitrogen-doped carbon for 4 e⁻ ORR

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(19), P. 10095 - 10124

Published: Jan. 1, 2023

Considering that the cathodic oxygen reduction reaction (ORR) is sluggish, it necessary to develop efficient and durable catalysts accelerate this reaction.

Language: Английский

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Cu nanoclusters activating ultrafine Fe3N nanoparticles via the Mott-Schottky effect for rechargeable zinc-air batteries

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 326, P. 122415 - 122415

Published: Jan. 25, 2023

Language: Английский

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