Defect engineering: the role of cationic vacancies in photocatalysis and electrocatalysis

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(44), P. 23653 - 23682

Published: Jan. 1, 2023

Defect engineering is an effective strategy to control the performance of photocatalyst and electrocatalyst. This review highlights key role cationic vacancy from aspects synthesis methods, testing techniques applications.

Language: Английский

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P‐Block Metal‐Based Electrocatalysts for Nitrogen Reduction to Ammonia: A Minireview

Small, Journal Year: 2023, Volume and Issue: 19(16)

Published: Jan. 6, 2023

Electrochemical nitrogen reduction reaction (NRR) to ammonia (NH3 ) using renewable electricity provides a promising approach towards carbon neutral. What's more, it has been regarded as the most alternative traditional Haber-Bosch route in current context of developing sustainable technologies. The development class highly efficient electrocatalysts with high selectivity and stability is key electrochemical NRR. Among them, P-block metal-based have significant application potential NRR for which possessing strong interaction N 2p orbitals. Thus, offers good NH3 . density state (DOS) near Fermi level concentrated catalysts, indicating ability metal active sites N2 adsorption activation by donating p electrons. In this work, we systematically review recent progress effect on activity, are discussed. Specifically, catalyst design, nature some strategies boosting performance, mechanism, impact operating conditions unveiled. Finally, challenges outlooks proposed.

Language: Английский

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Electrochemical Nitrogen Fixation for Green Ammonia: Recent Progress and Challenges

Advanced Science, Journal Year: 2023, Volume and Issue: 10(23)

Published: June 8, 2023

Ammonia, a key feedstock used in various industries, has been considered sustainable fuel and energy storage option. However, NH

Language: Английский

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D-band center modulation of B-mediated FeS2 to activate molecular nitrogen for electrocatalytic ammonia synthesis

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 343, P. 123474 - 123474

Published: Nov. 7, 2023

Language: Английский

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Strategies to achieve effective nitrogen activation

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(5)

Published: Feb. 23, 2024

Abstract Ammonia serves as a crucial chemical raw material and hydrogen energy carrier. Aqueous electrocatalytic nitrogen reduction reaction (NRR), powered by renewable energy, has attracted tremendous interest during the past few years. Although some achievements have been revealed in aqueous NRR, significant challenges also identified. The activity selectivity are fundamentally limited activation competitive evolution. This review focuses on hurdles of delves into complementary strategies, including materials design system optimization (reactor, electrolyte, mediator). Then, it introduces advanced interdisciplinary technologies that recently emerged for using high‐energy physics such plasma triboelectrification. With better understanding corresponding mechanisms coming years, these potential to be extended further applications. provides insight stability different systems. We then recommend rigorous detailed protocol investigating NRR performance highlight several research directions this exciting field, coupling with applications, situ/operando characterizations, theoretical calculations.

Language: Английский

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Transition metal sulfides: From design strategies to environmental and energy-related applications

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216237 - 216237

Published: Oct. 4, 2024

Language: Английский

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Sulphidation of Cu²⁺, CuO and Cu₂O within the matrix of carboxylic cation exchangers – compositional, morphological and thermal properties of Cu_xS containing composites

Reaction Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

New hybrid cation exchangers containing Cu x S clusters. Sulfidation product depends on the type of HIX and precursor. Copper sulfur are distributed throughout entire volume HIXs. High thermal stability prepared

Language: Английский

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Sustainable Carbon‐Based Catalyst Materials Derived From Lignocellulosic Biomass for Energy Storage and Conversion: Atomic Modulation and Properties Improvement

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

ABSTRACT Carbon electrocatalyst materials based on lignocellulosic biomass with multi‐components, various dimensions, high carbon content, and hierarchical morphology structures have gained great popularity in electrocatalytic applications recently. Due to the catalytic deficiency of neutral atoms, usage single lignocellulosic‐based electrocatalysis involving energy storage conversion presents unsatisfactory applicability. However, atomic‐level modulation lignocellulose‐based can optimize electronic structures, charge separation, transfer processes, so forth, which results substantially enhanced performance carbon‐based catalysts. This paper reviews recent advances rational design as electrocatalysts from an perspective, such self/external heteroatom doping metal modification. Then, through systematic discussion principles reaction mechanisms catalysts, prepared catalysts rechargeable batteries are reviewed. Finally, challenges improving prospects diverse review contributes synthesis strategy via modulation, turn promotes lignocellulose valorization for conversion.

Language: Английский

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Synergistic Interaction of MoS₂ Nanoflakes on La₂Zr₂O₇ Nanofibers for Improving Photoelectrochemical Nitrogen Reduction

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(28), P. 31889 - 31899

Published: July 11, 2022

Ammonia is a suitable hydrogen carrier with each molecule accounting for up to 17.65% of by mass. Among various potential ammonia production methods, we adopt the photoelectrochemical (PEC) technique, which uses solar energy as well electricity efficiently synthesize under ambient conditions. In this article, report MoS2@La2Zr2O7 heterostructures designed incorporating two-dimensional (2D)-MoS2 nanoflakes on La2Zr2O7 nanofibers (MoS2@LZO) photoelectrocatalysts. The MoS2@LZO are synthesized facile hydrothermal route electrospun and Mo precursors. work synergistically amend drawbacks individual MoS2 electrocatalysts. addition, harmonious activity mixed phase pyrochlore/defect fluorite-structured generates an interface that aids in increased electrocatalytic enriching oxygen vacancies system. electrocatalyst exhibits enhanced Faradaic efficiency yield approximately 2.25% 10.4 μg h-1 cm-2, respectively, compared their corresponding pristine samples. Therefore, mechanism improving PEC performance coupling oxygen-vacant sites 2D-semiconductor-based electrocatalysts has been achieved. This provides strategy improve catalysts designing efficient heterostructure applications.

Language: Английский

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Metal–Organic Frameworks as Electrocatalysts

Angewandte Chemie, Journal Year: 2022, Volume and Issue: 135(9)

Published: Dec. 5, 2022

Abstract Transition metal complexes are well‐known homogeneous electrocatalysts. In this regard, metal–organic frameworks (MOFs) can be considered as an ensemble of transition ordered in a periodic arrangement. addition, MOFs have several additional positive structural features that make them suitable for electrocatalysis, including large surface area, high porosity, and content accessible with exchangeable coordination positions. The present review describes the current state use electrocatalysts, both host electroactive guests their direct electrocatalytic activity, particularly case bimetallic MOFs. field MOF‐derived materials is purposely not covered, focusing on or its composites Special attention has been paid to strategies overcome poor electrical conductivity limited stability.

Language: Английский

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