Electrochemical Nitrate Reduction: Ammonia Synthesis and the Beyond

Advanced Materials, Год журнала: 2023, Номер 36(17)

Опубликована: Июнь 9, 2023

Natural nitrogen cycle has been severely disrupted by anthropogenic activities. The overuse of N-containing fertilizers induces the increase nitrate level in surface and ground waters, substantial emission oxides causes heavy air pollution. Nitrogen gas, as main component air, used for mass ammonia production over a century, providing enough nutrition agriculture to support world population increase. In last decade, researchers have made great efforts develop processes under ambient conditions combat intensive energy consumption high carbon associated with Haber-Bosch process. Among different techniques, electrochemical reduction reaction (NO

Язык: Английский

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Atomic coordination environment engineering of bimetallic alloy nanostructures for efficient ammonia electrosynthesis from nitrate

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(32)

Опубликована: Июль 31, 2023

Electrochemical nitrate reduction reaction (NO 3 RR) to ammonia has been regarded as a promising strategy balance the global nitrogen cycle. However, it still suffers from poor Faradaic efficiency (FE) and limited yield rate for production on heterogeneous electrocatalysts, especially in neutral solutions. Herein, we report one-pot synthesis of ultrathin nanosheet-assembled RuFe nanoflowers with low-coordinated Ru sites enhance NO RR performances electrolyte. Significantly, exhibit outstanding FE 92.9% 38.68 mg h −1 cat (64.47 ) at −0.30 −0.65 V (vs. reversible hydrogen electrode), respectively. Experimental studies theoretical calculations reveal that are highly electroactive an increased d-band center guarantee efficient electron transfer, leading low energy barriers reduction. The demonstration rechargeable zinc-nitrate batteries large-specific capacity using indicates their great potential next-generation electrochemical systems.

Язык: Английский

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Zn-based batteries for sustainable energy storage: strategies and mechanisms

Chemical Society Reviews, Год журнала: 2024, Номер 53(10), С. 4877 - 4925

Опубликована: Янв. 1, 2024

This review systematically summarizes various redox mechanisms in Zn-based batteries and design strategies to improve their electrochemical performance, which provides a reference for future development of high-performance batteries.

Язык: Английский

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Metal-sulfide-based heterojunction photocatalysts: Principles, impact, applications, and in-situ characterization

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Год журнала: 2023, Номер 49, С. 42 - 67

Опубликована: Июнь 1, 2023

Язык: Английский

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Magnesium-based energy materials: Progress, challenges, and perspectives

Journal of Magnesium and Alloys, Год журнала: 2023, Номер 11(11), С. 3896 - 3925

Опубликована: Сен. 29, 2023

Magnesium-based energy materials, which combine promising energy-related functional properties with low cost, environmental compatibility and high availability, have been regarded as fascinating candidates for sustainable conversion storage. In this review, we provide a timely summary on the recent progress in three types of important Mg-based based fundamental strategies composition structure engineering. With regard to materials batteries, systematically review analyze different material systems, regulation well relevant performance Mg-ion batteries (MIBs) Mg-air (MABs), covering cathodes, electrolytes, anodes MIBs, MABs; hydrogen storage discuss how catalyst adding, composite, alloying nanostructuring improve kinetic thermodynamic de/hydrogenation reactions, particular, impacts modification absorption/dissociation processes free mechanism are focused; regarding thermoelectric relations between composition/structure electrical/thermal transport Mg3X2 (X = Sb, Bi), Mg2X Si, Ge, Sn) MgAgSb-based together representative research each system, summarized discussed. Finally, by pointing out remaining challenges providing possible solutions, aims shed light directions perspectives practical applications magnesium-based future.

Язык: Английский

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Crystal Phase Engineering of Ultrathin Alloy Nanostructures for Highly Efficient Electroreduction of Nitrate to Ammonia

Advanced Materials, Год журнала: 2024, Номер 36(14)

Опубликована: Янв. 26, 2024

Abstract Electrocatalytic nitrate reduction reaction (NO 3 RR) toward ammonia synthesis is recognized as a sustainable strategy to balance the global nitrogen cycle. However, it still remains great challenge achieve highly efficient production due complex proton‐coupled electron transfer process in NO RR. Here, controlled of RuMo alloy nanoflowers (NFs) with unconventional face‐centered cubic (fcc) phase and hexagonal close‐packed/fcc heterophase for RR reported. Significantly, fcc NFs demonstrate high Faradaic efficiency 95.2% large yield rate 32.7 mg h −1 cat at 0 −0.1 V (vs reversible hydrogen electrode), respectively. In situ characterizations theoretical calculations have unraveled that possess highest d‐band center superior electroactivity, which originates from strong Ru─Mo interactions intrinsic activity phase. The optimal electronic structures supply adsorption key intermediates suppression competitive evolution, further determines remarkable performance. successful demonstration high‐performance zinc‐nitrate batteries suggests their substantial application potential electrochemical energy systems.

Язык: Английский

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Microstructures of layered Ni-rich cathodes for lithium-ion batteries

Chemical Society Reviews, Год журнала: 2024, Номер 53(9), С. 4707 - 4740

Опубликована: Янв. 1, 2024

The microstructural degradation, stabilization, and characterization of layered Ni-rich cathodes for Li-ion batteries are comprehensively reviewed in this paper.

Язык: Английский

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Defect Engineering in Nanocatalysts: From Design and Synthesis to Applications

Advanced Functional Materials, Год журнала: 2024, Номер 34(29)

Опубликована: Фев. 13, 2024

Abstract Defect engineering is an emerging technology for tailoring nanomaterials' characteristics and catalytic performance in various applications. Recently, defect‐engineered nanoparticles have emerged as highly researched materials applications because of their exceptional redox reaction capabilities physicochemical optical properties. The properties nanomaterials can be readily adjusted by controlling the nature concentration defects within nanoparticles, avoiding need intricate design strategies. This review investigates defect nanocatalysts, including design, fabrication, Initially, categories strategies nanomaterial impacts on nanocatalysts' electronic surface properties, activity, selectivity, stability are summarized. Then, processes uses, gas sensing, hydrogen (H 2 ) evolutions, water splitting, reductions carbon dioxide (CO nitrogen to value‐aided products, pollutant degradation, biomedical (oncotherapy, antibacterial wound healing, biomolecular sensing) discussed. Finally, limitations prospective paths allowing logical optimization nanocatalytic long‐term efficient also examined. comprehensive gives unique insights into current state nanocatalysts inspires future research exploiting shortcomings improve customize performance.

Язык: Английский

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Constructing molecule-metal relay catalysis over heterophase metallene for high-performance rechargeable zinc-nitrate/ethanol batteries

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(50)

Опубликована: Дек. 8, 2023

Zinc-nitrate batteries can integrate energy supply, ammonia electrosynthesis, and sewage disposal into one electrochemical device. However, current zinc-nitrate still severely suffer from the limited density poor rechargeability. Here, we report synthesis of tetraphenylporphyrin (tpp)-modified heterophase (amorphous/crystalline) rhodium-copper alloy metallenes (RhCu M-tpp). Using RhCu M-tpp as a bifunctional catalyst for nitrate reduction reaction (NO

Язык: Английский

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Electronic Structure Design of Transition Metal-Based Catalysts for Electrochemical Carbon Dioxide Reduction

ACS Nano, Год журнала: 2024, Номер 18(14), С. 9823 - 9851

Опубликована: Март 28, 2024

With the increasingly serious greenhouse effect, electrochemical carbon dioxide reduction reaction (CO2RR) has garnered widespread attention as it is capable of leveraging renewable energy to convert CO2 into value-added chemicals and fuels. However, performance CO2RR can hardly meet expectations because diverse intermediates complicated processes, necessitating exploitation highly efficient catalysts. In recent years, with advanced characterization technologies theoretical simulations, exploration catalytic mechanisms gradually deepened electronic structure catalysts their interactions intermediates, which serve a bridge facilitate deeper comprehension structure-performance relationships. Transition metal-based (TMCs), extensively applied in CO2RR, demonstrate substantial potential for further modulation, given abundance d electrons. Herein, we discuss representative feasible strategies modulate catalysts, including doping, vacancy, alloying, heterostructure, strain, phase engineering. These approaches profoundly alter inherent properties TMCs interaction thereby greatly affecting rate pathway CO2RR. It believed that rational design modulation fundamentally provide viable directions development toward conversion many other small molecules.

Язык: Английский

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