Ceramics International, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
This review focuses on the synthesis and characterization of defective electrocatalysts, internal correlation between defects catalytic activity, development application electrocatalysts in various fields.
Language: Английский
Citations
29
EcoEnergy, Journal Year: 2024, Volume and Issue: 2(1), P. 45 - 82
Published: Feb. 22, 2024
Abstract Metal suboxides have emerged as a class of promising candidates for many electrocatalytic applications owing to their enhanced electrical conductivity and chemical activities. In this review, we summarized the recent progress metal suboxides. We firstly introduced discovery suboxides, categories according element tables. Then various synthetic methods been systematically illustrated involving solid‐state synthesis, high‐temperature low‐temperature synthesis plasma‐driven methods, etc. addition, demonstrated in field water, carbon nitrogen cycle‐based energy catalysis technologies electrochemical hydrogen evolution reaction, oxygen reduction dioxide reduction, urea oxidation methanol reaction nitrate Finally, make brief conclusion about developments giving an outlook future research challenges. These insights are expected hold promise developing suboxide catalysts toward practical applications.
Language: Английский
Citations
28
Interdisciplinary materials, Journal Year: 2024, Volume and Issue: 3(2), P. 245 - 269
Published: Feb. 28, 2024
Abstract The electrochemical nitrate reduction reaction (NO 3 RR) holds promise for ecofriendly removal. However, the challenge of achieving high selectivity and efficiency in electrocatalyst systems still significantly hampers mechanism understanding large‐scale application. Tandem catalysts, comprising multiple catalytic components working synergistically, offer promising potential improving NO RR. This review highlights recent progress designing tandem catalysts RR, including noble metal‐related system, transition metal electrocatalysts, pulsed electrocatalysis strategies. Specifically, optimization active sites, interface engineering, synergistic effects between catalyst components, various situ technologies, theory simulations are discussed detail. Challenges opportunities development scaling up RR further discussed, such as stability, durability, mechanisms. By outlining possible solutions future design, this aims to open avenues efficient comprehensive insights into mechanisms energy sustainability environmental safety.
Language: Английский
Citations
28
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
Abstract Oxygen vacancy (V O ) engineering is widely regarded as a key strategy for enhancing CoMo‐based catalysts oxygen evolution reaction (OER) while understanding their formation mechanisms and role in boosting OER activity remains significant challenge. Herein, CoMoO x system doped developed with different 3 d ‐orbital atoms M (V, Ni, Zn, Mn) to investigate the construction stabilization of V its crucial performance. In situ ex measurements along theoretical calculations demonstrate that doping adjusts bandgap between CoMo‐ ‐p orbitals, leading transfer electrons from O‐ p orbitals M‐ thereby promoting . The leads an upshifted ‐band center, optimizing desorption intermediates on ‐CoMoVO lowering energy barrier rate‐determining step (RDS), catalyst's activity. Additionally, promotes electron Co atoms, stabilizing ultimately improving stability. resulting catalyst delivered attractive (overpotential 248 mV at 10 mA cm −2 durability over 600 h. This study offers rational method designing efficient electrocatalysts.
Language: Английский
Citations
2
ACS Nano, Journal Year: 2024, Volume and Issue: 18(27), P. 17642 - 17650
Published: June 24, 2024
Electrocatalytic nitrogen oxidation reaction (NOR) can convert (N2) into nitrate (NO3–) under ambient conditions, providing an attractive approach for synthesis of NO3–, alternative to the current involving harsh Haber–Bosch and Ostwald processes that necessitate high temperature, pressure, substantial carbon emission. Developing efficient NOR catalysts is a prerequisite, which remains formidable challenge, owing weak activation/dissociation N2. A variety electrocatalysts have been developed, but their kinetics are still extremely sluggish, resulting in inferior Faradaic Efficiencies. Here, we report high-entropy Ru-based perovskite oxide (denoted as Ru-HEP) function high-performance catalyst exhibit NO3– yield rate 39.0 μmol mg–1 h–1 with Efficiency 32.8%. Both our experimental results theoretical calculations suggest configuration Ru-HEP markedly enhance oxygen-vacancy concentration, where Ru sites neighboring oxygen vacancies serve unsaturated centers decrease overall energy barrier N2 electrooxidation, thereby leading promoted kinetics. This work presents avenue promoting catalysis on oxides through engineering strategy.
Language: Английский
Citations
16
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)
Published: March 13, 2024
Abstract It is a great challenge to induce the formation of RuP 4 phase and realize construction metal‐rich phase/phosphorus‐rich phase‐ruthenium phosphide heterostructure by directional regulation proportion P metal atoms. The ultra‐high conductivity Ru 2 excellent ability V‐doped absorb/desorb H* are confirmed density functional theory (DFT) calculations, which laid theoretical foundation for unique P/V‐RuP structure accelerate HER reaction kinetics. This work innovatively uses V‐doping strategy with high intrinsic activity, finally construct V‐Ru x y nanosheets rich Ru/Ru heterostructures. Thanks optimization V dopants, catalyst only needs 180 mV obtain an industrial‐grade current 1 A cm −2 . In summary, this provides new idea design performance ruthenium‐based catalysts.
Language: Английский
Citations
15
Sustainable Energy & Fuels, Journal Year: 2024, Volume and Issue: 8(16), P. 3476 - 3495
Published: Jan. 1, 2024
Flatland materials were meticulously surveyed to explore their functionality in photochemical and electrochemical nitrogen reduction reaction applications. New insights are presented for pilot-scale NRR operations via 2D materials.
Language: Английский
Citations
13
Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124367 - 124367
Published: July 4, 2024
Language: Английский
Citations
13
Nano Energy, Journal Year: 2024, Volume and Issue: 131, P. 110216 - 110216
Published: Sept. 6, 2024
Language: Английский
Citations
11
SusMat, Journal Year: 2024, Volume and Issue: 4(4)
Published: July 11, 2024
Abstract Electrochemical nitrogen reduction reaction (NRR) is a sustainable alternative to the Haber‒Bosch process for ammonia (NH 3 ) production. However, significant uphill energy in multistep NRR pathway bottleneck favorable serial reactions. To overcome this challenge, we designed vanadium oxide/nitride (V 2 O /VN) hybrid electrocatalyst which V and VN coexist coherently at heterogeneous interface. Since single‐phase exhibit different surface catalytic kinetics NRR, /VN can provide alternating pathways, selecting lower each material pathway. As result, yield of was 219.6 µg h −1 cm −2 , Faradaic efficiency 18.9%, much higher than that VN, x y solid solution catalysts without heterointerfaces. Density functional theory calculations confirmed composition these electrocatalysts allows proceed from low‐energy through migration adsorption intermediate species. Therefore, design metal hybrids with coherent heterointerfaces provides novel strategy synthesizing highly efficient electrochemical induce steps progression NRR.
Language: Английский
Citations
10