An overview of metal hydroxyfluoride–A novel semiconductor material DOI Creative Commons

Xingyu Yao,

Rutao Wang, Jinbo Zhao

et al.

ChemPhysMater, Journal Year: 2023, Volume and Issue: 3(2), P. 125 - 142

Published: July 28, 2023

Semiconductors have been widely used in many high-tech fields such as photo- and electro-catalysis, ion batteries, solar cells. In addition to the earliest discovered elemental compound semiconductors, monocrystalline silicon metal oxides, new types of semiconductors discovered. Among them, hydroxyfluorides (MOHF) are an emerging type semiconductor that easy synthesize inexpensive. However, their properties applications not well understood. Nevertheless, some MOHF materials, ZnOHF CoOHF, sufficiently developed, extensively explored. This review focuses on a semiconductor, MOHF, with CoOHF. After short introduction physical chemical properties, common illustrated several examples. Subsequently, other less-researched MOHF-like applications, discussed. Moreover, expectations development directions MOHFs briefly summarized.

Language: Английский

Electronic Structure Design of Transition Metal-Based Catalysts for Electrochemical Carbon Dioxide Reduction DOI Creative Commons
Liang Guo, Jingwen Zhou, Fu Liu

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(14), P. 9823 - 9851

Published: March 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.

Language: Английский

Citations

34
Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis DOI Open Access
Mengyu Chen, Jingqi Guan

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Oxygen electrocatalysis is a core reaction in renewable energy devices, greatly promoting the transformation and upgrading of structure. Nonetheless, performance conversion devices hindered by large overpotential slow kinetics oxygen electrocatalytic reactions. Recently, single‐atom catalysts (SACs) have emerged as promising contenders field because their exceptional metal atom utilization, distinctive coordination environment, adjustable electronic properties. This review presents latest advancements design Co‐based SACs for electrocatalysis. First, OER ORR mechanisms are introduced. Subsequently, strategies regulating structure summarized three aspects, including centers, support carriers. A particular emphasis given to relationship between properties catalysts. Afterward, applications explored. Ultimately, challenges prospects prospected.

Language: Английский

Citations

2
One-step synthesized Bi5O7I for extremely low-temperature CO2 electroreduction DOI Open Access
Mengjie Liu, Yuchao Wang, Tingting Yu

et al.

Science Bulletin, Journal Year: 2023, Volume and Issue: 68(12), P. 1238 - 1242

Published: May 18, 2023

Language: Английский

Citations

29
Ru–W Pair Sites Enabling the Ensemble Catalysis for Efficient Hydrogen Evolution DOI Creative Commons

Weilong Ma,

Xiaoyu Yang, Dingding Li

et al.

Advanced Science, Journal Year: 2023, Volume and Issue: 10(26)

Published: July 12, 2023

Simultaneously optimizing elementary steps, such as water dissociation, hydroxyl transferring, and hydrogen combination, is crucial yet challenging for achieving efficient evolution reaction (HER) in alkaline media. Herein, Ru single atom-doped WO2 nanoparticles with atomically dispersed Ru-W pair sites (Ru-W/WO2 -800) are developed using a crystalline lattice-confined strategy, aiming to gain HER. It found that Ru-W/WO2 -800 exhibits remarkable HER activity, characterized by low overpotential (11 mV at 10 mA cm-2 ), notable mass activity (5863 mg-1 50 mV), robust stability (500 h 250 ). The highly of attributed the synergistic effect through ensemble catalysis. Specifically, W expedite rapid transferring while accelerate combination process, synergistically facilitating activity. This study opens promising pathway tailoring coordination environment atomic-scale catalysts achieve electro-catalysis.

Language: Английский

Citations

26
Recent advances in Ir/Ru-based perovskite electrocatalysts for oxygen evolution reaction DOI

Zhiqi Jiang,

Chengzhen Fan,

Junyu Pan

et al.

Rare Metals, Journal Year: 2024, Volume and Issue: 43(7), P. 2891 - 2912

Published: April 15, 2024

Language: Английский

Citations

10
Innovative asymmetric CoSA‐N‐Ti3C2Tx catalysis: unleashing superoxide radicals for rapid self‐coupling removal of phenolic pollutant DOI Open Access
Miao Li,

Zhiyan Feng,

Xingzhong Yuan

et al.

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

The polymerization pathway of contaminants rivals the traditional mineralization in water purification technologies. However, designing suitable oxidative environments to steer toward remains challenging. This study introduces a nitrogen-oxygen double coordination strategy create an asymmetrical microenvironment for Co atoms on Ti3C2Tx MXenes, resulting novel Co-N2O3 microcellular structure that efficiently activates peroxymonosulfate. unique activation capability led complete removal various phenolic pollutants within 3 min, outperforming representative single-atom catalysts reported past three years. Identifying and recognizing reactive oxygen species highlight crucial role ⋅O2 -. efficient pollutant occurs through --mediated radical pathway, functioning as self-coupling reaction rather than deep oxidation. Theoretical calculations demonstrate electron-rich transfer more electrons catalyst surface, inducing reduction dissolved - microregion. In practical continuous flow-through application, system achieved 100 % acetaminophen efficiency 6.5 h, with hydraulic retention time just 0.98 s. provides new insights into previously underappreciated purification, offering simple advancing aggregation technology field wastewater treatment.

Language: Английский

Citations

1
Hierarchical Dual Single-Atom Catalysts with Coupled CoN4 and NiN4 Moieties for Industrial-Level CO2 Electroreduction to Syngas DOI
Yiqun Chen, Minqi Xia, Zhou Cao

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(21), P. 22095 - 22105

Published: Nov. 2, 2023

Renewable-driven electrochemical CO2 reduction reaction (CO2RR) to syngas is an encouraging alternative strategy traditional fossil fuel-based production, and the development of industrial-level electrocatalysts vital. Herein, based on theoretical optimization metal species, hierarchical CoxNi1-x-N-C dual single-atom catalyst (DSAC) with individual NiN4 (CO preferential) CoN4 (H2 moieties was constructed by a two-step pyrolysis route. The Co0.5Ni0.5-N-C exhibits stable CO Faradaic efficiency 50 ± 5% current density 101-365 mA cm-2 in ultrawide potential window -0.5 -1.1 V. CO/H2 ratio can be conveniently tuned regulating Co/Ni ratio. coupled effect under local high-pH microenvironment responsible for regulation selectivity yield catalyst, which not present mixed Co-N-C Ni-N-C catalyst. This study provides promising DSAC achieving production via CO2RR.

Language: Английский

Citations

20
Towards sustainable electrochemical ammonia synthesis DOI
Ruonan Li, Wei Ma, Yujie Liu

et al.

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(35), P. 18626 - 18645

Published: Jan. 1, 2023

This perspective proposes feasible strategies to enhance the energy efficiency of electrochemical ammonia synthesis through electrocatalyst design and device optimization. Also, challenges prospects are evaluated for future development.

Language: Английский

Citations

17
Free-Standing Single-Atom Catalyst-Based Electrodes for CO2 Reduction DOI Creative Commons
M. Nur Hossain, Lei Zhang, Roberto Neagu

et al.

Electrochemical Energy Reviews, Journal Year: 2024, Volume and Issue: 7(1)

Published: Feb. 13, 2024

Abstract Electrochemical CO 2 reduction technology could solve the -induced climate warming by electrochemically converting atmospheric back into fuel, essentially recycling it and building a low carbon emission economy. However, electrochemical reaction (CO RR) poses significant challenge due to highly stable linear molecules, in addition proton-coupled multi-electron transfer process. Thus, active catalysts, placed on activity bolstering materials, permeable electrodes are crucial for RR. Single-atom catalysts (SACs) have recently garnered increasing interest electrocatalysis community their potentially high mass efficiency cost benefits (every atom is an center, resulting nearly 100% utilization) adjustable selectivity (higher uniformity of sites compared nanoparticles). preserving accessibility SACs inside electrode major materials development design challenges. A conventional layered structure SAC typically consists gas diffusion layer (GDL), microporous (MPL) catalyst (SACCL), fabricated using powder bonding this process usually encounters issues such as delamination instability weak binder-catalyst-support interface. Conversely, free-standing has potential overcome these eliminating GDL, MPL, need binder, contrast This work first reviews latest developments experimental modeling studies powdered traditional Next, examines towards high-performance . The synthesis-structure-fabrication-performance relationships SAC-based associated analyzed. Furthermore, article presents future challenges perspectives Graphical

Language: Английский

Citations

8
Electronic structure and geometric construction modulation of carbon-based single/dual atom catalysts for electrocatalysis DOI Creative Commons
Shaolong Zhang, Jing Huang,

Li Ma

et al.

Energy Reviews, Journal Year: 2024, Volume and Issue: 3(3), P. 100075 - 100075

Published: Feb. 23, 2024

Both carbon-based single atom catalysts (SACs) and dual (DACs) have garnered significant attention in the field of electrochemical reactions because impressive attributes, including exceptional catalytic activity, selectivity, cost-effectiveness. The ability to modulate electronic structure geometric construction active sites within SACs/DACs is paramount for unleashing their complete potential, which turn can ultimately dictate behavior with unprecedented precision. In this review, recent major developments regulation strategies modulating are summarized. For SACs, recently reported modulation methods categorized into four strategies, adjusting density atoms, defect engineering, confinement effect strain engineering. And DACs, five contain bonded dual-atom adjustment, non-bonded bridged metal nonmetal bilayer adjustment homogeneous adjustment. developed synthetic comprehensively summarized, especially configuration discussed detail, different applications reactions, unique mechanism highlighted. Finally, challenges prospects tailoring structures arrangements further discussed.

Language: Английский

Citations

7