Atomic Gap-State Engineering of MoS2 for Alkaline Water and Seawater Splitting DOI
Tao Sun, Tong Yang, Wenjie Zang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 11, 2025

Transition-metal dichalcogenides (TMDs), such as molybdenum disulfide (MoS2), have emerged a generation of nonprecious catalysts for the hydrogen evolution reaction (HER), largely due to their theoretical adsorption energy close that platinum. However, efforts activate basal planes TMDs primarily centered around strategies introducing numerous atomic vacancies, creating vacancy–heteroatom complexes, or applying significant strain, especially acidic media. These approaches, while potentially effective, present substantial challenges in practical large-scale deployment. Here, we report gap-state engineering strategy controlled activation S atom MoS2 through metal single-atom doping, effectively tackling both efficiency and stability alkaline water seawater splitting. A versatile synthetic methodology allows fabrication series single-metal atom-doped materials (M1/MoS2), featuring widely tunable densities with each dopant replacing Mo site. Among these (Mn1, Fe1, Co1, Ni1), Co1/MoS2 demonstrates outstanding HER performance media, overpotentials at mere 159 164 mV 100 mA cm–2, Tafel slopes 41 45 dec–1, respectively, which surpasses all reported TMD-based benchmark Pt/C during splitting, can be attributed an optimal modulation associated sulfur atoms. Experimental data correlating doping density identity performance, conjunction calculations, also reveal descriptor linked near-Fermi gap state modulation, corroborated by observed increase unoccupied 3p states.

Language: Английский

Layered Double Hydroxides with Carbonate Intercalation as Ultra‐Stable Anodes for Seawater Splitting at Ampere‐Level Current Density DOI
Peng‐Jun Deng, Yang Liu, Huili Liu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(23)

Published: April 21, 2024

Abstract Owing to the presence of a substantial concentration chlorine in seawater, anode still faces severe corrosion, especially water splitting operated at high current densities. Herein, cost‐effective and scalable NiFe layered double hydroxides with carbonate intercalation (named as LDH_CO 3 2− ) are synthesized utilizing etching‐hydrolysis ion exchange strategies under ambient conditions. Experimental findings demonstrate that shows excellent stability 500 1000 mA cm −2 for h alkaline simulated seawater. Additionally, two‐electrode system offers great densities ranging from 100 over duration 400 This remarkably catalytic can be ascribed strategies. The strategy leads an integrated electrode catalyst‐carrier, enhancing adhesion between them, retarding hence divorce catalysts carrier. Theoretical calculations suggest weakens adsorbability on hinders coupling metal atoms chlorine, thereby impeding corrosion caused by improving stability. More importantly, this has been extended preparation other intercalation.

Language: Английский

Citations

31
A comprehensive review on hydrogen production, storage, and applications DOI
Chamila Gunathilake,

Ibrahim Soliman,

Dhruba Panthi

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

There is a need for zero or low-carbon fuels that can produce electricity, power vehicles, and support industry. This review presents production, storage, applications of hydrogen with emphasis on decarbonization transportation.

Language: Английский

Citations

30
Selective Electrocatalytic Conversion of Nitric Oxide to High Value‐Added Chemicals DOI Creative Commons
Dongdong Wang, Xue Feng Lu, Deyan Luan

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(18)

Published: Jan. 25, 2024

The artificial disturbance in the nitrogen cycle has necessitated an urgent need for nitric oxide (NO) removal. Electrochemical technologies NO conversion have gained increasing attention recent years. This comprehensive review presents advancements selective electrocatalytic of to high value-added chemicals, with specific emphasis on catalyst design, electrolyte composition, mass diffusion, and adsorption energies key intermediate species. Furthermore, explores synergistic electrochemical co-electrolysis carbon source molecules, enabling synthesis a range valuable chemicals C─N bonds. It also provides in-depth insights into intricate reaction pathways underlying mechanisms, offering perspectives challenges prospects electrolysis. By advancing comprehension fostering awareness balance, this contributes development efficient sustainable systems from NO.

Language: Английский

Citations

29
Challenges and Opportunities for Single‐Atom Electrocatalysts: From Lab‐Scale Research to Potential Industry‐Level Applications DOI Creative Commons
Chen Jia, Qian Sun, Ruirui Liu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 13, 2024

Single-atom electrocatalysts (SACs) are a class of promising materials for driving electrochemical energy conversion reactions due to their intrinsic advantages, including maximum metal utilization, well-defined active structures, and strong interface effects. However, SACs have not reached full commercialization broad industrial applications. This review summarizes recent research achievements in the design crucial electrocatalytic on sites, coordination, substrates, as well synthesis methods. The key challenges facing activity, selectivity, stability, scalability, highlighted. Furthermore, it is pointed out new strategies address these increasing activity enhancing utilization improving optimizing local environment, developing fabrication techniques, leveraging insights from theoretical studies, expanding potential Finally, views offered future direction single-atom electrocatalysis toward commercialization.

Language: Английский

Citations

26
Enhancing electrochemical performance and corrosion resistance of nickel-based catalysts in seawater electrolysis: focusing on OER and HER DOI

Yuemin Xin,

Qianqian Hua,

Chengjie Li

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(35), P. 23147 - 23178

Published: Jan. 1, 2024

Hydrogen production by electrochemical hydrogen evolution reaction (HER) using eco-friendly seawater electrolysis can help address the energy shortage.

Language: Английский

Citations

25
Coupled amorphous NiFeP/cystalline Ni3S2 nanosheets enables accelerated reaction kinetics for high current density seawater electrolysis DOI
Yanyan Song, Xiaoyan Zhang,

Zhengyi Xiao

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 352, P. 124028 - 124028

Published: April 21, 2024

Language: Английский

Citations

24
High-entropy alloy electrocatalysts go to (sub-)nanoscale DOI Creative Commons
Menggang Li,

Fangxu Lin,

Shipeng Zhang

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(23)

Published: June 5, 2024

Alloying has proven power to upgrade metallic electrocatalysts, while the traditional alloys encounter limitation for optimizing electronic structures of surface sites in a continuous manner. High-entropy (HEAs) overcome this by manageably tuning adsorption/desorption energies reaction intermediates. Recently, marriage nanotechnology and HEAs made considerable progresses renewable energy technologies, showing two important trends size diminishment multidimensionality. This review is dedicated summarizing recent advances that are rationally designed electrocatalysis. We first explain advantages as electrocatalysts from three aspects: high entropy, nanometer, multidimension. Then, several structural regulation methods proposed promote electrocatalysis HEAs, involving thermodynamically nonequilibrium synthesis, regulating (sub-)nanosize anisotropic morphologies, well engineering atomic ordering. The general relationship between electrocatalytic properties further discussed. Finally, we outline remaining challenges field, aiming inspire more sophisticated HEA-based nanocatalysts.

Language: Английский

Citations

21
Innovations in Electrocatalysts, Hybrid Anodic Oxidation, Eelectrolyzers for Enhanced Direct Seawater Electrolysis DOI
Dong Liu,

Yaohai Cai,

Xin Wang

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 6897 - 6942

Published: Jan. 1, 2024

This review focuses on the latest developments in direct seawater electrolysis, specifically electrocatalysts, hybrid anodic oxidation, and electrolyzers, providing a glimpse into future of environmentally friendly hydrogen generation.

Language: Английский

Citations

21
Interfacial Electronic Modification of Nickel Phosphide via Iron Doping: An Efficient Bifunctional Catalyst for Water/Seawater Splitting DOI
Alagan Muthurasu, Tae Hoon Ko, Tae Woo Kim

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 16, 2024

Abstract Seawater electrolysis is an innovative technique that can potentially transform hydrogen production and contribute to environmental redemption. However, the lack of good bifunctional electrocatalysts may hinder further development this technology. Herein, nickel hydroxide nanosheets be employed as a precursor producing 3D Prussian blue analogue (PBA) with distinct dimensional structure. Nickel are formed within foam undergo reaction potassium ferricyanide (K 3 [Fe(CN) 6 ]). The structure sheets‐like well‐preserved, containing multitude PBA nanocubes. Following phosphidation at 350 °C, iron‐doped phosphide (Fe‐doped Ni 2 P (1.0 m M ) nanosheets) demonstrates remarkable potential electrocatalyst for total water/seawater splitting. This exceptional performance in overall water splitting, achieving current densities 100 500 mA cm −2 1.0 KOH remarkably low voltages 1.65 2.06 V, respectively. Additionally, its improved ability resist corrosion hydrophilic surface makes it suitable seawater splitting process. material generate KOH, resulting 1.74 2.32 V. These outstanding results, together durability, indicate material's strong practical electrolysis.

Language: Английский

Citations

20
Bimetallic Single-Atom Catalysts for Water Splitting DOI Creative Commons
Megha A. Deshmukh, Aristides Bakandritsos, Radek Zbořil

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Sept. 25, 2024

Abstract Green hydrogen from water splitting has emerged as a critical energy vector with the potential to spearhead global transition fossil fuel-independent society. The field of catalysis been revolutionized by single-atom catalysts (SACs), which exhibit unique and intricate interactions between atomically dispersed metal atoms their supports. Recently, bimetallic SACs (bimSACs) have garnered significant attention for leveraging synergistic functions two ions coordinated on appropriately designed BimSACs offer an avenue rich metal–metal metal–support cooperativity, potentially addressing current limitations in effectively furnishing transformations involve synchronous proton–electron exchanges, substrate activation reversible redox cycles, simultaneous multi-electron transfer, regulation spin states, tuning electronic properties, cyclic states low energies. This review aims encapsulate growing advancements bimSACs, emphasis pivotal role generation via splitting. We subsequently delve into advanced experimental methodologies elaborate characterization SACs, elucidate discuss local coordination environment. Overall, we present comprehensive discussion deployment bimSACs both evolution reaction oxygen reaction, half-reactions electrolysis process.

Language: Английский

Citations

19