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

Subsea energy storage as an enabler for floating offshore wind hydrogen production: Review and perspective DOI
Zhiwen Wang, Hu Wang, Tonio Sant

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 71, P. 1266 - 1282

Published: May 25, 2024

Language: Английский

Citations

18
Ruthenium nanoparticles decorated with surface hydroxyl and borate species boost overall seawater splitting via increased hydrophilicity DOI

Le‐Wei Shen,

Yong Wang, Ling Shen

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(11), P. 3888 - 3897

Published: Jan. 1, 2024

The surface hydroxyl and borate species in Ru–BO x –OH-300 nanocomposite have been evidenced to be crucial for efficient seawater electrolysis, due the high hydrophilicity, optimized electronic structure of Ru, weakened adsorption Cl − .

Language: Английский

Citations

17
A Comprehensive Review on Catalysts for Seawater Electrolysis DOI Creative Commons
Jihong Li,

Genyuan Fu,

Xiaokun Sheng

et al.

Advanced Powder Materials, Journal Year: 2024, Volume and Issue: 3(5), P. 100227 - 100227

Published: Aug. 15, 2024

Language: Английский

Citations

17
Long‐term Durability of Seawater Electrolysis for Hydrogen: From Catalysts to Systems DOI
Yü Liu, Yong Wang, Paolo Fornasiero

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(47)

Published: Aug. 29, 2024

Abstract Direct electrochemical seawater splitting is a renewable, scalable, and potentially economic approach for green hydrogen production in environments where ultra‐pure water not readily available. However, issues related to low durability caused by complex ions pose great challenges its industrialization. In this review, mechanistic analysis of electrolytic discussed. We critically analyze the development electrolysis identify at both anode cathode. Particular emphasis given elucidating rational strategies designing electrocatalysts/electrodes/interfaces with long lifetimes realistic including inducing passivating anion layers, preferential OH − adsorption, employing anti‐corrosion materials, fabricating protective immobilizing Cl on surface electrocatalysts, tailoring adsorption sites, inhibition binding Mg 2+ Ca , hydroxide precipitation adherence, co‐electrosynthesis nano‐sized hydroxides. Synthesis methods electrocatalysts/electrodes innovations electrolyzer are also Furthermore, prospects developing technologies clean generation summarized. found that researchers have rethought role ions, as well more attention cathodic reaction electrolyzers, which conducive accelerate commercialization electrolysis.

Language: Английский

Citations

16
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

Citations

3