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

Urea catalytic oxidation for energy and environmental applications DOI

Xintong Gao,

Shuai Zhang, Pengtang Wang

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(3), P. 1552 - 1591

Published: Jan. 1, 2024

This review evaluates state-of-the-art advances in electrocatalytic and photo(electro)catalytic urea oxidation from fundamentals materials to energy environmental applications.

Language: Английский

Citations

91
Stabilizing NiFe sites by high-dispersity of nanosized and anionic Cr species toward durable seawater oxidation DOI Creative Commons

Zhengwei Cai,

Jie Liang,

Zixiao Li

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Aug. 5, 2024

Electrocatalytic H

Language: Английский

Citations

69
Recent advances of bifunctional electrocatalysts and electrolyzers for overall seawater splitting DOI
Xiaoyan Wang,

Meiqi Geng,

Shengjun Sun

et al.

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 12(2), P. 634 - 656

Published: Dec. 2, 2023

This review summarizes advances in bifunctional electrocatalysts and electrolyzers for seawater splitting, including various catalysts ( e.g. , phosphides, chalcogenides, borides, nitrides, (oxy)hydroxides) membrane-based/membrane-less systems.

Language: Английский

Citations

51
Grain boundary engineering: An emerging pathway toward efficient electrocatalysis DOI Creative Commons
Xiaomin Xu, Yijun Zhong, Magdalena Wajrak

et al.

InfoMat, Journal Year: 2024, Volume and Issue: 6(8)

Published: July 16, 2024

Abstract Electrochemical transformation processes involving carbon, hydrogen, oxygen, nitrogen, and small‐molecule chemistries represent a promising means to store renewable energy sources in the form of chemical energy. However, their widespread deployment is hindered by lack efficient, selective, durable, affordable electrocatalysts. Recently, grain boundary (GB) engineering as one category defect engineering, has emerged viable powerful pathway achieve improved electrocatalytic performances. This review presents timely comprehensive overview recent advances GB for efficient electrocatalysis. The beneficial effects introducing GBs into electrocatalysts are discussed, followed an synthesis characterization GB‐enriched Importantly, latest developments leveraging enhanced electrocatalysis thoroughly examined, focusing on electrochemical utilization cycles nitrogen. Future research directions proposed further advance understanding application image

Language: Английский

Citations

48
Electroreduction of alkaline/natural seawater: Self-cleaning Pt/carbon cathode and on-site co-synthesis of H2 and Mg hydroxide nanoflakes DOI
Jie Liang, Zhengwei Cai, Xun He

et al.

Chem, Journal Year: 2024, Volume and Issue: 10(10), P. 3067 - 3087

Published: June 18, 2024

Language: Английский

Citations

45
Electrochemical Oxidation of Small Molecules for Energy‐Saving Hydrogen Production DOI
Hainan Sun, Xiaomin Xu, Liangshuang Fei

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)

Published: May 27, 2024

Abstract Electrochemical water splitting is a promising technique for the production of high‐purity hydrogen. Substituting slow anodic oxygen evolution reaction with an oxidation that thermodynamically more favorable enables energy‐efficient Moreover, this approach facilitates degradation environmental pollutants and synthesis value‐added chemicals through rational selection small molecules as substrates. Strategies small‐molecule electrocatalyst design are critical to electrocatalytic performance, focus on achieving high current density, selectivity, Faradaic efficiency, operational durability. This perspective discusses key factors required further advancement, including technoeconomic analysis, new reactor system design, meeting requirements industrial applications, bridging gap between fundamental research practical product detection separation. aims advance development hybrid electrolysis applications.

Language: Английский

Citations

41
Unlocking Efficient Hydrogen Production: Nucleophilic Oxidation Reactions Coupled with Water Splitting DOI Creative Commons
Peng Wang, Jie Zheng,

Xu Xue

et al.

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

Published: June 10, 2024

Abstract Electrocatalytic water splitting driven by sustainable energy is a clean and promising water‐chemical fuel conversion technology for the production of high‐purity green hydrogen. However, sluggish kinetics anodic oxygen evolution reaction (OER) pose challenges large‐scale hydrogen production, limiting its efficiency safety. Recently, OER has been replaced nucleophilic oxidation (NOR) with biomass as substrate coupled (HER), which attracted great interest. Anode NOR offers faster kinetics, generates high‐value products, reduces consumption. By coupling reaction, can be enhanced while yielding products or degrading pollutants. Therefore, NOR‐coupled HER another new electrolytic strategy after significance realizing development global decarbonization. This review explores potential reactions an alternative to delves into mechanisms, guiding future research in production. It assesses different methods, analyzing pathways catalyst effects. Furthermore, it evaluates role electrolyzers industrialized discusses prospects challenges. comprehensive aims advance efficient economical

Language: Английский

Citations

40
Progress in Anode Stability Improvement for Seawater Electrolysis to Produce Hydrogen DOI
Sixie Zhang, Wenwen Xu,

Haocheng Chen

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: Feb. 1, 2024

Abstract Seawater electrolysis for hydrogen production is a sustainable and economical approach that can mitigate the energy crisis global warming issues. Although various catalysts/electrodes with excellent activities have been developed high‐efficiency seawater electrolysis, their unsatisfactory durability, especially anodes, severely impedes industrial applications. In this review, attention paid to factors affect stability of anodes corresponding strategies designing catalytic materials prolong anode's lifetime. addition, two important aspects—electrolyte optimization electrolyzer design—with respect anode improvement are summarized. Furthermore, several methods rapid assessment proposed fast screening both highly active stable catalysts/electrodes. Finally, perspectives on future investigations aimed at improving systems outlined.

Language: Английский

Citations

33
Hetero MOF‐On‐MOF of Ni‐BDC/NH2‐MIL‐88B(Fe) Enables Efficient Electrochemical Seawater Oxidation DOI Creative Commons

Yanji Bao,

Haifeng Ru,

Yifeng Wang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(22)

Published: Feb. 4, 2024

Abstract Seawater electrolysis is a sustainable technology for producing hydrogen that would neither cause global freshwater shortages nor create carbon emissions. However, this severely hampered by the insufficient stability and competition from chlorine evolution reaction (ClER) in actual application. Herein, metal–organic framework (MOF)‐on‐MOF heterojunction (Ni‐BDC/NH 2 ‐MIL‐88B(Fe)) denoted as (Ni‐BDC/NM88B(Fe)) synthesized an effective oxygen (OER) electrocatalyst high‐performance seawater electrolysis, which exhibits long of 200 h low overpotentials 232 299 mV at 100 mA cm −2 alkaline solution, respectively. The exceptional performance attributed to rapid self‐reconstruction Ni‐BDC/NM88B(Fe) produce NiFeOOH protective layer, thereby avoiding ClER‐induced dissolution. Moreover, interface interaction between Ni‐BDC NM88B(Fe) could form Ni─O─Fe bonds promote electron transfer lower energy barrier rate‐determining step, accelerating OER. These electrochemical properties make it intriguing candidate efficient practical electrolysis.

Language: Английский

Citations

33
Green hydrogen production by water electrolysis: Current status and challenges DOI Creative Commons
Bahman Amini Horri, Hasan Özcan

Current Opinion in Green and Sustainable Chemistry, Journal Year: 2024, Volume and Issue: 47, P. 100932 - 100932

Published: May 3, 2024

The scientific and industrial communities worldwide have recently achieved impressive technical advances in developing innovative electrocatalysts electrolysers for water seawater splitting. viability of electrolysis commercial applications, however, remains elusive, the key barriers are durability, cost, performance, materials, manufacturing, system simplicity, especially with regard to running on practical sources like seawater. This paper, therefore, primarily aims provide a concise overview most recent disruptive water-splitting technologies materials that could reshape future green hydrogen production. Starting from fundamentals, durable efficient modern types electrolysers, such as decoupled unconventional hybrid been represented precisely annotated this report. Outlining splitting, paper can help quick guide identifying gap knowledge while pointing out solutions cost-effective production meet zero-carbon targets short near term.

Language: Английский

Citations

32