Small Methods, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 10, 2024
The glycerol oxidation reaction (GOR) for producing high-value-added organic compounds is of great research interest due to its potential in alleviating the energy crisis. Herein, a facile NH
Язык: Английский
Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(14), С. 4080 - 4106
Опубликована: Янв. 1, 2024
This summary describes the effects of wettability, local pH, interfacial water structure, and electrolyte composition on interface reactant compositions, key intermediate adsorption, reaction kinetics.
Язык: Английский
Процитировано
16
Advanced Functional Materials, Год журнала: 2023, Номер 34(14)
Опубликована: Дек. 24, 2023
Abstract Electrocatalysts play a crucial role in hydrogen production via water splitting, yet their effectiveness is hampered by the bubble effect, particularly under high‐current‐density conditions. Herein, nickel foam with mountain‐shaped nanostripes (NFMN) developed as universal substrate for electrocatalysts to remove gas bubbles efficiently, ensuring high‐performance splitting. The NFMN fabricated through facet engineering of (NF) thiocyanate‐guided acid etching. Specifically, when immersed into an acidic thiocyanate solution, (220) plane NF preferentially adsorbed SCN − , protecting it, while (111) and (200) facets remain exposed are selectively etched acid. As etching proceeds parallelly direction, obtained. confer benefits superaerophobicity local circulation, allowing efficiently release bubbles. proof‐of‐concept application, employed novel support FeOOH anode Ni 2 P cathode prototype electrolyzer, which exhibits low cell voltage 1.847 V at large current density 500 mA cm −2 high stability. This work opens up new opportunities construct efficient substrates splitting beyond.
Язык: Английский
Процитировано
30
Advanced Materials, Год журнала: 2024, Номер 36(21)
Опубликована: Фев. 22, 2024
Abstract The manipulation of gas in multiphase interactions plays a crucial role various electrochemical processes. Inspired by nature, researchers have explored bioinspired strategies for regulating these interactions, leading to remarkable advancements design, mechanism, and applications. This paper provides comprehensive overview electrochemistry. It traces the evolution gas‐involving reactions, highlighting key milestones breakthroughs achieved thus far. then delves into design principles underlying mechanisms superaerophobic (super)aerophilic electrodes, as well asymmetric electrodes. Furthermore, applications hydrogen reaction (HER), carbon dioxide reduction (CO 2 RR), other reactions are summarized. promising prospects future directions advancing through also discussed.
Язык: Английский
Процитировано
14
Catalysts, Год журнала: 2024, Номер 14(4), С. 254 - 254
Опубликована: Апрель 11, 2024
Water splitting is widely acknowledged as an efficient method for hydrogen production. In recent years, significant research efforts have been directed towards developing cost-effective electrocatalysts. However, the management of bubbles formed on electrode surface during electrolysis has largely overlooked. These can impede active sites, resulting in decreased catalytic performance and stability, especially at high current densities. Consequently, this impediment affects energy conversion efficiency water splitting. To address these challenges, review offers a comprehensive overview advanced strategies aimed improving mitigating obstructive effects primarily involve utilization experimental apparatus to observe bubble-growth behavior, encompassing nucleation, growth, detachment stages. Moreover, examines factors influencing bubble formation, considering both mechanical behaviors internal factors. Additionally, design water-splitting catalysts discussed, focusing modifying electrode-surface characteristics. Finally, concludes by summarizing potential large-scale industrial production identifying future directions achieving
Язык: Английский
Процитировано
12
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(37), С. 49349 - 49361
Опубликована: Сен. 4, 2024
With the intensification of global environmental pollution and resource scarcity, hydrogen has garnered significant attention as an ideal alternative to fossil fuels due its high energy density nonpolluting nature. Consequently, urgent development electrocatalytic water-splitting electrodes for production is imperative. In this study, a superwetting selenide catalytic electrode with peony-flower-shaped micronano array (MoS
Язык: Английский
Процитировано
10
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 2, 2024
Abstract Developing high‐efficiency alkaline water splitting technology holds great promise in potentially revolutionizing the traditional petrochemical industry to a more sustainable hydrogen economy. Importantly, oxygen evolution reaction (OER) accompanied at anode is considered as critical bottleneck terms of both complicated mechanism and sluggish kinetics, requiring rational design OER electrocatalysts elucidate structure‐performance relationship reduce applied overpotential. As benchmarked non‐precious metal candidate, NiFe‐based have gained enormous attention due low‐cost, earth‐abundance, remarkable intrinsic activity, which are expected be implemented industrial splitting. In this contribution, comprehensive overview provided, starting with fundamental mechanisms, evaluation metrics, synthetic protocols. Subsequently, basic principles corresponding regulatory strategies summarized following sequence substrate‐catalyst‐electrolyte efficient robust toward industrial‐scale deployment. Perspectives on remaining challenges instructive opportunities booming field finally discussed.
Язык: Английский
Процитировано
8
eScience, Год журнала: 2024, Номер unknown, С. 100334 - 100334
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
6
Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(48), С. 26318 - 26339
Опубликована: Янв. 1, 2023
This review comprehensively explores the diverse strategies of Li 2 S engineering and examines potential avenues for enhancing structural stability electrochemical performance.
Язык: Английский
Процитировано
14
ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(12), С. 4867 - 4875
Опубликована: Март 9, 2024
MoSxSe2–x emerges as a potent alternative to Pt-based electrodes in the electrochemical hydrogen evolution reaction (HER), although its practical application is hindered by suboptimal synthetic methods. Herein, KSCN molten salt strategy introduced, enabling straightforward synthesis of at modest temperature 320 °C through one-step heating process involving Se powder and Na2MoO4 muffle furnace. It elucidated that MoO42– facilitates decomposition S2–, which subsequently activates powder, culminating formation SexS2– polyanion. This polyanion then interacts with MoO42–, yielding characterized profusion anion vacancies. attributed introduction heteroatoms, causing lattice distortion substantial steric hindrance SexS2–, limiting crystal growth. Theoretical analyses indicate presence atoms vacancies collaboratively modulates electronic structure MoSxSe2–x. results minimized band gap 0.88 eV an almost zero ΔGH* 0.09 optimized MoS1.5Se0.5. Consequently, MoS1.5Se0.5 exhibits remarkable HER performance, low η10 103 mV minimal Tafel slope 33 dec–1, alongside robust stability. research not only unveils electrocatalyst for but also introduces simplified transition metal selenosulfides, broadening their applicability across various domains.
Язык: Английский
Процитировано
4
Small, Год журнала: 2025, Номер unknown
Опубликована: Март 5, 2025
The past decade has seen significant progress in proton exchange membrane water electrolyzers (PEMWE), but the growing demand for cost-effective electrolytic hydrogen pushes higher efficiency at lower costs. As a complex system, performance of PEMWE is governed by combination multiscale factors. This review summarizes latest from quantum to macroscopic scales. At level, electron spin configurations can be optimized enhance catalytic activity. nano and meso scales, advancements atomic structure optimization, crystal phase engineering, heterostructure design improve mass transport. macro scale, innovative techniques gas bubble management internal resistance reduction drive further gains under ampere-level operating conditions. These modifications level cascade through meso- macro-scales, affecting charge transfer, reaction kinetics, evolution management. Unlike conventional approaches that focus solely on one scale-either catalyst (e.g., atomic, or modifications) device porous transport layers design)-combining optimizations unlocks greater improvements. Finally, perspective future opportunities engineering anode toward commercial viability offered.
Язык: Английский
Процитировано
0