Facing the “Cutting Edge:” Edge Site Engineering on 2D Materials for Electrocatalysis and Photocatalysis

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 31, 2025

The utilization of 2D materials as catalysts has garnered significant attention in recent years, primarily due to their exceptional features including high surface area, abundant exposed active sites, and tunable physicochemical properties. unique geometry imparts them with versatile sites for catalysis, basal plane, interlayer, defect, edge sites. Among these, hold particular significance they not only enable the activation inert but also serve platforms engineering achieve enhanced catalytic performance. Here it is comprehensively aimed summarize state-of-the-art advancements on electrocatalysis photocatalysis, applications ranging from water splitting, oxygen reduction, nitrogen reduction CO2 reduction. Additionally, various approaches harnessing modifying are summarized discussed. guidelines rational heterogeneous catalysis provided.

Язык: Английский

---

Strong d‐p Orbital Hybridization of Os‐P via Ultrafast Microwave Plasma Assistance for Anion Exchange Membrane Electrolysis

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 2, 2024

Abstract Orbital hybridization is a promising approach to modulating the electronic structure of designed electrocatalysts boost reaction kinetics. In contrast d‐d hybridization, p‐d orbital between p‐block elements and d‐block metals can provide new opportunities modulate properties thus promote catalytic performance. Herein, phosphorus‐doped osmium (P‐Os) catalyst through ultrafast (20 s) microwave plasma engineering. Theoretical calculations verify d‐p P Os, leading modulation d‐band center Os active site. Specifically, neighboring exhibit highest activity, facilitating crucial processes such as H 2 O/H* adsorption dissociation. The overpotential P‐Os in alkaline seawater only 152 mV at 1 A cm −2 , which superior reported electrocatalysts. Moreover, synthesized catalysts are integrated into an anion exchange membrane (AEM) electrolyzer, demonstrating remarkable AEM electrolyzer requires 1.86/2.02 V achieve 500/1000 mA current densities. Then, achieved have great potential for practical electrocatalytic water‐splitting applications.

Язык: Английский

---

Defect-Induced Bimetallic Cubic-Spinel NiO/NiCo2O4 heterostructures via Na-Incorporation towards efficient electrochemical water splitting performances

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162352 - 162352

Опубликована: Янв. 1, 2025

Язык: Английский

---

An Ultra-Thin and Advanced Composite Membrane for High-Performance Alkaline Water Electrolysis

Опубликована: Янв. 1, 2025

Язык: Английский

---

Ruthenium-Based High-Entropy Alloys Expediting Hydrogen Evolution through Catalytic Hydrolysis of Ammonia Borane

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(21), С. 9625 - 9633

Опубликована: Окт. 23, 2024

Currently, ammonia borane (AB, NH3BH3) hydrolysis is considered an available tactic for hydrogen evolution under ambient conditions, which includes many complex reaction steps, such as the activation and adsorption of AB water molecules on catalyst. Therefore, exploiting high-performance catalysts with multiple active sites to match multistep catalytic processes in a critical urgent task but tough challenge. Herein, we propose synthesis scheme high-entropy alloy (HEA) catalyst liberation from hydrolysis. The FeCoNiMnRu HEA face-centered cubic (fcc) phase was synthesized by polymer fiber nanoreactor method using low-cost transition metals Co, Fe, Mn, Ni basic elements combined precious metal Ru, facilitates electron transfer enhances synergistic interaction between these elements, hence enhancing activity toward release hydrogen. For instance, as-synthesized Fe23Co27Ni27Mn12Ru11 shows superior catalyzing apparent energy (Ea) 42.3 kJ·mol–1 turnover frequency (TOF) 55.3 molH2·molRu–1·min–1 at 298 K. This work affords facile approach high-efficiency produce

Язык: Английский

---

Replace Platinum for Hydrogen Evolution Reaction in the Cathode of Proton Exchange Membrane Water Electrolyzers

SusMat, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

ABSTRACT The growing global energy demand and environmental concerns like greenhouse gas emissions call for clean solutions. Hydrogen energy, with high caloric value low impact, is a promising alternative, especially when produced via proton exchange membrane water electrolysis (PEMWE). This process relies on the hydrogen evolution reaction (HER) oxygen (OER), both requiring efficient electrocatalysts. Platinum (Pt), most effective HER catalyst, limited by cost scarcity, prompting research into Pt alternatives ruthenium‐based, transition metal derivatives, metal‐free catalysts that balance cost, efficiency, stability. review explores mechanisms, Pt‐free catalyst innovations, impact of structural interfacial electrode optimization performance in acidic media. It also examines electrochemical evaluation techniques, material characterization, role machine learning design. By providing framework development, this supports advancements sustainable technologies.

Язык: Английский

---

Advances in Spinel-Type Electrocatalysts: Leveraging Ligand Field Theory to Elucidate Structure-Property Relationships

Journal of Materiomics, Год журнала: 2025, Номер unknown, С. 101031 - 101031

Опубликована: Фев. 1, 2025

Язык: Английский

---

Modulation of electronic structure of metal-free graphdiyne via precise nitrogen modification for oxygen evolution reaction

ChemPhysMater, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

---

Anode Alchemy on Multiscale: Engineering from Intrinsic Activity to Impedance Optimization for Efficient Water Electrolysis

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

---

Enhanced hydrogen evolution ability of Ru with regulation of interface electronic structure by WC/W2C heterostructure via ultrafast flash joule heating synthesis

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163015 - 163015

Опубликована: Март 1, 2025

Язык: Английский

---