Iron-based metal–organic frameworks and their derived materials for photocatalytic and photoelectrocatalytic reactions

Coordination Chemistry Reviews, Год журнала: 2023, Номер 499, С. 215538 - 215538

Опубликована: Ноя. 1, 2023

Язык: Английский

---

Design and Advanced Manufacturing of NU‐1000 Metal–Organic Frameworks with Future Perspectives for Environmental and Renewable Energy Applications

Small, Год журнала: 2023, Номер 20(15)

Опубликована: Ноя. 23, 2023

Abstract Metal–organic frameworks (MOFs) represent a relatively new family of materials that attract lots attention thanks to their unique features such as hierarchical porosity, active metal centers, versatility linkers/metal nodes, and large surface area. Among the extended list MOFs, Zr‐based‐MOFs demonstrate comparably superior chemical thermal stabilities, making them ideal candidates for energy environmental applications. As Zr‐MOF, NU‐1000 is first synthesized at Northwestern University. A comprehensive review various approaches synthesis MOFs obtaining properties (e.g., diverse morphologies, area, particular pore size distribution) applications in catalysis (electro‐, photo‐catalysis), CO 2 reduction, batteries, hydrogen storage, gas storage/separation, other fields are presented. The further outlines current challenges development derivatives practical applications, revealing areas future investigation.

Язык: Английский

---

Structure–property–performance relationship of vanadium- and manganese-based metal–organic frameworks and their derivatives for energy storage and conversion applications

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(19), С. 11149 - 11175

Опубликована: Янв. 1, 2024

The current review discusses on vanadium- and manganese-based metal–organic frameworks their derivatives for energy storage conversion applications along with the potential future advancements in these fields.

Язык: Английский

---

Functional Group Modulation in Carbon Quantum Dots for Accelerating Photocatalytic CO₂ Reduction

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(28), С. 33868 - 33877

Опубликована: Июль 7, 2023

This study investigates the mechanism behind enhanced photocatalytic performance of carbon quantum dot (CQD)-induced photocatalysts. Red luminescent CQDs (R-CQDs) were synthesized using a microwave ultrafast synthesis strategy, exhibiting similar optical and structural properties but varying in surface functional group sites. Model photocatalysts by combining R-CQDs with graphitic nitride (CN) facile coupling technique, effects different functionalized on CO2 reduction investigated. technique narrowed band gap R1-CQDs/CN, made conduction potentials more negative, photogenerated electrons holes less likely to recombine. These improvements greatly deoxygenation ability photoinduced carriers, increased light absorption solar energy, raised carrier concentration, resulting excellent stability remarkable CO production. R1-CQDs/CN demonstrated highest activity, production up 77 μmol g–1 within 4 h, which is approximately 5.26 times higher than that pure CN. Our results suggest superior arises from its strong internal electric field high Lewis acidity alkalinity, attributed abundant pyrrolic-N oxygen-containing groups, respectively. findings offer promising strategy for producing efficient sustainable CQD-based address global energy environmental problems.

Язык: Английский

---

MOFs coupled transition metals, graphene, and MXenes: Emerging electrocatalysts for hydrogen evolution reaction

Chemical Engineering Journal, Год журнала: 2024, Номер 482, С. 148776 - 148776

Опубликована: Янв. 18, 2024

Язык: Английский

---

Compositional engineering of HKUST‐1/sulfidized NiMn‐LDH on functionalized MWCNTs as remarkable bifunctional electrocatalysts for water splitting

Carbon Energy, Год журнала: 2023, Номер 5(12)

Опубликована: Дек. 1, 2023

Abstract Water‐splitting reactions such as the hydrogen evolution reaction (HER) and oxygen (OER) typically require expensive noble metal‐based electrocatalysts. This has motivated researchers to develop novel, cost‐effective electrocatalytic systems. In this study, a new multicomponent nanocomposite was assembled by combining functionalized multiwalled carbon nanotubes, Cu‐based metal–organic framework (MOF) (HKUST‐1 or HK), sulfidized NiMn‐layered double hydroxide (NiMn‐S). The resulting nanocomposite, abbreviated MW/HK/NiMn‐S, features unique architecture, high porosity, numerous electroactive Cu/Ni/Mn sites, fast charge transfer, excellent structural stability, conductivity. At current density of 10 mA cm −2 , dual‐function electrocatalyst shows remarkable performance, with ultralow overpotential values 163 mV 73 (HER), well low Tafel slopes (57 75 dec −1 respectively). Additionally, its turnover frequency (4.43 s for OER; 3.96 HER) are significantly superior those standard Pt/C IrO 2 synergistic effect nanocomposite's different components is responsible enhanced performance. A functional theory study revealed that multi‐interface heterostructure contribute increased electrical conductivity decreased energy barrier, in HER/OER activity. presents novel vision designing advanced electrocatalysts performance water splitting. Various composites have been utilized water‐splitting applications. investigates use MW/HK/NiMn‐S splitting first time indicate between carbon‐based materials along layered compounds porous MOF. each component composite can be an interesting topic field

Язык: Английский

---

Fluorinated Metal–Organic Frameworks with Dual-Functionalized Linkers to Enhance Photocatalytic H₂ Evolution and High Water Adsorption

Inorganic Chemistry, Год журнала: 2023, Номер 62(45), С. 18680 - 18688

Опубликована: Окт. 31, 2023

Photocatalytic H2 evolution has recently attracted much attention due to the reduction of nonrenewable energy sources and increasing demand for renewable sustainable energies. Meanwhile, metal-organic frameworks (MOFs) are emerging potential photocatalysts their structural adaptability, porous configuration, several active sites, a wide range performance. Nevertheless, there still limitations in photocatalytic reaction MOFs with higher charge recombination rates. Herein, copper-organic framework dual-functionalized linkers {[Cu2(L)(H2O)2]·(5DMF)(4H2O)}n (fluorinated MOF(Cu)-NH2; H4L = 3,5-bis(2,4-dicarboxylic acid)-4-(trifluoromethyl)aniline) rare 2-nodal 4,12-connected shp topology been synthesized by ligand-functionalization strategy evaluated production overcome this issue. According results, fluorinated MOF(Cu)-NH2 showed hydrogen rate 63.64 mmol·g-1·h-1 exposed light irradiation, indicating values 12 times that pure ligand when cocatalyst Pt photosensitizer Rhodamine B were present. In addition, MOF maximum water absorption 205 cm3·g-1. When introduced structure MOF, its visible-light increases considerably, which can be associated nearly narrower band gaps (2.18 eV). More importantly, contributes electron collection transport, acting as bridge helps separate transfer photogenerated charges while shortening migration path because functional group configuration. The current paper seeks shed on design advanced no calcination production.

Язык: Английский

---

Vanadium- and manganese-based metal-organic frameworks for potential environmental and catalysis applications

Coordination Chemistry Reviews, Год журнала: 2024, Номер 522, С. 216231 - 216231

Опубликована: Сен. 25, 2024

Язык: Английский

---

Recent advanced strategies for bimetallenes toward electrocatalytic energy conversion reactions

Chemical Communications, Год журнала: 2024, Номер 60(23), С. 3129 - 3137

Опубликована: Янв. 1, 2024

Designing low-dimensional nanomaterials is vital to address the energy and environmental crisis by means of electrocatalytic conversion reactions. Bimetallenes, as an emerging class 2D materials, present promise for By leveraging atomically thin layers, bimetallenes unsaturated surface coordination, high specific area conductivity, which are all indispensable features heterogeneous electrochemical However, intrinsic activity stability needs be improved further bimetallene electrocatalysts, due higher demands practical applications. Recently, many strategies have been developed optimize chemical or electronic structure accommodate transfer reactants, adsorption desorption intermediates, dissociation products. Considering that most such work focuses on adjusting structure, this review offers in-depth insight into recent representative optimizing mainly including alloying, strain effects, ligand defects heteroatom doping. Moreover, summarizing performance optimized using various strategies, we provide a understand structure-property relationships. In addition, future prospects challenges discussed development electrocatalysts.

Язык: Английский

---

Water-Stable Pillared Three-Dimensional Zn–V Bimetal–Organic Framework for Promoted Electrocatalytic Urea Oxidation

Inorganic Chemistry, Год журнала: 2024, Номер 63(12), С. 5642 - 5651

Опубликована: Март 12, 2024

Urea oxidation reaction (UOR) is one of the potential routes in which urea-rich wastewater used as a source energy for hydrogen production. Metal–organic frameworks (MOFs) have promising applications electrocatalytic processes, although there are still challenges identifying MOFs' molecular regulation and obtaining practical catalytic systems. The current study sought to synthesize [Zn6(IDC)4(OH)2(Hprz)2]n (Zn-MOF) with three symmetrically independent Zn(II) cations connected via linear N-donor piperazine (Hprz), rigid planar imidazole-4,5-dicarboxylate (IDC3–), −OH ligands, revealing 3,4T1 topology. optimized noble-metal-free Zn0.33V0.66-MOF/NF electrocatalysts show higher robustness performance compared those parent Zn monometallic MOF/NF electrode other bimetallic MOFs different Zn–V molar ratios. low 1.42 V (vs RHE) at 50 mA cm–2 1.0 M KOH 0.33 urea required by developed Zn0.33V0.66-MOF makes its application UOR more feasible. availability exposed active sites, ion diffusion path, conductivity result from distinctive configuration synthesized electrocatalyst, highly stable capable synergistic effects, consequently enhancing desired reaction. research contributes introducing practical, cost-effective, sustainable solution decompose produce hydrogen.

Язык: Английский

---