Assembly and Valence Modulation of Ordered Bimetallic MOFs for Highly Efficient Electrocatalytic Water Oxidation DOI Creative Commons

Yaling Wu,

Zhaopeng Sun, Yingying Chen

и другие.

Molecules, Год журнала: 2024, Номер 29(24), С. 5845 - 5845

Опубликована: Дек. 11, 2024

Metal synergy can enhance the catalytic performance, and a prefabricated solid precursor guide ordered embedding, of secondary metal source ions for rapid synthesis bimetallic organic frameworks (MM'-MOFs) with stoichiometric ratio 1:1. In this paper, Co-MOF-1D containing well-defined binding sites was synthesized by mechanical ball milling, which used as template induced introduction Fe to successfully assemble Co1Fe1-MOF-74@2 (where @2 denotes template-directed MOF-74). Its electrocatalytic performance is superior that conventional one-step-synthesized Co1Fe1-MOF-74@1 @1 one-step MOF-74), two sources, Co Fe, close Meanwhile, iron valence states (FeII FeIII) in were further regulated obtain materials Co1Fe1(II)-MOF-74@2 Co1Fe1(III)-MOF-74@2. The electrochemical test results confirm state has better than Co1Fe1(III)-MOF-74@2 oxygen evolution reaction (OER) process. This phenomenon related gradual increase Co1Fe1(II)-MOF-74@2, promotes continuous improvement MOF before reaching optimal steady makes OER reach optimum when FeII/FeIII mixed-valence reaches certain proportion. provides new idea directed optimization highly efficient catalysts.

Язык: Английский

Multi‐Dimensional Color Tunable Long Persistent Luminescence in Metal Halide‐Based CPs Through Precise Manipulation of Electronic and Steric Effects DOI Open Access
Dan Wang, Jingchuan Zhu,

Xin‐Qi Chen

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 5, 2025

Regulating strategies for long persistent luminescence (LPL) are always in high demand. Herein, a series of coordination polymers (CPs) (SUST-Z1-Z4) fabricated using 1,10-phenanthroline derivatives involving different substituents (─H, ─CH

Язык: Английский

Процитировано

1
One-Dimensional Red Light–Emissive Organic Manganese(II) Halides as X-Ray Scintillators DOI
Yu Fang, Huiru Zhang,

Wenwen Gao

и другие.

Inorganic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Сен. 19, 2024

Although metal halide-based X-ray scintillators have obtained significant development with adjustable radioluminescent spectral range, the red light-emitting scintillator has been sparsely reported and remains a great challenge until now. To remedy this research blank, we investigated scintillating property of light-emissive one-dimensional (1D) organic manganese halide (MBIZ)(MnCl

Язык: Английский

Процитировано

5
Precise Single‐Atom Modification of Hybrid Lead Chlorides for Electron Donor‐Acceptor Effect and Enhanced Photocatalytic Aerobic Oxidation DOI

Yukong Li,

Ziyi Wang, Yilin Jiang

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Окт. 25, 2024

Abstract Hybrid lead halides show significant potential in photocatalysis due to their excellent photophysical properties, but the atomically precise modification of organic component achieve synergistic interactions with halide units remains a great challenge. Herein, for first time, we have employed crystal engineering strategy construct class single‐atom‐substituted hybrid electron donor‐acceptor (D‐A) effect. The frameworks consist 1D linear [PbCl] + chains as inorganic building and benzoxadiazole/benzothiadiazole/ benzoselenadiazole‐funtionalized dicarboxylates linkers. covalent bonding between ligands electron−withdrawing groups electron‐rich not only facilitate charge separation, also enhance structural robustness that is critical photocatalysis. D‐A structured serve highly efficient heterogeneous photooxidation catalysts, including aerobic oxidation C(sp 3 )−H bonds, oxidative coupling primary amines, phenylboronic acids selective sulfides are demonstrated 30 examples. Importantly, these reactions able be driven by natural sunlight ambient air afford quantitative yields. Moreover, our photocatalysts successful fix into photocatalytic flow system, which enables flow‐type synthesis high value‐added products on gram scale.

Язык: Английский

Процитировано

3
Li, Na, and Cs-based metal-organic frameworks for room temperature phosphorescence applications DOI
Jiaqi Ma, Rui Feng,

Yanyuan Jia

и другие.

Science China Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Язык: Английский

Процитировано

0
Pressure‐Promoted Self‐Trapped Exciton Emission and White‐Light Harvesting in Lead Halide Metal–Organic Frameworks at Ambient Conditions DOI Open Access

Yunfeng Yang,

Xiaohui Zhao, Junyu Liang

и другие.

Laser & Photonics Review, Год журнала: 2025, Номер unknown

Опубликована: Фев. 8, 2025

Abstract Lead halide metal−organic frameworks (MOFs) possess unique advantages in preparing single‐component white‐light‐emitting (WLE) materials due to their broadband emission based on self‐trapping excitons (STEs). However, order obtain high‐quality white light emission, challenges remain adjusting and optimizing the color temperature coordinates of STE emission. Herein, we have achieved tunable with Commission International de l'Eclairage (0.32, 0.38) 5777 K at ambient conditions TMOF‐8(Cl) through pressure treatment. The irreversible lattice distortion after treatment reduces distance between [PbCl] + unit TDC 2− unit. enhanced hydrogen bonding interactions electronic coupling Pb‐ s orbitals ligand energy levels turn charge transfer (CT) channel from Adjusting degree can achieve regulation relative intensity CT thereby obtaining This study provides a new perspective modulation MOFs platform for development WLE materials.

Язык: Английский

Процитировано

0
Engineering Solvent‐Coordinated Heterometallic–Organic Frameworks for Wide‐Range Tuning of Ultralong Room Temperature Phosphorescence toward Time‐Resolved Anticounterfeiting DOI Open Access

Juanjuan Xue,

Zhenhong Qi, Dongpeng Yan

и другие.

Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Metal-organic frameworks (MOFs) have been proven promising ultralong room temperature phosphorescence (RTP) materials for anti-counterfeit due to their unique optical properties. However, it remains a major challenge achieve the desired phosphorescent properties limited regulatory methods and indistinct mechanism. Herein, coordination solvent second metal ion co-strategy is firstly proposed prepare seven robust heterometallic-organic (HMOFs) with two configurations: ZnMg/Ca-sol [sol = H2O, dimethylformamide (DMF), dimethylacetamide (DMA), formyldiethylamine (DEF)] ZnSr/Ba-H2O, exhibiting different RTP. The tunable lifetimes within 14.5-195.4 ms are achieved gradually by altering type of alkaline earth metals, solvent, hydrogen-bonding in HMOFs. Significantly, theoretical calculations reveal that promotion spin-orbit coupling heavy metals rigid constraint on skeleton result excellent balance between high quantum yield (ФP) long lifetime, especially ZnSr-H2O (6.8%, 195.4 ms). Depending wide-range tuning RTP great stability, HMOFs successfully applied spatial-time resolved anti-counterfeiting multi-level information encryption. This work may provide new approach designing target while resolving contradiction ФP lifetime.

Язык: Английский

Процитировано

0
Engineering Solvent‐Coordinated Heterometallic–Organic Frameworks for Wide‐Range Tuning of Ultralong Room Temperature Phosphorescence toward Time‐Resolved Anticounterfeiting DOI Open Access

Juanjuan Xue,

Zhenhong Qi, Dongpeng Yan

и другие.

Angewandte Chemie, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Abstract Metal–organic frameworks (MOFs) have been proven promising ultralong room temperature phosphorescence (RTP) materials for anticounterfeit due to their unique optical properties. However, it remains a major challenge achieve the desired phosphorescent properties limited regulatory methods and indistinct mechanism. Herein, coordination solvent second metal ion costrategy is firstly proposed prepare seven robust heterometallic–organic (HMOFs) with two configurations, ZnMg/Ca‐sol [sol = H 2 O, dimethylformamide (DMF), dimethylacetamide (DMA), formyldiethylamine (DEF)] ZnSr/Ba‐H O , exhibiting different RTP. The tunable lifetimes within 14.5–195.4 ms are achieved gradually by altering type of alkaline earth metals, solvent, hydrogen‐bonding in HMOFs. Significantly, theoretical calculations reveal that promotion spin–orbit coupling heavy metals rigid constraint on skeleton result excellent balance between high quantum yield ( Ф P ) long lifetime, especially ZnSr‐H (6.8%, 195.4 ms). Depending wide‐range tuning RTP great stability, HMOFs successfully applied spatial‐time resolved anticounterfeiting multilevel information encryption. This work may provide new approach designing target while resolving contradiction lifetime.

Язык: Английский

Процитировано

0
Flexible Piezoelectric Nanogenerator with a Ferroelectric Metal–Ligand Cage for Self-Powered Sensor Applications DOI Creative Commons

Neetu Prajesh,

Vikash K. Kushwaha,

Dipti R. Naphade

и другие.

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 22, 2025

Ferroelectric materials have emerged as promising candidates for piezoelectric nanogenerators, attributed to their superior energy conversion efficiency derived from inherent polarization characteristics. Polar metal–ligand assemblies represent advantageous alternatives conventional inorganic ceramics and organic polymers, offering tunable electronic properties, environmental benignity, enhanced capabilities. We demonstrate an octahedral [[Co6(H2O)12(TPTA)8](NO3)12·50H2O] cage assembly exhibiting pronounced ferroelectric behavior, characterized by a P–E hysteresis loop with remnant of 6.84 μC cm–2. The properties 1 were unambiguously confirmed through the visualization electrical domains in single crystals crystalline thin films via piezoresponse force microscopy (PFM). Single-point, bias-dependent PFM spectroscopy measurements revealed characteristic amplitude-butterfly phase-hysteresis loops, substantiating nature material. Piezoelectric harvesting investigations conducted on polydimethylsiloxane (PDMS) composite maximum peak output voltage 12.20 V power density 14.85 μW cm–2 optimized 20 wt % 1-PDMS device. practical utility was validated implementation smart pressure sensor, wherein mat device, constructed five parallel-connected independent devices, successfully functioned sensor capable illuminating commercial LED under gentle mechanical stimulation. These findings establish potential this system integration into self-powered technologies.

Язык: Английский

Процитировано

0
Precise Single‐Atom Modification of Hybrid Lead Chlorides for Electron Donor‐Acceptor Effect and Enhanced Photocatalytic Aerobic Oxidation DOI

Yukong Li,

Ziyi Wang,

Yilin Jiang

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Окт. 25, 2024

Abstract Hybrid lead halides show significant potential in photocatalysis due to their excellent photophysical properties, but the atomically precise modification of organic component achieve synergistic interactions with halide units remains a great challenge. Herein, for first time, we have employed crystal engineering strategy construct class single‐atom‐substituted hybrid electron donor‐acceptor (D‐A) effect. The frameworks consist 1D linear [PbCl] + chains as inorganic building and benzoxadiazole/benzothiadiazole/ benzoselenadiazole‐funtionalized dicarboxylates linkers. covalent bonding between ligands electron−withdrawing groups electron‐rich not only facilitate charge separation, also enhance structural robustness that is critical photocatalysis. D‐A structured serve highly efficient heterogeneous photooxidation catalysts, including aerobic oxidation C(sp 3 )−H bonds, oxidative coupling primary amines, phenylboronic acids selective sulfides are demonstrated 30 examples. Importantly, these reactions able be driven by natural sunlight ambient air afford quantitative yields. Moreover, our photocatalysts successful fix into photocatalytic flow system, which enables flow‐type synthesis high value‐added products on gram scale.

Язык: Английский

Процитировано

0
Assembly and Valence Modulation of Ordered Bimetallic MOFs for Highly Efficient Electrocatalytic Water Oxidation DOI Creative Commons

Yaling Wu,

Zhaopeng Sun, Yingying Chen

и другие.

Molecules, Год журнала: 2024, Номер 29(24), С. 5845 - 5845

Опубликована: Дек. 11, 2024

Metal synergy can enhance the catalytic performance, and a prefabricated solid precursor guide ordered embedding, of secondary metal source ions for rapid synthesis bimetallic organic frameworks (MM'-MOFs) with stoichiometric ratio 1:1. In this paper, Co-MOF-1D containing well-defined binding sites was synthesized by mechanical ball milling, which used as template induced introduction Fe to successfully assemble Co1Fe1-MOF-74@2 (where @2 denotes template-directed MOF-74). Its electrocatalytic performance is superior that conventional one-step-synthesized Co1Fe1-MOF-74@1 @1 one-step MOF-74), two sources, Co Fe, close Meanwhile, iron valence states (FeII FeIII) in were further regulated obtain materials Co1Fe1(II)-MOF-74@2 Co1Fe1(III)-MOF-74@2. The electrochemical test results confirm state has better than Co1Fe1(III)-MOF-74@2 oxygen evolution reaction (OER) process. This phenomenon related gradual increase Co1Fe1(II)-MOF-74@2, promotes continuous improvement MOF before reaching optimal steady makes OER reach optimum when FeII/FeIII mixed-valence reaches certain proportion. provides new idea directed optimization highly efficient catalysts.

Язык: Английский

Процитировано

0