Rare Earth Single Atoms Steering Hydrogen Spillover Over Pd/WO3 Toward High‐Efficiency H2 Sensor at Near Room Temperature DOI Creative Commons

Zexin Wei,

Min Song, Huanxin Wang

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 26, 2025

Abstract Metal oxide semiconductor (MOS) supported Pd materials are potential candidates for H 2 sensors, while effective detection at near room temperature remains a great challenge owing to the difficulty of hydrogen migration from low temperature. Herein, guided by theoretical calculations, rare earth single atoms doping nanoparticles on WO 3 nanorods with tunable work function differences (ΔФ) and oxygen vacancies precisely developed improve sensing performances. The resultant Ce‐Pd/WO presents highest response 31.3 toward 50 ppm , showing 6 times improvement over Pd/WO which realizes trace fast . Density functional theory results reveal that energy barrier formation vacancy decrease after introducing atoms, lowest ΔФ exhibits most facile spillover desorption. in situ spectra characterization experiments further demonstrate highly improved Significantly, real‐time monitoring application device leak (0.1 V/V%) Al‐air batteries is also verified. This can shed light development high‐efficiency sensor via precise modulation functions.

Language: Английский

Cost-Effective Synthesis of Carbazole-Based Nanoporous Organic Polymers for SO2 Capture DOI
Jun Yan, Qilin Wang,

Jiangli Zhu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Sulfur dioxide (SO2), a pervasive air pollutant, poses significant environmental and health risks, necessitating advanced materials for its efficient capture. Nanoporous organic polymers (NOPs) have emerged as promising candidates; however, their development is often hindered by high synthesis temperatures, complex precursors, limited SO2 selectivity. Herein, we report room-temperature, cost-effective of carbazole-based nanoporous (CNOPs) using 1,3,5-trioxane paraldehyde, offering advancement over traditional Friedel-Crafts alkylation methods. The resulting CNOPs exhibit surface area up to 842 m2·g-1 feature ultramicroporous structures optimized adsorption. At 298 K 1 bar, the demonstrated adsorption capacities 9.39 mmol·g-1. Ideal adsorbed solution theory (IAST) calculations revealed outstanding selectivities 105 SO2/CO2 6139 SO2/N2 mixtures, supported breakthrough experiments demonstrating superior separation performance. This work not only provides straightforward synthetic route but also offers valuable insights into design porous tailored enhanced capture, addressing critical challenges.

Language: Английский

Citations

1
Industrialization of Covalent Organic Frameworks DOI
Kaiyuan Wang,

Xueling Qiao,

Hongxia Ren

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Covalent organic frameworks (COFs) have attracted broad interest because of their well-defined, customizable, highly stable, and porous structures. COFs shown significant potential for various practical applications, such as gas storage/purification, drug purification, water treatment, catalysis, battery applications. Scaling up is desirable to meet industrial application demands but hindered by the limitations synthesis methods high cost reactants. Recently, emerging green methods, mechanochemical flux synthesis, offered promising solutions these challenges (e.g., ton-scale production has been achieved companies recently). This Perspective provides an overview state art with respect discusses factors influencing large-scale COFs. Directions opportunities improving performance sustainability toward applications are also emphasized.

Language: Английский

Citations

0
Controllable Interfacial Growth of 2D Covalent Organic Framework Films for Organic Electronic Applications DOI Creative Commons

Liuna Luo,

Bing Sun, Dong Wang

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Abstract Two‐dimensional covalent organic frameworks (2D COFs) are crystalline porous materials with predesignable topologies, periodic structures, and tunable functionalities constructed from molecular building blocks through bonds. Their modular design allows for the integration of various functionalities, making 2D COFs highly suitable optoelectronic applications. COF films have emerged to integrate into devices, avoiding low dispersibility poor processability powder materials. Interfacial polymerization is a blooming method fabricate at liquid‐solid, liquid‐liquid, water‐air, solid‐gas interfaces. Obtaining high‐quality key exploring their performance in electronics. This review first discussed synthetic strategies constructing oriented by interfacial polymerization, including general nucleation‐growth process, field‐induced assembly nucleation‐growth, other methods. The applications electronic devices reviewed, photodetectors, transistors, electrochromic resistive memory, neuromorphic devices. Finally, challenges perspectives synthesizing outlined.

Language: Английский

Citations

0
Recent advances in semiconductor gas sensors for thermal runaway early-warning monitoring of lithium-ion batteries DOI

Xingyan Shao,

Dongzhi Zhang, Lina Zhou

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216624 - 216624

Published: March 20, 2025

Language: Английский

Citations

0
Bimetallic Strip‐Inspired Dual‐Layer Covalent Organic Framework Membrane for Smart Organic Vapor Response DOI
Yaohan Chen, Zimo Wang, Jifu Zheng

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Vapor-driven smart materials show significant advantages in areas such as intelligent control, gas detection, and information transmission. However, their typically singular response mechanisms pose challenges for achieving binary behaviors within a single system. Drawing inspiration from bimetallic strips, dual-layer covalent organic framework (DL-COF) membrane is developed with hierarchical pore structure. This exhibits asymmetric expansion or contraction on either side when exposed to morpholine 1,4-dioxane vapors, enabling behaviors. The driving forces underlying these responses are the shifts hydrogen bond equilibrium caused by chain-like bonding swelling effects two layers, which have different degrees of crystallinity. structure further enhances rapid mass transfer, DL-COF achieve an impressive time just 0.6 s. By leveraging its distinct responsiveness can be effectively utilized visual translation encrypted information, reliable decoding gas-encrypted Morse code continuous programmatic vapor inputs.

Language: Английский

Citations

0
Melt‐Processing Enabled Flexible Metal Halide‐Nylon Luminescent Films with Enhanced Optical Transmission for Curved X‐Ray Imaging DOI

Zi‐Lin He,

Wenguang Li,

Jing‐Hua Chen

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract Organic–inorganic hybrid metal halides are emerging as a class of functional materials that combine attractive photophysical properties with great processability. Their modular chemical structures allow for melt processing through crystal‐melt transitions. Herein, the study reports synthesis (Bzmim) 2 MnX 4 (Bzmim = 1‐benzyl‐3‐methylimidazolium, X Cl, Br, I) single crystals low melting temperatures ranging from 130 to 160 °C. Among them, MnBr exhibits superior luminescence performance photoluminescence quantum yield 78.6% and light 34 900 photons MeV −1 , making it act promising scintillator. Interestingly, leveraging fluidity porous structure nylon film, transparent crystalline ‐Nylon composite film is fabricated by melt‐infiltration process. Compared has an increased transmittance ≈20% >60%. It can be attributed uniform crystallization in pores which suppresses severe crosstalk caused large refractive index difference at nylon‐air interface. The melt‐processable spatial resolution 16 line pairs per millimeter practical X‐ray imaging, well applications curved imaging due its flexibility.

Language: Английский

Citations

0
Construction of Metal‐Covalent Organic Frameworks with Trinuclear Copper Cluster for Efficient Triboelectric Nanogenerators DOI

Huayun Ma,

Qiang Zhang, Zhiqiang Zhu

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Metal‐cluster‐based covalent organic frameworks (MCOFs), obtained through connections between metal clusters and molecules, have shown considerable promise in many applications. However, MCOFs rarely been employed as triboelectric materials nanogenerators (TENGs), their corresponding effect on the output has not systematically elucidated. Here, for first time, a set of (Cu 3 ‐S‐MCOF, Cu ‐M‐MCOF, ‐L‐MCOF) having similar skeletons but different pore spaces (2.1, 3.4, 4.2 nm) are synthesized using copper‐cyclic trinuclear units. All utilized fillers methyl cellulose (MC) matrix to prepare series films layers TENGs. Kelvin probe force microscopy (KPFM) showed that surface charge density fabricated can be precisely altered based MCOFs. The mixing ratio MC is optimized boost outputs A very high current voltage up 54.8 µA 532.9 V, respectively, at 5 Hz from TENG with 10wt%Cu ‐M‐MCOF@MC, which further sensor monitor human motions. This study provides new insights into investigation MCOF tunable functionality achieve high‐performance devices.

Language: Английский

Citations

0
Rare Earth Single Atoms Steering Hydrogen Spillover Over Pd/WO3 Toward High‐Efficiency H2 Sensor at Near Room Temperature DOI Creative Commons

Zexin Wei,

Min Song, Huanxin Wang

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 26, 2025

Abstract Metal oxide semiconductor (MOS) supported Pd materials are potential candidates for H 2 sensors, while effective detection at near room temperature remains a great challenge owing to the difficulty of hydrogen migration from low temperature. Herein, guided by theoretical calculations, rare earth single atoms doping nanoparticles on WO 3 nanorods with tunable work function differences (ΔФ) and oxygen vacancies precisely developed improve sensing performances. The resultant Ce‐Pd/WO presents highest response 31.3 toward 50 ppm , showing 6 times improvement over Pd/WO which realizes trace fast . Density functional theory results reveal that energy barrier formation vacancy decrease after introducing atoms, lowest ΔФ exhibits most facile spillover desorption. in situ spectra characterization experiments further demonstrate highly improved Significantly, real‐time monitoring application device leak (0.1 V/V%) Al‐air batteries is also verified. This can shed light development high‐efficiency sensor via precise modulation functions.

Language: Английский

Citations

0