Materials Horizons最新文献_第9页

Bio-based derived carbon materials for permittivity metamaterials: dual efficacy of electromagnetic wave protection and Joule heating. 用于介电常数超材料的生物基衍生碳材料：电磁波保护和焦耳加热的双重功效。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-06-02 DOI: 10.1039/d5mh00379b

Chenchen Wang, Xiuyi Lin, Chuanshuang Hu, Yao Ding, Zhuoqun Wang, Yonghui Zhou, Xi Lin, Jiangtao Xu

{"title":"Bio-based derived carbon materials for permittivity metamaterials: dual efficacy of electromagnetic wave protection and Joule heating.","authors":"Chenchen Wang, Xiuyi Lin, Chuanshuang Hu, Yao Ding, Zhuoqun Wang, Yonghui Zhou, Xi Lin, Jiangtao Xu","doi":"10.1039/d5mh00379b","DOIUrl":"https://doi.org/10.1039/d5mh00379b","url":null,"abstract":"Epsilon-negative metamaterials (ENMs) have attracted extensive research interest due to their unique physical properties and advanced applications in electromagnetic fields. In this study, carbonized wood@Prussian blue derivative (CW@PBD) metacomposites were fabricated from a carbonized wood@Prussian blue analogue (PBA). By varying the PBD content, the negative permittivity constant of the supercomposite can be tuned between -45 and -20. The CW@PBD metacomposites exhibit outstanding electromagnetic interference (EMI) shielding effectiveness of 39 dB, with a significant 40.9% increase in absorption loss (SEA). Notably, as the PBD content rises, the CW@PBD composites transform from EMI shielding to microwave absorption. The minimum reflection loss (RLmin) reaches -49.2 dB, and the effective absorption bandwidth (EAB) covers the entire X-band. Moreover, the CW@PBD metacomposites demonstrate remarkable Joule heating capabilities, achieving a steady-state saturation temperature (Ts) of 255.68 °C at 3 V. This research offers a promising approach for synthesizing ENMs, endowing biomass-based materials with desired functions for electromagnetic applications.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Luminescent 3D chiral hybrid metal-halide perovskites for piezoelectric energy harvesting and ultrasound detection. 用于压电能量收集和超声检测的发光三维手性杂化金属卤化物钙钛矿。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-30 DOI: 10.1039/d5mh00550g

Kai Li, Zhi-Gang Li, Yong-Ji Gong, Yong-Qiang Chen, Wei Li

{"title":"Luminescent 3D chiral hybrid metal-halide perovskites for piezoelectric energy harvesting and ultrasound detection.","authors":"Kai Li, Zhi-Gang Li, Yong-Ji Gong, Yong-Qiang Chen, Wei Li","doi":"10.1039/d5mh00550g","DOIUrl":"https://doi.org/10.1039/d5mh00550g","url":null,"abstract":"Hybrid metal-halide perovskites (HMHPs) have received extraordinary attention due to their remarkable application potential in next-generation photoelectric devices. However, three-dimensional (3D) lead-free halide perovskites with piezoelectrics are rare. Here, we report the synthesis of a pair of chiral 3D piezoelectric HMHPs, [(R)-(+)-3-aminoquinuclidine]RbI3 and [(S)-(-)-3-aminoquinuclidine]RbI3 [(R-3AQ)RbI3 and (S-3AQ)RbI3], which exhibit a reversible order-disorder phase transition with temperature and near-yellow photoluminescence emission under ultraviolet irradiation. Theoretical calculations demonstrate that (R-3AQ)RbI3 possesses a direct bandgap electronic structure, relatively low elastic properties, and large piezoelectric strain coefficients. The d14 value (14.54 pC N-1) is approximately 20 times larger than that of quartz crystals. Additionally, a polycrystalline film device of (R-3AQ)RbI3 was fabricated, which shows favorable performance for piezoelectric energy harvesting. More importantly, this device exhibits exceptional underwater ultrasound detection performance, attributed to the low acoustic impedance (2.68-6.15 MRayl) of (R-3AQ)RbI3, which matches well with water (1.5 MRayl). This work opens up new avenues for utilizing 3D chiral lead-free halide perovskites in electromechanical sensing applications.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144186089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-band flexible large-area ultrasonic energy conveying via elastic chiral Landau levels. 弹性手性朗道能级双波段柔性大面积超声能量输送。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-30 DOI: 10.1039/d5mh00662g

Lei Fan, Zhihao Lan, Yafeng Chen, Jie Zhu, Zhongqing Su

{"title":"Dual-band flexible large-area ultrasonic energy conveying via elastic chiral Landau levels.","authors":"Lei Fan, Zhihao Lan, Yafeng Chen, Jie Zhu, Zhongqing Su","doi":"10.1039/d5mh00662g","DOIUrl":"https://doi.org/10.1039/d5mh00662g","url":null,"abstract":"While conventional topological metamaterials offer promising avenues for manipulating elastic waves, energy capacities are commonly restricted from narrow structural boundaries or domain walls. The emergence of the chiral Landau level via introducing synthetic pseudomagnetic fields has been demonstrated to support unique bulk states, thereby spurring versatile wave controls. However, existing research primarily implements the chiral Landau level in a single frequency regime, impeding the applications of multiband functional devices. In this study, we realize the ultrasonic chiral Landau level of elastic waves in two separated frequency regions based on integrated topological valley phononic crystals. We demonstrate the chiral Landau level-induced dual-band bulk transport of ultrasonic waves with exceptional robustness against geometric perturbation, by numerical simulations and experiments. Remarkably, we achieve flexible ultrasonic energy manipulation including wave steering along an arbitrary route and energy splitting, through strategically tailoring the synthetic pseudomagnetic field in valley topological metamaterials. The developed topological elastic metamaterials with the dual-band chiral Landau levels functioning as extraordinary bulk states can find potential applications in multiband and multidirectional ultrasonic signal processing and energy management.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144186088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling selectivity trends for CO₂ reduction reaction over Ti₃C₂T_x MXene: the key role of less-stable intermediate states and coadsorbates. 揭示Ti3C2Tx MXene上CO2还原反应的选择性趋势：不稳定中间态和共吸附的关键作用。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-30 DOI: 10.1039/d5mh00168d

Pablo Lozano-Reis, Kai S Exner

{"title":"Unveiling selectivity trends for CO2 reduction reaction over Ti3C2Tx MXene: the key role of less-stable intermediate states and coadsorbates.","authors":"Pablo Lozano-Reis, Kai S Exner","doi":"10.1039/d5mh00168d","DOIUrl":"https://doi.org/10.1039/d5mh00168d","url":null,"abstract":"The electrochemical conversion of carbon dioxide via the CO2 reduction reaction (CO2RR) is an attractive strategy for the production of value-added chemicals. However, the CO2RR suffers from a selectivity problem due to the large number of carbon-based products that can be obtained and the competing hydrogen evolution reaction (HER). It has been experimentally shown that the ratio and chemical nature of terminal groups, Tx, present on the Ti3C2Tx (Tx = O, OH or F) surface under electrochemical conditions affect selectivity and activity trends of the MXene electrocatalyst. In the present manuscript, we use electronic structure theory calculations to comprehend the selectivity trends in the CO2RR over Ti3C2Tx with different terminal groups, including *OH and *F adsorbates. We show that the traditional modeling approach used in calculations to derive activity and selectivity trends, which only includes the most stable intermediate state in the analysis, is not consistent with experimental observations. Rather, it is necessary to include energetically less favorable intermediate states and coadsorbates in the analysis of mechanistic pathways. Remarkably, the inclusion of less-stable intermediates, although stable on the electrode surface, and coadsorbates opens up new reaction channels that are energetically more favorable, and only by considering these extensions are we able to map our results to the experimental data. We believe that the reported finding is not only limited to the CO2RR or MXene systems, but likely also plays an important role in other catalytic transformations under applied bias.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning-assisted X-ray absorption analysis of bimetallic catalysts. 机器学习辅助双金属催化剂的x射线吸收分析。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-30 DOI: 10.1039/d5mh00387c

Shuting Xiang, Marc R Knecht, Anatoly Frenkel

引用次数: 0

Bacterial cellulose-based functional yarns: from design to applications. 基于细菌纤维素的功能性纱线：从设计到应用。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-30 DOI: 10.1039/d5mh00456j

Yilu Xu, Xue Lu, Cancan Jin, Danyu Liu, Yingjia Tong, Yixuan Zhang, Xun Liu, Pan Xue, Qufu Wei, Pengfei Lv

{"title":"Bacterial cellulose-based functional yarns: from design to applications.","authors":"Yilu Xu, Xue Lu, Cancan Jin, Danyu Liu, Yingjia Tong, Yixuan Zhang, Xun Liu, Pan Xue, Qufu Wei, Pengfei Lv","doi":"10.1039/d5mh00456j","DOIUrl":"https://doi.org/10.1039/d5mh00456j","url":null,"abstract":"Bio-polymer bacterial cellulose, with its renewable and carbon neutral nature, superior biocompatibility, tailorable surface chemistry, high purity and mechanical properties, has attracted wide attention from basic science to technical applications. In this review, benefiting from its unique physicochemical properties, superior weaving ability, easy processing and molding, an up-to-date account of the recent advancements in bacterial cellulose-derived functional yarns and their emerging applications in reinforcement materials, flexible wearables, energy storage and conversion, as well as antibacterial and discolored textiles is provided for the first time. Firstly, this work systematically summarizes the basic characteristics, formation strategies and preparation processes of bacterial cellulose and derived bio-based yarns. Moreover, the review focuses on the latest progress of bacterial cellulose-based functional yarns and their potential emerging applications. Furthermore, scalable and low-cost bio-bacterial cellulose synthesis strategies for industrial applications are discussed. Finally, the challenges and opportunities of bacterial cellulose-based functional yarns and textiles in practical applications and emerging directions are briefly discussed. This review is expected to provide a new paradigm for sustainably developing non-petroleum bacterial cellulose functional materials and their emerging applications in energy devices, biomedical technology and smart textiles, and promote the technological innovation and the development of materials science in related fields.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144186087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Leveraging solvent affinity for phase-selective doping to enhance doping efficiency in a DPP-based n-type conjugated polymer. 利用溶剂亲和性相选择掺杂提高dpp基n型共轭聚合物的掺杂效率。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-29 DOI: 10.1039/d4mh01805b

Soyeong Jang, Osnat Zapata-Arteaga, Diego Rosas Villalva, Guorong Ma, Andrew Bates, Anirudh Sharma, Abdul-Hamid Emwas, Yongcao Zhang, Jianhua Han, Xiaodan Gu, Derya Baran

{"title":"Leveraging solvent affinity for phase-selective doping to enhance doping efficiency in a DPP-based n-type conjugated polymer.","authors":"Soyeong Jang, Osnat Zapata-Arteaga, Diego Rosas Villalva, Guorong Ma, Andrew Bates, Anirudh Sharma, Abdul-Hamid Emwas, Yongcao Zhang, Jianhua Han, Xiaodan Gu, Derya Baran","doi":"10.1039/d4mh01805b","DOIUrl":"https://doi.org/10.1039/d4mh01805b","url":null,"abstract":"Phase-selective doping holds promise for optimizing the electronic properties of conjugated polymers. This approach has been observed on a selection of polymer hosts and dopants, but it is unclear how to translate such an effect to other materials. In our study, we show that in coprocessing techniques, the affinity of the solvent to the polymer host, determined by Hansen solubility parameters, influences whether a dopant is primarily located within the amorphous phase or distributed across both the crystalline and amorphous phases. We used tetrabutylammonium fluoride (TBAF) as the dopant, an n-type DPP-based polymer host (2PyDPP-2CNTVT), and five common solvents. Optical, electrical, and structural characterizations reveal that solvents with high polymer affinity lead to low solid-state order and high Seebeck coefficients S but exhibit low electrical conductivity σ. Alternatively, solvents with partial affinity for both polymer and dopant produce films with mixed phases, where the dopant concentrates in amorphous regions. These films retain a higher structural order at elevated doping levels, achieving electrical conductivity σ, an order of magnitude higher than high-affinity solvents at similar doping concentrations. Our findings propose a solvent-centric strategy for phase-selective doping, potentially fine-tuning the electronic properties for various applications.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144172087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Materials Horizons 2024 Outstanding Paper Award 材料地平线2024杰出论文奖。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-29 DOI: 10.1039/D5MH90051D

引用次数: 0

Machine learning in biosignal analysis from wearable devices. 可穿戴设备生物信号分析中的机器学习。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-29 DOI: 10.1039/d5mh00451a

Inhea Jeong, Won Gi Chung, Enji Kim, Wonjung Park, Hayoung Song, Jakyoung Lee, Myoungjae Oh, Eunmin Kim, Joonho Paek, Taekyeong Lee, Dayeon Kim, Seung Hyun An, Sumin Kim, Hyunjoo Cho, Jang-Ung Park

{"title":"Machine learning in biosignal analysis from wearable devices.","authors":"Inhea Jeong, Won Gi Chung, Enji Kim, Wonjung Park, Hayoung Song, Jakyoung Lee, Myoungjae Oh, Eunmin Kim, Joonho Paek, Taekyeong Lee, Dayeon Kim, Seung Hyun An, Sumin Kim, Hyunjoo Cho, Jang-Ung Park","doi":"10.1039/d5mh00451a","DOIUrl":"https://doi.org/10.1039/d5mh00451a","url":null,"abstract":"The advancement of wearable bioelectronics has significantly improved real-time biosignal monitoring, enabling continuous health tracking and providing personalized medical insights. However, the sheer volume and complexity of biosignal data collected over extended periods, along with noise, missing values, and environmental artifacts, present significant challenges for accurate analysis. Machine learning (ML) plays a crucial role in biosignal analysis by improving processing capabilities, enhancing monitoring accuracy, and uncovering hidden patterns and relationships within datasets. Effective ML-driven biosignal analysis requires careful model selection, considering data preprocessing needs, feature extraction strategies, computational efficiency, and accuracy trade-offs. This review explores key ML algorithms for biosignal processing, providing guidelines on selecting appropriate models based on data characteristics, processing goals, computational efficiency, and accuracy requirements. We discuss data preprocessing techniques, ML models (clustering, regression, classification), and evaluation methods for assessing the accuracy and reliability of ML-driven analyses. Furthermore, we introduce ML applications in health monitoring, disease diagnosis, and prediction across neurological, cardiovascular, biochemical, and other biosignals. Finally, we discuss the integration of ML with wearable bioelectronics and its revolutionary impact on future healthcare systems.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144172090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on light-responsive luminescence properties of carbon dots and their applications. 碳点的光响应发光特性及其应用研究。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2025-05-28 DOI: 10.1039/d5mh00676g

Zhimeng Ma, Qiang Fu, Kailin Zhang, Shouhong Sun, Mingbo Yue

{"title":"Research on light-responsive luminescence properties of carbon dots and their applications.","authors":"Zhimeng Ma, Qiang Fu, Kailin Zhang, Shouhong Sun, Mingbo Yue","doi":"10.1039/d5mh00676g","DOIUrl":"https://doi.org/10.1039/d5mh00676g","url":null,"abstract":"Carbon dots (CDs), as zero-dimensional carbon-based nanomaterials, have become a new generation of smart luminescent materials because of their tunable optical properties, excellent biocompatibility and controllable synthesis strategies. On the basis of the difference in their optical response behavior, CDs can be classified into two main systems: photoluminescent and photochromism. Photoluminescent CDs achieve luminescence, including fluorescence, room temperature phosphorescence (RTP), and thermally activated delayed fluorescence (TADF), through the modulation of the carbon core structure, surface state engineering, molecular state jumping, and crosslink-enhanced emission (CEE) mechanisms. On the other hand, photochromic CDs confer dynamic optical response properties to materials through free radical-mediated electron transfer, energy transfer modulation, or molecular isomerization. In this review, we systematically elucidate the underlying luminescence mechanisms of these two types of systems and introduce the unique properties and application prospects of photoresponsive CDs in biomedicine, catalysis, and anticounterfeiting. We summarize the latest research progress on photoresponsive CDs, analyze their material properties, and discuss the key challenges to be addressed in their future development.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0