Materials Horizons最新文献_第2页

Multiscale scattering design of bio-based phosphorylated nanocellulose aerogels for flame-retardant radiative cooling. 生物基磷酸化纳米纤维素气凝胶阻燃辐射冷却的多尺度散射设计。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-28 DOI: 10.1039/d6mh01470d

Shaodan Xu, Chun He, Ting Lü, Mingjie Guo, Ying Pan, Lulu Xu, Kate Nguyen, Yan Zhang, Yao Yuan, Wei Wang

{"title":"Multiscale scattering design of bio-based phosphorylated nanocellulose aerogels for flame-retardant radiative cooling.","authors":"Shaodan Xu, Chun He, Ting Lü, Mingjie Guo, Ying Pan, Lulu Xu, Kate Nguyen, Yan Zhang, Yao Yuan, Wei Wang","doi":"10.1039/d6mh01470d","DOIUrl":"https://doi.org/10.1039/d6mh01470d","url":null,"abstract":"Optimizing radiative cooling aerogels requires understanding how thermal insulation and optical properties jointly influence the temperature of the space beneath them. However, concurrent changes in filler composition and structure complicate this relationship. Here, we investigate a comparative design using hollow fillers at different characteristic length scales: microscale hollow glass spheres (micro-GM) and nanoscale hollow SiO2 spheres (nano-HS), separately incorporated into a phosphorylated cellulose nanofiber (P-CNF)/BaSO4 matrix. The resulting aerogels exhibit comparable solar reflectance (93.8-94.0%) and atmospheric-window emittance (96.5-96.8%), but different thermal conductivities and outdoor chamber temperature responses. Although the micro-GM composite has lower thermal conductivity, a lower chamber temperature is recorded beneath the nano-HS composite. The latter achieves a maximum chamber temperature reduction of 12.4 °C relative to the chamber covered with pristine P-CNF. This contrast indicates that thermal conductivity alone is insufficient to predict cooling of the covered space under the tested conditions. The composite aerogels also exhibit suppressed heat release, while silanization of the nano-HS composite improves surface hydrophobicity and retains comparable outdoor chamber temperature profiles. These findings provide a comparative basis for evaluating hollow-filler architectures through both optical and thermal characterization and the temperature response of the covered space, without attributing the observed differences solely to particle size.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149284151","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

From goldene to noblene: exhaustive enumeration of the ordered Au-Ag-Cu monolayer alloys. 从金到贵宝：有序Au-Ag-Cu单层合金的详尽列举。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-28 DOI: 10.1039/d6mh01971d

Marcelo Lopes Pereira Junior

{"title":"From goldene to noblene: exhaustive enumeration of the ordered Au-Ag-Cu monolayer alloys.","authors":"Marcelo Lopes Pereira Junior","doi":"10.1039/d6mh01971d","DOIUrl":"https://doi.org/10.1039/d6mh01971d","url":null,"abstract":"Two-dimensional metals became a laboratory reality with the isolation of goldene, a gold sheet one atom thick released by chemical exfoliation, which raises the question of what alloying can achieve on the same close-packed lattice. Here we combine an exhaustive enumeration of derivative superstructures with density functional theory to map the ordered Au-Ag-Cu monolayer alloys, relaxing every symmetry-inequivalent arrangement up to four atoms per cell and extending the set with larger cells selected by a fitted model. We find that composition sets the scale of the mixing energy while the arrangement of the atoms adds a spread of 13 meV per atom within a fixed cell stoichiometry, a spread that at one stoichiometry exceeds 50 meV per atom between two arrangements of the same three atoms and at two stoichiometries decides the sign. The energetics is carried by a competition between Au-Cu contacts, which bind, and Ag-Cu contacts, which do not, and bulk enthalpies computed under the same protocol show that all three unlike-pair interactions strengthen per bond in the monolayer, with Au-Cu the outlier at more than twice its bulk value. A pair model completed by an elastic size-mismatch term reproduces the computed energies with a mean absolute error of 5.5 meV per atom and returns a composition landscape in which no balanced ternary composition is resolved as reaching the convex hull. One equimolar ordering, which we name noblene, is the only structure in which every atom is surrounded exclusively by unlike species, and it is dynamically stable and metallic, and carries the highest Poisson's ratio of the four, 0.507 against 0.448 for the highest of the pure monolayers. Since noblene sits on the lattice that goldene already realizes, the route that produced goldene is a plausible starting point for its synthesis.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149284153","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

From molecular ferroelectrics to intelligent sensors: β-phase engineering of PVDF by a discrete Ni-Tb complex for self-powered AI-assisted human activity recognition. 从分子铁电体到智能传感器：用Ni-Tb络合物对PVDF进行β相工程，用于自供电的ai辅助人类活动识别。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-28 DOI: 10.1039/d6mh01650b

Shewli Pratihar, Bapan Jana, Mohammed Hassan Shaikh, Niloy Mridha, Akash M Chandran, Megha Garg, Vishnu N Sasi, P Sravandas, Dipanti Borah, Prasanna Kumar S Mural, Maheswaran Shanmugam

{"title":"From molecular ferroelectrics to intelligent sensors: β-phase engineering of PVDF by a discrete Ni-Tb complex for self-powered AI-assisted human activity recognition.","authors":"Shewli Pratihar, Bapan Jana, Mohammed Hassan Shaikh, Niloy Mridha, Akash M Chandran, Megha Garg, Vishnu N Sasi, P Sravandas, Dipanti Borah, Prasanna Kumar S Mural, Maheswaran Shanmugam","doi":"10.1039/d6mh01650b","DOIUrl":"https://doi.org/10.1039/d6mh01650b","url":null,"abstract":"Growing environmental and ecological concerns associated with conventional energy-harvesting technologies have accelerated the search for sustainable alternatives such as piezoelectric nanogenerators (PENGs). A key challenge in this domain is the stabilization of the electroactive β-phase of PVDF, which is very important for achieving high piezoelectric performance. Although several advanced methods exist, inducing the polar β-phase under mild conditions using molecular additives remains an emerging and promising strategy. In this work, we demonstrate that a discrete inorganic complex [NiTb(L)(NO3)3] (NiTb; where H2L = 6,6'-((1E,1'E)-(((1R,2S)-1,2-diphenylethane-1,2-diyl)bis(azaneylylidene))bis(methaneylylidene)) bis(2-methoxyphenol)), crystallized in a non-centrosymmetric polar space group, effectively facilitates the formation of the electroactive β-PVDF phase. Among the fabricated devices with varying NiTb loadings (3-10 wt%), the 7 wt% composition shows a high piezoelectric coefficient (d33 ≈ 32 pm V-1), open-circuit voltage (∼15 ± 1.5 V), short-circuit current (∼0.4 ± 0.04 µA), and power density (1.77 ± 0.16 µW cm-2). Furthermore, integration with an AI/ML framework based on ANN-LSTM models enables real-time classification of ten distinct human activities with 97% accuracy, highlighting its potential for next-generation wearable and intelligent electronic systems.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149284211","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

Sheath-core microporous polyamide 6 fibers via in situ foaming and bicomponent melt spinning for thermal insulation. 经原位发泡和双组分熔融纺丝制成的隔热用套芯微孔聚酰胺6纤维。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-27 DOI: 10.1039/d6mh01535b

Ying Zhu, Xin Zhang, Xubin Wang, Longfeng Zhang, Jiajun He, Yongqi Ji, Yucong Wei, Xueli Wang, Ruchao Yuan, Jianyong Yu, Faxue Li

{"title":"Sheath-core microporous polyamide 6 fibers via in situ foaming and bicomponent melt spinning for thermal insulation.","authors":"Ying Zhu, Xin Zhang, Xubin Wang, Longfeng Zhang, Jiajun He, Yongqi Ji, Yucong Wei, Xueli Wang, Ruchao Yuan, Jianyong Yu, Faxue Li","doi":"10.1039/d6mh01535b","DOIUrl":"https://doi.org/10.1039/d6mh01535b","url":null,"abstract":"The development of thermal insulation materials that simultaneously integrate lightweight characteristics, mechanical robustness, and wearing comfort remains a formidable challenge. In this study, a facile strategy was proposed for the continuous fabrication of sheath-core microporous polyamide 6 fibers (MPA6 fibers) via in situ foaming and bicomponent melt spinning. By regulating the content of the foaming agent masterbatch (FAM) and the drawing ratio, the resulting MPA6 fibers achieved a density of 0.90 g cm-3 (21.1% lower than that of PA6 fibers) while maintaining a tensile strength of 280.4 MPa. The fabrics (MPAW and MPAK fabrics) fabricated from these fibers demonstrated enhanced thermal insulation performance under both hot and cold conditions, indicating their potential for personal thermal management. Notably, the MPAW fabric combined high air permeability (307.7 mm s-1) with good durability, which is beneficial for practical applications. This fabrication strategy not only provides a feasible approach for developing lightweight and thermally insulating textiles, but also offers new possibilities for the design of high-performance multifunctional fibers.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149259836","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

Engineering zero thermal expansion over a wide temperature range in PbTiO₃-based ferroelectrics. 工程零热膨胀在宽温度范围内的pbtio3基铁电体。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-27 DOI: 10.1039/d6mh01703g

Zhao Pan, Mengqi Ye, Yan Suo, Duo Wang, Xi Shen, Maocai Pi, Guangkai Zhang, Xubin Ye, Yao Shen, Richeng Yu, Youwen Long

{"title":"Engineering zero thermal expansion over a wide temperature range in PbTiO3-based ferroelectrics.","authors":"Zhao Pan, Mengqi Ye, Yan Suo, Duo Wang, Xi Shen, Maocai Pi, Guangkai Zhang, Xubin Ye, Yao Shen, Richeng Yu, Youwen Long","doi":"10.1039/d6mh01703g","DOIUrl":"https://doi.org/10.1039/d6mh01703g","url":null,"abstract":"Thermal expansion mismatches in precision optics, aerospace, and electronics can lead to delamination and fatigue, driving urgent demand for zero thermal expansion (ZTE) materials. At present, the majority of single-phase ZTE materials only function effectively below 500 K, limiting potential applications in many critical fields. Herein, we employ high-pressure and high-temperature synthesis to develop (1 - x)PbTiO3-xBi(Cu3/4W1/4)O3 perovskite ferroelectrics, utilizing spontaneous volume ferroelectrostriction to achieve an ultrawide ZTE regime from 300 to 725 K. In situ synchrotron X-ray diffraction tracks the lattice contraction and phase stability, while transmission electron microscopy provides insights into atomic-scale A/B-site cation displacements and tetragonal distortions. First-principles calculations reveal that polar ferroelectric-active Bi3+, Cu2+, and W6+ ions synergistically reorganize electron density to reinforce ferroelectric distortion, while Cu-derived van Hove singularities near the Fermi level dominate the density of states and govern the elastic anomalies linked to the ultrawide ZTE behaviors. This study extends the scope of high-temperature ZTE materials and establishes a ferroelectric-active ion-doping strategy to engineer thermal expansion.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149259686","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

Depolarization-field-regulated MXene/MoSe₂ heterostructures via geometry and phase engineering for electromagnetic wave absorption. 基于几何和相位工程的去极化场调节MXene/MoSe2异质结构的电磁波吸收。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-26 DOI: 10.1039/d6mh01750a

Ge Wang, Yunpeng Shen, Xiong Lv, Faxiang Qin, Changfeng Li

{"title":"Depolarization-field-regulated MXene/MoSe2 heterostructures via geometry and phase engineering for electromagnetic wave absorption.","authors":"Ge Wang, Yunpeng Shen, Xiong Lv, Faxiang Qin, Changfeng Li","doi":"10.1039/d6mh01750a","DOIUrl":"https://doi.org/10.1039/d6mh01750a","url":null,"abstract":"Interfacial polarization is a key loss mechanism in dielectric electromagnetic wave absorbers, yet most core-shell heterostructures have been optimized mainly through compositional complexity rather than spatial interface design. Here, we report a depolarization-field-guided strategy to regulate interfacial polarization in MXene/MoSe2 heterostructures by coupling geometry engineering with phase modulation. Three representative architectures-lamellar, hollow spherical, and hollow tubular MXene/MoSe2-were constructed to clarify the role of interface geometry. Discrete dipole approximation simulations reveal that the hollow tubular configuration substantially lowers the depolarization factor and extends the effective axial interface, leading to intensified local electric fields and enhanced polarized charge accumulation. Further regulation of the 1T/2H MoSe2 phase ratio generates metal-semiconductor heterointerfaces that promote charge redistribution and polarization relaxation. As a result, the optimized hollow tubular MXT-MoSe2-2 absorber delivers a minimum reflection loss of -61.40 dB at 2.0 mm and an effective absorption bandwidth of 6.10 GHz. This work establishes geometry/phase co-design as an effective route for manipulating depolarization fields and interfacial charge transport in high-performance electromagnetic wave absorbing materials.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149259743","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

High-current-density solid-state lithium metal batteries through interface engineering. 高电流密度固态锂金属电池的界面工程。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-26 DOI: 10.1039/d6mh01375a

Akuil M Saju, Max Ivers, Rajan Jose, Chun-Chen Yang, Venkataraman Thangadurai

{"title":"High-current-density solid-state lithium metal batteries through interface engineering.","authors":"Akuil M Saju, Max Ivers, Rajan Jose, Chun-Chen Yang, Venkataraman Thangadurai","doi":"10.1039/d6mh01375a","DOIUrl":"https://doi.org/10.1039/d6mh01375a","url":null,"abstract":"The rapid evolution of solid-state battery technology has emphasised the importance of interface engineering to overcome key limitations, including poor interfacial contact, lithium dendrite formation, and unstable electrode-electrolyte interfaces. This article provides a critical overview of recent advances in interfacial modification strategies tailored to various solid-state electrolytes, including oxide-, sulphide-, halide-, and polymer-based systems. Emphasis is placed on integrating ultrathin coatings, advanced deposition techniques, and in situ interfacial formation to enhance electrochemical stability, suppress lithium dendrites, and enable high-current-density operation. By systematically categorising techniques such as atomic layer deposition, pulsed laser deposition, chemical vapour deposition, and wet-chemical solution-based methods, we evaluate their effectiveness at stabilising the Li-metal interface for application in all-solid-state metal batteries. This review aims to serve as a roadmap for rational interface design, material selection, and fabrication routes, and to assess their impact on battery performance and cycling life.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149259667","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

Co-optimizing photodeformation and stiffness in azobenzene polyimides for enhanced photoinduced stress and multimodal sensing. 偶氮苯聚酰亚胺的光变形和刚度协同优化，以增强光致应力和多模态传感。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-23 DOI: 10.1039/d6mh01357k

Xingpeng Chai, Menghan Zhang, Dandan Xu, Zehao Wang, Jia Wei, Yanlei Yu

{"title":"Co-optimizing photodeformation and stiffness in azobenzene polyimides for enhanced photoinduced stress and multimodal sensing.","authors":"Xingpeng Chai, Menghan Zhang, Dandan Xu, Zehao Wang, Jia Wei, Yanlei Yu","doi":"10.1039/d6mh01357k","DOIUrl":"https://doi.org/10.1039/d6mh01357k","url":null,"abstract":"Photomechanical-to-electrical conversion offers an alternative pathway for optical sensing, but reliable and highly linear signals require large and reproducible photoinduced stress. Achieving such mechanical output remains challenging because efficient photodeformation and a high elastic modulus are often difficult to reconcile through molecular design. Herein, the backbone architecture of azobenzene polyimides (azoPIs) was systematically engineered by varying the dianhydride structure while maintaining identical azobenzene content and flexible-segment fraction. Among the resulting polymers, the 6FDA-based azoPI (azoPI-6FDA) exhibits the most favorable combination of mechanical stiffness and photodeformation (E = 3.27 GPa and a bending angle of 75° under UV irradiation) and possesses a high photoinduced stress of 2.0 MPa. AzoPI-6FDA was subsequently integrated with PVDF-TrFE to construct flexible photomechanical-to-electrical sensing devices in both laminated and coaxial fiber configurations. In the laminated device, photoinduced stress generated by azoPI-6FDA was transferred to PVDF-TrFE and converted into a piezoelectric voltage of up to 9.0 V. Both the photoinduced stress and electrical output exhibited nearly linear dependences on UV intensity, with correlation coefficients approaching 0.99, enabling quantitative optical sensing. The coaxial electrospun membrane combined stable electrical output with an elongation at break exceeding 200% and maintained reliable sensing performance under bending. Moreover, UV irradiation generated predominantly unipolar voltage signals, whereas mechanical loading and unloading produced characteristic bipolar piezoelectric signals, allowing direct discrimination between optical and mechanical stimuli without additional signal processing. This work connects molecular backbone design with photoinduced stress generation and device-level signal transduction, providing a robust materials strategy for flexible, self-powered multimodal sensing.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149259709","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

Sonochemical precursor engineering for scalable covalent organic framework synthesis. 可扩展共价有机骨架合成的声化学前体工程。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-23 DOI: 10.1039/d6mh01820c

Qian Zou, Niaz Ali Khan, Mengying Luo, Xinlin Zha, Yong Zheng, Chandra S Azad, Sami Ullah, Azhar Ali Ayaz Pirzado, Bart Van der Bruggen, Zhongyi Jiang, Dong Wang

{"title":"Sonochemical precursor engineering for scalable covalent organic framework synthesis.","authors":"Qian Zou, Niaz Ali Khan, Mengying Luo, Xinlin Zha, Yong Zheng, Chandra S Azad, Sami Ullah, Azhar Ali Ayaz Pirzado, Bart Van der Bruggen, Zhongyi Jiang, Dong Wang","doi":"10.1039/d6mh01820c","DOIUrl":"https://doi.org/10.1039/d6mh01820c","url":null,"abstract":"Covalent organic frameworks (COFs) are promising functional materials, yet scalable synthesis of highly crystalline COFs remains a persistent challenge because existing synthetic strategies primarily focus on direct framework formation. Here, we introduce sonochemical precursor engineering (SPE), a two-step processing strategy in which mild bath sonication generates amorphous precursors that are subsequently crystallized by vapor-assisted framework development. Using this approach, three representative imine- and β-ketoenamine-linked COFs were obtained with high crystallinity at scales approaching 10 g, and the representative TFP-TAT framework exhibited well-defined porosity and excellent chemical and hydrothermal stability. Structural characterization confirms that sonication generates amorphous precursors, which subsequently evolve into highly crystalline COFs while preserving the intended framework structure. Computational, spectroscopic, and photoelectrochemical analyses demonstrate that the synthesized COFs retain their intrinsic structure-property relationships, which are further validated through photocatalytic hydrogen evolution. By decoupling precursor formation from framework crystallization, this work provides a practical route toward gram-scale production of highly crystalline COFs and broadens the processing toolbox available for COF synthesis.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149259806","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

Photovoltage-regulated interfacial carrier delivery enables deep nitrate reduction and bias-free paired conversion. 光电调节的界面载流子输送使硝酸盐深度还原和无偏置配对转换成为可能。

IF 11.4 2区材料科学

Materials Horizons Pub Date : 2026-10-22 DOI: 10.1039/d6mh01638c

Jiguang Li, Xiangyu Guo, Siye Huang, Guoan Wu, Yoshitaro Nose, Shigeru Ikeda, Kang Wang, Feng Jiang

{"title":"Photovoltage-regulated interfacial carrier delivery enables deep nitrate reduction and bias-free paired conversion.","authors":"Jiguang Li, Xiangyu Guo, Siye Huang, Guoan Wu, Yoshitaro Nose, Shigeru Ikeda, Kang Wang, Feng Jiang","doi":"10.1039/d6mh01638c","DOIUrl":"https://doi.org/10.1039/d6mh01638c","url":null,"abstract":"Photoelectrochemical nitrate reduction offers a route to couple solar-energy conversion with nitrogen recovery, yet the role of a photovoltage-mediated interfacial driving force in governing the depth of multielectron NOx reduction remains poorly understood. Here, we develop a scalable Cu3BiS3/InCdS/TiO2/CoCu multilayer photocathode and use a matched CdS-buffered counterpart to isolate the influence of absorber/buffer interfacial regulation on nitrate-to-ammonium conversion. Replacing CdS with InCdS enhances the photovoltage response, accelerates carrier extraction, prolongs carrier lifetime and lowers interfacial resistance while retaining the same TiO2/CoCu reaction interface. These changes coincide with suppressed NO2- accumulation and enhanced NH4+ formation, providing an experimentally accessible relationship between interfacial carrier energetics, carrier-delivery kinetics and NOx reduction depth. The optimized photocathode reaches an NH4+ faradaic efficiency of 92.67% ± 2.33% at 0 V versus RHE and a yield rate of 14.93 ± 0.48 µmol h-1 cm-2 at -0.3 V versus RHE. Coupling this Cu3BiS3-based photocathode with a Cu-based 5-hydroxymethylfurfural oxidation anode further enables bias-free paired conversion, sustaining cathodic NH4+ production with faradaic efficiencies above 83% and selective anodic HMFCA formation above 98%. This work identifies interfacial photovoltage and carrier delivery as experimentally resolvable variables associated with the progression of the PEC NO3RR and extends these insights to integrated solar-driven nitrate valorization and biomass upgrading.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149236249","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