Materials Horizons最新文献_第8页

Fully bio-based water-resistant wood coatings derived from tree bark. 提取自树皮的全生物基防水木器涂料。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-18 DOI: 10.1039/d4mh01010h

Fengyang Wang, Mohammad Morsali, Jānis Rižikovs, Ievgen Pylypchuk, Aji P Mathew, Mika H Sipponen

{"title":"Fully bio-based water-resistant wood coatings derived from tree bark.","authors":"Fengyang Wang, Mohammad Morsali, Jānis Rižikovs, Ievgen Pylypchuk, Aji P Mathew, Mika H Sipponen","doi":"10.1039/d4mh01010h","DOIUrl":"https://doi.org/10.1039/d4mh01010h","url":null,"abstract":"Surface protection is essential when using wood as a construction material. However, the industry lacks sustainable alternatives to replace the presently dominant fossil-based synthetic water-resistant coatings. Here, we show a fully bio-based wood surface protection system using components sourced from birch bark and spruce bark, inspired by the natural barrier function of bark in trees. The coating formulation contains suberinic acids and spruce bark polyphenols, resulting in a waterborne suspension that is safe and easy to apply to wood. The polyphenols play a dual role in the formulation as they stabilize the water-insoluble suberinic acids and serve as nanofillers in the thermally cured coating, enabling the adjustment of the mechanical properties of the resulting coating. When applied to spruce wood, the coating formulation with 10% polyphenol and 90% suberinic acids achieved a water absorption value of 100 g m-2 after 72 hours of water exposure, demonstrating superior performance compared to an alkyd emulsion coating. We conclude that instead of combusting tree bark, it can serve as a valuable resource for wood protection, closing the circle in the wood processing industry.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453644","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

Selectively self-recyclable, highly transparent and fire-safe polycarbonate plastic enabled by thermally responsive phosphonium-phosphate. 通过热响应磷酸盐实现选择性自循环、高度透明和防火安全的聚碳酸酯塑料。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-18 DOI: 10.1039/d4mh01139b

Pan Deng, Lin Chen, Yue Li, Bo-Wen Liu, Xiu-Li Wang, Yu-Zhong Wang

{"title":"Selectively self-recyclable, highly transparent and fire-safe polycarbonate plastic enabled by thermally responsive phosphonium-phosphate.","authors":"Pan Deng, Lin Chen, Yue Li, Bo-Wen Liu, Xiu-Li Wang, Yu-Zhong Wang","doi":"10.1039/d4mh01139b","DOIUrl":"https://doi.org/10.1039/d4mh01139b","url":null,"abstract":"Both the circular economy and fire-safety of polymer plastics have become a global consensus. Herein, an integrated strategy for selectively self-recyclable, highly-transparent and fire-safe polycarbonate plastic is proposed by thermally responsive phosphonium-phosphate (DP). During its service life, DP, as a flame-retardant with good compatibility, enables polycarbonate plastic with high transparency in visible light, excellent self-extinguishing and high fire-safety. After consumption, DP, as a catalyst, triggers the selective self-recycling of DP-containing polycarbonate in mixed plastics and even in same-kind polycarbonate plastics without an external catalyst. Importantly, the oxygen-consuming mechanism at high temperature in fire accidents (>350 °C) and the double hydrogen bond catalysis mechanism at a lower temperature (180 °C) of DP are key to the life cycle management of polycarbonate from use-stage to post-consumption. This work inspires a new solution to plastic pollution by designing sustainable plastics that satisfy both service-stage and end-of-life criteria, striving towards a zero-waste circular economy.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453649","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

Recent progress of gas sensors based on perovskites. 基于过氧化物的气体传感器的最新进展。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-18 DOI: 10.1039/d4mh01306a

Chenghong Wei, Ziyi Guo, Heng Wang, Shiqi Zhang, Dandan Hao, Jia Huang

引用次数: 0

Fluid mediated communication among flexible micro-posts in chemically reactive solutions. 化学反应溶液中柔性微柱之间以流体为媒介的交流。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-17 DOI: 10.1039/d4mh01111b

Moslem Moradi, Oleg E Shklyaev, Wenzheng Shi, Anna C Balazs

{"title":"Fluid mediated communication among flexible micro-posts in chemically reactive solutions.","authors":"Moslem Moradi, Oleg E Shklyaev, Wenzheng Shi, Anna C Balazs","doi":"10.1039/d4mh01111b","DOIUrl":"https://doi.org/10.1039/d4mh01111b","url":null,"abstract":"Communication in biological systems typically involves enzymatic reactions that occur within fluids confined between the soft, elastic walls of bio-channels and chambers. Through the inherent transformation of chemical to mechanical energy, the fluids can be driven to flow within the confined domains. Through fluid-structure interactions, the confining walls in turn are deformed by and affect this fluid flow. Imbuing synthetic materials with analogous feedback among chemo-mechanical, hydrodynamic and fluid-structure interactions could enable materials to perform self-driven communication and self-regulation. Herein, we develop computational models to determine how chemo-hydro-mechanical feedback affects interactions in biomimetic arrays of chemically active and passive micro-posts anchored in fluid-filled chambers. Once activated, the enzymatic reactions trigger the latter feedback, which generates a surprising variety of long-range, cooperative motion, including self-oscillations and non-reciprocal interactions, which are vital for propagating coherent, directional signals over net distances in fluids. In particular, the array propagates a distinct message; each post interprets the message; and the system responds with a specific mode of organized, collective behavior. This level of autonomous remote control is relatively rare in synthetic systems, particularly as this system operates without external electronics or power sources and only requires the addition of chemical reactants to function.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453643","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

Super-resolution fluorescence imaging of PEDOT:PSS films. PEDOT:PSS 薄膜的超分辨率荧光成像。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-15 DOI: 10.1039/d4mh01223b

Jun-Dan Huang, Li-Jun Mei, Weibing Kuang, Feng-Yu Zhu, Rui Tian, Wanxia Wei, Chong Li, Ya-Long Wang, Yinhua Zhou, Ming-Qiang Zhu

{"title":"Super-resolution fluorescence imaging of PEDOT:PSS films.","authors":"Jun-Dan Huang, Li-Jun Mei, Weibing Kuang, Feng-Yu Zhu, Rui Tian, Wanxia Wei, Chong Li, Ya-Long Wang, Yinhua Zhou, Ming-Qiang Zhu","doi":"10.1039/d4mh01223b","DOIUrl":"https://doi.org/10.1039/d4mh01223b","url":null,"abstract":"Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is a popular conduction polymer and widely used in organic electronics, bioelectronics and printed electronics. It is believed that PEDOT:PSS has a core-shell colloidal structure dispersed in the formulation. However, the size and surface functional groups of the PEDOT:PSS dispersion and films remain to be visualized. Here, we have introduced the concept of aggregation-induced emission (AIE) to super-resolution imaging for designing the cationic probe TPE-4N+ and accomplished the nanoscale optical visualization of PEDOT:PSS films through reversible electrostatic interactions. Information on the PEDOT:PSS size and surface charge has been successfully collected via super-resolution imaging. The full-width at half-maximum (FWHM) of PSS nanoparticles was observed to be approximately 30-40 nm. The super-resolution fluorescence imaging method can also be used to monitor the PEDOT:PSS film after acid treatment. It was observed that PSS chains were washed away when exposed to concentrated sulfuric acid, which explains why concentrated sulfuric acid treatment greatly improves the conductivity of the PEDOT:PSS film. Super-resolution imaging is promising as an effective method for characterizing PEDOT:PSS films.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453651","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 resistance of superconducting TiN thin films against environmental attacks. 超导 TiN 薄膜具有很强的抗环境侵蚀能力。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-15 DOI: 10.1039/d4mh00959b

Zhangyuan Guo, Min Ge, You-Qi Zhou, Jiachang Bi, Qinghua Zhang, Jiahui Zhang, Jin-Tao Ye, Rongjing Zhai, Fangfang Ge, Yuan Huang, Ruyi Zhang, Xiong Yao, Liang-Feng Huang, Yanwei Cao

{"title":"High resistance of superconducting TiN thin films against environmental attacks.","authors":"Zhangyuan Guo, Min Ge, You-Qi Zhou, Jiachang Bi, Qinghua Zhang, Jiahui Zhang, Jin-Tao Ye, Rongjing Zhai, Fangfang Ge, Yuan Huang, Ruyi Zhang, Xiong Yao, Liang-Feng Huang, Yanwei Cao","doi":"10.1039/d4mh00959b","DOIUrl":"https://doi.org/10.1039/d4mh00959b","url":null,"abstract":"Superconductors, an essential class of functional materials, hold a vital position in both fundamental science and practical applications. However, most superconductors, including MgB2, Bi2Sr2CaCu2O8+δ, and FeSe, are highly sensitive to environmental attacks (such as from water and moist air), hindering their wide applications. More importantly, the surface physical and chemical processes of most superconductors in various environments remain poorly understood. Here, we comprehensively investigate the high resistance of superconducting titanium nitride (TiN) epitaxial films against acid and alkali attacks. Unexpectedly, despite immersion in acid and alkaline solutions for over 7 days, the crystal structure and superconducting properties of TiN films remain stable, as demonstrated by high-resolution X-ray diffraction, electrical transport, atomic force microscopy, and scanning electron microscopy. Furthermore, combining scanning transmission electron microscopy analysis with density functional theory calculations revealed the corrosion mechanisms: acid corrosions lead to the creation of numerous defects due to the substitution of Cl ions for N anions, whereas alkaline environments significantly reduce the film thickness through the stabilization of OH* adsorbates. Our results uncover the unexpected stability and durability of superconducting materials against environmental attacks, highlighting their potential for enhanced reliability and longevity in diverse applications.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453646","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

Correction: An amorphous Cr2Ge2Te6/polyimide double-layer foil with an extraordinarily outstanding strain sensing ability 更正：非晶态 Cr2Ge2Te6/聚酰亚胺双层箔具有超强的应变传感能力。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-14 DOI: 10.1039/D4MH90105C

Yinli Wang, Yi Shuang, Mihyeon Kim, Daisuke Ando, Fumio Narita and Yuji Sutou

引用次数: 0

Anomalous reverse mechanical polarization switching in negative piezoelectric CuInP₂S₆. 负压电 CuInP2S6 中的反向机械极化异常开关。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-14 DOI: 10.1039/d4mh00876f

Lei Wang, Dawei Zhang, Zheng-Dong Luo, Patrick D Taylor, Kevin Tran, Wenjie Ming, Jianbo Tang, Pankaj Sharma, Michelle J S Spencer, Jan Seidel

{"title":"Anomalous reverse mechanical polarization switching in negative piezoelectric CuInP2S6.","authors":"Lei Wang, Dawei Zhang, Zheng-Dong Luo, Patrick D Taylor, Kevin Tran, Wenjie Ming, Jianbo Tang, Pankaj Sharma, Michelle J S Spencer, Jan Seidel","doi":"10.1039/d4mh00876f","DOIUrl":"https://doi.org/10.1039/d4mh00876f","url":null,"abstract":"van der Waals ferroelectric CuInP2S6 (CIPS) has drawn significant attention not only because of its unique properties but also owing to its technological potential for nanoelectronics. Mechanical polarization switching provides a new approach to modulating polarization states through flexoelectricity. This approach is particularly favourable for CIPS to avoid surface damage under an electric field due to the coupling between polarization switching and ionic motion. Here, we report anomalous downward-to-upward polarization switching under tip force in CIPS nanoflakes, which is believed to stem from the competition between piezoelectric and flexoelectric fields induced by tip pressure, together with the unique quadruple-well state present in CIPS. This work provides novel insights into the polarization switching mechanism of CIPS, elucidating the interplay between competing piezoelectric and flexoelectric fields, and it may pave the way for the design of electromechanical devices based on flexoelectric engineering.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453636","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

Efficient photodegradation of carbamazepine by organocatalysts incorporating a third component with a more complementary absorption spectrum. 利用含有第三种成分的有机催化剂对卡马西平进行高效光降解，其吸收光谱更具互补性。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-11 DOI: 10.1039/d4mh01030b

Min Long, Ciyuan Huang, Xiao Huang, Linji Yang, Liangsheng Chen, Ke Sun, Caiyun Wang, Liying Zhang, Libin Zhang, Songlin Cai, Shangfei Yao, Hongxiang Zhu, Tao Yang, Bingsuo Zou, Tao Liu

{"title":"Efficient photodegradation of carbamazepine by organocatalysts incorporating a third component with a more complementary absorption spectrum.","authors":"Min Long, Ciyuan Huang, Xiao Huang, Linji Yang, Liangsheng Chen, Ke Sun, Caiyun Wang, Liying Zhang, Libin Zhang, Songlin Cai, Shangfei Yao, Hongxiang Zhu, Tao Yang, Bingsuo Zou, Tao Liu","doi":"10.1039/d4mh01030b","DOIUrl":"10.1039/d4mh01030b","url":null,"abstract":"Carbamazepine, recognized as one of the most prevalent pharmaceuticals, has attracted considerable attention due to its potential impact on ecosystems and human health. In response, this work synthesized and characterized a novel environmentally friendly and cost-effective organic semiconductor photocatalyst PM6:Y6:ITCPTC loaded with coconut shell charcoal, and then investigated its performance for photocatalytic removal. Remarkably, carbamazepine demonstrated a photodegradation efficiency exceeding 99% within a mere 20 minutes of exposure to one sunlight intensity, and also showed good effectiveness under a low light intensity of 50 W. The catalyst exhibited exceptional reusability and stability, maintaining degradation efficiency between 95-99% over 25 cycles. The high photocatalytic activity of PM6:Y6:ITCPTC is primarily attributed to the incorporation of the third component (named ITCPTC), which enhances exciton dissociation and carrier transfer, generating superoxide radicals, electrons, and holes. Furthermore, the plausible degradation pathway of carbamazepine was proposed based on the measured intermediates and density functional theory calculations.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142398748","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

Upconversion circularly polarized luminescence of cholesteric liquid crystal polymer networks with NaYF₄:Yb,Tm UCNPs. 含有 NaYF4:Yb,Tm UCNPs 的胆甾液晶聚合物网络的上转换圆偏振发光。

IF 12.2 2区材料科学

Materials Horizons Pub Date : 2024-10-10 DOI: 10.1039/d4mh00966e

Liting Xu, Yi Li, Wei Liu, Yonggang Yang

{"title":"Upconversion circularly polarized luminescence of cholesteric liquid crystal polymer networks with NaYF4:Yb,Tm UCNPs.","authors":"Liting Xu, Yi Li, Wei Liu, Yonggang Yang","doi":"10.1039/d4mh00966e","DOIUrl":"https://doi.org/10.1039/d4mh00966e","url":null,"abstract":"Upconversion circularly polarized luminescence (UC-CPL) exhibits promising potential for application for anti-counterfeiting and displays. Upconversion nanoparticles (UCNPs), NaYF4:Yb,Tm, with uniform morphology and high crystallinity, were prepared via a simple solvothermal method. These UCNPs were embedded into cholesteric liquid crystal polymer network (CLCN) films. The UC-CPL performance of these films was investigated using left- and right-handed circular polarizers. After calibration, the |gcallum| values (up to 0.33) were obtained for the free-standing CLCN-UCNPs films, while a |gcallum| value of 0.43 was achieved for the CLCN-UCNPs-coated PET film. Moreover, a combined system comprising a PMMA-UCNPs layer and a CLCN layer yielded an ultra-large |gcallum| value of up to 1.73. Flexible and colourful patterned CLCN films were fabricated using photomasks, offering potential applications in anti-counterfeiting. This study not only successfully prepared UC-CPL-active materials based on CLCNs and UCNPs, but also demonstrated the chiral filtering effect of CLCN films in upconversion luminescent materials.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142386459","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