Progress in Natural Science: Materials International最新文献

High-resolution transmission electron microscopy imaging of graphene-encapsulated CH3NH3PbI3 solution 石墨烯包封CH3NH3PbI3溶液的高分辨率透射电镜成像

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.02.012

Fuchao Yan , Wenhao Lu , Chuang Xu , Feifan Liu , Shaoqing Chen , Fan Xia , Ruiwen Ping , Shuliang Lv , Jingyu Sun , Jincan Zhang

{"title":"High-resolution transmission electron microscopy imaging of graphene-encapsulated CH3NH3PbI3 solution","authors":"Fuchao Yan , Wenhao Lu , Chuang Xu , Feifan Liu , Shaoqing Chen , Fan Xia , Ruiwen Ping , Shuliang Lv , Jingyu Sun , Jincan Zhang","doi":"10.1016/j.pnsc.2025.02.012","DOIUrl":"10.1016/j.pnsc.2025.02.012","url":null,"abstract":"<div><div>Organic−inorganic hybrid perovskites (OIHPs) have emerged as potential candidate materials for photovoltaic devices because of their superior optoelectronic properties. Nonetheless, real-time characterization of their formation and decomposition process inside the liquid phase with atomic-level resolution, which is vital to understand the synthesis mechanism and to further improve the device performance, has not been reported yet. <em>In-situ</em> liquid-phase transmission electron microscope (TEM) enables high-resolution real-time characterization. However, the imaging resolution is limited to a few nanometers by the relatively thick encapsulation layer (e.g., Si<sub>3</sub>N<sub>x</sub>) and its higher atomic number element. Herein, using high-intactness and high-cleanness suspended graphene membrane to seal liquid, organic solution of methylammonium lead iodide (MAPbI<sub>3</sub>), the most representative OIHPs, has been successful encapsulated. The as-prepared graphene liquid cells exhibit high density and wide size distribution range (50–600 nm) via precise composition regulation of the solution to encapsulate both nanocrystals and thin films in the liquid. TEM imaging is conducted to visualize the synthesis and decomposition processes of organic-inorganic hybrid perovskites with high spatial (sub-nm) and temporal (sub-second) resolution, revealing the effect of nanocrystal size, bubbles and adjacent nanocrystals. This study not only provides a new routine to real-time observe OIHPs synthesis and decomposition process in liquid state, but also deepens the understanding of liquid reaction at atomic scale.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 492-498"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366215","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

Structural engineering of clay minerals for heavy metal remediation: Molecular mechanisms, performance enhancement, and sustainable applications 黏土矿物修复重金属的结构工程：分子机制、性能增强和可持续应用

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.008

Xiaotong Yang, Yi Zhou, Yinhang Fan, Guocheng Lv, Libing Liao

{"title":"Structural engineering of clay minerals for heavy metal remediation: Molecular mechanisms, performance enhancement, and sustainable applications","authors":"Xiaotong Yang, Yi Zhou, Yinhang Fan, Guocheng Lv, Libing Liao","doi":"10.1016/j.pnsc.2025.03.008","DOIUrl":"10.1016/j.pnsc.2025.03.008","url":null,"abstract":"<div><div>The acceleration of global urbanization and industrial expansion has precipitated severe contamination of aquatic systems through toxic heavy metal discharges (Cr, As, Cd, Hg, Cu, Pb), creating substantial threats to ecological integrity and public health. Amidst diverse remediation strategies, adsorption emerges as a particularly promising solution due to its operational efficiency and cost-effectiveness, with adsorbent development constituting the primary technological hurdle. Naturally occurring clay minerals (kaolinite, montmorillonite, and palygorskite, etc.) have emerged as superior candidates for water purification applications, leveraging their inherent advantages of geological abundance, structural diversity, modifiable surface chemistry, and exceptional adsorption capabilities. This review systematically synthesizes recent years of scientific advancements in heavy metal sequestration using clay-based materials, with focused analysis on crystallographic properties, molecular-level adsorption mechanisms (electrostatic interaction, ion exchange, surface complexation, hydrogen bond), and critical operational parameters (pH, temperature, ionic strength). A dedicated evaluation of clay composites demonstrates remarkable performance enhancements through chemical modification (surfactant intercalation, functional group grafting) and nanoscale engineering, achieving significant capacity improvements compared to pristine counterparts. By establishing structure-function relationships and optimizing modification protocols, this analysis provides crucial guidance for developing next-generation clay adsorbents, charting a sustainable pathway for addressing anthropogenic pollution challenges through geologically-sourced remediation technologies.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 469-484"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366213","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

The impact of Cu content on crystallization kinetics and soft magnetic properties for ductility FePCCu amorphous alloy Cu含量对延展性FePCCu非晶合金结晶动力学及软磁性能的影响

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.005

Xiangxiang Jiang , Cong Liu , Hongzhi Luo , Jing Ding , Mingqing Zuo , Chen Yang , Xuefang Dai , Shengli Zhu , Guodong Liu

{"title":"The impact of Cu content on crystallization kinetics and soft magnetic properties for ductility FePCCu amorphous alloy","authors":"Xiangxiang Jiang , Cong Liu , Hongzhi Luo , Jing Ding , Mingqing Zuo , Chen Yang , Xuefang Dai , Shengli Zhu , Guodong Liu","doi":"10.1016/j.pnsc.2025.03.005","DOIUrl":"10.1016/j.pnsc.2025.03.005","url":null,"abstract":"<div><div>Effects of trace addition of Cu in ductility Fe<sub>83−x</sub>P<sub>11</sub>C<sub>6</sub>Cu<sub>x</sub> (x = 0.7–1 at. %) amorphous alloys on the crystallization kinetics, soft magnetic properties and hardness were investigated. With Cu content increasing, the Curie temperature (<em>T</em><sub><em>c</em></sub>) and initial crystallization onset temperature (<em>T</em><sub><em>x1</em></sub>) increase at first and then drop. The nucleation process becomes hard with the increasing of Cu content, and it is more difficult than growth process. The Fe<sub>82.3</sub>P<sub>11</sub>C<sub>6</sub>Cu<sub>0.7</sub> amorphous ribbon demonstrates high saturation magnetization (<em>B</em><sub><em>s</em></sub>) of 1.63 T, low coercivity (<em>H</em><sub><em>c</em></sub>) of 5.2 A/m, and high initial permeability (<em>μ</em><sub><em>i</em></sub>) of 15,000, alongside Vickers hardness (<em>H</em><sub><em>v</em></sub>) exceeding 760 and excellent bending ductility. Annealing-induced [amorphous + α-Fe] phase in Fe<sub>82.3</sub>P<sub>11</sub>C<sub>6</sub>Cu<sub>0.7</sub> has good soft magnetic properties, with <em>B</em><sub><em>s</em></sub> of 1.66 T, <em>H</em><sub><em>c</em></sub> of 9.7 A/m, <em>μ</em><sub><em>i</em></sub> of 16,000, and <em>H</em><sub><em>v</em></sub> over 1300. Notably, only nanocrystalline α-Fe phase precipitation is observed in its ribbon after annealing at <em>T</em><sub>x2</sub>-50 K (<em>T</em><sub>x2</sub>, second crystallization onset temperature). At the same time the sample has good flexibility. Fe-based amorphous/nanocrystalline alloys can be as promising option for commercial applications because of their remarkable soft magnetic properties, cost-effectiveness, and exceptional bending ductility.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 560-567"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366306","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

A new multi-stage creep aging process for improving creep age formability and maintaining performance of Al-Li alloy 提出了一种提高铝锂合金蠕变时效成形性能和保持合金性能的多级蠕变时效新工艺

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.004

Fei Chen , Yanmei Yu , Yanan Jiang , Quanqing Zeng , Lihua Zhan

{"title":"A new multi-stage creep aging process for improving creep age formability and maintaining performance of Al-Li alloy","authors":"Fei Chen , Yanmei Yu , Yanan Jiang , Quanqing Zeng , Lihua Zhan","doi":"10.1016/j.pnsc.2025.03.004","DOIUrl":"10.1016/j.pnsc.2025.03.004","url":null,"abstract":"<div><div>In response to the weak creep age formability of Al-Li alloy, the traditional single-stage creep ageing process cannot guarantee a balance between formability and performance. This work proposes a novel multi-stage creep aging process (MSCA), which obtains a better microstructure firstly at low temperature, then increases the temperature to obtain better formability, and finally compensates for the loss of strength caused by high temperature through the secondary precipitation strengthening at low temperature, achieving a good match between formability and performance. The MSCA can effectively increase creep strain without reducing strength and plasticity. By observing the internal microstructure of the material through various microscopic characterization methods, it was found that the first stage of MSCA needs to obtain a large amount of diffuse precipitates, so that it can suppress coarsening while obtaining a large creep strain in the second stage (high temperature) of MSCA; The selection of the second stage temperature should take into account the degree of dislocation recovery and precipitate re-solution, so that the strength of the third stage of MSCA can be improved by secondary precipitation strengthening; The third stage temperature should be lowered to avoid coarsening of precipitates and to ensure that the MSCA is still comparable to single-stage creep aging with a higher creep strain. This work has important implications for the refinement and development of creep aging.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 547-559"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366305","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 deep learning for accurate and automated interpretation of molecular IR and Raman spectra 利用深度学习对分子红外和拉曼光谱进行准确和自动的解释

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.02.014

Tianqing Hu , Yujin Zhang , Wei Hu

{"title":"Leveraging deep learning for accurate and automated interpretation of molecular IR and Raman spectra","authors":"Tianqing Hu , Yujin Zhang , Wei Hu","doi":"10.1016/j.pnsc.2025.02.014","DOIUrl":"10.1016/j.pnsc.2025.02.014","url":null,"abstract":"<div><div>Evaluating molecular and material properties is a fundamental aspect of science with significant practical applications. While these properties can be inferred from spectra, traditional methods require meticulous calibration and rely heavily on the expertise and intuition of researchers. In this study, we evaluated four machine learning models — convolutional neural networks (CNN), multilayer perceptrons (MLP), Transformers, and gated recurrent units (GRU) — to predict key molecular properties, including the number of atoms, HOMO-LUMO gap, dipole moment, aromaticity, and first excitation energy. Using the QM9S dataset that includes IR and Raman spectra of 127468 molecules as a benchmark, we found that combining IR and Raman spectra consistently outperformed individual spectra in prediction accuracy. By incorporating data augmentation and model fusion, we further improved prediction accuracy by 2 %–7 % for all molecular properties. Finally, we proposed the best single or fused deep learning model to predict the number of atoms, HOMO-LUMO gap, dipole moment, aromaticity and first excitation energy with the accuracy of 99 %, 96 %, 83 %, 99 % and 97 %, respectively. The present work offers an automated and precise interpretation of IR and Raman spectra, enabling accurate predictions of several critical molecular properties.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 505-512"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366217","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

An oxide precursor route for manufacturing nickel-rich NCM cathode materials through the flame synthesis approach 一种火焰合成法制备富镍NCM正极材料的氧化物前驱体路线

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.04.001

Junlei Wang, Jinyu Li, Shilong Li, Wen Du, Yunfei Xu, Kun Wang

{"title":"An oxide precursor route for manufacturing nickel-rich NCM cathode materials through the flame synthesis approach","authors":"Junlei Wang, Jinyu Li, Shilong Li, Wen Du, Yunfei Xu, Kun Wang","doi":"10.1016/j.pnsc.2025.04.001","DOIUrl":"10.1016/j.pnsc.2025.04.001","url":null,"abstract":"<div><div>During the current co-precipitation wet chemistry methods, the Ni-Co-Mn hydroxide precursor is initially prepared, which undergo high-temperature decomposition in calcination process, forming the corresponding Ni-Co-Mn oxides to mix with lithium salts, eventually leading to the synthesis of cathode materials, LiNi<sub>x</sub>Co<sub>y</sub>Mn<sub>1-x-y</sub>O<sub>2</sub> (NCM). The above hydroxide precursor route for the preparation of NCM cathode materials usually result in multiple unit operations, substantial liquid wastes, strong base contamination, and high resources consumption. The present study aims at proposing an alternative oxide precursor route for manufacturing NCM cathode materials through the flame synthesis (FS) approach, to alleviate the above issues of the usual wet chemistry methods. Specifically, based on a co-flow diffusion flame burner, the Ni-Co-Mn oxides was prepared by FS, and the as-synthesized oxide precursor, without any treatment, was then mixed with lithium carbonate (Li<sub>2</sub>CO<sub>3</sub>) to undergo calcination, leading to the successful preparation of the nickel-rich NCM811 cathode materials. Results show that the oxide precursor of NCM811, Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>1.1</sub>, is composed of a primary NiO rock salt phase and secondary spinel-structured phases similar to NiCo<sub>2</sub>O<sub>4</sub> and NiMn<sub>2</sub>O<sub>4</sub>, with rough surface, spherical structure, particle size of about 1.2 μm, and uniform distribution of the elements. The initial discharge specific capacity of the resulting NCM811 cathode materials achieve as high as 194.7 mAh/g, with capacity retention being 87.1 % after 100 cycles, which is superior to that of commercial samples or prepared by other methods as reported in literatures. Overall, the Ni-Co-Mn oxides precursor route through FS is compelling to the preparation of nickel-rich NCM cathode materials.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 485-491"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366214","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

Addressing peri-implantitis and improving osteointegration: A study on the bioactive properties of a copper ion-releasing composite for implant materials 解决种植体周围炎和改善骨整合：一种铜离子释放复合种植材料的生物活性特性研究

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.02.015

Jingjing Su , Wei Zhao , Yifeng Xing , Yanjun Lin , Qingshi Wu , Xiaojie Xing , Yingzhen Lai , Zhiqiang Xu , Qianju Wu , Jiang Chen

{"title":"Addressing peri-implantitis and improving osteointegration: A study on the bioactive properties of a copper ion-releasing composite for implant materials","authors":"Jingjing Su , Wei Zhao , Yifeng Xing , Yanjun Lin , Qingshi Wu , Xiaojie Xing , Yingzhen Lai , Zhiqiang Xu , Qianju Wu , Jiang Chen","doi":"10.1016/j.pnsc.2025.02.015","DOIUrl":"10.1016/j.pnsc.2025.02.015","url":null,"abstract":"<div><div>Carbon fiber-reinforced polyether ether ketone (CFR-PEEK) has recently emerged as an innovative material for bone and tooth implants, although its bioinertness has limited its widespread clinical application. In this study, we fabricated a multifunctional composite (CP-S5-PDA-Cu) by incorporating copper ions into CFR-PEEK and leveraging the porous structure of the sulfonated surface and the ion-chelating effect of polydopamine (PDA), known for its antibacterial, osteogenic, and angiogenic properties. The surface characteristics of the implant were comprehensively investigated, as well as its <em>in vitro</em> and <em>in vivo</em> biological properties. Our results demonstrated that the coating on the material enhanced its hydrophilicity and allowed the sustained release of copper. This promoted the proliferation of rBMSCs and HUVECs on the sample's surface and facilitated their differentiation into osteogenic and angiogenic lineages. Furthermore, the composite material displayed potent bactericidal activity against <em>P. gingivalis</em>, a bacterium associated with periodontal disease. <em>In vivo</em> studies validated the material's excellent osteointegration effects. These findings provide an experimental basis for addressing peri-implantitis and related conditions and offer new possibilities for selecting implant materials.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 513-525"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366218","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

Synthesis and modification of g-C3N4 semiconductor catalysts for photocatalytic hydrogen evolution: A review 光催化析氢用g-C3N4半导体催化剂的合成与改性研究进展

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.007

Hongmei Chen , Zheng Fan , Zi-Chen Zhang , Junwen Guo , Chong-Chen Wang

{"title":"Synthesis and modification of g-C3N4 semiconductor catalysts for photocatalytic hydrogen evolution: A review","authors":"Hongmei Chen , Zheng Fan , Zi-Chen Zhang , Junwen Guo , Chong-Chen Wang","doi":"10.1016/j.pnsc.2025.03.007","DOIUrl":"10.1016/j.pnsc.2025.03.007","url":null,"abstract":"<div><div>Photocatalytic water decomposition with the participation of sunlight and semiconductor catalysts to obtain the production of hydrogen is considered to be the most promising strategy to supply green and clean energy. The photocatalysts with high activity as well as high stability are particularly important and urgent for efficient hydrogen production reaction. As a two-dimensional semiconductor material, graphite-like carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) is diffusely used for photocatalyzing water decomposition reactions because of its excellent stability, appropriate band gap as well as suitable energy band structure. Within this paper, the preparation as well as strategies for modifying g-C<sub>3</sub>N<sub>4</sub> photocatalysts and the application in the field of photocatalytic water decomposition are introduced detailedly from regulatory strategies such as structural design, element doping, co-catalyst modification and heterogeneous structure construction. Simultaneously, the mechanism of the modified g-C<sub>3</sub>N<sub>4</sub> semiconductor materials using different strategies in improving photocatalytic hydrogen production performance is deeply analyzed. Finally, the potential and challenges of g-C<sub>3</sub>N<sub>4</sub> semiconductor catalysts in the application of photocatalytic hydrogen production reaction are prospected.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 449-468"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366212","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

Hybrid CsPbBr3@CP-1 composites with enhanced stability and dual-emitting for white LED and photoelectrical applications 混合CsPbBr3@CP-1复合材料具有增强的稳定性和双发射白光LED和光电应用

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.014

Hao Zhou , Qingxin Fan , Shaowen Zhu , Minjie Zhou , Jingyi Liu , Zhiqiang Li , Bing Jin , Xiandong Zhang , Min Liu , Yilin Wang

{"title":"Hybrid CsPbBr3@CP-1 composites with enhanced stability and dual-emitting for white LED and photoelectrical applications","authors":"Hao Zhou , Qingxin Fan , Shaowen Zhu , Minjie Zhou , Jingyi Liu , Zhiqiang Li , Bing Jin , Xiandong Zhang , Min Liu , Yilin Wang","doi":"10.1016/j.pnsc.2025.03.014","DOIUrl":"10.1016/j.pnsc.2025.03.014","url":null,"abstract":"<div><div>The halide perovskite CsPbBr<sub>3</sub> quantum dots (QDs) exhibit remarkable potential for diverse applications, attributed to their distinctive optical properties. However, their poor stability hinders practical implementation. In this study, we enhanced the stability of perovskite QDs by incorporating CsPbBr<sub>3</sub> QDs into a coordination polymer called CP-1. CP-1 features excellent photoluminescent properties thanks to its ligand trans,trans-9,10-bis(4-pyridylethenyl) anthracene (An2Py). The hybrid CsPbBr<sub>3</sub>@CP-1 composites possess dual emissions: a narrow peak from CsPbBr<sub>3</sub> QDs and a broad band from CP-1. Due to the enhanced stability of CsPbBr<sub>3</sub> QDs, a white light-emitting diode (LED) was fabricated using CsPbBr<sub>3</sub>@CP-1 composites. In addition, the hybrid composites shows promising photoelectrical characteristics. Therefore, this work presents a methodology enhancing the stability and optical characteristics of CsPbBr<sub>3</sub> QDs, thereby broadening the practical applications of optical QDs in white LEDs and optoelectronic devices.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 616-621"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366255","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

Intelligent screening model for uranium alloy corrosion substitute alloys based on machine learning 基于机器学习的铀合金腐蚀替代合金智能筛选模型

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.016

Wanying Zhang, Xiaoyuan Wang, Yibo Ai, Weidong Zhang

{"title":"Intelligent screening model for uranium alloy corrosion substitute alloys based on machine learning","authors":"Wanying Zhang, Xiaoyuan Wang, Yibo Ai, Weidong Zhang","doi":"10.1016/j.pnsc.2025.03.016","DOIUrl":"10.1016/j.pnsc.2025.03.016","url":null,"abstract":"<div><div>Uranium is a highly important metal material in the nuclear industry. However, uranium is highly susceptible to corrosion in environmental media such as oxygen, hydrogen, or humid air. The corrosion and corrosion protection of uranium materials have always been a focal point for nuclear material researchers. This study aims to investigate the oxidation kinetics of U-2.5NB alloy in order to explore a new type of surrogate alloy that can replace this uranium alloy in terms of oxidation properties. Firstly, the important features of uranium alloy oxidation reactions are determined, and image clustering and image similarity comparison are used to screen the available surrogate alloy database, resulting in the selection of nine alloys with similar properties. Subsequently, an LSTM neural network with PSO optimization is employed to generate surrogate alloys for U-2.5NB alloy by training the chemical element mass fractions of the surrogate alloys, for the evaluation of their oxidation properties. The final results show an 80 % similarity compared to the reference standard, indicating the feasibility of the method used.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 622-630"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366256","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