Next Materials最新文献_第5页

Sustainable reinforcement of aluminium 6063 with plantain peel ash: Microstructural, mechanical, and corrosion performance 车前草皮灰可持续增强铝6063：微观结构，机械和腐蚀性能

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100986

Ugbede A. Williams , Ojo S.I. Fayomi , Jeremiah O. Ojediran

{"title":"Sustainable reinforcement of aluminium 6063 with plantain peel ash: Microstructural, mechanical, and corrosion performance","authors":"Ugbede A. Williams , Ojo S.I. Fayomi , Jeremiah O. Ojediran","doi":"10.1016/j.nxmate.2025.100986","DOIUrl":"10.1016/j.nxmate.2025.100986","url":null,"abstract":"<div><div>This study demonstrates that plantain peel ash (PPA) is a highly effective, low-cost reinforcement for aluminium 6063, delivering significant improvements across microstructural, mechanical, and corrosion performance metrics. The samples were fabricated via a two-step stir-casting process at 750 °C with 300 rpm stirring, followed by gravity casting. SEM and EDS analyses showed that PPA particles uniformly fill voids and refine the grain structure, while XRD confirmed the emergence of Al(MgO), intermetallic phases that bolster hardness and wear resistance. Hardness increased steadily with PPA content, reaching 38.2 HRB at 25 wt%, and wear rates fell by 66 % compared to the unreinforced alloy. Electrochemical testing across 30–60 °C revealed that PPA shifts corrosion potentials to more noble values and lowers corrosion current densities, indicating stronger surface passivation. Adsorption isotherm modeling supported a monolayer physical adsorption mechanism (ΔG<sub>ads</sub> between –21 and –26 kJ mol<sup>-</sup>¹) that is most effective at moderate temperatures. Post-corrosion optical microscopy confirmed that PPA dramatically reduces pit formation, with the 25 wt% composite displaying near-intact surfaces after exposure. Response surface methodology pinpointed an optimal formulation (24.992 wt% PPA at 30.012 °C) yielding a predicted corrosion rate of 0.47 mm yr<sup>-</sup>¹ .</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"9 ","pages":"Article 100986"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative performance analysis of different gate structure engineering on double gate tunnel FET 双栅隧道场效应管不同栅结构工程性能对比分析

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100966

Sudha Subhalaxmi Muduli , Ananya Dastidar , Aruna Tripathy , Sukanta Kumar Swain

引用次数: 0

Highly efficient p–n Cu2O homojunction photocathodes for unassisted solar water splitting 用于无辅助太阳能水分解的高效p-n - Cu2O同结光电阴极

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100984

Hang Yin , Shouren Zhang , Fang Guo , Ruibin Jiang

引用次数: 0

Harnessing Nephelium lappaceum leaf extract for the green fabrication of FeMnO3 nanoparticles as a catalyst in the Biginelli reaction 利用枸杞子叶提取物作为Biginelli反应的催化剂，绿色制备FeMnO3纳米颗粒

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100958

Dewangga Oky Bagus Apriandanu , Ahmad Farhan , Hilna Diana Sahaya , Bayu Ardiansah , Dicky Annas , Nur Rohman , Noordini M. Salleh , Ridla Bakri

{"title":"Harnessing Nephelium lappaceum leaf extract for the green fabrication of FeMnO3 nanoparticles as a catalyst in the Biginelli reaction","authors":"Dewangga Oky Bagus Apriandanu , Ahmad Farhan , Hilna Diana Sahaya , Bayu Ardiansah , Dicky Annas , Nur Rohman , Noordini M. Salleh , Ridla Bakri","doi":"10.1016/j.nxmate.2025.100958","DOIUrl":"10.1016/j.nxmate.2025.100958","url":null,"abstract":"<div><div>The transition to green chemistry has prompted the development of eco-friendly methods for synthesizing functional nanomaterials. Herein, FeMnO₃ nanoparticles were synthesized using <em>Nephelium lappaceum</em> (rambutan) leaf extract as a natural hydrolyzing and stabilizing agent. Bioactive compounds such as flavonoids and saponins facilitated nanoparticle formation without toxic reagents. The material was characterized by FTIR, UV-Vis DRS, XRD, XPS, FE-SEM, and TEM. The FeMnO₃ nanoparticles were then employed as a heterogeneous catalyst in the Biginelli reaction to produce dihydropyrimidinones (DHPMs). Optimization of reaction parameters (5 mol% catalyst, methanol, 50 °C, 24 h) afforded up to 65 % yield, and the structure of the model product was confirmed by ¹H and ¹³C NMR. The catalyst exhibited good reusability over four cycles without significant loss of activity. This study demonstrates the potential of plant-mediated synthesis for generating sustainable nanocatalysts and advancing green multicomponent reactions.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"9 ","pages":"Article 100958"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable wastewater treatment: Mechanistic, environmental, and economic insights into biochar for synthetic dye removal 可持续废水处理：生物炭去除合成染料的机理、环境和经济见解

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100974

J.I. Mnyango , B. Nyoni , C. Phiri , B.G. Fouda-Mbanga , S.O. Amusat , A. Maringa , B. Yalala-Ndlovu , B. Hlabano-Moyo , Z. Tywabi-Ngeva , S.P. Hlangothi

{"title":"Sustainable wastewater treatment: Mechanistic, environmental, and economic insights into biochar for synthetic dye removal","authors":"J.I. Mnyango , B. Nyoni , C. Phiri , B.G. Fouda-Mbanga , S.O. Amusat , A. Maringa , B. Yalala-Ndlovu , B. Hlabano-Moyo , Z. Tywabi-Ngeva , S.P. Hlangothi","doi":"10.1016/j.nxmate.2025.100974","DOIUrl":"10.1016/j.nxmate.2025.100974","url":null,"abstract":"<div><div>The contamination of aquatic environments by synthetic dyes poses significant environmental and health risks due to their structural complexity, toxicity, and resistance to biodegradation. Traditional treatment materials such as activated carbon, ion-exchange resins, and metal oxides are often limited by high cost, energy requirements, and post-use challenges. Biochar has emerged as a sustainable alternative, offering favourable physicochemical properties and characteristics, including large surface area, porosity, and functional groups, for effective dye adsorption. This review critically examines the production routes of biochar from diverse feedstocks, adsorption mechanisms involved in dye removal, and the influence of operational parameters such as pH, initial dye concentration, and modification techniques. Furthermore, we highlight recent modeling strategies, including machine learning approaches, for predicting dye adsorption performance. The potential for functionalization and activation of biochar to enhance dye removal efficiency is also explored. Beyond removal efficiency, this review evaluates the environmental implications and circular applications of dye-laden biochar, focusing on its stability, reusability, and integration into carbon management approaches. A bibliometric analysis is included to identify active research hubs, funding trends, and underexplored areas, providing a strategic perspective on the global development of this field. Overall, the review aims to support researchers, practitioners, and policymakers in advancing the design and application of biochar for cost-effective and environmentally sound treatment of dye-contaminated water.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"9 ","pages":"Article 100974"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and simulation of Cs2SnI6 based perovskite solar cell 基于Cs2SnI6的钙钛矿太阳能电池的设计与仿真

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100980

Md. Arif Uddin, Sohanur Rahman, Tanha Zaman

{"title":"Design and simulation of Cs2SnI6 based perovskite solar cell","authors":"Md. Arif Uddin, Sohanur Rahman, Tanha Zaman","doi":"10.1016/j.nxmate.2025.100980","DOIUrl":"10.1016/j.nxmate.2025.100980","url":null,"abstract":"<div><div>This study presents a computational investigation of a lead-free, stable, non-toxic and completely inorganic double perovskite solar cell based on Cs₂SnI₆, aimed at enhancing device performance through systematic simulation. Our study focuses on a comparative screening of multiple transport layers combinations and systematically optimizes interfacial and physical parameters specific to Cs₂SnI₆ solar cells. To identify the best suitable electron transport layer (ETL) and hole transport layer (HTL) seven different ETLs (TiO<sub>2</sub>, WS<sub>2</sub>, IGZO, WO<sub>3</sub>, PCBM, ZnO, ZnSe) and six different HTLs (Cu<sub>2</sub>O, CuI, p-MoO<sub>3</sub>, MoS<sub>2</sub>, CuSCN, SrCu<sub>2</sub>O) have been tested. Based on simulated photovoltaic performance, WS<sub>2</sub> and SrCu<sub>2</sub>O are selected as the best compatible ETL and HTL, respectively. The study further explores the influence of thickness, bandgap, defect density, interface defect density, donor and acceptor density and operating temperature on device behavior. The effect of various back contact metals was also assessed. Finally, an optimized n-i-p structured device, FTO/WS<sub>2</sub>/Cs<sub>2</sub>SnI<sub>6</sub>/SrCu<sub>2</sub>O/Ni achieved a notable open circuit voltage (V<sub>oc</sub>) of 1.06 V, short circuit current (J<sub>sc</sub>) of 30.82 mA/cm<sup>2</sup>, fill factor (FF) of 87.11 % and a high-power conversion efficiency (PCE) of 28.43 %. This work contributes to the advancement of environmentally friendly perovskite solar cells and provides valuable design insights for high-performance Cs-based photovoltaic devices. The investigation was carried out by employing 1-Dimensional Solar Cell Capacitance (SCAPS-1D) software.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"9 ","pages":"Article 100980"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel higher-order trigonometric shear deformation theory for static analysis of porous functionally graded skew plates 基于高阶三角剪切变形理论的多孔功能梯度斜板静力分析

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100926

Youssef Bouchaouata, Saad Hassouna, Abdelaziz Timesli

{"title":"A novel higher-order trigonometric shear deformation theory for static analysis of porous functionally graded skew plates","authors":"Youssef Bouchaouata, Saad Hassouna, Abdelaziz Timesli","doi":"10.1016/j.nxmate.2025.100926","DOIUrl":"10.1016/j.nxmate.2025.100926","url":null,"abstract":"<div><div>This study investigates the bending behavior of skew functionally graded material plates to evaluate the influence of skew angle on structural rigidity. This work distinguishes itself by analyzing how varying skew angles influence the bending rigidity of functionally graded material plates. The behavior of skew plates, especially when made of functionally graded materials with continuously varying properties through the thickness, is complex and requires dedicated analysis. In this context, an analytical method is developed to establish a model based on the higher-order shear deformation theory in an oblique coordinate system. Power-law and exponential functions are used to define the material properties of the functionally graded plate, which vary gradually across its thickness. The principle of virtual work is employed to derive the governing equations, which are subsequently solved using the Navier solution method. The proposed model is validated by comparing its results with those available in the literature, confirming the accuracy of the findings. The effect of the skew angle shows a significant improvement in the plate’s rigidity.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"9 ","pages":"Article 100926"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From green cathode material to sustainable energy technology: A holistic approach 从绿色正极材料到可持续能源技术：一个整体的方法

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100970

Triantafillos Tsoukas , Nikos Kavousanos , Christina Floraki , Maria Apostolopoulou , Ricardo Santamaria Ramirez , Dimitra Vernardou

{"title":"From green cathode material to sustainable energy technology: A holistic approach","authors":"Triantafillos Tsoukas , Nikos Kavousanos , Christina Floraki , Maria Apostolopoulou , Ricardo Santamaria Ramirez , Dimitra Vernardou","doi":"10.1016/j.nxmate.2025.100970","DOIUrl":"10.1016/j.nxmate.2025.100970","url":null,"abstract":"<div><div>This study presents the development and preliminary evaluation of aqueous lithium-ion battery (ALIB) systems, employing LiFePO₄ (LFP) cathodes paired with Li₄Ti₅O₁₂ (LTO) anodes. ALIBs represent a promising alternative to traditional lithium-ion batteries due to improved safety, enhanced ionic conductivity, reduced environmental impact, and lower production costs. To support sustainability, nickel-plated aluminum current collectors were employed to improve conductivity and electrode adhesion. LiFePO₄ cathodes synthesized under optimized conditions exhibited crystallinity and uniform morphology, as verified by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Spray deposition was found to be an effective method for preparing stable cathode layers with potential for scalability. Electrochemical evaluations demonstrated that the pairing of an LFP cathode with an LTO anode in an aqueous system, reported for the first time, exhibited stable cycling behavior and coulombic efficiency. These findings mark an important step forward in advancing environmentally sustainable and scalable aqueous lithium-ion energy storage solutions.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"9 ","pages":"Article 100970"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Natural flavonoids from tea (Camellia sinesis) leaves for optical pH sensing 从茶（Camellia sinesis）叶片中提取的用于光学pH传感的天然类黄酮

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100977

Roshmi Pangyok , Pankaj Dutta , Siddhartha P. Bharadwaj , Chayanika Chetia , Mondeep Gohain , Purabi Gogoi

{"title":"Natural flavonoids from tea (Camellia sinesis) leaves for optical pH sensing","authors":"Roshmi Pangyok , Pankaj Dutta , Siddhartha P. Bharadwaj , Chayanika Chetia , Mondeep Gohain , Purabi Gogoi","doi":"10.1016/j.nxmate.2025.100977","DOIUrl":"10.1016/j.nxmate.2025.100977","url":null,"abstract":"<div><div>This study investigates the potential of a catechin-rich extract from tea (<em>Camellia sinensis</em>) leaves as a natural pH-sensitive optical sensing probe. Tea flavonoids were extracted using the hot water bath extraction method and systematically studied using scanning electron microscopy, Fourier-transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, liquid chromatography mass spectrometry, UV-Visible absorption and fluorescence spectroscopy to determine their contents and compositions. The absorption spectrum of the extract revealed a characteristic peak of catechin around 273 nm, while the fluorescence spectrum demonstrated three emission bands at 318 nm, 340 nm and 442 nm, corresponding to catechin and its polymerized forms. The observed catechin-rich tea leaves extract (CTE) was studied as a pH-sensing probe, and its sensing behaviour was examined using the UV-Visible absorbance and fluorescence emission intensity measurements. A significant change in the absorbance and fluorescence intensity was observed across a wide pH range from 1.66 to 11.80. These variations in the optical properties of catechin with pH are explained based on changes in the electronic configuration of catechin molecules resulting from protonation and deprotonation, as well as subsequent polymerization. The results showed a linear correlation between absorbance and fluorescence intensity of CTE with pH, highlighting its capability as a sensitive and eco-friendly pH indicator. The study demonstrates the potential of CTE for developing a sustainable and non-toxic solution-based optical pH sensing probe.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"9 ","pages":"Article 100977"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molten salt synthesis of rutile phase Ag/TiO2 nanowires for efficient photoreduction of Cr(VI) 熔盐法制备金红石相Ag/TiO2纳米线高效光还原Cr（VI）

Next Materials Pub Date : 2025-07-22 DOI: 10.1016/j.nxmate.2025.100978

Sarah Keiza Ismail , Munawar Khalil , Jeong-Myeong Ha , Rika Tri Yunarti

{"title":"Molten salt synthesis of rutile phase Ag/TiO2 nanowires for efficient photoreduction of Cr(VI)","authors":"Sarah Keiza Ismail , Munawar Khalil , Jeong-Myeong Ha , Rika Tri Yunarti","doi":"10.1016/j.nxmate.2025.100978","DOIUrl":"10.1016/j.nxmate.2025.100978","url":null,"abstract":"<div><div>The morphology of TiO<sub>2</sub> structures is a critical parameter in photocatalysis. Fabricating rutile phase TiO<sub>2</sub> in nanostructures forms is a promising method to increase the surface area of the catalyst, thereby accelerating photocatalytic rates. The Molten salt synthesis (MSS) method can be used to enhance the reaction rate of a crystalline solid over an extended period of time. Nonetheless, TiO<sub>2</sub> photocatalytic activity is limited to UV light exposure. Additionally, modification with Ag (silver) nanoparticle is a potential option for enhancing the photocatalytic activity. In this research, rutile phase TiO<sub>2</sub> with nanowires (NW) morphology was prepared by the molten-salt method with addition of Ag into the surface of TiO<sub>2</sub>. The Ag/TiO<sub>2</sub> NW was investigated for its photocatalytic performance to reduce hexavalent chromium (Cr(VI)) under visible-light irradiation. According to the result, Ag/TiO<sub>2</sub> NW achieved Cr(VI) photoreduction efficiency of 96.38 % after 150 min of irradiation time with a rate constant (k<sub>app</sub>) of 2.21 × 10<sup>−2</sup> min<sup>−1</sup>. The photodegradation of Cr(VI) followed pseudo-first-order kinetics. The electron-hole photogeneration was hindered with the existence of Ag nanoparticles, which contributed the increased photocatalytic activity from the rutile phase Ag/TiO<sub>2</sub> NW. This research provided an affordable and eco-friendly approach to produce nanomaterial to enhance photocatalytic activity for reduction of heavy metal.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"9 ","pages":"Article 100978"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0