Dairo Díaz-Tovar , Miguel Angel Centeno , Rafael Molina , Sonia Moreno
{"title":"Comprehensive understanding of the experimental factors determining the leaching of rice husk, and their effect on the thermochemical properties and characteristics of bio-silica","authors":"Dairo Díaz-Tovar , Miguel Angel Centeno , Rafael Molina , Sonia Moreno","doi":"10.1016/j.mtsust.2025.101122","DOIUrl":"10.1016/j.mtsust.2025.101122","url":null,"abstract":"<div><div>Leaching is a pretreatment that removes ionic species responsible for undesired reactions during biomass thermochemical transformation. Despite numerous reported leaching conditions, the impact of specific factors on ionic species removal remains insufficiently understood for widespread application. This study investigates the relationship between experimental factors and their optimal levels in aqueous medium, focusing on the effects of pH and acid type on rice husk and bio-silica's physicochemical and thermochemical properties. Optimal leaching conditions were identified as HCl at pH 1.5, 70 °C, 150 min, 1 g rice husk per 80 g H<sub>2</sub>O, and 30 rpm, yielding bio-silica with 99.45 ± 0.04 % purity, a surface area of 318 ± 10 m<sup>2</sup> g<sup>−1</sup>, and a pore volume of 0.46 ± 0.01 cm<sup>3</sup> g<sup>−1</sup>. Leaching enhances devolatilization during thermal decomposition but inhibits biochar oxidation. <sup>29</sup>Si NMR analysis revealed 16.4 % Q<sup>3</sup> and Q<sup>2</sup> silanol groups in the bio-silica, while SEM-EDX confirmed its high purity and porosity. These results offer key insights into improving leaching methods, helping to produce better-quality bio-silica, and supporting its use in eco-friendly industrial applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101122"},"PeriodicalIF":7.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H.R. Kotadia , N. Bareker , M.H. Khan , J.I. Ahuir-Torres , A. Das
{"title":"Aluminium recycling: A critical review of iron-bearing intermetallics in aluminium alloys","authors":"H.R. Kotadia , N. Bareker , M.H. Khan , J.I. Ahuir-Torres , A. Das","doi":"10.1016/j.mtsust.2025.101119","DOIUrl":"10.1016/j.mtsust.2025.101119","url":null,"abstract":"<div><div>This review provides a comprehensive analysis of the current understanding of Fe-bearing intermetallic compounds (IMCs) in cast and wrought aluminium (Al) alloys, also covering their significance in recycling and sustainable materials development. It explores the various types of Fe-bearing IMCs, their nucleation and growth mechanisms under diverse processing conditions, with a particular focus on chemical, physical, and thermal modification strategies aimed at mitigating their detrimental effects. The review further examines the impact of these IMCs on defect formation, mechanical performance, and corrosion resistance. While Al recycling offers substantial energy savings (up to 95 %), the accumulation of impurities, notably Fe. This work provides practical insights to guide materials scientists and engineers in optimising processing conditions for Al alloys with elevated Fe content or those derived from recycled scrap. Understanding the behaviour and control of Fe-bearing IMCs is essential for improving alloy performance and advancing the sustainable production of Al.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101119"},"PeriodicalIF":7.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143854979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marco Tosca , Mariia Protsak , Daniil Nikitin , Kateřina Škorvánková , Ronaldo Katuta , Pavel Pleskunov , Jan Hanuš , Daniel P. Molloy , Vasiliki Kanterelou , Veronika Červenková , Kateryna Biliak , Suren Ali-Ogly , Hynek Biederman , Gagik Nersisyan , Aaron McNamee , Jaakko Julin , Mikko Laitinen , Timo Sajavaara , Jakub Čížek , Oksana Melikhova , Andrei Choukourov
{"title":"Boron/hydrocarbon plasma polymer nanofuels for green energy generation via laser-driven proton-boron fusion","authors":"Marco Tosca , Mariia Protsak , Daniil Nikitin , Kateřina Škorvánková , Ronaldo Katuta , Pavel Pleskunov , Jan Hanuš , Daniel P. Molloy , Vasiliki Kanterelou , Veronika Červenková , Kateryna Biliak , Suren Ali-Ogly , Hynek Biederman , Gagik Nersisyan , Aaron McNamee , Jaakko Julin , Mikko Laitinen , Timo Sajavaara , Jakub Čížek , Oksana Melikhova , Andrei Choukourov","doi":"10.1016/j.mtsust.2025.101118","DOIUrl":"10.1016/j.mtsust.2025.101118","url":null,"abstract":"<div><div>Since 2005, materials rich with hydrogen and boron have been investigated as fuels for laser-driven proton-boron (pB) fusion, which is envisioned as a neutronless alternative to classical fusion for green energy generation. However, laser energy conversion is limited by large energy losses in bulk materials. Highly porous H/B-rich materials may mitigate this issue by enhancing laser absorption, but they are not readily available and are in high demand. Performing plasma polymerization of hexane in a gas aggregation cluster source, we prepared porous, dendrite-structured, micrometer-thick layers of plasma polymerized hydrocarbon nanoparticles of 65 and 560 nm size and optionally overcoated them with sputtered boron. Variable energy positron annihilation spectroscopy and N<sub>2</sub> sorption analysis found the multiscale porosity in the resultant nanomaterials, which is given by free volumes in the plasma polymer matrix (with characteristic diameter of 0.4–0.6 nm) and interparticle voids (10<sup>1</sup>–10<sup>2</sup> nm). NPs were found to retain half the amount of precursor hydrogen, as determined by ERDA. Using the TARANIS laser system (10 J per 800 fs pulse, 2 × 10<sup>19</sup> W/cm<sup>2</sup>), the pB fusion was successfully initiated to produce energetic α-particle fluxes of up to 5.6 x 10<sup>8</sup> α/sr/shot and 5 × 10<sup>7</sup> α/sr/J, which is competitive with the best results obtained so far. Our plasma-based method benefits from low amounts of source materials and almost no waste, offering a sustainable route toward hybrid H/B nanofuels with tunable porosity and strong potential for improving the energy conversion efficiency in laser-driven pB fusion.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101118"},"PeriodicalIF":7.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143854825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tunde L. Yusuf , Benjamin O. Orimolade , Daniel Masekela , Kayode A. Adegoke , Kwena D. Modibane , Seshibe S. Makgato
{"title":"BiOX(X=Cl, Br, I)-based S-scheme heterostructure photocatalysts for environmental remediation and energy conversion","authors":"Tunde L. Yusuf , Benjamin O. Orimolade , Daniel Masekela , Kayode A. Adegoke , Kwena D. Modibane , Seshibe S. Makgato","doi":"10.1016/j.mtsust.2025.101115","DOIUrl":"10.1016/j.mtsust.2025.101115","url":null,"abstract":"<div><div>Over the past decade, photocatalysis has gained recognition as a powerful tool for environmental remediation and sustainable energy production. Bismuth oxyhalides (BiOX, where X = Cl, Br, I) have attracted particular interest as efficient photocatalysts due to their excellent visible-light harvesting capabilities, straightforwardsynthesis, and high photostability. S-scheme heterojunctions have been developed to further improve their performance, which enhances electron-hole separation and significantly increases photocatalytic efficiency. This review examines recent advancements in BiOX-based S-scheme heterostructures, focusing on their diverse applications in pollutant degradation, CO<sub>2</sub> reduction, and H<sub>2</sub> production. An evaluation of the effectiveness, benefits, and limitations of various synthesis methods has been carried out in this article in addition to various strategies to improve the photocatalytic activity of BiOX. This study also compares the suitability of the synthesized methods for removing emerging organic and inorganic pollutants, including dyes, pharmaceuticals, and other contaminants of environmental concern. The performances of various BiOX catalysts for H<sub>2</sub> production and CO<sub>2</sub> conversion to chemicals and fuels were discussed to point out the strengths, weaknesses, and the need for high-performance BiOX catalysts for energy conversion. Also, an analysis of the specific mechanisms driving the photocatalytic activity and strategies to address current challenges have been presented in the article. Finally, this review identifies key knowledge gaps and presents recommendations for scaling BiOX photocatalysts toward large-scale and industrial applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101115"},"PeriodicalIF":7.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Houssam Eddine Abdellatif , Shan Ali Khan , Nahid Fatima , M.A. Aljohani , Adeel Arshad , Ahmed Belaadi , Abdullah Alhushaybari
{"title":"Enhancing latent heat storage: Impact of geometric modifications, S-shaped enclosure walls, and L-shaped fins","authors":"Houssam Eddine Abdellatif , Shan Ali Khan , Nahid Fatima , M.A. Aljohani , Adeel Arshad , Ahmed Belaadi , Abdullah Alhushaybari","doi":"10.1016/j.mtsust.2025.101114","DOIUrl":"10.1016/j.mtsust.2025.101114","url":null,"abstract":"<div><div>This study explores the thermal performance and phase change behavior of five thermal energy storage (TES) models with varied geometric and design parameters, aiming to enhance heat transfer and storage efficiency.The impact of an innovative S-shaped heat source wall configuration and L-shaped fins on phase change dynamics was examined through numerical simulations, presenting a novel approach to enhancing TES system designs. Temperature distribution, transient PCM temperature, velocity fields, and liquid fraction evolution were analyzed to evaluate melting time, energy storage density (<em>SE</em><sub><em>m</em></sub>), mean power (<em>P</em><sub><em>m</em></sub>), and total heat storage capacity. The findings indicate that geometric enhancements and fin configurations significantly influence phase change performance. Model 01 exhibited the longest melting time of 11,040 s, whereas Model 05, with enhanced thinner (0.3 mm) and longer (112.3 mm) fins, achieved the shortest melting time of 2,720 s, reducing melting time by 75.36 %. Model 05 also demonstrated the highest <em>SE</em><sub><em>m</em></sub>of 274.12 kJ/kg and <em>Pm</em> of 67.72 W, highlighting its superior thermal storage efficiency. These results emphasize the crucial role of fin geometry and enclosure profiles in improving TES system performance.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101114"},"PeriodicalIF":7.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unlocking the potential of lignin-based polyhydroxyurethanes: Insights into kinetics, physical behavior, and recyclability","authors":"Nathan Wybo , Antoine Duval , Luc Avérous","doi":"10.1016/j.mtsust.2025.101117","DOIUrl":"10.1016/j.mtsust.2025.101117","url":null,"abstract":"<div><div>Safe, sustainable and recyclable lignin-based polyhydroxyurethanes (PHUs) were synthesized through a simple methodology. Aminated lignins (L-NH<sub>2</sub>) were produced without formaldehyde and used as precursors for the aminolysis of cyclocarbonates (CCs). The impact of lignin up to 50 wt% on reaction kinetics, gelation, material properties and behaviors was evaluated. While lignin had minimal influence on the aminolysis kinetics and CC conversion, it accelerated considerably the gelation (from 11 h to less than 1 min) and enhanced the thermal and mechanical properties of the PHUs. For instance, Young's modulus and tensile strength of the PHUs increased with lignin content from 1.2 to 35 MPa and 0.24–4.3 MPa, respectively. Leveraging on the dynamicity of urethane bonds, PHUs could then be recycled, maintaining material integrity across multiple cycles. However, a gradual decline in mechanical properties was observed, attributable to side reactions such as urethane-to-urea condensation.</div><div>This study establishes a proof-of-concept for the production of biobased PHUs with tunable properties from aminated lignins, and also provides a deeper understanding of the influence of lignin on the behavior of these materials. The rapid gelation step induced by lignin opens several opportunities. These findings pave the way for sustainable development of renewable, high-performance polymeric materials, offering a large range of potential applications in e.g., coatings, adhesives, and foams.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101117"},"PeriodicalIF":7.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preliminary evidence that thermally inactivated mycelium improves water resistance of biostabilized earth materials","authors":"Lily Walter , Gildas Medjigbodo , Yannick Estevez , Laurent Linguet , Ouahcène Nait-Rabah","doi":"10.1016/j.mtsust.2025.101113","DOIUrl":"10.1016/j.mtsust.2025.101113","url":null,"abstract":"<div><div>Earth-building materials offer a low-carbon option for construction, but their poor water resistance limits their adoption by the construction industry. Adding biopolymers to earth materials can improve mechanical strength and water resistance but also promote mold mycelium growth that reduces indoor air quality. However, for other applications such as insulation or packaging, the controlled growth of specific mycelium is seen as a promising option for producing natural waterproof materials. These application require heat-inactivation to kill the mycelium and preserve air quality. It is currently unknown if heat-inactivated mold mycelium could improve the water resistance of earth materials. This study explores a new design by promoting the natural growth of molds on biostabilized earth materials and studying the effect on earth material properties after heat inactivation. Earth mortars were prepared by mixing soil, water, and biopolymers (2 % of soil mass) to a consistent texture. Twenty formulations, using two soils and four biopolymers, were subjected to two different 21-day cures, under dry (oven at 50 °C) or humid (30 °C, 98 % RH) conditions. Mortar properties were investigated after a 48-h 80 °C heat treatment to inactivate mold. We found that the humid cure consistently prompted mold growth on biostabilized mortars, which was associated with significantly higher water resistance compared to unexposed mortars. Specifically, capillary water absorption and mass loss after water spray was reduced by 28 % and 64 % respectively. These improvements were achieved with minimal impact on shrinkage, density, and mechanical strength. The amelioration in water resistance was attributed to the hydrophobic mold mycelium filling the earth mortar pore as observed by UV microscopy. Together, this study demonstrates that mycelium could dramatically improve the water resistance of biostabilized earth materials.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101113"},"PeriodicalIF":7.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design and modify the wood cellulose fiber reinforced high density polyethylene nanocomposite with its structurally interconnection investigation","authors":"Fangdi Huang , Chen Feng , Haonan Pei , Ding Chen , Guilin He , Shuaibo Jiang , Zedong Wu , Nannan Wang , Yanqiu Zhu","doi":"10.1016/j.mtsust.2025.101110","DOIUrl":"10.1016/j.mtsust.2025.101110","url":null,"abstract":"<div><div>The development of cellulose derivatives for advancing green polymer composites is a promising research area. In this study, we present a simple yet effective method for large-scale production of non-carbonized, chemically modified wood cellulose-reinforced high-density polyethylene (HDPE) composites, with good mechanical and thermal behaviors. This approach employs alkali bleaching treatment followed by sulfuric acid hydrolysis, without the residuals such as lignin, hemicellulose, etc. The hydroxyl (-OH) groups are detected in the wood cellulose which can be functionalized to surface of HDPE, providing flame-retardant properties. While, the mechanism of hydrogen bonding between the wood cellulose fibers (WCF) and polyethylene molecular chains is developed. Additionally, the incorporation of WCF significantly influenced the pyrolysis gas generation, with Thermo-Gravimetry-Fourier Transform Infrared spectroscopy (TG-IR) to analysis the pyrosis product with its infrared fingerprint and interconnection bonding. At an optimized loading of 3 % WCF, the composite achieved a maximum tensile strength of 12.01 MPa and an elastic modulus of 178.24 MPa, reflecting improvements of 33.6 % and 35.8 %, respectively. Also, a 38 % reduction in smoke emissions is reached. This study provides a new strategy for the development of low-cost and environmentally friendly biomass-based composites, which solves the dual problems of unsustainable and insufficient performance of traditional fillers, and has a broad application prospect in the fields of packaging and flame retardant construction.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101110"},"PeriodicalIF":7.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tinku Sharma, Utkarsh Adhikari, Anisha Nandimath, Jay Pandey
{"title":"Investigating degradation & mitigation strategies for proton conducting membrane in proton exchange membrane fuel cell: An approach to develop an active & stable membrane","authors":"Tinku Sharma, Utkarsh Adhikari, Anisha Nandimath, Jay Pandey","doi":"10.1016/j.mtsust.2025.101103","DOIUrl":"10.1016/j.mtsust.2025.101103","url":null,"abstract":"<div><div>Low-temperature proton exchange membrane fuel cells (PEMFCs) share many significant challenges in the performance, life-span, and industrial use of these membranes because of their degradation. This review synthesizes the current state of knowledge of the dominant degradation mechanisms acting on PEMs, namely mechanical stress, thermal degradation, and chemical attacks by reactive oxygen species (ROS). It is concluded that although mechanical degradation brought about by varying pressure and hydration cycles, membrane reinforcement with materials such as expanded polytetrafluoroethylene (ePTFE) and diverse composite membranes has somewhat mitigated the structural strength and toughness. Thermal and chemical degradation remains as principal challenges which are most often hastened by elevated temperatures and formation of reactive free radicals such as hydroxyl and hydrogen peroxide. Hence, to counteract chemical degradation, the addition of radical scavengers like cerium oxide (CeO<sub>2</sub>) and manganese-based additives can scavenge the destructive species even before this cause significant damage. Other new materials for PEM such as perfluorosulfonic acid (PFSA) composites have demonstrated enhanced resistance in chemical environments and a longer life. This includes research on innovative approaches such as introducing ionomers with improved thermal stability and evaluating hybrid organic-inorganic membranes in fighting the degradation mechanism of thermal degradations. This review brings out the need to understand the degradation mechanisms and advance mitigation strategies to ensure elongation of PEMFCs' life, thus paving a way for their reliability and feasibility as clean energy.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101103"},"PeriodicalIF":7.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"NiMn-LDH@Ti3C2(OH)2 as a new MXene-LDH nanocomposite for effective hydrogen evolution reaction in alkaline media","authors":"Sheyda Goudarzi , Ali Ghaffarinejad","doi":"10.1016/j.mtsust.2025.101109","DOIUrl":"10.1016/j.mtsust.2025.101109","url":null,"abstract":"<div><div>The development of efficient, earth-abundant Pt-free electrocatalysts for alkaline hydrogen evolution reaction (HER) represents a significant leap forward in sustainable green energy production. In this study, the NiMn-LDH@Ti<sub>3</sub>C<sub>2</sub>(OH)<sub>2</sub> nanocomposite was synthesized for the first time through a straightforward co-precipitation method, avoiding the need for high temperatures or prolonged reaction times and employing cost-effective salts. The vertical alignment of LDH sheets on MXene layers imparts various advantageous textural properties, such as optimized electronic configuration, efficient gas diffusion, and transport on the electrocatalyst surface, prevention of aggregation and redeposition of NiMn-LDH and MXene nanosheets, significant porosity, and a multitude of exposed active sites. Considering the synergistic effects, the NiMn-LDH@MXene (5:1) structure exhibited a significant reduction of approximately 1.3 and 1.8-fold in overvoltage at a current density of 10 mA. cm<sup>−2</sup> compared to NiMn-LDH and MXene alone. Additionally, the obtained NiMn-LDH@MXene (5:1) structure demonstrated superior HER performance, characterized by a lower onset potential at a current density of 10 mA. cm<sup>−2</sup> (<em>Ƞ</em><sub><em>10</em></sub> = −0.460 V/RHE), diminutive Tafel slope (220 mV. dec<sup>−1</sup>), and reduced charge transfer resistance (6 Ω cm<sup>2</sup>), relative to other mass ratios of NiMn-LDH@MXene (1:1, 2:1, 3:1, 4:1). The favorable HER activity positions the NiMn-LDH@Ti<sub>3</sub>C<sub>2</sub>(OH)<sub>2</sub> synthetic strategy as a potential approach for developing electrocatalysts based on other LDH and MXene compounds, including oxygen-terminated MXenes, to enhance catalytic performance.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101109"},"PeriodicalIF":7.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}