Materials Today Sustainability最新文献

{"title":"Nanostructured transition metal-based electrocatalysts: A promising pathway in anion exchange membrane water electrolysis","authors":"Nurul Nabila Rosman ,&nbsp;Wei Shi Ng ,&nbsp;Nur Rabiatul Adawiyah Mohd Shah ,&nbsp;Mohd Shahbudin Masdar ,&nbsp;Nabila A. Karim ,&nbsp;Narges Ataollahi ,&nbsp;Rozan Mohamad Yunus","doi":"10.1016/j.mtsust.2025.101203","DOIUrl":"10.1016/j.mtsust.2025.101203","url":null,"abstract":"<div><div>Anion exchange membrane water electrolysis (AEMWE) represents a viable technology for the sustainable production of hydrogen (H₂). Traditional noble metal catalysts, such as platinum and iridium, are costly, which impedes their commercial viability. This review explores the potential of nanostructured transition metal-based compounds (TMCs) as non-noble metal electrocatalysts such as transition metal dichalcogenides (TMD), transition metal sulfides (TMS), transition metal oxides (TMO), and other transition metal compounds for AEMWE, highlighting their advantageous properties for the H₂ evolution reaction (HER) and oxygen evolution reaction (OER). It also discusses the challenges and opportunities related to implementation, including stability and durability issues, mass transport limitations, and scalability concerns. By providing a comprehensive overview of the recent progress in nanostructured TMCs for AEMWE, this review aims to stimulate further research and development initiatives to achieve the commercialization of this sustainable energy technology without relying on precious metals.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101203"},"PeriodicalIF":7.9,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885564","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":"A review of flax fiber reinforced polylactic acid composites as green polymeric materials: Ageing properties, sustainability, challenges and future perspectives","authors":"Awoke Fenta Wodag ,&nbsp;Yirga Adera ,&nbsp;Yudong Wang ,&nbsp;Tamrat Tesfaye Yimer ,&nbsp;Fujun Xu","doi":"10.1016/j.mtsust.2025.101198","DOIUrl":"10.1016/j.mtsust.2025.101198","url":null,"abstract":"<div><div>Synthetic fiber composites (SFCs) have various engineering applications because of their high mechanical performance with lightweight characteristics. However, their un eco-friend and unsustainability behavior led to a shift towards green composites. Yet, the qualities of NFCs have its own limitations due to its hydrophilic nature and low thermal stability issue. Therefore, natural fibers have been chemically treated to improve these constraints for better performances, however, on the other hand these chemicals will challenges the greening environment. Thus, after use, composite materials should be aged and composited in to environment for better ecosystem. When green composites are exposed to some external ageing conditions its properties will become degraded. Therfore, this review targets to show natural fiber reinforced polymeric composites, (specifically flax reinforced polylactic acid composites) are greener and more sustainable than synthetic fiber composites with more specific and detailed ways compared to that of related documented reviews. The moisture and hydrothermal accelerated aging methods were focused to analysis ageing properties of the flax-bio composites. This review research showed, the degree of greenness of the polymeric composites could depend on the specific reinforcing fiber types, its quantity of environmental impact in its life cycle and the matrix material properties used in the composites. Furthermore, the applications of flax composites in several areas were described. Finally, the review summarizes the findings of the existing literature and has suggested key insights for possible future consideration in the field.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101198"},"PeriodicalIF":7.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865679","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":"Synergistic optimization of RuNi alloy thin films via aerosol-assisted chemical vapor deposition for efficient hydrogen evolution in acidic media","authors":"Muhammad Ali Ehsan ,&nbsp;Muthumariappan Akilarasan ,&nbsp;Muhammad Ali ,&nbsp;Abbas Saeed Hakeem ,&nbsp;Bilal Anjum Ahmed ,&nbsp;Faheemuddin Patel ,&nbsp;Wasif Farooq","doi":"10.1016/j.mtsust.2025.101201","DOIUrl":"10.1016/j.mtsust.2025.101201","url":null,"abstract":"<div><div>Ruthenium (Ru)-based catalysts are promising alternatives to platinum (Pt) for the hydrogen evolution reaction (HER) due to their comparable hydrogen adsorption properties and lower cost. Efficient synthesis of Ru catalysts for achieving high current density and stability has become crucial for large-scale hydrogen production via water electrolysis. This work demonstrates that RuNi alloy thin films fabricated through a simple aerosol-assisted chemical vapor deposition process show great promise for HER under acidic conditions. The alloy catalyst, designed with an optimized 1:1 elemental composition, exhibits a granular morphology and facilitates strong synergistic electronic interactions between Ru and Ni. This all leads to develop an outstanding catalytic performance, including a current density of 1 A cm⁻² at an overpotential of 152 mV, a low Tafel slope of 38 mV dec⁻¹ and high electrochemical surface area. The robust RuNi thin film maintains continuous HER activity for 45 h at 25 and 50 mA cm⁻² without changes in composition or morphology. Density functional theory calculations reveal that Ni weakens hydrogen adsorption on Ru sites and enhances charge transfer between Ru and Ni, which drives the significantly improved HER activity. This work emphasizes fabricating thin-film catalysts via a tailored CVD process to achieve promising water-splitting performance.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101201"},"PeriodicalIF":7.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144878973","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":"Bidirectional BPNN-based color prediction framework for wide-gamut color-spun yarns: Enhancing digital control in sustainable textile manufacturing","authors":"Peng Cui ,&nbsp;Yuan Xue ,&nbsp;Juanjuan Li","doi":"10.1016/j.mtsust.2025.101199","DOIUrl":"10.1016/j.mtsust.2025.101199","url":null,"abstract":"<div><div>This study addresses the challenge of bidirectional color prediction in wide-gamut color-spun yarns through the development and validation of robust Backpropagation Neural Network (BPNN) models. Unlike traditional physical color models that struggle with the complex optical interactions in fibrous structures, our approach leverages neural networks' capacity to model non-linear relationships directly from experimental data. We designed a comprehensive grid-based color mixing framework using four strategically selected primary fibers (Grey, Cyan, Magenta, and Yellow), from which 66 distinct yarn samples were produced and characterized. Two specialized BPNN architectures were developed: one predicting blend ratios from spectral reflectance data, and another forecasting resultant CIELAB values from known blend ratios. The models were trained, validated, and tested using industry-standard metrics, achieving high accuracy with mean squared error values consistently below 0.03 for ratio prediction and color differences (ΔE) generally around 2.0 for color prediction. Practical validation involved producing yarns based on BPNN-predicted recipes, which demonstrated close visual and spectrophotometric agreement with target colors. Beyond addressing the limitations of conventional color theories, this bidirectional prediction framework offers significant practical implications for textile manufacturing, enabling both precise recipe formulation from target colors and accurate color forecasting from known recipes. This research advances textile coloration toward more sustainable, digitally-integrated production processes with color reproduction capabilities approaching modern digital color standards.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101199"},"PeriodicalIF":7.9,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144861114","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":"Melamine-based materials and composites for catalytic applications in organic synthesis","authors":"Saba Shahzadi ,&nbsp;Sadia Zaheer ,&nbsp;Khush Bakht ,&nbsp;Francis Verpoort ,&nbsp;Habib Ullah ,&nbsp;Hyun You Kim","doi":"10.1016/j.mtsust.2025.101192","DOIUrl":"10.1016/j.mtsust.2025.101192","url":null,"abstract":"<div><div>The development of efficient, stable, and environmentally benign catalysts advances sustainable organic synthesis. Among emerging materials, melamine, a low-cost, nitrogen-rich heterocycle, has attracted significant attention for its ability to form functional composites with a wide range of advanced materials, including porous organic frameworks (POFs), covalent organic frameworks (COFs), metal-organic frameworks (MOFs), graphene oxide (GO), and graphitic carbon nitride (g-C₃N₄). These materials benefit from melamine's structural versatility, high nitrogen content, and its ability to coordinate with metal centers, making them highly suitable platforms for heterogeneous catalysis. This review provides a comprehensive overview of recent progress in melamine-based composite catalysts, focusing on their structural design, physicochemical properties, and catalytic performance in key organic transformations, such as coupling, condensation, hydrogenation, oxidation, and CO₂ conversion reactions. Particular emphasis is placed on synthetic strategies, structure-activity relationships, and advantages including recyclability, high surface area, and tunable porosity. By mapping the current landscape of melamine-derived catalytic materials and elucidating their mechanistic roles in green chemistry, this review aims to inspire future research and foster innovation at the intersection of materials science and catalysis.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101192"},"PeriodicalIF":7.9,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858264","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":"Harnessing plant extracts for green nanoparticle synthesis: Toward a sustainable future","authors":"Humaira Khan,&nbsp;Simona Piccolella,&nbsp;Severina Pacifico","doi":"10.1016/j.mtsust.2025.101195","DOIUrl":"10.1016/j.mtsust.2025.101195","url":null,"abstract":"<div><div>Nanotechnology is revolutionizing diverse scientific fields, yet conventional nanoparticle (NP) synthesis remains energy-intensive and environmentally hazardous. This has fuelled a shift toward sustainable, biogenic approaches, with plant-mediated NP synthesis emerging as a promising alternative. Leveraging the rich diversity of plant-derived phytochemicals, such as flavonoids, polyphenols, and alkaloids, this method offers a sustainable, cost-effective and eco-friendly route to nanoparticle production. However, despite its potential, key challenges remain: the incomplete characterization of plant extracts hampers reproducibility, control over NP morphology, and large-scale implementation. While many studies report successful NP synthesis, a precise understanding of the specialized metabolites involved is still lacking. Bridging this knowledge gap is crucial for optimizing NP properties and expanding their biomedical, catalytic, and industrial applications. This review critically examines the role of specialized plant metabolites in NP synthesis, detailing analytical techniques, such as LC-MS, FTIR, and NMR, for their characterization. Scalability remains a key challenge in plant-mediated nanoparticle synthesis, with reproducibility often limited by non-standardized extraction methods. Strategies such as protocol harmonization, the integration of advanced analytical tools, and the application of artificial intelligence (AI) can significantly enhance consistency and predictability. Recent publication trends show growing interest in green synthesis, particularly in applications across healthcare, food nanotechnology, and smart packaging. Addressing current limitations and deepening the understanding of plant-derived metabolites could shift the field from empirical trials to a standardized, scalable, and industrially viable green technology, supporting the development of sustainable materials.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101195"},"PeriodicalIF":7.9,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144828963","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":"Impact of dopant levels, composition, temperature, and microstructure on exsolved iron and cobalt catalysts for the reverse water-gas shift reaction","authors":"Shailza Saini,&nbsp;Harley Makepeace,&nbsp;Nathaniel Allen,&nbsp;Qiong Cai,&nbsp;Kalliopi Kousi","doi":"10.1016/j.mtsust.2025.101196","DOIUrl":"10.1016/j.mtsust.2025.101196","url":null,"abstract":"<div><div>Exsolution has been recently demonstrated as one of the most effective strategies for designing highly stable and active catalysts, offering precise control over nanoparticle size, composition, structure, and morphology. This approach has gained significant attention for CO₂ utilisation, particularly in the reverse water-gas shift (rWGS) reaction. However, the efficiency of exsolved catalysts is governed by multiple factors that influence nanoparticle formation, distribution, and stability. To gain a comprehensive understanding of how these various parameters interplay in exsolved catalysts, this study systematically investigates the impact of dopant levels, composition, reduction temperature, and material microstructure on the exsolution of iron and cobalt nanoparticles from perovskite materials and assesses their catalytic performance in the rWGS reaction. Our findings highlight the critical role of microstructure refinement, dopant chemistry, and pre-treatment conditions in optimising exsolution behaviour and catalytic performance. This work offers valuable insights toward establishing a standardised framework for the rational design of efficient and stable next-generation exsolved catalysts for CO₂ utilisation but is also expected to impact many other applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101196"},"PeriodicalIF":7.9,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842092","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":"Recent advances in hydrogen spillover and reverse hydrogen spillover for the two-dimensional materials","authors":"Yanzhao Shi ,&nbsp;Shurong Zhang ,&nbsp;Xingwang Liu ,&nbsp;Shenhao Wang ,&nbsp;Bo Gao ,&nbsp;Jin Wang","doi":"10.1016/j.mtsust.2025.101194","DOIUrl":"10.1016/j.mtsust.2025.101194","url":null,"abstract":"<div><div>The efficient hydrogen evolution reaction (HER) is crucial for clean hydrogen energy production. Two-dimensional (2D) materials, as promising non-noble metal HER catalysts, often suffer from limitations such as insufficient active sites and low electron transport efficiency. This review focuses on the phenomena of hydrogen spillover and reverse hydrogen spillover within 2D material systems, systematically examining recent research progress on how these phenomena enhance HER performance. We discuss the fundamental principles and catalytic mechanisms by which hydrogen spillover and reverse hydrogen spillover optimize hydrogen adsorption/desorption kinetics. Interface engineering strategies, including the construction of heterointerfaces, tuning of work function difference, and strengthening of metal-support interactions are summarized as effective approaches to promote (reverse) hydrogen spillover effects, thereby enhancing catalytic activity and stability. Finally, we outline key verification methods, including electrochemical measurements, in situ spectroscopies, and density functional theory (DFT) calculations. This review aims to provide a theoretical foundation and directional guidance for the design and development of efficient and stable 2D HER electrocatalysts leveraging spillover effects, contributing to the advancement of the green hydrogen economy.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101194"},"PeriodicalIF":7.9,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842091","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":"Green synthesis and characterization of titanium dioxide nanoparticles using Eucalyptus globulus leaf extract: Impacts of the mild thermal treatment","authors":"Abouelkacem Sahraoui ,&nbsp;Mouna Hamlaoui ,&nbsp;Sara Chikhi ,&nbsp;Safia Harrat ,&nbsp;Oualid Baghriche ,&nbsp;Abdennour Zertal ,&nbsp;Sergio Vernuccio","doi":"10.1016/j.mtsust.2025.101193","DOIUrl":"10.1016/j.mtsust.2025.101193","url":null,"abstract":"<div><div>Current research efforts are directing considerable attention towards the green synthesis of nanomaterials, such as titanium dioxide nanoparticles (NPs) known for their versatile technological applications. The present work is the first to report on the synthesis of TiO₂ NPs using eucalyptus globulus leaf extract - a gentle, renewable, and non-toxic agent - in conjunction with titanium butoxide as a precursor in a mild thermal treatment. The results comprise four distinct biosynthesised material samples, each obtained by applying different techniques, including single and double-thermal treatments of NPs. Initially characterized by Fourier-transform infrared (FT-IR) and UV–visible spectroscopy, the plant extract plays a dual role in both reduction and stabilisation, leading to a remarkable NPs stability. The phytochemicals components, including phenolic and flavonoid acids, are believed to reduce the Ti⁴⁺ ions, aiding in the creation of related NPs. The successfully synthesised TiO₂ samples were characterised with diffuse reflectance UV–visible spectroscopy (DRS), FT-IR, Raman, X-ray powder diffraction (XRD), and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX). The findings from these investigations highlighted the pure, uniform structure, and arrangement of all NP samples, exhibiting a spherical morphology and a predominance of the anatase form. The characteristic parameters of the NPs including particle size, band gap energy, crystallinity, and lattice constants, were calculated and compared to those of commercial TiO₂. The double thermally treated sample exhibits a closer resemblance to commercial TiO₂ compared to both the singal thermally treated sample and the untreated counterpart. This suggests that the proposed mild thermal treatment can serve as an alternative approach for the effective and environmentally friendly preparation of TiO₂ NPs, ensuring good physico-chemical characteristics for a broad spectrum of advanced and sustainable applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101193"},"PeriodicalIF":7.9,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893377","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":"Graphitic carbon nitride-based composite architectures for photocatalytic hydrogen production: A critical review","authors":"Lalit Goswami ,&nbsp;Anamika Kushwaha ,&nbsp;Pritam Kumar Dikshit ,&nbsp;Karabi Roy ,&nbsp;Mohd Shabbir ,&nbsp;Ashwani Kumar Rathore ,&nbsp;Seungdae Oh","doi":"10.1016/j.mtsust.2025.101188","DOIUrl":"10.1016/j.mtsust.2025.101188","url":null,"abstract":"<div><div>The green chemical fuels instantaneously are the key to the global energy crisis along with the environmental challenges. In this regard, there is a continuous rise in the search for avenues for clean and efficient hydrogen energy production. The graphitic carbon nitride (g-C₃N₄) based composite architectures have gained the attraction owing to their exceptional favorable characteristics viz., increased stability, unique bandgap energy, valence band, efficient conductivity, and economic involvement. The present review emphasizes the potential of different g-C₃N₄-based composite architectures for green hydrogen production. Taking the fundamentals, background, properties, synthesizing strategies, and optimization into consideration, a tremendous number of studies on g-C₃N₄-based composite architectures have been explored. Numerous modification strategies for g-C₃N₄-based composites for hydrogen production via photocatalyst are covered. The potential of different composites synthesized via doping g-C₃N₄ lattice with different metals, non-metals, metal organic frameworks and covalent organic frameworks, MXenes, graphene, carbon dots, perovskite-type oxides, molecular doping, carbon nanotubes, etc., are covered and compared along with the mechanistic insights for the green hydrogen production. The review also briefly discusses regarding the advantages, existing limitations, and future perspectives of g-C₃N₄-based composite architectures for hydrogen production.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101188"},"PeriodicalIF":7.9,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144828964","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}