Materials Advances最新文献

{"title":"Strategic design of binary transition metal sulfides for superior asymmetric supercapacitors†","authors":"Junaid Khan, A. Ahmed and Abdullah A. Al-Kahtani","doi":"10.1039/D5MA00052A","DOIUrl":"https://doi.org/10.1039/D5MA00052A","url":null,"abstract":"<p >Transition metal sulfides have emerged as promising materials for asymmetric supercapacitors due to their excellent electrochemical properties, including high specific capacitance and superior cycling stability. These characteristics offer significant potential for advancing energy storage technologies with improved performance and efficiency. In this study, a series of bimetallic sulfides were synthesized by systematically varying the nickel-to-cobalt ratio, starting from individual phases of NiS<small>₂</small> and CoS<small>₂</small>. Among the prepared compositions, Ni<small>_0.5</small>Co<small>_0.5</small>S<small>₂</small> demonstrated the most outstanding electrochemical behavior, achieving a high specific capacity of 1710 C g<small>⁻¹</small> at a scan rate of 0.002 V s<small>⁻¹</small>. When employed as the anode material in an asymmetric supercapacitor device, it delivered an impressive energy density of 120 W h kg<small>⁻¹</small> at a power density of 1020 W kg<small>⁻¹</small>. Notably, even at a high power density of 8510 W kg<small>⁻¹</small>, the device retained a substantial energy density of 36 W h kg<small>⁻¹</small>. Furthermore, the device exhibited excellent long-term cycling performance, maintaining 96% of its initial capacity after 4000 continuous charge–discharge cycles at a current density of 10 A g<small>⁻¹</small>. These findings highlight the strong potential of Ni<small>_0.5</small>Co<small>_0.5</small>S<small>₂</small> as an efficient and durable electrode material for next-generation high-performance asymmetric supercapacitor systems.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 10","pages":" 3344-3354"},"PeriodicalIF":5.2,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00052a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction to advances in emerging thermoelectric materials and devices","authors":"Krishna Nama Manjunatha, Shashi Paul, Satyajit Sahu and Mona Zebarjadi","doi":"10.1039/D5MA90026C","DOIUrl":"https://doi.org/10.1039/D5MA90026C","url":null,"abstract":"<p >A graphical abstract is available for this content</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 9","pages":" 2714-2717"},"PeriodicalIF":5.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma90026c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring a new synthesis route to lithium-excess disordered rock salt (DRX) cathode materials†","authors":"Matthew S. Chambers, Tianyu Li, Zhilin Liang, Jong Keum, Kevin H. Stone, Raphaële J. Clément, Beth L. Armstrong and Ethan C. Self","doi":"10.1039/D4MA01287A","DOIUrl":"https://doi.org/10.1039/D4MA01287A","url":null,"abstract":"<p >Lithium-excess disordered rock salt (DRX) materials are promising candidates for Co/Ni-free Li-ion cathodes due to their high specific energy (800+ W h kg<small>⁻¹</small>) and compositional flexibility. DRX cathodes are typically synthesized using solid-state reactions, which are difficult to scale and provide little-to-no control over particle morphology. To address this bottleneck, the present study reports a two-step, solution-based reaction route to prepare Mn/Ti-based DRX oxyfluoride cathodes with nominal compositions of Li<small>_1.25</small>Mn<small>_0.5</small>Ti<small>_0.3</small>O<small>_1.95</small>F<small>_0.05</small> and Li<small>_1.35</small>Mn<small>_0.7</small>Ti<small>_0.1</small>O<small>_1.85</small>F<small>_0.15</small>. More specifically, a glycine–nitrate combustion reaction is used to produce a lithiated transition metal oxide, which is further reacted with LiF to produce high-purity DRX powders. Remarkably, this route yields 80–90% pure DRX after annealing for 1 h at 800–1000 °C, and <small>¹⁹</small>F solid-state nuclear magnetic resonance (ssNMR) spectra demonstrate that F<small>⁻</small> anions are successfully incorporated into the DRX structure. Cathodes prepared using this approach exhibit promising electrochemical performance, with Li<small>_1.35</small>Mn<small>_0.7</small>Ti<small>_0.1</small>O<small>_1.85</small>F<small>_0.15</small> attaining reversible capacities ∼210 mA h g<small>⁻¹</small> and moderate cycling stability in half cells (65% capacity retention over 150 cycles). Overall, these results demonstrate that utilizing novel metal oxide precursors presents a viable and largely unexplored method to produce high-performance Co/Ni-free DRX cathodes.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 9","pages":" 2990-3001"},"PeriodicalIF":5.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908513","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}

{"title":"An AIE-active fluorophore based dibenzothiophene-S,S-dioxide unit for highly efficient fluorescence imaging and photodynamic therapy†","authors":"Liwen Hu, Tianze Hu, Ting Guo and Chunxiao Wang","doi":"10.1039/D5MA00134J","DOIUrl":"https://doi.org/10.1039/D5MA00134J","url":null,"abstract":"<p >In this work, we introduced an AIE-active small molecule fluorophore (SOTA) based on electron-withdrawing dibenzothiophene-<em>S</em>,<em>S</em>-dioxide. Thanks to the robust intramolecular charge-transfer characteristic of SOTA with D–A–D architecture, the water-soluble nanoparticles (SOTA NPs) presented impressive two-photon absorption properties and efficient intersystem crossing. A high two-photon absorption cross-section of 7247 GM upon excitation at 700 nm enabled it to be successfully implemented in vascular imaging of <em>in vivo</em> and <em>ex vivo</em> tissues. A moderate penetration depth of 295 μm and an extremely high SNR value of 46 were obtained in two-photon fluorescence imaging for bladder vessels. Moreover, with the aid of the T<small>₂</small> state, the possibility of intersystem crossing from S<small>₁</small> to T<small>₁</small> was further elevated, which was conducive to attaining superior reactive oxygen species (ROS) generation yields. Decent ROS generation capability was confirmed by the attenuated absorption of 9,10-anthracenediyl-bis(methylene)dimalonic acid (ABDA) and electron paramagnetic resonance (EPR) experiments for SOTA nanoparticles. A ROS yield of 58.5% was achieved under white light irradiation. The positive photodynamic therapeutic effect on A549 cells has been convincingly demonstrated <em>in vitro</em>. The results indicated that SOTA nanoparticles can be used for two-photon fluorescence imaging and photodynamic therapy.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 10","pages":" 3331-3337"},"PeriodicalIF":5.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00134j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First-principles study of the ground-state properties of ternary borides with the Ru3B2X (X = Th, U) type structure: a comparative analysis†","authors":"Md. Raihan Islam, Prianka Mondal and Arpon Chakraborty","doi":"10.1039/D5MA00091B","DOIUrl":"https://doi.org/10.1039/D5MA00091B","url":null,"abstract":"<p >The distinctive structural, mechanical, electrical, and thermophysical characteristics of the hexagonal Ru<small>₃</small>B<small>₂</small>X (X = Th, U) compounds make them appropriate for high-temperature and cutting-edge technological applications. Their ground-state features are investigated in this work using density functional theory (DFT). Ru<small>₃</small>B<small>₂</small>U exhibits higher stability than Ru<small>₃</small>B<small>₂</small>Th, confirming mechanical stability and advantageous formation in both compounds. Both Ru<small>₃</small>B<small>₂</small>Th and Ru<small>₃</small>B<small>₂</small>U show covalent bonding, moderate hardness, and ductility, with Ru<small>₃</small>B<small>₂</small>Th exhibiting better machinability and greater ductility. Metallic behavior and the characteristic Fermi surface features are highlighted by electronic band structure investigation, with Ru<small>₃</small>B<small>₂</small>Th exhibiting increased electronic conductivity. Although both compounds show strong covalent connections, uranium and thorium have distinct effects on bonding. Both compounds have high Debye temperatures and melting points indicating their strong bonding and thermal stability. Between the two compounds, Ru<small>₃</small>B<small>₂</small>Th is preferable for thermal insulation. Optical properties show that these compounds behave in an anisotropic manner and have modest reflectivity, which is compatible with their metallic electronic structure. Due to their high optical reflectivity in the infra-red (IR) region, they are also candidates for IR-shielding applications. This thorough analysis emphasizes their potential for uses demanding robust thermal, mechanical, and optical characteristics.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 10","pages":" 3293-3313"},"PeriodicalIF":5.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00091b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategies for balancing safety in oxadiazole tetrazole derivatives: the role of the oxime group†","authors":"Parul Saini, Jatinder Singh, Vikranth Thaltiri, Richard J. Staples and Jeanne M. Shreeve","doi":"10.1039/D5MA00150A","DOIUrl":"https://doi.org/10.1039/D5MA00150A","url":null,"abstract":"<p >The development of modern thermostable and insensitive energetic materials is crucial. In this study, straightforward syntheses of thermostable and insensitive 4-amino-1,2,5-oxadiazol-3-yl(1<em>H</em>-tetrazol-5-yl)methanone oxime (<strong>4</strong>) and its energetic salts (<strong>5–7</strong>) are given. These oxime-bridged oxadiazole-tetrazole derivatives exhibit significant thermal stability, with decomposition temperatures 204–275 °C, and demonstrate high insensitivity to impact (IS &gt; 40 J) and friction (FS &gt; 360 N). These significant energetic performance properties can be ascribed to the oxime group positioned between the oxadiazole and tetrazole rings, which promotes robust non-covalent interactions within the molecular geometry. Moreover, the compounds exhibit favorable densities and high heats of formation compared to TNT, RDX, TATB, and HNS.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 10","pages":" 3338-3343"},"PeriodicalIF":5.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00150a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental materials: CO2-adsorbing clays for enhancing soil fertility and agricultural sustainability†","authors":"Faizah Altaf, Shakeel Ahmed, Shahid Ali, Muhammad Mansha and Safyan Akram Khan","doi":"10.1039/D4MA01246A","DOIUrl":"https://doi.org/10.1039/D4MA01246A","url":null,"abstract":"<p >To combat desertification and climate change, innovative solutions are crucial for restoring the fertility of desert lands and mitigating the adverse effects of global warming. One promising approach involves utilizing carbon dioxide (CO<small>₂</small>), a major greenhouse gas, as a resource to enhance soil fertility. This study explores the transformation of desert sands into fertile land using CO<small>₂</small> adsorbed on clays, offering a novel solution to combat desertification and mitigate climate change. We developed CO<small>₂</small>-enriched fertilizers using the solgel method, and the process involved purifying raw kaolinite followed by CTAB intercalation and impregnation with varying concentrations of polyethyleneimine (PEI) (30 and 50%). The prepared fertilizers were analyzed using FTIR, XRD, SEM, and TEM to assess their structural and morphological properties. Furthermore, these adsorbents were evaluated for CO<small>₂</small> uptake potential. The highest CO<small>₂</small> adsorption capacity of 167.1 mg g<small>⁻¹</small> was obtained with CKP-50 much higher than unmodified kaolinite (0.901 mg g<small>⁻¹</small>). FTIR analysis confirmed that CO<small>₂</small> adsorption on the prepared fertilizers occurred <em>via</em> chemical interaction with amine groups. The CO<small>₂</small>-enriched clays were mixed with sand in appropriate concentrations to support plant growth in desert lands. The plant growth trial showed significant improvements with PEI impregnated samples, S-CKP-30 and S-CKP-50, which supported taller and healthier plants compared to pure kaolinite (S-PK) and CTAB-modified kaolinite (S-CKP-0). By day 30, plants with S-CKP-50 reached 27.1 cm in height demonstrating enhanced plant growth, especially in arid conditions, by improving moisture retention, nutrient availability, and increased CO<small>₂</small> adsorption. These results showed that our prepared fertilizers, especially S-CKP-50, proved to be the most effective material for CO<small>₂</small> mitigation and promoting plant growth, hence offering a promising approach to desert reclamation and CO<small>₂</small> sequestration simultaneously.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 10","pages":" 3264-3279"},"PeriodicalIF":5.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01246a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction to structure–property relationships in alloys","authors":"Xiaoxiang Wu, Seok Su Sohn, Zhongji Sun and Qingqing Ding","doi":"10.1039/D5MA90027A","DOIUrl":"https://doi.org/10.1039/D5MA90027A","url":null,"abstract":"<p >A graphical abstract is available for this content</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 10","pages":" 3015-3016"},"PeriodicalIF":5.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma90027a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of magnetic materials bearing Brønsted acid sites – based on the modification of amorphous carbon with ionic liquids as catalysts for synthesis of dihydropyrimidinone derivatives via the Biginelli reaction†","authors":"Thai-Phien Huynh Dang, Thach Ngoc Pham, Phuong Hoang Tran and Hai Truong Nguyen","doi":"10.1039/D5MA00045A","DOIUrl":"https://doi.org/10.1039/D5MA00045A","url":null,"abstract":"<p >Biomass is a widely available and renewable natural resource derived from plant and animal materials. In addition to its role as an energy source, it is increasingly recognized as a valuable raw material for synthesizing solid catalysts. These catalysts play a crucial role in various organic synthesis reactions, offering a sustainable and eco-friendly alternative to conventional catalyst materials. In this study, by modifying amorphous carbon derived from rice husks with ionic liquid, followed by sulfonation and magnetization with magnetite, we successfully synthesized a solid catalyst Fe<small>₃</small>O<small>₄</small>@AmC/KSO<small>₃</small>H (KS71), which is a magnetic material bearing Brønsted acid sites, for synthesizing dihydropyrimidinone derivatives <em>via</em> the Biginelli reaction. The synthesized catalyst can be easily separated, recovered, and reused without generating or releasing by-products while still providing high efficiency. The dihydropyrimidinone derivatives synthesized <em>via</em> the Biginelli reaction showed remarkable yields with our synthesized catalyst. With a short synthesis time, good yield, and especially being environmentally friendly, the catalyst that we offer is a great substance for reactions taking place during chemical synthesis. The results from analytical instruments such as FT-IR, EDX, ICP-MS, TGA, SEM, VSM, and <small>¹</small>H-NMR, <small>¹³</small>C-NMR spectra have shown that we have successfully synthesized the solid catalyst and dihydropyrimidinone derivatives with good yields, along with ensuring safety according to green chemistry criteria.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 10","pages":" 3314-3330"},"PeriodicalIF":5.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00045a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pioneering wound care solutions: triaxial wet-spun fibers with bioactive agents for chronic wounds – part I (production and characterization of the triaxial fibers)†","authors":"Catarina S. Miranda, Elina Marinho, Diana Rocha, Carla Silva, M. Manuela P. Silva, Inge Schlapp-Hackl, Wenwen Fang, Michael Hummel, Susana P. G. Costa, Natália C. Homem and Helena P. Felgueiras","doi":"10.1039/D4MA01105H","DOIUrl":"https://doi.org/10.1039/D4MA01105H","url":null,"abstract":"<p >Fiber-based constructs have been produced as an alternative to conventional dressings for the treatment of chronic wounds (CWs), showing good tenability, high surface area and regulable porosity. A commonly used technique for processing such dressings is wet-spinning, which involves precipitating a polymer solution into a coagulation bath containing a non-solvent of that polymer. This process produces fibers with varying diameters and morphologies. In this study, we propose to engineer a triaxial wet-spun fibrous system, consisting of three layers, modified with active agents for wound healing applications. The innermost layer (core) was composed of polycaprolactone (PCL), which imparted the fibers with high elasticity and mechanical properties. This layer was blended with cinnamon leaf oil (CLO), enhancing the system with antibacterial and antioxidant capacities. The intermediate layer contained sodium alginate (SA), conferring a moist environment, loaded with the alanine–alanine–proline–valine (AAPV) tetrapeptide, responsible for regulating the local enzymatic activity. The outermost layer, or shell, was composed of cellulose acetate (CA), which conferred high rigidity and porosity to the fibers. This report represents the initial phase of a broader study, concentrating on the evaluation of the morphological, physical, thermal, and mechanical properties of the proposed triaxial system. The fibers demonstrated maximum elongations at break exceeding 300%, also achieving tenacities up to 41.40 ± 0.03 MPa. They were also found to maintain their structural integrity when exposed to physiological-like conditions, in which the triaxial fibers achieved 9.61 ± 4.08% mass loss after 28 days of incubation, and to exhibit high thermal stability. Furthermore, all fibers attained porosity between 10 and 60% and a dressing composed of these triaxial wet-spun fibers was successfully knitted, serving as proof of concept for the potential application of these fibers in dressing fabrication. The engineered fibers not only possess high mechanical, thermal and structural stability, but also allow for a sustained and orderly release of two active agents, AAPV and CLO, simultaneously controlling local enzymatic activity and reactive oxygen species (ROS) levels and fighting bacterial infections. Overall, the results confirmed the feasibility of the designed wet-spun fibers for future wound healing applications.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 10","pages":" 3237-3252"},"PeriodicalIF":5.2,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01105h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}