Sustainable Materials and Technologies最新文献

{"title":"Designing hierarchical Zr-Co MOF nanostructures on CuO nanowires electrode for energy storage devices","authors":"Muhammad Ahmad ,&nbsp;Tehseen Nawaz ,&nbsp;Iftikhar Hussain ,&nbsp;Xi Chen ,&nbsp;Yassine Eddahani ,&nbsp;Rajat Walia ,&nbsp;Ci Wang ,&nbsp;Karanpal Singh ,&nbsp;Bhargav Akkinepally ,&nbsp;Kaili Zhang","doi":"10.1016/j.susmat.2025.e01848","DOIUrl":"10.1016/j.susmat.2025.e01848","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) offer significant benefits for enhancing the characteristics and architecture of resultant metal-based active materials. Our study introduces a unique electrode material, Zr-Co oxide@CuO, derived from a Zr-Co MOF precursor combined with a pre-oxidized Cu mesh. By anchoring n-type Zr-Co oxide onto a p-type CuO nanowire scaffold, we created a p-n heterostructure that synergistically combines capacitive and diffusive charge behaviours along with wide potential window (1.2 V), resulting in a composite with optimized electrochemical performance. Hybrid supercapacitor (HSC) device featuring the Zr-Co oxide@CuO as the positive and reduced graphene oxide as the negative electrode exhibited excellent energy and power densities. Additionally, density functional theory (DFT) calculations were utilized to analyse the properties of the hybrid electrode material. The HSC device demonstrated a high energy density of 53 Wh kg⁻¹ at a power density of 1.47 kW kg⁻¹. In essence, the unidirectional and vertically oriented MOF-derived Zr-Co oxide@CuO electrode, with its distinguished electrochemical performance, holds potential for the development of advanced supercapacitor electrodes.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01848"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-situ H2O2 generation and efficient roxarsone degradation mediated by Pd/Fe2O3@C: A hydrogen‑oxygen-promoted redox Fenton process","authors":"Ruibin Yang ,&nbsp;Yijun Chen ,&nbsp;Shuang Yao ,&nbsp;Sanjian Ma ,&nbsp;Feiyue Qian ,&nbsp;Feng Liu ,&nbsp;Jianhua Wu ,&nbsp;Hailiang Yang ,&nbsp;Lei Xie ,&nbsp;Zixia Lin ,&nbsp;Juanhong Li ,&nbsp;Dongmei Wang ,&nbsp;Xin Liu","doi":"10.1016/j.susmat.2026.e01864","DOIUrl":"10.1016/j.susmat.2026.e01864","url":null,"abstract":"<div><div>As a widely used advanced oxidation process (AOP), Fenton technology faces challenges in water treatment due to the need for continuous H₂O₂ addition, which raises safety concerns and operational costs. To address this, a novel Dual metal-Hydrogen-Oxygen Reduction catalytic Fenton (DmHORF/Fe₂O₃) system was constructed. This was achieved by substituting conventional ferrous salts with iron-based materials and facilitating the in-situ generation of H₂O₂ through a two-electron oxygen reduction reaction (2e⁻ORR). Under the room temperature and pressure, the electrons provided by Pd⁰ contribute to the dissociation of H₂ into two active hydrogen species (H*), which subsequently migrate to the surface of the material through the hydrogen spillover effect to form adsorbed hydrogen species ([H]). These species then react with O₂ to generate H₂O₂ in situ during the 2e⁻ORR process. The H₂O₂ is further activated at the Fe site to generate O₂⁻·, ·OH, and ¹O₂ dominated reactive oxygen species (ROS), leading to the highly efficient mineralization and degradation of the target pollutant ROX. The dominant role of ¹O₂ in this system was further confirmed through the analysis. The experimental results demonstrated that the system could degrade 96% of 50 mg·L⁻¹ ROX within 180 min. The system also exhibited high stability over eight reaction cycles.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01864"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simultaneous enhancement of humic substances and mineral availability in weathered coal via hydrothermal modification for acid soil amendment","authors":"Jinfei Yan ,&nbsp;Lin Shi ,&nbsp;Wutang Sang ,&nbsp;Jie Yuan ,&nbsp;Danping Ding ,&nbsp;Kaili Xia","doi":"10.1016/j.susmat.2026.e01862","DOIUrl":"10.1016/j.susmat.2026.e01862","url":null,"abstract":"<div><div>Soil acidification threatens agricultural sustainability, and the direct application of weathered coal (WC) in farmland has limited effectiveness due to its inert organic and mineral components. In this work, hydrothermally modified weathered coal (HMC) was synthesized using KMnO₄ as an oxidizer and alkaline earth metal cations as mineral activators to simultaneously activate the humic substances and inherent minerals in WC. Under optimal hydrothermal conditions (0.3 M KMnO₄, 190 °C,3 h), the contents of humic acid (HA) and fulvic acid (FA) increased by 53% and 46% respectively, and the available CaO, MgO, K₂O and SiO₂ contents were significantly elevated to 175.34 mg·g⁻¹, 44.43 mg·g⁻¹, 33.34 mg·g⁻¹, 45.78 mg·g⁻¹, with the SiO₂ activation efficiency reaching 70.14%. The treatment promoted the oxidation of organic matter with the increasement of oxygen-containing functional groups, and induced the formation of new mineral phases including görgeyite (K₂Ca₅(SO₄)₆·H₂O), calcium silicate hydrate (C-S-H), diopside (CaMgSi₂O₆), and katoite (Ca₃Al₂(OH)₁₂). Additionally, the specific surface area of HMC was 1.12 times that of WC, with an improved pore architecture. Pot experiment corroborated that HMC raised soil pH by 1.96 units, enhanced soil organic matter and available nutrients, and facilitated the growth and nutrient uptake of pakchoi (<em>B. rapa</em> ssp. <em>chinensis</em>). This work presents a strategy for the value-added utilization of WC and the development of soil conditioners with practical potential.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01862"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Technological pathways and sustainability insights into spent lithium-ion batteries","authors":"Anusha Ekanayake ,&nbsp;Samson S. Yu ,&nbsp;Sakib T. Hossain ,&nbsp;Hongli Su ,&nbsp;Yihan Chen ,&nbsp;Joe Fleming ,&nbsp;Yongqing Zhang ,&nbsp;Shuaifei Zhao","doi":"10.1016/j.susmat.2026.e01859","DOIUrl":"10.1016/j.susmat.2026.e01859","url":null,"abstract":"<div><div>Recycling spent lithium-ion batteries (LIBs) provides a strategic pathway toward resource circularity, carbon emission reduction, and supply chain resilience amid the growing accumulation of end-of-life LIBs. This review synthesizes state-of-the-art developments in LIB recycling technologies and provides a critical comparison of their technical mechanisms, process efficiencies, and scalability at both laboratory and industrial levels. Existing life cycle assessment and techno-economic analysis studies are critically compared for evaluating the environmental impacts and economic feasibility of different recycling technologies. This work supports informed decision-making by researchers, policymakers, and industry by identifying key challenges and providing future directions to ensure the long-term sustainability of the battery industry. Although conventional metallurgical approaches demonstrate strong industrial applicability, they are limited by high operating temperatures and the associated greenhouse gas emissions. In contrast, direct recycling and upcycling methods offer simpler and more efficient routes to retain the residual value of spent LIBs. However, the need for advanced pretreatment steps and reliance on accurate assessment of failure states limit practical implementation. Apart from technological advancements, supportive policy frameworks and regulatory standards are essential for the sustainable life-cycle management of LIBs. This review aims to inspire innovative solutions that combine technological advancement with sustainable industrial practices to enhance circular management of LIBs.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01859"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A hydrophobic and high-toughness elastomer-modified bio-based film-coated controlled-release fertilizer","authors":"Denglun Chen ,&nbsp;Lulu Cao ,&nbsp;Meiqi Han ,&nbsp;Junyin Li ,&nbsp;Zhaohui Tong ,&nbsp;Chunyan Tang ,&nbsp;Yuechao Yang ,&nbsp;Shugang Zhang","doi":"10.1016/j.susmat.2026.e01877","DOIUrl":"10.1016/j.susmat.2026.e01877","url":null,"abstract":"<div><div>The development of bio-based controlled-release coating materials for controlled-release fertilizers has become a key research focus in sustainable agriculture, driven by their renewability, cost-effectiveness, and environmental benefits in contrast to conventional petrochemical counterparts, which are often non-renewable, expensive, and slow to degrade. However, bio-based materials utilized for controlled-release coatings, such as vegetable oil and lignin, usually contain hydrophilic groups, which lead to poor hydrophobicity. Furthermore, the coating shell has poor toughness and is prone to rupture. These deficiencies ultimately result in suboptimal nutrient release synchronization with crop growth cycles. In this study, a hydrophobic and high-toughness bio-based polymer coating was prepared by combining an elastomer as a modifier with the bio-based film materials. The bio-based polymer coating modified with 20% elastomer (derived from pentaethylene glycol, castor oil, and isophorone diisocyanate) exhibits high cross-linking density (high gel content), which significantly enhances the coating's mechanical properties and barrier function, thereby successfully mitigating the limitations on its release performance. Specifically, the ultimate tensile strength increases from 1.87 MPa to 14.09 MPa, the elongation at break increases from 6.06% to 15.22%, the water contact angle rises from 111.86° to 126.09°, and the controlled-release period extends from 98 days to 140 days. This study presents a new approach for incorporating the elastomer to enhance bio-based controlled-release fertilizer coating materials. In the long run, this approach is expected to offer technical insights for facilitating resource utilization and the development of sustainable agriculture.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01877"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bio-composite Panels from upcycling cigarette butts: Acoustic and thermal characterization","authors":"Aida Ardani ,&nbsp;Parham Soltani ,&nbsp;Ebrahim Taban ,&nbsp;Valeria Selicati ,&nbsp;Umberto Berardi","doi":"10.1016/j.susmat.2026.e01867","DOIUrl":"10.1016/j.susmat.2026.e01867","url":null,"abstract":"<div><div>Cigarette butts (CBs), composed of non-biodegradable cellulose acetate fibers, represent one of the most pervasive and persistent forms of urban litter, creating critical environmental and waste management challenges worldwide. This study proposes a material valorization strategy that transforms discarded CBs into multifunctional panels for thermal and acoustic building insulation. After chemical cleaning and treatment, CB-derived fibers were mixed with a natural binder to fabricate bio-composite panels. A response surface methodology (RSM) based on central composite design (CCD) was applied to optimize two key fabrication variables, thickness and bulk density, with respect to acoustic and thermal performance. The optimized panels achieved a sound absorption average (SAA) of 0.55 at only 25 mm thickness and thermal conductivity of 0.038 W/m·K, outperforming several conventional commercial benchmark materials. Flexural testing confirmed adequate mechanical integrity for non-structural applications. In addition to demonstrating technical feasibility, this work validates the predictive accuracy of RSM-CCD as an optimization tool for CB-derived composites. Comparative analysis and a preliminary cost estimate highlight the economic viability of the panels. By converting hazardous waste into scalable building products, this study addresses the interconnected challenges of pollution reduction, energy efficiency, and the circular economy in the building sector. While comprehensive life cycle assessment (LCA), fire safety testing, and long-term durability remain future steps, the findings establish CB-based panels as a promising pathway toward recycled building materials.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01867"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Li/O dual-defect modulation strategy to restructure LiNi1-x-yCoxMnyO2 surface for high-performance lithium-oxygen battery catalysts","authors":"Xianghui Yu,&nbsp;Jiening Li,&nbsp;Rui Liu,&nbsp;Junkai Wang,&nbsp;Lianfeng Duan","doi":"10.1016/j.susmat.2026.e01899","DOIUrl":"10.1016/j.susmat.2026.e01899","url":null,"abstract":"<div><div>The design of high-performance cathode catalysts is a key aspect of lithium‑oxygen battery research. A Li/O dual-defect modulation strategy for electrochemical delithiation was proposed to convert waste LiNi_1-x-yCo_xMn_yO₂ (NCM) into NCM-Ir-120, which demonstrated superior performance in both OER electrocatalysis and lithium‑oxygen battery applications. The decoration of the NCM surface with Ir nanoparticles induces interfacial charge reorganization, which effectively tunes the oxidation states of the transition metal and enhances the site reactivity. Electrochemical delithiation further increases the density of Li/O vacancies in NCM-Ir-120, optimizes its adsorption energy for LiO₂ and Li₂O₂, and diminishes the reaction energy barrier for the lithium‑oxygen battery. As a lithium‑oxygen battery cathode, it achieved a substantial discharge capacity of 14,441 mAh g⁻¹ along with a low charge plateau at 3.55 V, while maintained excellent cycling stability over 42 consecutive cycles. Even after 115 cycles at 1000 mA g⁻¹, it retains its discharge capability. In addition, the NCM-Ir-120 catalyst demonstrated exceptional electrocatalytic OER activity, achieved a lower overpotential of 328 mV at 10 mA cm⁻² compared to pristine NCM (470 mV) and NCM-Ir (369 mV). This study effectively demonstrates the significant potential of interface engineering and defect design in both lithium-ion cathode material recycling and efficient catalyst utilization.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01899"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic triple-engineering of biodegradable PLA-based systems: Enhanced toughness, thermostability and degradation performance","authors":"Zheng Xu ,&nbsp;Lingxiao Yu ,&nbsp;Guangxu Gao ,&nbsp;Ying Jing ,&nbsp;Weihan Chi ,&nbsp;Siying Leng ,&nbsp;Yongchao Li ,&nbsp;Yongsheng Hao ,&nbsp;Yuanxia Wang ,&nbsp;Lixin Song","doi":"10.1016/j.susmat.2026.e01920","DOIUrl":"10.1016/j.susmat.2026.e01920","url":null,"abstract":"<div><div>The development of high-performance biodegradable plastics is crucial for mitigating plastic pollution. Poly(lactic acid) (PLA)/poly(butylene succinate) (PBS) blends are a promising sustainable alternative, but their inherent incompatibility restricts the enhancement of their properties. To solve this problem, this study introduced a reactive compatibilizer, epoxy-functionalized styrene-acrylate copolymer (ESA), to enhance the compatibility and overall performance of PLA/PBS blends. The findings demonstrate that the epoxy groups of ESA undergo ring-opening reactions with the terminal carboxyl groups of both PLA and PBS chains, leading to significantly improved interfacial compatibility. When the ESA content reached 3 wt%, the glass transition temperature difference (ΔT_g) of the PLA/PBS/ESA (PSE) system decreased by 7.42 °C. At this composition, the PSE blends exhibited optimal overall performance. Compared to the neat PLA/PBS blend, the elongation at break and notched impact strength of the PSE blends increased by 2.78 and 1.84 times, respectively, demonstrating significant toughness enhancement. Meanwhile, the thermal stability and hydrophobicity of the PSE blends were further improved: T_5% increased to 331.10 °C, and the water contact angle of the blend film rose to 89.43°. In addition, the optical clarity was improved, as evidenced by a reduction in haze of up to 20%. The incorporation of ESA also significantly accelerated the hydrolytic degradation rate of the PSE blend material, with a degradation rate 2.20 times higher than that of the uncompatibilized PLA/PBS blend. In summary, this study presents an efficient compatibilization strategy that significantly enhances the compatibility and overall performance of the PLA/PBS blend system by employing only a small quantity of compatibilizer. This approach not only offers a green and sustainable solution for developing advanced biodegradable materials but also contributes substantially to ongoing progress within the field of sustainable polymer research.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01920"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Granular organic fertilizers from livestock waste via integrated UF-RO and granulation with soil performance evaluation","authors":"Thais Girardi Carpanez ,&nbsp;Livia M.C. Castro ,&nbsp;Bruna L. Moreira ,&nbsp;Julia B.L.S. Carneiro ,&nbsp;Eduarda V.S. Gomes ,&nbsp;Fernanda R.C. Damasceno ,&nbsp;Marcelo H. Otenio ,&nbsp;Jonathas B.G. Silva ,&nbsp;Julio C. Balarini ,&nbsp;Miriam C.S. Amaral ,&nbsp;Victor Rezende Moreira","doi":"10.1016/j.susmat.2026.e01908","DOIUrl":"10.1016/j.susmat.2026.e01908","url":null,"abstract":"<div><div>The production of granular organic fertilizers from dairy farming waste (cattle manure and dairy cattle wastewater) was evaluated. The wastewater was pretreated using ultrafiltration (UF) integrated to reverse osmosis (RO) to concentrate nutrients (nitrogen, phosphorus, and potassium) and to recover water, improving the sustainability of the process. The concentrated streams were incorporated into solid residues during the granulation process to produce granular fertilizers. The organic fertilizers were evaluated according to their nutrient release potential via soil column leaching tests, soil fertilization potential, as well as environmental (avoidance tests and greenhouse gas emission) and economic perspectives related to their uses. The increase in nutrient content in fertilizers enhances the feasibility of using these materials, as it decreases the required quantity for application and transport. The use of fertilizers formulated from UF concentrate contributes to a greater increase in organic matter in the soil, making them particularly suitable as soil conditioners. On the other hand, fertilizers produced from RO concentrate act primarily as nutrient sources, meeting the immediate needs of plants. Column leaching tests indicated that granular organic fertilizers enhanced nutrient retention in the upper soil layer (0–10 cm), limiting nutrient losses to deeper layers. Compared with incineration, soil application resulted in 32-fold lower GHG emissions (CO₂ and N₂O), corresponding to an approximate 97% reduction. Granular fertilizers also exhibited lower fertilization costs (US$0.26–0.45/ha), with ROc-based formulations being the most economical. Overall, the results demonstrate the technical, environmental, and economic feasibility of producing granular fertilizers from dairy cattle residues, supporting circular economy principles.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01908"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced energy storage and conversion potentials induced by interfacial charge redistribution in ladder-like NiCo2S4/MoS2 heterointerface","authors":"Nwaji Njemuwa ,&nbsp;Boka Fikadu ,&nbsp;Marianna Gniadek ,&nbsp;Hyojin Kang ,&nbsp;Kamil Sobczak ,&nbsp;Sohrab Asgaran ,&nbsp;Magdalena Osial ,&nbsp;Agata Roszkiewicz ,&nbsp;Jaebeom Lee ,&nbsp;Michael Giersig","doi":"10.1016/j.susmat.2025.e01806","DOIUrl":"10.1016/j.susmat.2025.e01806","url":null,"abstract":"<div><div>A promising approach to catalysis in various electrochemical applications is engineering of heterostructures with enhanced active sites and interfacial electron transfer processes. In this study, conductive NiCo₂S₄ was interfaced with layered MoS₂ as bifunctional electrode material for asymmetric supercapacitors and hydrogen generation through water splitting. The creation of opposite charges within the heterostructure components facilitates the adsorption of OH⁻ and H⁺ ions, thereby boosting the bifunctional potentials. The constructed NiCo₂S₄/MoS₂ electrode showed excellent specific capacitance of 1488.9 F g⁻¹ at 1.0 A g⁻¹ current density and capacity retention of 93 % after 30-fold rise in current density. The asymmetric supercapacitor exhibits superior energy density of 63 Wh kg⁻¹ at power density 7.56 kW kg⁻¹ compared to similar electrode materials reported in literature. The hydrogen evolution performance of the electrode materials in alkaline media produced a low overpotential (79.95 mV at 10 mA cm⁻²) and small Tafel slope (59 mV dec⁻¹) that are comparable to the state-of-the-art Pt/C. Density functional theory calculation reveals a fast electron transfer from NiCo₂S₄ to MoS₂ leading to creation of positively charged surface and negatively charged surface at NiCo₂S₄ and MoS₂ respectively that facilitate the adsorption of OH⁻ and H⁺ ions. This study offered a promising high active and stable non‑platinum advanced electrode bifunctional catalyst for energy storage supercapacitor and energy conversion hydrogen generation.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"47 ","pages":"Article e01806"},"PeriodicalIF":9.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145748111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}