Sustainable Materials and Technologies最新文献

{"title":"Direct recycling of anode active material from Li-ion batteries using TiNb2O7 anode","authors":"Asato Kondo,&nbsp;Taro Fukaya,&nbsp;Ryosuke Yagi,&nbsp;Keigo Hoshina,&nbsp;Yasuhiro Harada,&nbsp;Norio Takami","doi":"10.1016/j.susmat.2024.e01140","DOIUrl":"10.1016/j.susmat.2024.e01140","url":null,"abstract":"<div><div>As the demand for large lithium-ion batteries (LIBs) for automotive and other applications rapidly grows, recycling of electrode materials has become essential owing to the large amount of waste material generated by battery manufacturing (e.g., battery scrap) and end-of-life (EOL) batteries. While there have been many studies on recycling of cathode materials, we propose a direct recycling process for anode material using TiNb₂O₇ (TNO) as the active material, as it offers high capacity and long life. Calcination was introduced to separate the anode active material from the current-collecting foil, and a regeneration method was investigated for TNO anodes from scrap and EOL battery waste. After calcination, the active material can be easily separated from the aluminum current-collecting foil owing to the binder disappearing. The structure of the active material was investigated using X-ray diffraction and scanning electron microscopy. TNO active material recycled from scrap and EOL was found to maintain the structure of virgin material. A cell was fabricated using recycled TNO and cell performance was evaluated. The cell capacity and rate capacity were found to be almost equivalent to those of virgin material. In terms of the carbon footprints of products (CFP), CO₂ emissions during the recycling process were compared between recycled material and virgin material, and it was found that CO₂ emissions were reduced to 0.7-CO₂eq/kg for scrap material and 3.8-CO₂eq/kg for EOL waste material, compared with 4.8-CO₂eq/kg for virgin material. Thus, the feasibility of low CO₂ emissions during TNO anode direct recycling was confirmed in principle. A simple and low CO₂ emission recycling loop can thus be constructed by employing a stable TNO active material structure and direct-recycling process with calcination.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01140"},"PeriodicalIF":8.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442027","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":"Renewable and hydrophilic carbon quantum dots derived from human hair as the filler in Nafion composite membrane for vanadium redox flow battery application","authors":"Dasom Jeong ,&nbsp;Seong Cheon Kim ,&nbsp;Min Gu Kang ,&nbsp;Sung Nam Lim ,&nbsp;Ju Young Woo ,&nbsp;Haejin Hwang ,&nbsp;Siyoung Q. Choi ,&nbsp;Jeasung Park","doi":"10.1016/j.susmat.2024.e01141","DOIUrl":"10.1016/j.susmat.2024.e01141","url":null,"abstract":"<div><div>Renewable and environmentally benign hydrophilic carbon quantum dots (CQDs) were synthesized using a hydrothermal method. Subsequently, composite membranes of Nafion/CQDs, demonstrating outstanding performance metrics for vanadium redox flow batteries (VRFBs), were developed. Employing a straightforward solution-casting technique, these membranes exhibited superior proton conductivity and reduced vanadium ion permeability. Tested at an elevated current density of 120 mA/cm², the single cell VRFB integrated with the optimized Nafion/CQDs composite membrane outperformed its commercial counterparts, achieving a high coulombic efficiency of approximately 96.13 % and an energy efficiency of nearly 85.46 %. Moreover, it demonstrated significant cycle life, retaining about 17.1 % of its capacity after 100 cycles, compared to 27.2 % capacity retention for the N-recast membrane over the same period. These results position the Nafion/CQDs composite membrane as a formidable contender in the VRFB domain, emphasizing its potential for broader commercial applications.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01141"},"PeriodicalIF":8.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433294","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":"Wettability/anti-icing properties of hierarchical Micro/nanostructured copper surface prepared by Micro milling and chemical etching","authors":"Ruijiang Sun ,&nbsp;Bo Hou ,&nbsp;Junjie Huang ,&nbsp;Xiguang Li ,&nbsp;Chang Liu ,&nbsp;Mingjun Chen ,&nbsp;Chunya Wu","doi":"10.1016/j.susmat.2024.e01136","DOIUrl":"10.1016/j.susmat.2024.e01136","url":null,"abstract":"<div><div>Ice accumulation on the metallic surface usually results in seriously economic losses, resource wastes and even hazard accidents. Superhydrophobic surfaces (SHSs) are recognized as one of the most promising candidates for water repellence and anti-icing, offering both environmental and economic advantages over the traditional methods. The ordered microstructure arrays with controllable parameters play an essential role in mechanism analysis, rational design and reproducible construction of SHSs. However, the efficient fabrication of ordered microarrays on metal substrates with high resolution and high accuracy is still fraught with significant challenges. Here, a multilevel micro/nano surface with rectangular micropillars was fabricated on copper substrate by the integration of micro milling and chemical etching, which exhibits superior superhydrophobicity with water contact angle of 171.1 ± 1.5° and sliding angle of 2.2 ± 0.7°. The developed deburring scheme makes an outstanding contribution to the in-situ removal of milling burrs generated on the top of micropillars. The variation in surface wettability with microarray geometry and etching conditions indicates that a favorable surface morphology is crucial for improving the water repellency of the surface. The results of the durability experiment and the self-cleaning test demonstrate the robust comprehensive stability of the prepared SHSs against moisture, high temperature and mechanical wear, as well as the superior fouling resistance against solid and liquid contaminants, which is mainly ascribed to the hierarchical micro/nanostructures. Moreover, the present micro/nanostructures are also demonstrated to be capable of enhancing the delayed icing performance of the copper surface, with the freezing time of a 5 μL water droplet being 519.86 ± 13.53 s. Meanwhile, the superhydrophobic copper surfaces exhibit remarkable anti-icing behavior against saline solutions, as evidenced by the freezing time of 1078.42 ± 31.24 s for a 5 μL NaCl droplet. This work provides a sustainable and high-precision approach for the fabrication of metal-based SHSs, expecting to advance the theoretical research and industrial applications of anti-icing functional surfaces.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01136"},"PeriodicalIF":8.6,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418585","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":"Surface-controlled deposition of discharge products in NaO2 batteries using a defect-rich graphene cathode","authors":"M. Enterría ,&nbsp;L. Medinilla ,&nbsp;S.N. Faisal ,&nbsp;Y. Zhang ,&nbsp;J.M. López del Amo ,&nbsp;I. Ruiz De Larramendi ,&nbsp;L. Lezama ,&nbsp;D.L. Officer ,&nbsp;G.G. Wallace ,&nbsp;N. Ortiz-Vitoriano","doi":"10.1016/j.susmat.2024.e01135","DOIUrl":"10.1016/j.susmat.2024.e01135","url":null,"abstract":"<div><div>Sodium‑oxygen (Na<img>O₂) batteries are promising high-capacity devices for future energy storage, replacing the unsustainable dependence on fossil fuels. These batteries convert molecular oxygen into sodium superoxide (NaO₂) which is deposited during discharge at the cathode. It has been demonstrated that the morphology of the discharged NaO₂ is critical for battery performance, as the insulating nature of these solid products leads to premature cell death by passivating the cathode surface at high discharge capacities. These constraints seriously affect the battery rechargeability by hindering the oxidation of NaO₂ during charge. In this context, the size and distribution of the discharged solid particles is crucial for the implementation of these batteries. Here, we present a template-assisted electro crystallization of NaO₂ in Na<img>O₂ batteries by using a graphene cathode enriched with atomic defects. The high free energy of such atomic defects induces the nucleation of few-micron sized NaO₂ cubes strategically localized at dispersed points of the surface. The high dispersion of small superoxide particles, by a surface-controlled crystallization, increases the cyclability of the battery at high discharge capacities, which is the major bottleneck in metal-air battery technology.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01135"},"PeriodicalIF":8.6,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418583","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":"Limonene biosolvent-based non-aqueous dyeing medium for salt-free and alkali-free rhamnolipid (RL) biosurfactant reverse micellar dyeing of cotton fabric with reactive dyes","authors":"Yiu Lun Alan Tang,&nbsp;Jiali Yu,&nbsp;Cheng Hao Lee,&nbsp;Yanming Wang,&nbsp;Chi-Wai Kan","doi":"10.1016/j.susmat.2024.e01137","DOIUrl":"10.1016/j.susmat.2024.e01137","url":null,"abstract":"<div><div>The feasibility of using different forms of limonene biosolvents as dyeing medium in rhamnolipid (RL) biosurfactant-based reverse micellar dyeing system for cotton fabrics is investigated, with different dyeing profiles. Experimental results reveal that limonene-dyed fabrics can achieve generally higher colour yield than water-dyed fabrics while samples dyed by one-step dyeing method could obtain higher colour yield, but poorer relative unlevelness index (RUI) values when compared with samples dyed by two-step method. The CIE <em>L*a*b*</em> value and reflectance of water-dyed and limonene-dyed samples were examined. The pH value of aqueous and non-aqueous dye liquor was measured. SEM images of limonene-dyed cotton fabrics and TEM images of reverse micelle morphology were evaluated. Washing and crocking fastness of the dyed samples were also assessed. The resulting evidence validate that limonene is feasible for reverse micellar reactive dyeing of cotton fabric with the use of RL biosurfactant and it can be one of the alternative solvents, making the dyeing process more natural, more biodegradable and environmentally more sustainable.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01137"},"PeriodicalIF":8.6,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418584","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":"Design and characteristic analysis of a high-performance deformable piezoelectric wind energy harvester based on coupled vibrations","authors":"Zemeng Yang ,&nbsp;Yucun Zhang ,&nbsp;Zhe Li ,&nbsp;Shijie Lin ,&nbsp;Zhonghua Zhang ,&nbsp;Linfei Fu ,&nbsp;Junwu Kan","doi":"10.1016/j.susmat.2024.e01134","DOIUrl":"10.1016/j.susmat.2024.e01134","url":null,"abstract":"<div><div>The current vortex-induced vibration piezoelectric wind energy harvesters have a narrow operating wind speed range, while galloping piezoelectric energy harvesters are at risk of damage from excessive amplitude at high wind speeds, a novel high-performance deformable piezoelectric wind energy harvester based on coupled vibrations (DPWEH) has been proposed. The alteration of the compound blunt body shape effectively modifies the shedding characteristics and intensity of vortices, subsequently influencing the vibration mode and output voltage of the system. The vibration mode transitions from galloping to coupled vibration, ultimately to vortex-induced vibration. The rigid wing and long elastic beam suppress galloping at high wind speeds. A thinner flexible wing can extend the duration of coupled vibration. A smaller wing width ratio and larger Y-type base wing width are beneficial for increasing the output voltage. By optimizing the parameters of the compound blunt body, the onset wind speed can be effectively reduced, the effective wind speed bandwidth can be expanded, and the DPWEH can undergo coupled vibration for an extended duration while stably generating electricity. The peak output power is 0.36 mW at a load of 150 kΩ. Moreover, the energy harvester demonstrates the prolonged power generation capability of signal transmitters and 100 LED lights.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01134"},"PeriodicalIF":8.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418586","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":"Antimicrobial keratin-based sustainable food packaging films reinforced with citric acid-modified cellulose nanocrystals","authors":"Ye Zhang ,&nbsp;Huanhuan Luo ,&nbsp;Yingying Li ,&nbsp;Zhiqi Li ,&nbsp;Yutong Wen ,&nbsp;Zhen Wang ,&nbsp;Bing Fan ,&nbsp;Qiaoyu Li ,&nbsp;Ying Li","doi":"10.1016/j.susmat.2024.e01133","DOIUrl":"10.1016/j.susmat.2024.e01133","url":null,"abstract":"<div><div>Sustainable food packaging films play a crucial role in maintaining the freshness and quality of the food, while prioritizing environmental sustainability. In this paper, a transparent film with antibacterial properties and excellent tensile property was prepared utilizing keratin extracted from waste chicken feathers, combined with citric acid-modified cellulose nanocrystals (CNC-CA). The film exhibited an elongation at break of 209%, highlighting its substantial potential for food packaging applications and addressing the brittleness problem associated with keratin-based films. Microstructural analysis revealed that, the network formed by keratin and CNC-CA with the presence of extensive sliding hydrogen bonds and the transformation of keratin's secondary structure from α-helix to β-sheet were pivotal in enhancing the tensile strength of the Keratin/CNC-CA film. The citric acid not only act as crosslinkers, but also contribute to the sustained antimicrobial and antioxidant capabilities of the prepared Keratin/CNC-CA film, eliminating the need for adding chemically synthesized antimicrobial agents. The high stretchability of the Keratin/CNC-CA film facilitates the secure packaging of loose food items, effectively preserving freshness by minimizing air exposure, and could be degraded rapidly upon disposal, converting into organic fertilizer in the soil, and thereby mitigating the environmental problems induced by conventional plastic packaging films. This work highlights the great potential of waste biomass-derived material keratin in preparation of functional films with antibacterial property, offering promising application prospects in food packaging contexts.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01133"},"PeriodicalIF":8.6,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359687","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":"Dragonfly eye microstructure-inspired antifouling durable superhydrophilic surfaces for emulsion separation and dye degradation","authors":"Yuyan Guo ,&nbsp;Zhiguang Guo","doi":"10.1016/j.susmat.2024.e01128","DOIUrl":"10.1016/j.susmat.2024.e01128","url":null,"abstract":"","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01128"},"PeriodicalIF":8.6,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359688","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":"Transforming temperature effects on TiO2/iron oxide composite derived from copper slag as a photocatalyst for glucose conversion","authors":"Jirawat Trakulmututa ,&nbsp;Chitiphon Chuaicham ,&nbsp;Assadawoot Srikhaow ,&nbsp;Keiko Sasaki","doi":"10.1016/j.susmat.2024.e01129","DOIUrl":"10.1016/j.susmat.2024.e01129","url":null,"abstract":"<div><div>Amorphous copper slag (CS), a by-product of the matte smelting and refining processes in copper smelting, contains approximately 47 % iron. This study explores the potential of using CS as an iron source to create a photocatalyst composite with TiO₂ through calcination at various temperatures (550, 700, 850, and 1000 °C) in order to achieve efficient photocatalytic conversion of glucose to lactic acid under visible light irradiation (λ ≥ 380 nm) at room temperature. All the calcined composites exhibited superior glucose conversion and lactic acid production compared to the uncalcined composite (CT) and pure TiO₂. The composite calcined at 700 °C provided the highest yield and selectivity for lactic acid. This improvement is attributed to the optimal ratio of Ti^(III)/Ti^(IV) and the effective separation of photogenerated electron-hole pairs <em>via</em> the <em>Z</em>-scheme heterojunction in the calcined CT composite. This process contributes to the circular economy by recycling waste materials to produce higher-value-added chemicals from biomass using sustainable energy sources.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01129"},"PeriodicalIF":8.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multiscale framework-based crystal plasticity modeling and texture evolution of the deformation behavior of AISI 304 stainless steel microtubes manufactured through 3D-FBF technology","authors":"Peng Zhao ,&nbsp;Cheng Cheng ,&nbsp;Ali Abd El-Aty ,&nbsp;Jie Tao ,&nbsp;Xunzhong Guo ,&nbsp;Yuting Ji","doi":"10.1016/j.susmat.2024.e01125","DOIUrl":"10.1016/j.susmat.2024.e01125","url":null,"abstract":"<div><div>The grain size often influences the precision and quality of products manufactured by microforming at the microscale. Macroscale finite element modeling (FEM) cannot accurately predict nonuniform deformation and microstructural evolution at the microscale. In addition, the microscale FEM is challenging for forming processes with complex loading boundary conditions. Thus, in this study, a multiscale framework-based CPFEM is proposed to study the deformation behavior of microtubes manufactured through the 3D-FBF process. The acquired results show that significant nonuniform deformation is caused by greater geometric dimensions and smaller grain sizes, which increase the bending radius of microtubes at the macro level. In addition, a larger offset leads to higher flow stress, larger lattice rotation angles, and consequently, a larger bending radius for the microtube, and grain orientation also influences bending deformation, with easily deformable grain orientations leading to greater stress distribution within the grains.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01125"},"PeriodicalIF":8.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418582","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}