Advanced Sustainable Systems最新文献_第7页

High Output, Biocompatible, Fully Flexible Fiber-Based Magneto-Mechano-Electric Generator for Standalone-Powered Electronics

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-23 DOI: 10.1002/adsu.202400548

Nayak Ram, Durga Prasad Pabba, J. Kaarthik, Geon-Tae Hwang, Karthik Vaduganathan, Annapureddy Venkateswarlu

{"title":"High Output, Biocompatible, Fully Flexible Fiber-Based Magneto-Mechano-Electric Generator for Standalone-Powered Electronics","authors":"Nayak Ram, Durga Prasad Pabba, J. Kaarthik, Geon-Tae Hwang, Karthik Vaduganathan, Annapureddy Venkateswarlu","doi":"10.1002/adsu.202400548","DOIUrl":"https://doi.org/10.1002/adsu.202400548","url":null,"abstract":"Harvesting magnetic noise fields around power cables emerges as an attractive approach due to its potential as a renewable and ubiquitous energy source for powering wireless sensor networks (WSNs) in IoT applications, miniature electronics, and implantable medical devices. Flexible polymer-based magneto-mechano-electric (MME) generators gain attention for their effectiveness in magnetic energy harvesting owing to their durability and flexibility. In this study, a lead-free, flexible MME generator is developed by using Polyvinylidene fluoride (PVDF)-Aluminium nitride (AlN)-nanofiber composites fabricated via electrospinning with different AlN compositions and integrated with a magnetostrictive Metglas layer that offers self-bias characteristics. The MME generator is modeled using COMSOL Multiphysics to analyze the magnetic flux density distribution over the Metglas surface and the piezoelectric effect of the nanofiber composites, with the simulation results aligning well with the experimental data. The optimized, flexible MME generator, incorporating 15 wt.% of AlN in the PVDF/Metglas composite, achieves an open-circuit voltage of 18.5 V and a power density of 0.93 mW-cm−3 when exposed to an Alternating Current (AC) magnetic noise field of 6 Oe at a resonance frequency of 50 Hz. The generated power is sufficient to operate LEDs and sensor. This newly developed lead-free, flexible MME generator shows significant promise for advanced applications in self-powered WSNs.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118556","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}

引用次数: 0

Strong Electron Coupling Effect of Prussian Blue Analogs Derived Ultrathin Nitrogen-Doped Carbon Wrapped Fe-CoP for Enhanced Wide Spectrum Photocatalytic H2 Evolution 普鲁士蓝类似物衍生的超薄氮掺杂碳包裹Fe-CoP对增强广谱光催化析氢的强电子耦合效应

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-23 DOI: 10.1002/adsu.202400639

Jiejie Jing, Xue Wang, Xuqiang Hao, Zhiliang Jin

{"title":"Strong Electron Coupling Effect of Prussian Blue Analogs Derived Ultrathin Nitrogen-Doped Carbon Wrapped Fe-CoP for Enhanced Wide Spectrum Photocatalytic H2 Evolution","authors":"Jiejie Jing, Xue Wang, Xuqiang Hao, Zhiliang Jin","doi":"10.1002/adsu.202400639","DOIUrl":"https://doi.org/10.1002/adsu.202400639","url":null,"abstract":"With the advantages of large specific surface area and high porosity of general metal-organic frame materials, russian blue analogs have broad application prospects in catalysis. In this work, a series of ultra-thin N-doped carbon coated Fe-CoP (Fe-CoP@NC) are prepared by phosphating Fe-Co-Co Prussian blue analogs (Fe-Co-Co PBA) in different degrees for the broad-spectrum photocatalytic hydrogen evolution. The results show that Fe-CoP@NC-3 has the highest photocatalytic hydrogen production rate of 16.6 mmol h−1 g−1, which is 83 times greater than that of Fe-Co-Co PBA. The excellent stability of Fe-CoP@NC-3 is proved by cyclic experiments. The outstanding photocatalytic H2 production activity of Fe-CoP@NC-3 can be ascribed to the strong electron coupling effect between Fe-CoP and N-doped carbon layer. The photogenerated electrons of Fe-CoP are transferred to the N-doped carbon layer, which is electron transport mediator accelerating the electron transfer and synergetic improving the hydrogen evolution efficiency. This work provides an effective strategy for designing an ultra-thin N-doped carbon layer coated phosphide photocatalyst with strong electron coupling effect.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862209","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}

引用次数: 0

Net Zero Energy-Ready Buildings: A Canadian Construction Perspective and Evaluation 净零能耗建筑：加拿大建筑视角与评价

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-23 DOI: 10.1002/adsu.202400385

Noushad Ahamed Chittoor Mohammed, Kuljeet Singh Grewal, Misbaudeen Aderemi Adesanya, Sudipta Debnath, Aitazaz A. Farooque, Gurpreet Singh Selopal

{"title":"Net Zero Energy-Ready Buildings: A Canadian Construction Perspective and Evaluation","authors":"Noushad Ahamed Chittoor Mohammed, Kuljeet Singh Grewal, Misbaudeen Aderemi Adesanya, Sudipta Debnath, Aitazaz A. Farooque, Gurpreet Singh Selopal","doi":"10.1002/adsu.202400385","DOIUrl":"https://doi.org/10.1002/adsu.202400385","url":null,"abstract":"To attain net zero energy-ready building (NZErB) status, various research efforts have focused on identifying potential strategies and creating stringent code compliances for builders. This review presents a comparative assessment of Canadian newly constructed, retrofitted, and potential retrofit buildings from the mid-1900s to 1990, all aiming for NZErB status. 22 case studies from climate zones 5, 6, and 7a are evaluated, including 12 new constructions and 4 retrofitted, and 6 potential retrofit buildings. A life cycle assessment (LCA) analysis is conducted to understand the environmental impacts of different insulation materials. Additionally, this review highlights retrofitted buildings measures toward climate resilience, challenges inretrofitting, andstrategies for achieving high-quality retrofits. The work concluded that 83.3% of new buildings achieved level 5 in thermal energy demand intensity (TEDI), while 70% of completed and potential retrofits reached level 5 in mechanical energy usage intensity (MEUI). Cellulose insulation showed the lowest global warming potential (GWP) at 12.07 kg CO₂-e·m−3. By comparing the performance of new constructions with completed and potential retrofits, this review provides valuable insights into the feasibility and effectiveness of retrofitting older buildings to attain net zero energy readiness.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400385","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Carboxylic Acid-Functionalized Poly(Butylene Adipate-co-Terephthalate) for Recyclable and Biodegradable Zero-Waste Paper Packaging

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-23 DOI: 10.1002/adsu.202400621

Hazem M. Elkholy, Syeda Shamila Hamdani, Manal O. Alghaysh, Ian Wyman, Emily Duncan, Yun Wang, Kecheng Li, Muhammad Rabnawaz

{"title":"Design of Carboxylic Acid-Functionalized Poly(Butylene Adipate-co-Terephthalate) for Recyclable and Biodegradable Zero-Waste Paper Packaging","authors":"Hazem M. Elkholy, Syeda Shamila Hamdani, Manal O. Alghaysh, Ian Wyman, Emily Duncan, Yun Wang, Kecheng Li, Muhammad Rabnawaz","doi":"10.1002/adsu.202400621","DOIUrl":"https://doi.org/10.1002/adsu.202400621","url":null,"abstract":"Demand for water- and oil-repellent-coated paper as an alternative to plastics is growing, but the challenge is that coated paper lacks concurrent recyclability and biodegradability. Reported herein is a novel carboxylic acid-functionalized poly(butylene adipate-co-terephthalate) (CPBAT) copolymer investigated for recyclable and repulpable water-borne paper coatings. The CPBAT synthesized here is characterized by spectroscopic methods. Paper coated with waterborne CPBAT exhibited excellent water, oil, moisture, and gas barrier properties suitable for packaging applications. The recyclability and repulpability of the CPBAT-coated paper are successfully validated via certified TAPPI methods. This work demonstrates the first successful preparation of coated paper that is per- and polyfluoroalkyl substances (PFAS)-free, recyclable, and biodegradable, with significant benefits for the environment and human health.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400621","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Apple Tree Root-Derived Biochar/Iron Oxide Triphasic Nanocomposite for Wastewater Treatment and Microwave Absorption

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-23 DOI: 10.1002/adsu.202400549

Mahsa Mahmoodi, Bagher Aslibeiki, Sagnik Ghosh, Leila Hasani, Sawssen Slimani, Luca Vattuone, Davide Peddis, Tapati Sarkar

{"title":"Apple Tree Root-Derived Biochar/Iron Oxide Triphasic Nanocomposite for Wastewater Treatment and Microwave Absorption","authors":"Mahsa Mahmoodi, Bagher Aslibeiki, Sagnik Ghosh, Leila Hasani, Sawssen Slimani, Luca Vattuone, Davide Peddis, Tapati Sarkar","doi":"10.1002/adsu.202400549","DOIUrl":"https://doi.org/10.1002/adsu.202400549","url":null,"abstract":"In this work, two major sources of pollution: (1) Water pollution due to heavy metals, and (2) Electromagnetic wave (EMW) pollution, often regarded as the fourth category of pollution (after air, water, and soil pollution) are addressed. A unique bio-based triphasic nanocomposite (Fe3O4/α-Fe2O3/carbon) is synthesized and its superior properties are demonstrated to address both types of environmental pollution. The nanocomposite, derived from lightweight apple tree roots, is used for Pb (II) ion removal from aqueous solutions via adsorption and magnetic separation. The biomass-derived highly porous biochar decorated with iron-oxide showed adsorption efficiency of nearly 100% and corresponding capacity of 149 mg.g−1 under optimal conditions for initial Pb (II) concentration of 50 mg.L−1. Furthermore, a remarkable adsorption capacity of 731 mg.g−1 is achieved using lower amount of the adsorbent for a slightly lower efficiency (97%). In addition, the mesoporous composite showed excellent EMW absorption efficiency with effective absorption bandwidth of 7.8 GHz and reflection loss of −61.7 dB, arising from very good impedance matching, and high dielectric and magnetic losses. This work establishes the multifunctional properties of the synthesized composite, and addresses the UN Sustainable Development Goal (SDG) 6 (Clean water and sanitation) and SDG 13 (Climate action, including pollution management).","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400549","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Progress of Transition Metal-Based Oxide Composite Electrode Materials in Supercapacitor

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-23 DOI: 10.1002/adsu.202400578

Chuanyin Xiong, Yadong Su

引用次数: 0

The Efficient Coupling between MgAlTi Layered Double Hydroxides and Graphitic Carbon Nitride Boosts Vis Light-Assisted Photocatalytic NOx Removal MgAlTi层状双氢氧化物与石墨氮化碳之间的有效耦合促进了可见光辅助光催化去除NOx

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-19 DOI: 10.1002/adsu.202400496

Laura Marín, Mattia Benedet, Chiara Maccato, Gian Andrea Rizzi, Oleg I. Lebedev, Ivana Pavlovic, Luis Sánchez, Davide Barreca

{"title":"The Efficient Coupling between MgAlTi Layered Double Hydroxides and Graphitic Carbon Nitride Boosts Vis Light-Assisted Photocatalytic NOx Removal","authors":"Laura Marín, Mattia Benedet, Chiara Maccato, Gian Andrea Rizzi, Oleg I. Lebedev, Ivana Pavlovic, Luis Sánchez, Davide Barreca","doi":"10.1002/adsu.202400496","DOIUrl":"https://doi.org/10.1002/adsu.202400496","url":null,"abstract":"Atmospheric pollution has been recognized as a primary global emergency, especially in large cities and industrial areas. Among the most common harmful pollutants, nitrogen oxides (NOx) are responsible for a plethora of adverse effects, and their effective elimination from air has become an imperative task. In this regard, photocatalysis stands as an attractive technology for NOx degradation, provided that low-cost and efficient visible -light photocatalysts are developed. In this regard, the construction of heterojunctions between energy band-matched semiconductors is an effective strategy to boost the ultimate material photoactivity. In the present study, green heterocomposites based on MgAlTi layered double hydroxides (LDHs) and graphitic carbon nitride (gCN) are prepared using an amenable and cost-effective route. A proper modulation of the system characteristics, as demonstrated by a comprehensive investigation, enabled to obtain very attractive DeNOx performances thanks to the efficient construction of MgAlTi/gCN heterojunctions with tailored features. The formation of the target heterocomposites significantly enhances the visible light photoactivity of the pristine LDH, boosting nitrogen monoxide transformation to nitrites/nitrates with a remarkable recycling stability. Overall, the presently reported results open the door to a profitable system exploitation for air purification under real-world conditions, with considerable impact on both human wellbeing and environmental protection.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400496","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heterovalent State and Oxygen Vacancy Defect Structure-Associated V/S Co-Doped SnO2 for Catalytic Reduction of Organic and Cr6+ Pollutants in the Dark 异价态和氧空位缺陷结构相关的 V/S 共掺杂二氧化锡在黑暗中催化还原有机物和 Cr6+ 污染物

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-18 DOI: 10.1002/adsu.202400429

Baoqian Yang, Xinru Wu, Zhengjie Su, Benjamin Kunkadma Insua, Pengkun Zhang, Dong-Hau Kuo, Lulu Gao, Xinde Bao, Dongfang Lu, Jinguo Lin, Xiaoyun Chen

{"title":"Heterovalent State and Oxygen Vacancy Defect Structure-Associated V/S Co-Doped SnO2 for Catalytic Reduction of Organic and Cr6+ Pollutants in the Dark","authors":"Baoqian Yang, Xinru Wu, Zhengjie Su, Benjamin Kunkadma Insua, Pengkun Zhang, Dong-Hau Kuo, Lulu Gao, Xinde Bao, Dongfang Lu, Jinguo Lin, Xiaoyun Chen","doi":"10.1002/adsu.202400429","DOIUrl":"10.1002/adsu.202400429","url":null,"abstract":"V/S co-doped SnO2 bimetal sulfur-oxides catalysts labeled as (Sn,V)1-x(S,O)2-y or (SnVSO) with heterovalent state and oxygen vacancy defect are prepared via a green and facile method. The presence of SnVSO in the heterovalent states of Sn4+/Sn2+ and V5+/V4+ facilitates the rapid transfer of the electrons. It improves the electronic charge lifetime, accelerating the efficiency of the catalytic reduction of pollutants. The V/S co-doped SnO2 regulates the bandgap energy structure. The hydrazine adjusts the heterovalent metal states to reduce Sn4+ to Sn2+ and V5+ to V4+. Also, it introduces oxygen vacancies to SnVSO to maintain the charge equilibrium and increase the active surface reactive sites, which enhance the catalytic activity. The SnVSO-3 prepared with 0.4 mL hydrazine exhibits excellent catalytic activity, which wholly reduces 20 ppm of 100 mL methyl orange (MO), rhodamine B (RhB), methylene blue (MB), hexavalent chromium (Cr6+), and 4-nitrophenol (4-NP) within 6 min. In addition, the SnVSO-3 also has good stability after repeated 6 runs with a reduction efficiency of 96.8%. Therefore, the V/S co-doped SnO2 sulfur oxide catalysts have a promising potential for reducing Cr6+ and organic pollutants.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266086","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}

引用次数: 0

Assessing the Stability and Photocatalytic Efficiency of a Biodegradable PLA-TiO2 Membrane for Air Purification 评估用于空气净化的可生物降解聚乳酸-二氧化钛膜的稳定性和光催化效率

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-18 DOI: 10.1002/adsu.202400594

Hadis Mortazavi Milani, Brent Van Neste, Ewoud Cosaert, Dirk Poelman

{"title":"Assessing the Stability and Photocatalytic Efficiency of a Biodegradable PLA-TiO2 Membrane for Air Purification","authors":"Hadis Mortazavi Milani, Brent Van Neste, Ewoud Cosaert, Dirk Poelman","doi":"10.1002/adsu.202400594","DOIUrl":"10.1002/adsu.202400594","url":null,"abstract":"The potential of a biodegradable polylactic acid (PLA)-TiO2 membrane for air purification is investigated, utilizing the environmentally friendly solvent Cyrene. Through the integration of TiO2 nanoparticles within a PLA matrix, the membrane is used to degrade ethanol as a model volatile organic compound (VOC) under UV light. Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Analysis (EDX), and UV–vis spectrophotometry confirm the porous structure of the membrane, the even distribution of TiO2, and its effective band gap of 3.06 eV, respectively. Ethanol adsorption is best described by the Langmuir isotherm model, suggesting monolayer coverage on a homogeneous surface. Photocatalytic tests demonstrate that the membrane decomposes ethanol (6800 ppm) within 14 min under UV light, generating acetaldehyde, acetic acid, formaldehyde, and formic acid as intermediates, and ultimately producing CO2 and water. Reusability tests indicate a decrease in decomposition time over successive cycles due to increased TiO2 exposure from the gradual degradation of PLA. However, this degradation poses challenges for continuous use, compromising the membrane's long-term durability.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266085","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}

引用次数: 0

A Lithium-Oxygen Battery Exploiting Carbon Nanotubes, Graphene and Gold Catalyst 利用碳纳米管、石墨烯和金催化剂的锂氧电池

IF 6.5 3区材料科学

Advanced Sustainable Systems Pub Date : 2024-09-18 DOI: 10.1002/adsu.202400381

Stanislav Levchenko, Giacomo Valente, Jusef Hassoun

{"title":"A Lithium-Oxygen Battery Exploiting Carbon Nanotubes, Graphene and Gold Catalyst","authors":"Stanislav Levchenko, Giacomo Valente, Jusef Hassoun","doi":"10.1002/adsu.202400381","DOIUrl":"10.1002/adsu.202400381","url":null,"abstract":"Lithium-oxygen (Li-O2) battery is considered a high-energy alternative to Li-ion one due its characteristic electrochemical conversion process, with the additional advantage of lower cost and environmental impact. However, this emerging battery still requires an enhancement of stability and lifespan to allow its use as a practical energy storage system. In this work we investigate an electrode material benefitting of multiwalled carbon nanotubes (MWCNTs), few layer graphene (FLG), and gold nano-powder catalyst to improve the Li-O2 battery performances in terms of energy efficiency, cycle life and stability. Morphological, structural, and electrochemical tests indicate that the composite electrode can actually boost the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), and enhance the Li-O2 process reversibility, with a capacity of 1000 mAh g−1 over 70 cycles. On the other hand, the tests reveal the role of the gold in decreasing the polarization and increasing the cell life. Therefore, the results suggest the combination of carbons with various morphologies as a suitable architecture for hosting the Li-O2 reaction products and allowing their reversible reaction. On the other hand, the results highlight the necessity for a better tuning the noble metal characteristics to further enhance the cell performances.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 12","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400381","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0