EcoMat最新文献

{"title":"Solar-powered mixed-linker metal–organic frameworks for water harvesting from arid air","authors":"Xueli Yan, Fei Xue, Chunyang Zhang, Hao Peng, Jie Huang, Feng Liu, Kejian Lu, Ruizhe Wang, Jinwen Shi, Naixu Li, Wenshuai Chen, Maochang Liu","doi":"10.1002/eom2.12473","DOIUrl":"10.1002/eom2.12473","url":null,"abstract":"<p>Metal–organic frameworks (MOFs) are a class of promising nanomaterials for atmospheric water harvesting (AWH), especially in arid remote areas. However, several challenges are still faced for practical applications because of the dissatisfied water adsorption/desorption properties in terms of the capability, kinetics, and stability. Herein, we report the facile synthesis of a nano-sized octahedral nitrogen-modified MOF-801 that exhibits superior solar-powered AWH performance using a custom-made device, with a state-of-the-art water harvesting ability up to <span></span><math>\u0000 <mrow>\u0000 <mn>4.64</mn>\u0000 <mspace></mspace>\u0000 <msub>\u0000 <mi>L</mi>\u0000 <mrow>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <mi>O</mi>\u0000 </mrow>\u0000 </msub>\u0000 <mspace></mspace>\u0000 <msup>\u0000 <msub>\u0000 <mi>kg</mi>\u0000 <mtext>MOFs</mtext>\u0000 </msub>\u0000 <mrow>\u0000 <mo>−</mo>\u0000 <mn>1</mn>\u0000 </mrow>\u0000 </msup>\u0000 </mrow></math> from air upon 12-h test under a relative humidity (RH) of 30% and simulated sunlight irradiation. The nitrogen-modified MOF-801 with rapid sorption–desorption kinetics, uptakes <span></span><math>\u0000 <mrow>\u0000 <mn>0.29</mn>\u0000 <mspace></mspace>\u0000 <msub>\u0000 <mi>g</mi>\u0000 <mrow>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <mi>O</mi>\u0000 </mrow>\u0000 </msub>\u0000 <mspace></mspace>\u0000 <msup>\u0000 <msub>\u0000 <mi>g</mi>\u0000 <mtext>MOFs</mtext>\u0000 </msub>\u0000 <mrow>\u0000 <mo>-</mo>\u0000 <mn>1</mn>\u0000 </mrow>\u0000 </msup>\u0000 </mrow></math> of water at 30% RH within 30 min and releases 90% of the captured water within 10 min under 1-sun illumination. The success relies on N-doping-induced mixed-linkers in the form of 2,3-diaminobutanedioic acid and fumaric acid in the unique pore structures of the MOFs for rapid and high-capacity water capture. The N-doped MOF-801 with water uptake capacity, fast adsorption kinetics, and cycle stability sheds light on the practical use of MOFs for effective solar-powered water harvesting from droughty air.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12473","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506950","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":"Unlocking fast-charging capabilities of lithium-ion batteries through liquid electrolyte engineering","authors":"Chaeeun Song,&nbsp;Seung Hee Han,&nbsp;Hyeongyu Moon,&nbsp;Nam-Soon Choi","doi":"10.1002/eom2.12476","DOIUrl":"10.1002/eom2.12476","url":null,"abstract":"<p>Global trends toward green energy have empowered the extensive application of high-performance energy storage systems. With the worldwide spread of electric vehicles (EVs), lithium-ion batteries (LIBs) capable of fast-charging have become increasingly important. Nonetheless, state-of-the-art LIBs have failed to satisfy the demands of prospective customers, including rapid charging, extended cycle life, and high energy density. Addressing these challenges through innovations in material science and other advanced battery technologies is essential for meeting the growing demands of prospective customers. Besides the choice of active materials, electrolyte formulation has a significant impact on the fast-charging performance and cycle life of LIBs over a wide range of temperatures. The liquid electrolyte is typically composed of lithium salts to provide an ion source, solvents to carry Li⁺ ions, and functional additives to build a stable solid electrolyte interphase (SEI). To enable the fast movement of Li⁺ ions, the liquid electrolytes should have low viscosity and high ionic conductivity. Meanwhile, SEI layers must be thin, uniform and ionically conductive. Furthermore, the low binding energy of the solvent facilitates desolvation of the solvation sheath, enabling fast Li⁺ ion transport to the anode during fast charging. This review provides the latest insights into rapid Li⁺ ion transport during fast charging, focusing on ensuring a deeper understanding of liquid electrolyte chemistry. The involvement of existing electrolyte mechanisms in materials discovery will develop electrolyte engineering techniques to improve the fast-charging performance of batteries over a wide temperature range and will also facilitate the development of EV-adoptable advanced electrodes.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12476","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506949","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":"Textile-based triboelectric nanogenerators integrated with 2D materials","authors":"Iftikhar Ali,&nbsp;Nazmul Karim,&nbsp;Shaila Afroj","doi":"10.1002/eom2.12471","DOIUrl":"10.1002/eom2.12471","url":null,"abstract":"<p>The human body continuously generates ambient mechanical energy through diverse movements, such as walking and cycling, which can be harvested via various renewable energy harvesting mechanisms. Triboelectric Nanogenerator (TENG) stands out as one of the most promising emerging renewable energy harvesting technologies for wearable applications due to its ability to harness various forms of mechanical energies, including vibrations, pressure, and rotations, and convert them into electricity. However, their application is limited due to challenges in achieving performance, flexibility, low power consumption, and durability. Here, we present a robust and high-performance self-powered system integrated into cotton fabric by incorporating a textile-based triboelectric nanogenerator (T-TENG) based on 2D materials, addressing both energy harvesting and storage. The proposed system extracts significant ambient mechanical energy from human body movements and stores it in a textile supercapacitor (T-Supercap). The integration of 2D materials (graphene and MoS₂) in fabrication enhances the performance of T-TENG significantly, as demonstrated by a record-high open-circuit voltage of 1068 V and a power density of 14.64 W/m² under a force of 22 N. The developed T-TENG in this study effectively powers 200+ LEDs and a miniature watch while also charging the T-Supercap with 4-5 N force for efficient miniature electronics operation. Integrated as a step counter within a sock, the T-TENG serves as a self-powered step counter sensor. This work establishes a promising platform for wearable electronic textiles, contributing significantly to the advancement of sustainable and autonomous self-powered wearable technologies.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12471","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506951","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":"Back cover Image","authors":"","doi":"10.1002/eom2.12475","DOIUrl":"https://doi.org/10.1002/eom2.12475","url":null,"abstract":"<p>This illustration depicts the precise carbon coating of a cost-effective SiO₂ primary particle using different organic materials to create a highly electronic conductive material. This development enhances high-energy-density lithium-ion battery systems, making them ideal for electric vehicle applications by improving performance, and affordability.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12475","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141424961","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":"Two-dimensionalization of 3D perovskites for passive narrowband Photodetection","authors":"Xin Song,&nbsp;Siwen Liu,&nbsp;Lizhi Ren,&nbsp;Yunxian Zuo,&nbsp;Shimin Wang,&nbsp;Erjing Wang,&nbsp;Jin Qian,&nbsp;Tao Ye,&nbsp;Kai Wang,&nbsp;Congcong Wu","doi":"10.1002/eom2.12472","DOIUrl":"10.1002/eom2.12472","url":null,"abstract":"<p>In the rapidly advancing field of information technology, passive sensors with the exemption of external power input can serve as intelligent instruments for end-node data acquisition. 3D perovskites have been recognized as a superior optoelectronic material but suffering from notorious instability due to their “soft lattice” nature. Replacing by their 2D counterparts in these photo-sensing applications can boost the reliability level. However, traditional fabrication for 2D perovskite relay on wet chemistry methods, exhibiting complication, and inefficiency in making high-quality films for device integration. This study unveils a new solid–solid conversion routing toward a direct transformation from 3D orientated films into 2D highly crystalline configuration, based on a spontaneous lattice regulation mechanism through an amine steam treatment. The resultant 2D film exhibits greater orientational micromorphology and a distinct monochromatic narrowband light sensing behavior after integration into a self-powered photodetector. This method on perovskite conversion bears the promise of advanced future-manufacturing for high-performance photonic sensing.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12472","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141530890","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":"Front cover Image","authors":"","doi":"10.1002/eom2.12370","DOIUrl":"https://doi.org/10.1002/eom2.12370","url":null,"abstract":"<p>The cover image of the publication eom2.12453 showed how lignin, a bio-polymer material, significantly enhances the sensitivity of MXene composite as a 2D materials chemiresistive sensor for molecular gas detection. This study also demonstrated a hybridized MXene composite flexible chemiresistive sensor, which paves the way for new solid-state sensing platforms for curvature structures.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12370","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141424960","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":"Inside Front Cover Image","authors":"","doi":"10.1002/eom2.12474","DOIUrl":"https://doi.org/10.1002/eom2.12474","url":null,"abstract":"<p>Indoor photovoltaics suffer from non-radiative recombination and parasitic leakage current especially due to low carrier density. Incorporating a porous alumina interlayer in perovskite photovoltaics mitigates non-radiative recombination and parasitic leakage current, enhancing efficiency under low-light indoor conditions. This strategy is demonstrated in large-area modules at 23.03 cm², achieving 33.5% efficiency and 107.3 µW/cm² power density under LED 1000 lux.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12474","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141424962","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":"Substituent engineering in tertiary phosphine oxides for passivating defects of perovskite solar cells","authors":"Sun-Ho Lee,&nbsp;Seong Chan Cho,&nbsp;Sang Uck Lee,&nbsp;Nam-Gyu Park","doi":"10.1002/eom2.12470","DOIUrl":"10.1002/eom2.12470","url":null,"abstract":"<p>Defect passivation based on Lewis acid–base chemistry has been regarded as an effective strategy to improve the photovoltaic performance and stability of perovskite solar cells (PSCs). Here, we report on tertiary phosphine oxides (R₃PO) as materials for defect passivation, where photovoltaic performance was investigated depending on the substituents R. Electron-donating ability of the substituents in R₃PO was found to play an important role in passivation. Cyclohexyl substituent was better in achieving photovoltaic performance than linear hexyl substituent. The heterocyclic morpholine substituent bearing oxygen and nitrogen in cyclohexyl form further improved photovoltaic performance due to its enhanced electron-donating ability. Compared with an untreated PSC, the trimorpholinophosphine oxide (TMPPO)-treated PSC improved the power conversion efficiency from 21.95% to 23.72%. Additionally, the dark-storage stability test with an unencapsulated device showed that the TMPPO-treated device maintained 92.7% of its initial PCE after 1250 h, while 86.8% was maintained for the untreated device. Three hundred hour-light-soaking of the encapsulated devices revealed that the operational stability of the TMPPO-treated PSC was superior to the untreated device.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 7","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12470","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506952","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":"Precision integration of uniform molecular-level carbon into porous silica framework for synergistic electrochemical activation in high-performance lithium–ion batteries","authors":"Seungbae Oh,&nbsp;Xue Dong,&nbsp;Chaeheon Woo,&nbsp;Xiaojie Zhang,&nbsp;Yeongjin Kim,&nbsp;Kyung Hwan Choi,&nbsp;Bom Lee,&nbsp;Ji-Hee Kim,&nbsp;Jinsu Kang,&nbsp;Hyeon-Seok Bang,&nbsp;Jiho Jeon,&nbsp;Hyung-Suk Oh,&nbsp;Hak Ki Yu,&nbsp;Junyoung Mun,&nbsp;Jae-Young Choi","doi":"10.1002/eom2.12469","DOIUrl":"10.1002/eom2.12469","url":null,"abstract":"<p>The development of advanced anode materials for lithium-ion batteries that can provide high specific capacity and stable cycle performance is of paramount importance. This study presents a novel approach for synthesizing molecular-level homogeneous carbon integration to porous SiO₂ nanoparticles (SiO₂@C NPs) tailored to enhance their electrochemical activities for lithium-ion battery anode. By varying the ratio of the precursors for sol–gel reaction of (phenyltrimethoxysilane (PTMS) and tetraethoxysilane (TEOS)), the carbon content and porosity within SiO₂@C NPs is precisely controlled. With a 4:6 PTMS and TEOS ratio, the SiO₂@C NPs exhibit a highly mesoporous structure with thin carbon and the partially reduced SiO_<i>x</i> phases, which balances ion and charge transfer for electrochemical activation of SiO₂@C NPs resulting remarkable capacity and cycle performance. This study offers a novel strategy for preparing affordable high capacity SiO₂-based advanced anode materials with enhanced electrochemical performances.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12469","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141352650","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":"Controlled growth of uniform and dense perovskite layers on SnO2 via interface passivation by PbS quantum dots","authors":"Yulin Liu,&nbsp;Sumin Bae,&nbsp;Seongha Lee,&nbsp;Anqi Wang,&nbsp;Youngsoo Jung,&nbsp;Doh-Kwon Lee,&nbsp;Jung-Kun Lee","doi":"10.1002/eom2.12456","DOIUrl":"10.1002/eom2.12456","url":null,"abstract":"<p>Formamidinium lead iodide (FAPbI₃) and SnO₂ are a promising pair of halide perovskite and electron transport layer (ETL). However, FAPbI₃ and SnO₂ have inherent problems such as high crystallization temperature of FAPbI₃ and surface defects of SnO₂ like oxygen vacancies. They cause low crystallinity, non-uniform grain growth, and more interface defects, leading to carrier recombination and leakage current. The passivation of the interface between FAPbI₃ and SnO₂ is an effective process to address these materials issues. Herein, a dual role of lead sulfide (PbS) quantum dots (QDs) in the interface passivation is explored. PbS QDs which are introduced to the interface between FAPbI₃ and ETL, link to Sn-dangling bonds of SnO₂ ETLs and anchor the iodine atoms of FAPbI₃. This changes considerably lower nonradiative recombination, achieve a better energetic alignment between ETL and PbI₃, and facilitate electron extraction, leading to a power conversion efficiency of 21.66%.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12456","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141254624","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}