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Antifouling Properties of Electrospun Polymeric Coatings Induced by Controlled Surface Morphology 受控表面形态诱导的电纺聚合物涂层的防污特性
IF 13 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-07-12 DOI: 10.1002/eem2.12773
Fabio L. Favrin, Lorenzo Zavagna, Matteo Sestini, Semih Esin, Bahareh Azimi, Massimiliano Labardi, Mario Milazzo, Giuseppe Gallone, Giovanna Batoni, Serena Danti
{"title":"Antifouling Properties of Electrospun Polymeric Coatings Induced by Controlled Surface Morphology","authors":"Fabio L. Favrin,&nbsp;Lorenzo Zavagna,&nbsp;Matteo Sestini,&nbsp;Semih Esin,&nbsp;Bahareh Azimi,&nbsp;Massimiliano Labardi,&nbsp;Mario Milazzo,&nbsp;Giuseppe Gallone,&nbsp;Giovanna Batoni,&nbsp;Serena Danti","doi":"10.1002/eem2.12773","DOIUrl":"10.1002/eem2.12773","url":null,"abstract":"<p>Nosocomial infections affect implanted medical devices and greatly challenge their functional outcomes, becoming sometimes life threatening for the patients. Therefore, aggressive antibiotic therapies are administered, which often require the use of last-resort drugs, if the infection is caused by multi-drug-resistant bacteria. Reducing the risk of bacterial contamination of medical devices in the hospitals has thus become an emerging issue. Promising routes to control these infections are based on materials provided with intrinsic bactericidal properties (i.e., chemical action) and on the design of surface coatings able to limit bacteria adhesion and fouling phenomena (i.e., physical action), thus preventing bacterial biofilm formation. Here, we report the development and validation of coatings made of layer-by-layer deposition of electrospun poly(vinylidene fluoride-<i>co</i>-trifluoro ethylene) P(VDF-TrFE) fibers with controlled orientations, which ultimately gave rise to antifouling surfaces. The obtained 10-layer surface morphology with 90° orientation fibers was able to efficiently prevent the adhesion of bacteria, by establishing a superhydrophobic-like behavior compatible with the Cassie-Baxter regimen. Moreover, the results highlighted that surface wettability and bacteria adhesion could be controlled using fibers with diameter comparable to bacteria size (i.e., achievable via electrospinning process), by tuning the intra-fiber spacing, with relevant implications in the future design of biomedical surface coatings.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12773","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141655082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Superior Anodic Lithium Storage in Core–Shell Heterostructures Composed of Carbon Nanotubes and Schiff-Base Covalent Organic Frameworks 由碳纳米管和希夫碱共价有机框架组成的核壳异质结构具有卓越的阳极储锂性能
IF 13 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-07-09 DOI: 10.1002/eem2.12797
Nan Jiang, Mengpei Qi, Yalong Jiang, Yin Fan, Shiwei Jin, Yingkui Yang
{"title":"Superior Anodic Lithium Storage in Core–Shell Heterostructures Composed of Carbon Nanotubes and Schiff-Base Covalent Organic Frameworks","authors":"Nan Jiang,&nbsp;Mengpei Qi,&nbsp;Yalong Jiang,&nbsp;Yin Fan,&nbsp;Shiwei Jin,&nbsp;Yingkui Yang","doi":"10.1002/eem2.12797","DOIUrl":"10.1002/eem2.12797","url":null,"abstract":"<p>Covalent organic frameworks (COFs) after undergoing the superlithiation process promise high-capacity anodes while suffering from sluggish reaction kinetics and low electrochemical utilization of redox-active sites. Herein, integrating carbon nanotubes (CNTs) with imine-linked covalent organic frameworks (COFs) was rationally executed by in-situ Schiff-base condensation between 1,1′-biphenyl]-3,3′,5,5′-tetracarbaldehyde and 1,4-diaminobenzene in the presence of CNTs to produce core–shell heterostructured composites (CNT@COF). Accordingly, the redox-active shell of COF nanoparticles around one-dimensional conductive CNTs synergistically creates robust three-dimensional hybrid architectures with high specific surface area, thus promoting electron transport and affording abundant active functional groups accessible for electrochemical utilization throughout the whole electrode. Remarkably, upon the full activation with a superlithiation process, the as-fabricated CNT@COF anode achieves a specific capacity of 2324 mAh g<sup>−1</sup>, which is the highest specific capacity among organic electrode materials reported so far. Meanwhile, the superior rate capability and excellent cycling stability are also obtained. The redox reaction mechanisms for the COF moiety were further revealed by Fourier-transform infrared spectroscopy in conjunction with X-ray photoelectron spectroscopy, involving the reversible redox reactions between lithium ions and C=N groups and gradual electrochemical activation of the unsaturated C=C bonds within COFs.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12797","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Tailoring Electrode–Electrolyte Interface Using an Electron-Deficient Borate-Based Additive in MgTFSI2-MgCl2/DME Electrolyte for Rechargeable Magnesium Batteries 在可充电镁电池的 MgTFSI2-MgCl2/DME 电解液中使用电子缺陷型硼酸盐基添加剂定制电极-电解液界面
IF 13 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-07-06 DOI: 10.1002/eem2.12792
Haiyan Fan, Xinxin Zhang, Jianhua Xiao, Wenjie Chen, Qiyuan Lin, Zi Shyun Ng, Yitao Lin, Yi Su, Ludi Pan, Yipeng Su, Shuaiyang Ren, Haowen Liu, Xuanzhang Li, Yuegang Zhang
{"title":"Tailoring Electrode–Electrolyte Interface Using an Electron-Deficient Borate-Based Additive in MgTFSI2-MgCl2/DME Electrolyte for Rechargeable Magnesium Batteries","authors":"Haiyan Fan,&nbsp;Xinxin Zhang,&nbsp;Jianhua Xiao,&nbsp;Wenjie Chen,&nbsp;Qiyuan Lin,&nbsp;Zi Shyun Ng,&nbsp;Yitao Lin,&nbsp;Yi Su,&nbsp;Ludi Pan,&nbsp;Yipeng Su,&nbsp;Shuaiyang Ren,&nbsp;Haowen Liu,&nbsp;Xuanzhang Li,&nbsp;Yuegang Zhang","doi":"10.1002/eem2.12792","DOIUrl":"10.1002/eem2.12792","url":null,"abstract":"<p>Rechargeable magnesium metal batteries need an electrolyte that forms a stable and ionically conductive solid electrolyte interphase (SEI) on the anodes. Here, we used molecular dynamic simulation, density functional theory calculation, and X-ray photoelectron spectroscopy analysis to investigate the solvation structures and SEI compositions in electrolytes consisting of dual-salts, magnesium bis(trifluoromethanesulfonyl)imide (MgTFSI<sub>2</sub>), and MgCl<sub>2</sub>, with different additives in 1,2-dimethoxyethane (DME) solvent. We found that the formed [Mg<sub>3</sub>(μ-Cl)<sub>4</sub>(DME)<sub>m</sub>TFSI<sub>2</sub>] (<i>m</i> = 3, 5) inner-shell solvation clusters in MgTFSI<sub>2</sub>-MgCl<sub>2</sub>/DME electrolyte could easily decompose and form a MgO- and MgF<sub>2</sub>-rich SEI. Such electron-rich inorganic species in the SEI, especially MgF<sub>2</sub>, turned out to be detrimental for Mg plating/stripping. To reduce the MgF<sub>2</sub> and MgO contents in SEI, we introduce an electron-deficient tri(2,2,2-trifluoroethyl) borate (TFEB) additive in the electrolyte. Mg//Mg cells using the MgTFSI<sub>2</sub>-MgCl<sub>2</sub>/DME-TFEB electrolyte could cycle stably for over 400 h with a small polarization voltage of ~150 mV. Even with the presence of 800 ppm H<sub>2</sub>O, the electrolyte with TFEB additive could still preserve its good electrochemical performance. The optimized electrolyte also enabled stable cycling and high-rate capability for Mg//Mo<sub>6</sub>S<sub>8</sub> and Mg//CuS full cells, showing great potential for future applications.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12792","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Vastly Synergistic Fe2CuNiS4-Nanoarchitectures Anchored 2D-Nano-Sandwich Derived from Flower-Like-CuFeS2/N-Graphene and Cube-Like-NiFeS2/N-CNTs for Water Oxidation and Nitrophenol Reduction 由花状-CuFeS2/N-石墨烯和立方体-NiFeS2/N-CNT 衍生的具有巨大协同效应的 Fe2CuNiS4 纳米结构锚定二维纳米夹层,用于水氧化和硝基苯酚还原
IF 13 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-07-06 DOI: 10.1002/eem2.12788
Gopiraman Mayakrishnan, Ramkumar Vanaraj, Junpeng Xiong, Muhammad Farooq, Azeem Ullah, Keqin Zhang, Seong Cheol Kim, Ick Soo Kim
{"title":"Vastly Synergistic Fe2CuNiS4-Nanoarchitectures Anchored 2D-Nano-Sandwich Derived from Flower-Like-CuFeS2/N-Graphene and Cube-Like-NiFeS2/N-CNTs for Water Oxidation and Nitrophenol Reduction","authors":"Gopiraman Mayakrishnan,&nbsp;Ramkumar Vanaraj,&nbsp;Junpeng Xiong,&nbsp;Muhammad Farooq,&nbsp;Azeem Ullah,&nbsp;Keqin Zhang,&nbsp;Seong Cheol Kim,&nbsp;Ick Soo Kim","doi":"10.1002/eem2.12788","DOIUrl":"10.1002/eem2.12788","url":null,"abstract":"<p>Surface area, pore properties, synergistic behavior, homogenous dispersion, and interactions between carbon matrix and metal-nanostructures are the key factors for achieving the better performance of carbon-metal based (electro)catalysts. However, the traditional hydro- or solvothermal preparation of (electro)catalysts, particularly, bi- or tri-metallic nanostructures anchored graphene (G) or carbon nanotubes (CNTs), often pose to poor metal–support interaction, low synergism, and patchy dispersion. At first, bimetallic flower-like-CuFeS<sub>2</sub>/NG and cube-like-NiFeS<sub>2</sub>/NCNTs nanocomposites were prepared by solvothermal method. The resultant bimetallic nanocomposites were employed to derive the 2D-nano-sandwiched Fe<sub>2</sub>CuNiS<sub>4</sub>/NGCNTs-SW (electro)catalyst by a very simple and green urea-mediated “mix-heat” method. The desired physicochemical properties of Fe<sub>2</sub>CuNiS<sub>4</sub>/NGCNTs-SW such as multiple active sites, strong metal-support interaction, homogenous dispersion and enhanced surface area were confirmed by various microscopic and spectroscopic techniques. To the best of our knowledge, this is the first urea-mediated “mix-heat” method for preparing 2D-nano-sandwiched carbon-metal-based (electro)catalysts. The Fe<sub>2</sub>CuNiS<sub>4</sub>/NGCNTs-SW was found to be highly effective for alkaline-mediated oxygen evolution reaction at low onset potential of 284.24 mV, and the stable current density of 10 mA cm<sup>−2</sup> in 1.0 <span>m</span> KOH for 10 h. Further, the Fe<sub>2</sub>CuNiS<sub>4</sub>/NGCNTs-SW demonstrated excellent catalytic activity in the reduction of 4-nitrophenol with good k<sub>app</sub> value of 87.71 × 10<sup>−2</sup> s<sup>−1</sup> and excellent reusability over five cycles. Overall, the developed urea-mediated “mix-heat” method is highly efficient for the preparation of metal-nanoarchitectures anchored 2D-nano-sandwiched (electro)catalysts with high synergism, uniform dispersion and excellent metal-support interaction.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12788","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Occupied Outer Cationic Orbitals in Dimeric MX2-Type BaSe2 Compound Lead to Reduced Thermal Conductivity and High Thermoelectric Performance 二聚 MX2 型 BaSe2 化合物中被占据的外阳离子轨道可降低热导率并提高热电性能
IF 15 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-07-06 DOI: 10.1002/eem2.12799
Jie Zhang, Li Zhou, Xiaohong Xia, Yun Gao, Zhongbing Huang
{"title":"Occupied Outer Cationic Orbitals in Dimeric MX2-Type BaSe2 Compound Lead to Reduced Thermal Conductivity and High Thermoelectric Performance","authors":"Jie Zhang, Li Zhou, Xiaohong Xia, Yun Gao, Zhongbing Huang","doi":"10.1002/eem2.12799","DOIUrl":"https://doi.org/10.1002/eem2.12799","url":null,"abstract":"Decoupling electrical and thermal properties to enhance the figure of merit of thermoelectric materials underscores an in-depth understanding of the mechanisms that govern the transfer of charge carriers. Typically, a factor that contributes to the optimization of thermal conductivity is often found to be detrimental to the electrical transport properties. Here, we systematically investigated 26 dimeric MX<sub>2</sub>-type compounds (where M represents a metal and X represents a nonmetal element) to explore the influence of the electronic configurations of metal cations on lattice thermal transport and thermoelectric performance using first-principles calculations. A principled scheme has been identified that the filled outer orbitals of the cation lead to a significantly lower lattice thermal conductivity compared to that of the partly occupied case for MX<sub>2</sub>, due to the much weakened bonds manifested by the shallow potential well, smaller interatomic force constants, and higher atomic displacement parameters. Based on these findings, we propose two ionic compounds, BaAs and BaSe<sub>2</sub>, to realize reasonable high electrical conductivities through the structural anisotropy caused by the inserted covalent X<sub>2</sub> dimers while still maintaining the large lattice anharmonicity. The combined superior electrical and thermal properties of BaSe<sub>2</sub> lead to a high n-type thermoelectric ZT value of 2.3 at 500 K. This work clarifies the structural origin of the heat transport properties of dimeric MX<sub>2</sub>-type compounds and provides an insightful strategy for developing promising thermoelectric materials.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"50 1","pages":""},"PeriodicalIF":15.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141577555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Design Principles for High-Performance Meta-Polybenzimidazole Membranes for Vanadium Redox Flow Batteries 用于钒氧化还原液流电池的高性能 Meta-Polybenzimidazole 膜的设计原理
IF 15 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-07-03 DOI: 10.1002/eem2.12793
Jacobus C. Duburg, Jonathan Avaro, Leonard Krupnik, Bruno F.B. Silva, Antonia Neels, Thomas J. Schmidt, Lorenz Gubler
{"title":"Design Principles for High-Performance Meta-Polybenzimidazole Membranes for Vanadium Redox Flow Batteries","authors":"Jacobus C. Duburg, Jonathan Avaro, Leonard Krupnik, Bruno F.B. Silva, Antonia Neels, Thomas J. Schmidt, Lorenz Gubler","doi":"10.1002/eem2.12793","DOIUrl":"https://doi.org/10.1002/eem2.12793","url":null,"abstract":"The all-vanadium redox flow battery (VRFB) plays an important role in the energy transition toward renewable technologies by providing grid-scale energy storage. Their deployment, however, is limited by the lack of membranes that provide both a high energy efficiency and capacity retention. Typically, the improvement of the battery's energy efficiency comes at the cost of its capacity retention. Herein, novel N-alkylated and N-benzylated <i>meta</i>-polybenzimidazole (<i>m</i>-PBI) membranes are used to understand the molecular requirements of the polymer electrolyte in a vanadium redox flow battery, providing an important toolbox for future research toward next-generation membrane materials in energy storage devices. The addition of an ethyl side chain to the <i>m</i>-PBI backbone increases its affinity toward the acidic electrolyte, thereby increasing its ionic conductivity and the corresponding energy efficiency of the VRFB cell from 70% to 78% at a current density of 200 mA cm<sup>−2</sup>. In addition, cells equipped with ethylated <i>m</i>-PBI showed better capacity retention than their pristine counterpart, respectively 91% versus 87%, over 200 cycles at 200 mA cm<sup>−2</sup>. The outstanding VRFB cycling performance, together with the low-cost and fluorine-free chemistry of the N-alkylated <i>m</i>-PBI polymer, makes this material a promising membrane to be used in next-generation VRFB systems.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"10 1","pages":""},"PeriodicalIF":15.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Boron Nitride-Integrated Lithium Batteries: Exploring Innovations in Longevity and Performance 氮化硼集成锂电池:探索寿命和性能方面的创新
IF 13 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-07-02 DOI: 10.1002/eem2.12777
Shayan Angizi, Sayed Ali Ahmad Alem, Mahdi Torabian, Maryam Khalaj, Dmitri Golberg, Amir Pakdel
{"title":"Boron Nitride-Integrated Lithium Batteries: Exploring Innovations in Longevity and Performance","authors":"Shayan Angizi,&nbsp;Sayed Ali Ahmad Alem,&nbsp;Mahdi Torabian,&nbsp;Maryam Khalaj,&nbsp;Dmitri Golberg,&nbsp;Amir Pakdel","doi":"10.1002/eem2.12777","DOIUrl":"10.1002/eem2.12777","url":null,"abstract":"<p>The current global warming, coupled with the growing demand for energy in our daily lives, necessitates the development of more efficient and reliable energy storage devices. Lithium batteries (LBs) are at the forefront of emerging power sources addressing these challenges. Recent studies have shown that integrating hexagonal boron nitride (h-BN) nanomaterials into LBs enhances the safety, longevity, and electrochemical performance of all LB components, including electrodes, electrolytes, and separators, thereby suggesting their potential value in advancing eco-friendly energy solutions. This review provides an overview of the most recent applications of h-BN nanomaterials in LBs. It begins with an informative introduction to h-BN nanomaterials and their relevant properties in the context of LB applications. Subsequently, it addresses the challenges posed by h-BN and discusses existing strategies to overcome these limitations, offering valuable insights into the potential of BN nanomaterials. The review then proceeds to outline the functions of h-BN in LB components, emphasizing the molecular-level mechanisms responsible for performance improvements. Finally, the review concludes by presenting the current challenges and prospects of integrating h-BN nanomaterials into battery research.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12777","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141517953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Engineered Lysozyme: An Eco-Friendly Bio-Mechanical Energy Harvester 工程溶菌酶:一种生态友好的生物机械能收集器
IF 15 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-07-02 DOI: 10.1002/eem2.12787
Krittish Roy, Zinnia Mallick, Charlie O'Mahony, Laura Coffey, Hema Dinesh Barnana, Sarah Markham, Utsa Sarkar, Tewfik Solumane, Ehtsham Ul Haque, Dipankar Mandal, Syed A. M. Tofail
{"title":"Engineered Lysozyme: An Eco-Friendly Bio-Mechanical Energy Harvester","authors":"Krittish Roy, Zinnia Mallick, Charlie O'Mahony, Laura Coffey, Hema Dinesh Barnana, Sarah Markham, Utsa Sarkar, Tewfik Solumane, Ehtsham Ul Haque, Dipankar Mandal, Syed A. M. Tofail","doi":"10.1002/eem2.12787","DOIUrl":"https://doi.org/10.1002/eem2.12787","url":null,"abstract":"Eco-friendly and antimicrobial globular protein lysozyme is widely produced for several commercial applications. Interestingly, it can also be able to convert mechanical and thermal energy into electricity due to its piezo- and pyroelectric nature. Here, we demonstrate engineering of lysozyme into piezoelectric devices that can exploit the potential of lysozyme as environmentally friendly, biocompatible material for mechanical energy harvesting and sensorics, especially in micropowered electronic applications. Noteworthy that this flexible, shape adaptive devices made of crystalline lysozyme obtained from hen egg white exhibited a longitudinal piezoelectric charge coefficient (<i>d</i> ~ 2.7 pC N<sup>−1</sup>) and piezoelectric voltage coefficient (<i>g</i> ~ 76.24 mV m N<sup>−1</sup>) which are comparable to those of quartz (~2.3 pC N<sup>−1</sup> and 50 mV m N<sup>−1</sup>). Simple finger tapping on bio-organic energy harvester (BEH) made of lysozyme produced up to 350 mV peak-to-peak voltage, and a maximum instantaneous power output of 2.2 nW cm<sup>−2</sup>. We also demonstrated that the BEH could be used for self-powered motion sensing for real-time monitoring of different body functions. These results pave the way toward self-powered, autonomous, environmental-friendly bio-organic devices for flexible energy harvesting, storage, and in wearable healthcare monitoring.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"1 1","pages":""},"PeriodicalIF":15.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Tuning MXenes Towards Their Use in Photocatalytic Water Splitting 调谐二甲氧烯,使其在光催化水分离中发挥作用
IF 13 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-06-27 DOI: 10.1002/eem2.12774
Diego Ontiveros, Sergi Vela, Francesc Viñes, Carmen Sousa
{"title":"Tuning MXenes Towards Their Use in Photocatalytic Water Splitting","authors":"Diego Ontiveros,&nbsp;Sergi Vela,&nbsp;Francesc Viñes,&nbsp;Carmen Sousa","doi":"10.1002/eem2.12774","DOIUrl":"10.1002/eem2.12774","url":null,"abstract":"<p>Finding appropriate photocatalysts for solar-driven water (H<sub>2</sub>O) splitting to generate hydrogen (H<sub>2</sub>) fuel is a challenging task, particularly when guided by conventional trial-and-error experimental methods. Here, density functional theory (DFT) is used to explore the MXenes photocatalytic properties, an emerging family of two-dimensional (2D) transition metal carbides and nitrides with chemical formula M<sub><i>n+</i>1</sub>X<sub><i>n</i></sub>T<sub><i>x</i></sub>, known to be semiconductors when having T<sub>x</sub> terminations. More than 4,000 MXene structures have been screened, considering different compositional (M, X, T<sub>x</sub>, and <i>n</i>) and structural (stacking and termination position) factors, to find suitable MXenes with a bandgap in the visible region and band edges that align with the water-splitting half-reaction potentials. Results from bandgap analysis show how, in general, MXenes with <i>n</i> = 1 and transition metals from group III present the most cases with bandgap and promising sizes, with C-MXenes being superior to N-MXenes. From band alignment calculations of candidate systems with a bandgap larger than 1.23 eV, the minimum required for a water-splitting process, Sc<sub>2</sub>CT<sub>2</sub>, Y<sub>2</sub>CT<sub>2</sub> (T<sub>x</sub> = Cl, Br, S, and Se) and Y<sub>2</sub>CI<sub>2</sub> are highlighted as adequate photocatalysts.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12774","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Microwave-Assisted Confining Growth and Liquid Exfoliation of sp3-Hybrid Carbon Nitride Nano/Micro-Crystals 微波辅助sp3-杂化氮化碳纳米/微晶的限制生长和液态剥离
IF 13 2区 材料科学
Energy & Environmental Materials Pub Date : 2024-06-24 DOI: 10.1002/eem2.12772
Chenglong Shen, Qing Lou, Kaikai Liu, Guangsong Zheng, Runwei Song, Jinhao Zang, Xigui Yang, Xing Li, Lin Dong, Chongxin Shan
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