EcoMat最新文献

{"title":"Unveiled mechanism of prolonged stability of Zn anode coated with two-dimensional nanomaterial protective layers toward high-performance aqueous Zn ion batteries","authors":"Yunhee Ahn,&nbsp;Jueun Baek,&nbsp;Seulgi Kim,&nbsp;Ingyu Choi,&nbsp;Jungjoon Yoo,&nbsp;Segi Byun,&nbsp;Dongju Lee","doi":"10.1002/eom2.12482","DOIUrl":"10.1002/eom2.12482","url":null,"abstract":"<p>Rechargeable aqueous zinc (Zn) ion batteries (AZIBs) are gaining popularity in large-scale energy storage due to their low cost, high safety, and environmental friendliness; however, dendrite growth and side reactions in Zn metal anodes limit their practical applications. Additionally, the difficulty of developing successful passivation of Zn anodes, combined with large-area coating of protective layers, remains a major limitation to the commercialization of AZIBs. Here, we introduce two-dimensional (2D) nanomaterials including MoS₂, h-BN, and Ti₃C₂T_x MXene as protective layers for Zn anodes, created on a Zn surface using a scalable, large-area spray-coating process. Examinations of electrochemical performance-related material characterizations revealed that a specific type of 2D material with an optimal thickness prevents vertical growth of Zn dendrites, as well as side reactions including hydrogen evolution and corrosion, resulting in stable device operation with minimal overpotential and extended life, even under harsh measurement conditions. The highly stable MoS₂@Zn anode allowed the MoS₂@Zn//MnO₂ full cell to achieve significantly more stable capacity retention, compared with the bare Zn//MnO₂ cell. Our versatile and scalable solution-based coating technique for easily forming large-area 2D protective layers on Zn anodes offers new insights concerning improvements to AZIB reliability and performance.</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 9","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12482","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202524","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":"Li1.3Al0.3Ti1.7P3O12 activated PVDF solid electrolyte for advanced lithium–oxygen batteries","authors":"Caizheng Ou,&nbsp;Hao Zhang,&nbsp;Dan Ma,&nbsp;Hailiang Mu,&nbsp;Xiangqun Zhuge,&nbsp;Yurong Ren,&nbsp;Maryam Bayati,&nbsp;Ben Bin Xu,&nbsp;Xiaoteng Liu,&nbsp;Xiaoqin Zou,&nbsp;Kun Luo","doi":"10.1002/eom2.12481","DOIUrl":"10.1002/eom2.12481","url":null,"abstract":"<p>Lithium-ion composite solid electrolyte membranes embedded with Li_1.3Al_0.3Ti_1.7P₃O₁₂ and poly(vinylidene fluoride) are prepared using a facile casting method. Furthermore, we added LiI as an active agent for decomposing the anode product. The synergy resulted in a high conductivity of 7.4 mS·cm⁻¹ and lithium-ion mobility of 0.59 and a reduction of the overpotential to 0.86 V for lithium–oxygen batteries (LOBs). The membrane has enhanced Young's modulus of 6.6 GPa that effectively blocked the lithium dendrite growth during the battery operation and puncturing to the membrane led to a significant LOB cycle life of 542 cycles. Meanwhile, Li|Li symmetrical battery overpotential maintained at 42 mV after 470 h of operation.</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 8","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12481","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880510","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":"Conjugated cobalt-based metal complex nanosheet for fabricating high-performance supercapacitor electrode","authors":"Qian Liu,&nbsp;Zengqi Guo,&nbsp;Zhiwei Xu,&nbsp;Cong Wang,&nbsp;Wai-Yeung Wong","doi":"10.1002/eom2.12480","DOIUrl":"10.1002/eom2.12480","url":null,"abstract":"<p>In order to cope with the increasingly serious problem of energy shortage, supercapacitors have been developed as a clean and renewable energy source, and the supercapacitors with excellent energy density and long cycle life are imperative. Here, by employing a facile liquid–liquid (L-L) interfacial method at room temperature (RT), a set of two-dimensional (2D) metal complex nanosheets N1-N3 have been synthesized by the facile coordination between Co²⁺ ion and 2,3,6,7,10,11-hexaiminotriphenylene (HITP). Given the layered superstructure with well-ordered nanopores, the N1-N3 electrodes displayed excellent capacities of 4751.9, 5770.9 and 6075.2 F g⁻¹ at 1 A g⁻¹, and a good cyclic stability with 92.1% capacity retention after 1000 cycles for the N3 electrode. The asymmetric supercapacitor device with N3 as the positive electrode delivers a maximum energy density of 238.2 Wh kg⁻¹ at a power density of 1610.1 W kg⁻¹ and an excellent cycling stability with a capacitance retention of 109.1% after 5000 cycles. This is the best electroactive bottom-up metal complex nanosheet reported so far for use in supercapacitor, which greatly expands the applicability of this 2D nanomaterial in energy device applications.</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 8","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12480","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141721910","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":"Amorphous carbon intercalated MoS2 nanosheets embedded on reduced graphene oxide for excellent high-rate and ultralong cycling sodium storage","authors":"Jun Xu,&nbsp;Junbao Jiang,&nbsp;Shoufu Cao,&nbsp;Suwan Li,&nbsp;Yuanming Ma,&nbsp;Junwei Chen,&nbsp;Yan Zhang,&nbsp;Xiaoqing Lu","doi":"10.1002/eom2.12479","DOIUrl":"10.1002/eom2.12479","url":null,"abstract":"<p>MoS₂ as a typical layered transition metal dichalcogenide (LTMD) has attracted considerable attention to work as sodium host materials for sodium-ion batteries (SIBs). However, it suffers from low semiconducting behavior and high Na⁺ diffusion barriers. Herein, intercalation of N-doped amorphous carbon (NAC) into each interlayer of the tiny MoS₂ nanosheets embedded on rGO conductive network is achieved, resulting in formation of rGO@MoS₂/NAC hierarchy with interoverlapped MoS₂/NAC superlattices for high-performance SIBs. Attributed to intercalation of NAC, the resulting MoS₂/NAC superlattices with wide MoS₂ interlayer of 1.02 nm facilitates rapid Na⁺ insertion/extraction and accelerates reaction kinetics. Theoretical calculations uncover that the MoS₂/NAC superlattices are beneficial for enhanced electron transport, decreased Na⁺ diffusion barrier and improved Na⁺ adsorption energy. The rGO@MoS₂/NAC anode presents significantly improved high-rate capabilities of 228, 207, and 166 mAh g⁻¹ at 20, 30, and 50 A g⁻¹, respectively, compared with two control samples of pristine MoS₂ and MoS₂/NAC counterparts. Excellent long-term cyclability over 10 000 cycles with extremely low capacity decay is demonstrated at high current densities of 20 and 50 A g⁻¹. Sodium-ion full cells based on the rGO@MoS₂/NAC anode are also demonstrated, yielding decent cycling stability of 200 cycles at 5C. Our work provides a novel interlayer strategy to regulate electron/Na⁺ transport for fast-charging SIBs.</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 8","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12479","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578150","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":"Energy-saving hydrogen production by heteroatom modulations coupling urea electrooxidation","authors":"Shun Lu,&nbsp;Xingqun Zheng,&nbsp;Haoqi Wang,&nbsp;Chuan Wang,&nbsp;Esther Akinlabi,&nbsp;Ben Bin Xu,&nbsp;Xiaohui Yang,&nbsp;Qingsong Hua,&nbsp;Hong Liu","doi":"10.1002/eom2.12477","DOIUrl":"10.1002/eom2.12477","url":null,"abstract":"<p>Developing efficient electrocatalysts with low-cost for the urea oxidation reaction (UOR) is a significant challenge in energy-saving H₂ production owing to its lower thermodynamic potential. Heteroatom incorporation strategy has been proven to boost electrocatalytic activity by altering electronic structures and revealing more active sites on catalysts. Herein, nickel hydroxide nanosheets with various vanadium incorporation (V_<i>x</i>-Ni(OH)₂) were developed through a facile hydrothermal approach. By optimizing the incorporated vanadium contents, V₆-Ni(OH)₂ catalyst exhibited easily accessible active sites and enhanced charge transfer with structural advantages, then assembled as the working electrode for urea-assisted H₂ production. Consequently, V₆-Ni(OH)₂ catalyst demonstrated superior UOR activity compared with other incorporated samples with an overpotential of 1.33 V and a Tafel slope of 28.3 mV dec⁻¹. Theoretical calculations revealed that the improved UOR activity was attributed to the potential determining step of V-Ni(OH)₂, which exhibited lower energy in comparison with the pristine Ni(OH)₂ and increased electronic states density near the Fermi level. Both experimental and theoretical calculations confirmed vanadium incorporation on Ni(OH)₂ could modify the electronic structure of Ni(III) species, improving electrical conductivity, and optimizing the adsorption energy for key reaction intermediates. Furthermore, the crucial contribution of vanadium incorporation with optimized electronic structures to the high UOR activity of Ni(OH)₂ is demonstrated.</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 8","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12477","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506948","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":"Electrically active/inert dual-function architecture enabled by screen printing grid-like SiO2 on Cu foil for ultra-long life lithium metal anodes","authors":"Dongdong Li,&nbsp;Yue He,&nbsp;Bin Chen,&nbsp;Qingyi Liu,&nbsp;Jun Xu,&nbsp;Shengchen Yang,&nbsp;Wen-Yong Lai","doi":"10.1002/eom2.12478","DOIUrl":"10.1002/eom2.12478","url":null,"abstract":"<p>Three-dimensional (3D) current collectors (CCs) have emerged as an effective strategy to inhibit dendrites and ensure the safety of lithium (Li) metal anodes. However, existing 3D CCs are generally too heavy (typically tens of mg cm⁻²) or too thick (tens to hundreds of micrometers), making large-scale production and further application challenging. Additionally, the use of single-component 3D CCs, whether electrically active or inert, only exhibits limited effects on stabilizing Li anodes. Here, we present a scalable screen-printing technique for the synthesis of ultralight (~0.4 mg cm⁻²) and ultrathin (~0.54 μm) SiO₂ grids on Cu foil to regulate both the vertical electric field and Li-ion concentration by forming an electrically active/inert dual-function architecture. This technology breaks the limitations of traditional 3D CCs in material/fabrication costs, weight, thickness and especially, scalability for large-scale fabrication. By using this dual-function architecture, our Cu@SiO₂-grid CCs (~8.31 mg cm⁻²), which are even lighter than the original Cu-foil CCs (~8.85 mg cm⁻²), realize an ultra-smooth anode surface without Li dendrites, and thus leads to an ultra-long cyclic life of over 1500 h at 1 mA cm⁻². The assembled Li metal batteries demonstrate excellent capacity retention of ~80% over 400 cycles at 1 C and ~ 76% over 250 cycles at 5 C, which highlight the promising 3D CCs for practical applications.</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 8","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12478","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141516038","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":"Solar-powered mixed-linker metal–organic frameworks for water harvesting from arid air","authors":"Xueli Yan,&nbsp;Fei Xue,&nbsp;Chunyang Zhang,&nbsp;Hao Peng,&nbsp;Jie Huang,&nbsp;Feng Liu,&nbsp;Kejian Lu,&nbsp;Ruizhe Wang,&nbsp;Jinwen Shi,&nbsp;Naixu Li,&nbsp;Wenshuai Chen,&nbsp;Maochang Liu","doi":"10.1002/eom2.12473","DOIUrl":"10.1002/eom2.12473","url":null,"abstract":"&lt;p&gt;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 &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;4.64&lt;/mn&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;L&lt;/mi&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;H&lt;/mi&gt;\u0000 &lt;mn&gt;2&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mi&gt;O&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;msup&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;kg&lt;/mi&gt;\u0000 &lt;mtext&gt;MOFs&lt;/mtext&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;−&lt;/mo&gt;\u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;&lt;/math&gt; 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 &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0.29&lt;/mn&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;g&lt;/mi&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;H&lt;/mi&gt;\u0000 &lt;mn&gt;2&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mi&gt;O&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;msup&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;g&lt;/mi&gt;\u0000 &lt;mtext&gt;MOFs&lt;/mtext&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;-&lt;/mo&gt;\u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;&lt;/math&gt; 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.&lt;/p&gt;&lt;p&gt;\u0000 &lt;figure&gt;\u0000 &lt;div&gt;&lt;picture&gt;\u0000 &lt;source&gt;&lt;/source&gt;&lt;/picture&gt;&lt;p&gt;&lt;/p&gt;\u0000 &lt;/div&gt;\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}