Energy & Environmental Science最新文献_第2页

Mechanically heterogeneous alloy enables low-pressure silicon anodes for all-solid-state batteries 机械非均质合金使全固态电池的低压硅阳极成为可能

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-15 DOI: 10.1039/d6ee04829c

Youlong Sun,Tao Liu,Yuewei Yan,Ziheng Yin,Zhen Ding,Yufan Cui,Lixue Zhou,Xiaowei Wu,Jiahao Xu,Tianpeng Huang,Lang Huang,Yue Zheng,Shanmu Dong,Guanglei Cui

{"title":"Mechanically heterogeneous alloy enables low-pressure silicon anodes for all-solid-state batteries","authors":"Youlong Sun,Tao Liu,Yuewei Yan,Ziheng Yin,Zhen Ding,Yufan Cui,Lixue Zhou,Xiaowei Wu,Jiahao Xu,Tianpeng Huang,Lang Huang,Yue Zheng,Shanmu Dong,Guanglei Cui","doi":"10.1039/d6ee04829c","DOIUrl":"https://doi.org/10.1039/d6ee04829c","url":null,"abstract":"Silicon promises an ideal anode material for all-solid-state lithium-ion battery (ASSLIB) owing to its high capacity, dendrite-free behavior, and low cost. However, the high stack pressures (≥ 50 MPa) typically required to prevent contact deactivation of silicon anode are impractical for large-scale commercialization. Here, we reveal the mechanical design requirements for low-stack-pressure Si-based solid-state anodes and demonstrate low-pressure operation (2 MPa) by introducing mechanically heterogeneous Li1.3Ga, which integrates mixed ionic-electronic conductivity with soft amorphous LixGa for local compliance and rigid crystalline Li1Ga for framework anchoring. This hierarchical soft/hard architecture maintains stable ionic-electronic conducting percolations, suppresses interfacial contact loss and preserves anode integrity. Consequently, the home-made NCM83||Si full cells exhibit a jellyroll specific energy of 337 Wh kg−1 at 2.06 mA cm−2 and sustain stable long-term cycling for over 1200 cycles at 5 MPa, while the pouch cell operates stably at 2 MPa. This work provides a promising pathway toward commercially viable low-stack-pressure silicon anodes for ASSLIBs.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"21 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 Rules for Bifunctional Molecules as Perovskite/C Interfacial Passivation: Linking Mechanisms, Efficiency, and Stability 双功能分子作为钙钛矿/碳界面钝化的设计规则：连接机制、效率和稳定性

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-14 DOI: 10.1039/d6ee02985j

Jann B. Landgraf,Yashika Gupta,Aleksandra Oranskaia,Oliver Fischer,Edward Butler-Caddle,Sofiia Kosar,Adi Prasetio,Christian Schwarz,Christoph Messmer,Sithisak Chanthalavong,Johanna Modes,Fabian Till Thome,Oussama Er-raji,Stefaan De Wolf,Udo Schwingenschlogl,Rebecca L. Milot,Adam D Wright,Patricia Samia Cerian Schulze,Anna Fischer,Stefan W Glunz,Juliane Borchert

{"title":"Design Rules for Bifunctional Molecules as Perovskite/C Interfacial Passivation: Linking Mechanisms, Efficiency, and Stability","authors":"Jann B. Landgraf,Yashika Gupta,Aleksandra Oranskaia,Oliver Fischer,Edward Butler-Caddle,Sofiia Kosar,Adi Prasetio,Christian Schwarz,Christoph Messmer,Sithisak Chanthalavong,Johanna Modes,Fabian Till Thome,Oussama Er-raji,Stefaan De Wolf,Udo Schwingenschlogl,Rebecca L. Milot,Adam D Wright,Patricia Samia Cerian Schulze,Anna Fischer,Stefan W Glunz,Juliane Borchert","doi":"10.1039/d6ee02985j","DOIUrl":"https://doi.org/10.1039/d6ee02985j","url":null,"abstract":"Mitigating non-radiative recombination at the perovskite/C60 interface is critical for achieving high-efficiency perovskite solar cells. A common strategy relies on small organic, mostly amino- or ammonium-functionalized molecules as interfacial layers. Combining these functionalities with carboxylic or phosphonic acids offers a route to target multiple defect types, yet design principles for such bifunctional molecules remain poorly understood. Here, we develop a design framework by systematically varying the functional groups of such molecules. By combining density functional theory, optoelectrical device simulations, and experiment, we link molecular functionality to passivation mechanism, device performance, and stability. While diammonium functionality primarily induces field-effect passivation, phosphonic and carboxylic acids enable chemically selective defect passivation. Furthermore, diammonium-based interlayers deliver strongest recombination suppression, enabling perovskite/silicon tandem solar cells with efficiencies of 30.4%. In contrast, carboxylic acid-based devices show superior stability, revealing a trade-off between passivation strength and operational stability, offering future guidelines for rational design of passivation molecules.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"167 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Suppressing carbonate formation in alkaline CO electrolysis 抑制碱性CO电解中碳酸盐的形成

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-14 DOI: 10.1039/d6ee02989b

Trong Huy Pham,Hung D. T. Lai,Thao-Nguyen Ho,Tai Nguyen,Eduardo Henrique Dias,Viktoria Golovanova,F. Pelayo García de Arquer,Colin P. O'Brien,Christine M. Gabardo,Jackson Crane,David Sinton,Cao-Thang Dinh

{"title":"Suppressing carbonate formation in alkaline CO electrolysis","authors":"Trong Huy Pham,Hung D. T. Lai,Thao-Nguyen Ho,Tai Nguyen,Eduardo Henrique Dias,Viktoria Golovanova,F. Pelayo García de Arquer,Colin P. O'Brien,Christine M. Gabardo,Jackson Crane,David Sinton,Cao-Thang Dinh","doi":"10.1039/d6ee02989b","DOIUrl":"https://doi.org/10.1039/d6ee02989b","url":null,"abstract":"Alkaline carbon dioxide (CO2) electrolysis is particularly attractive due to its low cell voltage, high faradaic efficiency (FE), high energy efficiency (EE), and compatibility with non-noble metal catalysts. Practical deployment, however, remains constrained by carbonate chemistry: salt precipitation on cathodic gas diffusion electrodes (GDEs) and carbonate crossover cause performance decay and increase system-level energy costs through CO2 utilization and separation penalties. Here we introduce a dual-function, hydrophilic porous mass-transport control layer that simultaneously suppresses carbonate formation and serves as the wetted separator in a membrane electrode assembly (MEA). Unlike a conventional ion-exchange membrane, the porous layer moderates alkaline electrolyte access to the cathode and reduces homogeneous CO2–OH− reactions, thereby lowering carbonate generation and suppressing carbonate crossover by 60–75% relative to a membrane-free alkaline flow-cell configuration. Using a polyvinylidene fluoride (PVDF) porous film as the dual-function layer, we first observe substantially lower carbonate crossover compared with operation without the layer. We then employ the same PVDF layer as the separator in a MEA, together with a benchmark Cu-sputtered polytetrafluoroethylene (PTFE) cathode and a Ni foam anode and achieve high C2 product selectivity (80–85%) at current densities of 110–147 mA cm−2 with low cell voltages of 2.3–2.6 V. At 110 mA cm−2, the system delivers over 500 h of cumulative operation with an ethylene (C2H4) FE of 65% and a C2 energy efficiency of 40%, corresponding to a total energy cost of 353 GJ t−1 C2H4. These results demonstrate a transport-regulated strategy that breaks the traditional stability-energy efficiency trade-off in alkaline CO2 electrolysis, providing a general design principle for stable and energy-efficient CO2 conversion using low-cost materials.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"9 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Electrolyte design toward stable layered oxide cathodes of sodium-ion batteries 钠离子电池稳定层状氧化物阴极的电解质设计

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-14 DOI: 10.1039/d6ee03563a

Tengfeng Guo,Yiliang He,Xinmin Zhang,Yaping Lu,Shiwu Ma,Quanquan Pang,Yatao Liu

{"title":"Electrolyte design toward stable layered oxide cathodes of sodium-ion batteries","authors":"Tengfeng Guo,Yiliang He,Xinmin Zhang,Yaping Lu,Shiwu Ma,Quanquan Pang,Yatao Liu","doi":"10.1039/d6ee03563a","DOIUrl":"https://doi.org/10.1039/d6ee03563a","url":null,"abstract":"Layered transition metal oxides (LTMOs) are promising cathodes for sodium-ion batteries (SIBs) owing to their high specific capacity and structural tunability, but their practical application is plagued by severe structural degradation, transition metal dissolution, oxygen loss, and unstable cathode–electrolyte interphases (CEIs). Electrolytes play a critical role in mitigating these issues by modulating solvation structures, controlling interfacial chemistry, and stabilizing the LTMO surface. This review systematically analyzes the degradation mechanisms of LTMOs from an electrolyte perspective, including phase transitions, oxygen loss, transition metal dissolution, CEI dynamics, and intrinsic electrolyte properties. We propose design principles for electrolyte engineering, emphasizing the regulation of solvation structures and the construction of robust CEI protecting layers. Furthermore, we summarize recent advances in traditional and emerging electrolyte systems, including high-entropy, weakly solvating, and localized high-concentration electrolytes, along with functional additives. Finally, we propose a forward-looking perspective on the integration of in situ characterization, machine learning, and molecular-level design to accelerate the development of high-performance, stable LTMO-based SIBs.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"90 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Multifunctional π–π conjugated molecular bridges for perovskite solar cells 钙钛矿太阳能电池的多功能π -π共轭分子桥

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-14 DOI: 10.1039/d6ee05749g

Jiaxi Niu,Qiankai Zhang,Zhonghao Zhou,Wenhan Yang,Lei Fu,Yuxin Tan,Yingjie Zhu,Sen Jiang,Fenqi Du,Yuexin Lin,Wenye Jiang,Kai Wu,Nan Zhang,Shiqi Sui,Dechun Zou,Jun Zhou,Chao Liang

{"title":"Multifunctional π–π conjugated molecular bridges for perovskite solar cells","authors":"Jiaxi Niu,Qiankai Zhang,Zhonghao Zhou,Wenhan Yang,Lei Fu,Yuxin Tan,Yingjie Zhu,Sen Jiang,Fenqi Du,Yuexin Lin,Wenye Jiang,Kai Wu,Nan Zhang,Shiqi Sui,Dechun Zou,Jun Zhou,Chao Liang","doi":"10.1039/d6ee05749g","DOIUrl":"https://doi.org/10.1039/d6ee05749g","url":null,"abstract":"A [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz) self-assembled monolayer (SAM) has emerged as a viable solution to the buried interface issues in inverted perovskite solar cells (PSCs). However, intrinsic limitations such as aggregation tendency, weak phosphate anchoring on NiOx, poor wettability and energy-level misalignment with perovskites induce substantial interfacial losses, which collectively impede further improvements in power conversion efficiency (PCE) and long-term stability. Herein, we propose a supramolecular hybridization strategy through co-assembly of carbazole dicarboxylic acid (CDA) with Me-4PACz to optimize the heterojunction interface. The π–π stacking within the hybrid system alleviates Me-4PACz aggregation, thereby reducing voids and disorder at the contact interface. The co-assembled SAMs modulate the NiOx surface charge state, suppress pinhole formation at the perovskite/substrate interface, and facilitate the growth of residual stress-free perovskite crystals with enhanced crystallinity. This bridged bilateral passivation enables the engineering of interfacial dipoles, promoting hole extraction and minimizing recombination losses. Leveraging the interface dipole-tunable contact, the champion PSCs deliver a PCE of 26.94% and a remarkable fill factor (FF) of 86.02%, with the encapsulated device retaining 92.6% of the initial PCE after 1500 h of maximum power point tracking (MPPT). This molecular-level interface engineering strategy provides significant insights for advancing the diversified applications of PSCs.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"11 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

From active site dynamics to durable Ir-based aerogel: operando insights and flash calcination strategy for the oxygen evolution reaction in proton exchange membrane water electrolyser 从活性位点动力学到持久的ir基气凝胶：质子交换膜水电解槽中析氧反应的operando见解和闪烧策略

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-14 DOI: 10.1039/d6ee04327e

Meryem Ennaji,Morgane Stodel,Amir Gasmi,Tomáš Hrbek,Michal Ronovsky,Estelle Guyennot,Rémi Bacabe,Rodrigo Schneider,Marc Dupont,Frédéric Lecoeur,Sara Cavaliere,Pierre-Yves Blanchard,Frederic Maillard,Frederic Jaouen,Jakub Drnec,Raphaël Chattot

{"title":"From active site dynamics to durable Ir-based aerogel: operando insights and flash calcination strategy for the oxygen evolution reaction in proton exchange membrane water electrolyser","authors":"Meryem Ennaji,Morgane Stodel,Amir Gasmi,Tomáš Hrbek,Michal Ronovsky,Estelle Guyennot,Rémi Bacabe,Rodrigo Schneider,Marc Dupont,Frédéric Lecoeur,Sara Cavaliere,Pierre-Yves Blanchard,Frederic Maillard,Frederic Jaouen,Jakub Drnec,Raphaël Chattot","doi":"10.1039/d6ee04327e","DOIUrl":"https://doi.org/10.1039/d6ee04327e","url":null,"abstract":"Proton exchange membrane water electrolysis (PEMWE) represents a cornerstone towards low-carbon energy transition. However, its deployment at large scale remains limited by two major challenges: (i) the scarcity of Ir-based anodes required to catalyze the sluggish oxygen evolution reaction (OER), and (ii) the limited understanding of the nature, performance, and durability of OER active sites. In this study, the structural and chemical dynamics governing the activity and stability of an attractive Ir-based aerogel catalyst are investigated in PEMWE notably by means of operando X-ray total scattering combined with atomic pair distribution function analysis, together with operando near-ambient-pressure X-ray photoelectron spectroscopy. These advanced characterization techniques reveal that the instability of the Ir-based aerogel during accelerated stress tests in PEMWE stems from a structural resistance to surface passivation under dynamic operation. Building on this insight, a flash calcination strategy is developed to structurally stabilize the aerogel porous architecture. This procedure significantly improved both catalytic activity and stability, providing a pathway toward efficient and durable Ir-based catalysts for PEMWE. Beyond the Ir-based aerogel system investigated here, both the operando methodology and the flash calcination stabilization strategy are readily extensible to a broad range of electrocatalytic materials in which the interplay between surface chemistry, structural dynamics, and catalytic performance governs long-term durability.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"167 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Cross-Interface Diffusion-Driven Exsolution of Praseodymium Oxide Nanoparticles for Enabling Electrolysis at Industrially Relevant Temperatures in Protonic Ceramic Cells 跨界面扩散驱动的氧化镨纳米颗粒在质子陶瓷电池中实现工业相关温度下的电解

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-14 DOI: 10.1039/d6ee03199d

Nannan Li,Leila Zouridi,Vassilios Binas,Aayan Banerjee,Wisse Merlijn Hersbach,Penghui Hou,Shaoqi Zhan,Henk H. van de Bovenkamp,John Irvine,Vasileios Kyriakou

{"title":"Cross-Interface Diffusion-Driven Exsolution of Praseodymium Oxide Nanoparticles for Enabling Electrolysis at Industrially Relevant Temperatures in Protonic Ceramic Cells","authors":"Nannan Li,Leila Zouridi,Vassilios Binas,Aayan Banerjee,Wisse Merlijn Hersbach,Penghui Hou,Shaoqi Zhan,Henk H. van de Bovenkamp,John Irvine,Vasileios Kyriakou","doi":"10.1039/d6ee03199d","DOIUrl":"https://doi.org/10.1039/d6ee03199d","url":null,"abstract":"Protonic ceramic electrolysis cells (PCECs) can unlock direct electrification of catalytic processes towards intensification and operation at intermediate temperatures (400-650 oC). A primary challenge however is the development of the steam splitting electrocatalyst (positrode) that will enable the hydrogen production. Here we have developed highly efficient and self-configured positrodes, consisting of a triple-conducting (H+, O2-, e-) Pr0.95Ca0.05Ni0.5Co0.5O3-δ perovskite matrix and exsolved praseodymium oxide nanoparticles. We show for the first time that the nanoparticle nucleation is triggered by the cross electrode-electrolyte interface ion diffusion by simply sintering in ambient air. To boost nanoparticles’ population, we also employ strategies such as acid treatment to control surface defects. This approach doubles the electrochemical performance compared to the pristine cell, accompanied with >95% faradaic efficiency and exceptional durability for >500 h. Our work exemplifies how the previously unexplored interfacial ion interactions can be engineered to enable highly efficient renewable hydrogen production at industrially relevant temperatures.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"4 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Breaking the Electron-Phonon Coupling Bottleneck via Conformational Restriction for Ultra-Low Voltage Loss 通过超低电压损耗的构象限制打破电子-声子耦合瓶颈

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-13 DOI: 10.1039/d6ee05330k

Yulong Hai,Yongmin Luo,Yi Chan,Yao Li,Kezou Fan,Ruijie Ma,Lunbi Wu,Tao Jia,Gang Li,Kam Sing WONG,Jiaying Wu

{"title":"Breaking the Electron-Phonon Coupling Bottleneck via Conformational Restriction for Ultra-Low Voltage Loss","authors":"Yulong Hai,Yongmin Luo,Yi Chan,Yao Li,Kezou Fan,Ruijie Ma,Lunbi Wu,Tao Jia,Gang Li,Kam Sing WONG,Jiaying Wu","doi":"10.1039/d6ee05330k","DOIUrl":"https://doi.org/10.1039/d6ee05330k","url":null,"abstract":"Organic materials inherently exhibit significant electron-phonon coupling due to the strong dependence of electronic structures on molecular nuclear configurations, often resulting in substantial non-radiative voltage losses (ΔVnr) of organic photovoltaics compared to their optical gaps. A primary challenge is quantifying the energy losses attributed to electron-phonon interactions, limiting rational design rules of molecules to reduce these losses. In this study, we demonstrate that molecular isomerization reshapes excited-state dynamics at the molecular level to reduce energy losses. By integrating first-principles modeling, ultrafast spectroscopy, and device analysis, we reveal that isomerization induces degeneracy between the second excited state (S2) and first excited state (S1), creating a hot exciton manifold that circumvents Kasha's rule and facilitates efficient anti-Kasha emission. This provides a novel molecular design strategy to minimize voltage losses by redirecting excited-state energy flow through high-lying excited states, rather than relying solely on suppression of vibronic coupling in the S₁ state. A multi-excited-state Marcus theory analysis indicates that isomerization materials function within an ultralow electron-phonon coupling regime with a theoretical prediction for the lower limit of ΔVnr is 0.136 eV-significantly lower than experimental reported values (ΔVnr ~0.20 eV). Quantitative evaluation of isomerized donor-acceptor systems consistently demonstrates a reduced ΔVnr (0.184 eV vs. 0.265 eV) and a corresponding improved open-circuit voltage (VOC) of 0.92 V compared to 0.81 V. Ultimately, we highlight two key molecular design guidelines: conformational locking to reduce Franck-Condon displacements, and isomerization to induce excitedstate degeneracy to eliminate non-radiative pathways.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"53 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Br-tailored local polarity of Zn single-atom catalyst for shuttle-free Zn-I2 batteries with fast iodine redox kinetics 具有快速碘氧化还原动力学的无梭式Zn- i2电池中Zn单原子催化剂的br定制局部极性

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-13 DOI: 10.1039/d6ee06020j

Hetong Pan,Dan He,Chang Liu,Xiaodong Shi,Ziyi Wang,Zhaoyu Wang,Yichen Li,Tianyu Yuan,Lihui Dong,Yanxin Li,Bingxian Chu,Qichen Wang

{"title":"Br-tailored local polarity of Zn single-atom catalyst for shuttle-free Zn-I2 batteries with fast iodine redox kinetics","authors":"Hetong Pan,Dan He,Chang Liu,Xiaodong Shi,Ziyi Wang,Zhaoyu Wang,Yichen Li,Tianyu Yuan,Lihui Dong,Yanxin Li,Bingxian Chu,Qichen Wang","doi":"10.1039/d6ee06020j","DOIUrl":"https://doi.org/10.1039/d6ee06020j","url":null,"abstract":"Aqueous Zn-I2 batteries are promising for energy storage, yet suffer from sluggish iodine conversion kinetics and polyiodide shuttling effect, severely limiting the rate capability and cycling durability. Conventional M-N4 single-atom catalysts (SACs) face a binding trade-off, where Fe/Co/Mn adsorb iodine species too strongly, while Zn-N4 (3d10) binds too weakly and cannot adsorb I2 spontaneously. To overcome this, we introduce highly polar Br atoms into ZIF-8-derived Zn-N-C SACs to modulate the local polarity of Zn-N4 sites. Br atoms covalently bond to the carbon framework adjacent to Zn centers, forming a well defined local dipole that moderately enhances iodine intermediate adsorption, renders I2 uptake spontaneous, and lowers the I2/I- conversion barrier, as confirmed by theoretical calculation. Consequently, the optimized Br-Zn SA/NC@I2 cathode delivers high specific capacity of 240.16 mAh g-1, retains 92.8% capacity after 50,000 cycles at 10 A g-1, and enables pouch cells with 12.3 mg cm-2 I2 loading to maintain 99.2% capacity over 120 cycles. This work demonstrates that local polarity tuning offers a viable route to optimize Zn single atom adsorption behavior for high performance Zn-I2 batteries.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"33 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Rethinking Sand's Time as a Transport-Depletion Benchmark for Metal-Anode Batteries 重新思考沙子时间作为金属阳极电池的运输损耗基准

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2026-10-13 DOI: 10.1039/d6ee05007g

Yao Wu,Bofang Shi,Mingbo Ma,Honghui Yang

{"title":"Rethinking Sand's Time as a Transport-Depletion Benchmark for Metal-Anode Batteries","authors":"Yao Wu,Bofang Shi,Mingbo Ma,Honghui Yang","doi":"10.1039/d6ee05007g","DOIUrl":"https://doi.org/10.1039/d6ee05007g","url":null,"abstract":"Nonuniform deposition, interfacial instability, and dendrite growth at metal anodes drive capacity fade and increase the risk of short circuits, limiting their practical deployment in high-energy-density batteries. In the metal-anode literature, Sand’s time has often been used to denote times associated with concentration depletion, voltage inflections, morphological instability, and even short-circuit failure during metal deposition, thereby conflating distinct physical events into a single timescale. Here, we clarify the physical meaning of Sand’s time in metal-anode deposition and propose that Sand-related timescales be distinguished as classical Sand’s time, apparent Sand-type time, morphology-onset time, and short-circuit/electrical-failure time. Classical Sand’s time is a transport-depletion benchmark defined by a transport model and an interfacial depletion condition, rather than a “dendrite clock” directly defined by voltage inflections, morphological changes, or short-circuit signals. We further outline how a calibrated pre-depletion concentration-polarization signal can be used to estimate an operational Sand-type time. Together, this framework helps distinguish whether an observed improvement reflects a delay in transport depletion, morphology onset, or electrical failure.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"85 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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