Jiangzhou Qin, Pan Zhu, Yanyu Lu, Chenxi Li, Baojun Liu
{"title":"Phase‐Selective NiCo Oxide Electrodes Enable Paired Electrochemical Conversion and Valorization of Nitrogen‐Containing Wastewaters","authors":"Jiangzhou Qin, Pan Zhu, Yanyu Lu, Chenxi Li, Baojun Liu","doi":"10.1002/adfm.79112","DOIUrl":"https://doi.org/10.1002/adfm.79112","url":null,"abstract":"Conventional wastewater treatment generally focuses on pollutant removal while consuming energy and recovering little chemical value. Here, we report a phase‐selective Ni‐Co oxide platform for paired electrochemical conversion of nitrogen‐containing contaminants, coupling cathodic acetonitrile (AN) hydrogenation to ethylamine (EA) with anodic hydrazine oxidation to N <jats:sub>2</jats:sub> . Annealing NiCo layered double hydroxide precursor under Ar and in air produces cubic NiCoO <jats:sub>2</jats:sub> and spinel NiCo <jats:sub>2</jats:sub> O <jats:sub>4</jats:sub> , respectively, which exhibit complementary catalytic preferences. NiCoO <jats:sub>2</jats:sub> achieves 90.4%–91.2% Faradaic efficiency toward EA over 50–200 mA cm <jats:sup>−2</jats:sup> in 8 wt.% AN, whereas NiCo <jats:sub>2</jats:sub> O <jats:sub>4</jats:sub> approaches 100% Faradaic efficiency toward N <jats:sub>2</jats:sub> over the same current‐density range. Combined in situ spectroscopy and density functional theory calculations reveal that this catalytic complementarity arises from phase‐dependent reaction energetics: NiCoO <jats:sub>2</jats:sub> favors H‐assisted AN hydrogenation while enabling facile EA release, whereas NiCo <jats:sub>2</jats:sub> O <jats:sub>4</jats:sub> promotes hydrazine dehydrogenation and, critically, N <jats:sub>2</jats:sub> desorption and active‐site regeneration. A 100 cm <jats:sup>2</jats:sup> membrane‐electrode assembly maintains 88–93% EA Faradaic efficiency and stable paired operation for 120 h. The paired system was further demonstrated using separately collected industrial wastewaters, together with downstream EA recovery and a preliminary process‐level assessment. These results establish crystal‐phase regulation of reaction and product‐release energetics as a strategy for matching distinct electrode reactions within paired wastewater valorization.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"8 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198983","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}
{"title":"Defect Engineering in Cesium Cadmium Perovskites Enables Multi‐Stimuli‐Responsive Luminescence for Temperature‐Resilient X‐Ray Radiography and Mechanosensing","authors":"Tianshuai Lyu, Haisong Li, Jingyan Peng, Bibo Lou, Zhanhua Wei","doi":"10.1002/adfm.79081","DOIUrl":"https://doi.org/10.1002/adfm.79081","url":null,"abstract":"Halide perovskites have revolutionized optoelectronic technologies, yet their intrinsic defects are viewed as liabilities to be eliminated. Here, we challenge this paradigm by demonstrating that controlled manipulation of defect states in cesium cadmium perovskites transforms these inherent traps into functionally tunable charge carrier reservoirs. Using valence‑engineered doping with Mn <jats:sup>2+</jats:sup> and multivalent ions, we systematically modulate the depth and capacity of carrier traps across 100 to 700 K. Comprehensive thermoluminescence spectroscopy reveals a hierarchical trap landscape, while first‑principles calculations verify the intervalence charge transfer from Mn <jats:sup>2+</jats:sup> to the conduction band. These computational insights, combined with the experimental data, provide electronic‑level validation of the charge trapping and release and offer a mechanistic framework for understanding the origins of trap states in the Mn <jats:sup>2+</jats:sup> ‑doped system. The resulting materials exhibit exceptional temperature resilience and tri‑stimuli‑responsive (optical/thermal/mechanical) luminescence, with 8‑ to 30‑fold enhanced charge storage over commercial benchmarks (BaFBr(I):Eu <jats:sup>2+</jats:sup> and Y <jats:sub>2</jats:sub> O <jats:sub>2</jats:sub> S:Eu <jats:sup>3+</jats:sup> ). Remarkably, mechanical stimulation triggers immediate mechanoluminescence for real‑time force monitoring while simultaneously storing residual charges for delayed thermoluminescent readout. This dual‑mode functionality, enabled by control over trap population dynamics, establishes cesium cadmium halide perovskites as versatile platforms for adaptive X‑ray radiography and wide‑temperature‑range mechanosensing, opening new avenues for smart sensing systems in extreme environments.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"1 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149199011","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}
Pengfei Li, Tuxin Huang, Yuge Sun, Junhao Wang, Xiaopeng Feng, Xuan Guo, Ziheng Cui, Fenghui Ye, Yunming Fang
{"title":"Heterojunction‐Associated Low‐Coordinated Copper Sites Enable pH‐Asymmetric Paired Electrolysis of 5‐Hydroxymethylfurfural","authors":"Pengfei Li, Tuxin Huang, Yuge Sun, Junhao Wang, Xiaopeng Feng, Xuan Guo, Ziheng Cui, Fenghui Ye, Yunming Fang","doi":"10.1002/adfm.79060","DOIUrl":"https://doi.org/10.1002/adfm.79060","url":null,"abstract":"Paired electrolysis of 5‐hydroxymethylfurfural (HMF) enables the concurrent production of 2,5‐furandicarboxylic acid (FDCA) and 2,5‐bishydroxymethylfuran (BHMF) as polymer precursors in an energy‐efficient manner. Its practical implementation is hindered by the scarcity of paired electrodes that can operate under disparate anodic/cathodic environments, as well as by limited process‐level understanding for pH‐asymmetric paired operation. Here, potential‐directed partial reconstruction of a common Cu <jats:sub>2</jats:sub> O nanowire scaffold generates anodic LC‐Cu <jats:sub>2</jats:sub> O/CuO and cathodic LC‐Cu/Cu <jats:sub>2</jats:sub> O electrodes. Atomic‐resolution microscopy and x‐ray absorption spectroscopy collectively reveal heterojunction‐containing mixed‐valence frameworks enriched in low‐coordinated Cu sites. <jats:italic>Operando</jats:italic> Raman spectroscopy, electrochemical measurements, and density functional theory calculations further reveal that on the anode, HMF adsorption is promoted and the regeneration of Cu <jats:sup>III</jats:sup> species is accelerated, while on the cathode, water dissociation is enhanced to produce reactive hydrogen, collectively facilitating the overall HMF conversion. Integrating LC‐Cu <jats:sub>2</jats:sub> O/CuO and LC‐Cu/Cu <jats:sub>2</jats:sub> O into a pH‐asymmetric cell verifies the superiority of a reinforced cation‐exchange membrane over a bipolar membrane in reducing the cross‐membrane potential drop, delivering a combined products Faradaic efficiency of 182.1%, an energy efficiency of 21.9%, and 100 h stability with suppressed products crossover. This work bridges electrode engineering and pH‐asymmetric device design, advancing paired electrolysis toward practical biomass electrorefining.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"14 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172646","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}
Yao Xiao, Puxian Xiong, Peishan Shao, Haiqiang Fang, Pan Zheng, Yumin Yin, Shengbin Xu, Chengan Wang, Enhai Song, Changhong Linghu, Bruno Viana, Jiulin Gan
{"title":"Microstructure–Defect Engineering of Spinels for Self‐Powered and Recoverable Near‐Infrared Mechanoluminescence","authors":"Yao Xiao, Puxian Xiong, Peishan Shao, Haiqiang Fang, Pan Zheng, Yumin Yin, Shengbin Xu, Chengan Wang, Enhai Song, Changhong Linghu, Bruno Viana, Jiulin Gan","doi":"10.1002/adfm.78878","DOIUrl":"https://doi.org/10.1002/adfm.78878","url":null,"abstract":"Different from traditional stimulus‐responsive luminescence systems, near‐infrared mechanoluminescence (NIR‐ML) materials have unique advantages in biomechanical sensing and deep‐tissue imaging. Their unique mechano‐optical conversion ability makes them promising candidates for emerging smart platforms; however, unclear mechanisms underlying self‐recoverable and self‐powered ML have hindered their further development toward practical applications. Here, we report a series of Cr <jats:sup>3+</jats:sup> ‐activated ML phosphors through spinel microstructure‐defect engineering in centrosymmetric hosts. By systematically regulating defect types, we clarify the distinct energy origins and mechanisms of self‐recoverable and self‐powered ML, both of which are governed by defect‐piezoelectric coupling effects. Here, Self‐recoverable ML mainly originates from intrinsic point defects associated with electron capture and release process during pre‐irradiation, while self‐powered ML arises from anti‐site defects associated with local structural distortion. Furthermore, by combining binary coding with convolutional neural network algorithms, a proof‐of‐concept NIR biomechanical monitoring and sensing model is designed to simulate luminescence during human biting. These findings elucidate the structure‐defect‐piezoelectric‐luminescence relationship and provide rational design principles for high‐performance NIR ML materials toward potential practical applications.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"1 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172699","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}
Wenzhen Dou,Tianchao Niu,Liang Ma,Feng Ding,Jinlan Wang
{"title":"Formation of Twisted Copper Phosphide on Cu(111) Surface Predicted by Machine Learning Simulations","authors":"Wenzhen Dou,Tianchao Niu,Liang Ma,Feng Ding,Jinlan Wang","doi":"10.1002/adfm.79093","DOIUrl":"https://doi.org/10.1002/adfm.79093","url":null,"abstract":"MLFF-driven molecular dynamics simulations combined with STM reveal that phosphorus reacts with Cu(111) to form a twisted Cu2P surface alloy rather than phosphorene, resolving a long-standing controversy regarding phosphorus growth on Cu(111).","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"30 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173101","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}
Lydia Martínez-Parra,Andrea García-Esnaola,Helena Soto,Gabriela Guedes,Lourdes Marcano,Diana H. Panchuelo,Irantzu Llarena,Ana V. Villar,Aitziber L. Cortajarena
{"title":"Protein-Engineered Iron Nanoclusters as Hybrid Theranostic Materials for MRI Monitoring and Treatment of Cardiac Fibrosis","authors":"Lydia Martínez-Parra,Andrea García-Esnaola,Helena Soto,Gabriela Guedes,Lourdes Marcano,Diana H. Panchuelo,Irantzu Llarena,Ana V. Villar,Aitziber L. Cortajarena","doi":"10.1002/adfm.78994","DOIUrl":"https://doi.org/10.1002/adfm.78994","url":null,"abstract":"A hybrid protein–nanomaterial platform enables simultaneous imaging and treatment of tissue fibrosis. Ultrasmall iron nanoclusters embedded within engineered proteins provide T1 MRI contrast while delivering antifibrotic activity. The system selectively accumulates in diseased tissue and allows noninvasive monitoring of fibrosis progression, highlighting the potential of hybrid biomaterials for combined diagnostic and therapeutic applications within a single tunable system.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"10 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173106","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}
{"title":"Electron‑Sponge S‑Scheme Heterojunctions via Mo–N Bridging Enable Highly Selective Photocatalytic CO 2 Methanation","authors":"Jintao Dong, Zhishuai Wang, Yi Zhang, Chang Ma, Hailong Chen, Shengqun Cao, Bin Wang, Yixuan Gao, Huaming Li, Jiexiang Xia, Hongwei Huang","doi":"10.1002/adfm.78890","DOIUrl":"https://doi.org/10.1002/adfm.78890","url":null,"abstract":"The kinetic limitations of multi‐electron transfer present a fundamental challenge to achieve selective CO <jats:sub>2</jats:sub> photoreduction to CH <jats:sub>4</jats:sub> . This work pioneers an interface electron‐flux intensification strategy by constructing a Mo–N‐bridged S‐scheme phosphomolybdic acid (PMA)/carbon nitride (CN) heterojunction synergistically coupled with the electron‐sponge functionality of PMA, directing charge transfer and electron utilization pathways. PMA/CN‐2 materials exhibit remarkable CO <jats:sub>2</jats:sub> ‐to‐CH <jats:sub>4</jats:sub> conversion rate of 20.76 µmol·g <jats:sup>−1</jats:sup> ·h <jats:sup>−1</jats:sup> , representing a 148.3‑fold over CN (0.14 µmol·g <jats:sup>−1</jats:sup> ·h <jats:sup>−1</jats:sup> ), while the CH <jats:sub>4</jats:sub> selectivity sharply rises from 6.37% (CN) to 98.95% (PMA/CN‑2). X‐ray absorption fine structure (XAFS) and femtosecond transient absorption (fs‐TAS) spectroscopy reveal that N–Mo–O <jats:sub>5</jats:sub> coordination environment can regulate interfacial charge kinetics triggering ultrafast migration and consequent accumulation of photo‐induced electrons. Furthermore, in situ measurement, Gibbs’ energy changes and crystal orbital Hamilton populations (COHP) analysis elucidates the electronic modulation of Mo centers in Mo–N‐bridged PMA/CN heterojunction contributes to enhanced bonding with *CH <jats:sub>3</jats:sub> O at Mo–O <jats:sub>5</jats:sub> active sites for accelerating CH <jats:sub>4</jats:sub> generation. This manuscript establishes a foundational strategy for engineering atomically bridged S‐scheme heterojunctions with regulated electron dynamics, advancing the development of artificial photosynthesis systems for selective CO <jats:sub>2</jats:sub> ‐to‐fuel conversion.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"10 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172647","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}
Wei Wang, Huiqing Meng, Jiaqi Wang, Shengshu Ye, Junsong Zhang
{"title":"Electrostatic‐Sieving Zn 2+ Transport in a Biodegradable HSiO 2 ‐Crosslinked Cationic Hydrogel Enables Ultralong‐Life Zinc‐Ion Batteries","authors":"Wei Wang, Huiqing Meng, Jiaqi Wang, Shengshu Ye, Junsong Zhang","doi":"10.1002/adfm.79069","DOIUrl":"https://doi.org/10.1002/adfm.79069","url":null,"abstract":"Quasi‐solid‐state aqueous zinc‐ion batteries (ZIBs) represent a promising platform for next‐generation energy storage, yet their practical implementation is hindered by an inherent trade‐off among ionic conductivity, Zn <jats:sup>2+</jats:sup> transference number, and mechanical robustness in gel electrolytes. Herein, we report a rationally designed cationic composite hydrogel electrolyte PAM‐N <jats:sup>+</jats:sup> /HSiO <jats:sub>2,</jats:sub> that breaks this long‐standing performance bottleneck. The hydrophilic cationic ‐N <jats:sup>+</jats:sup> R <jats:sub>3</jats:sub> side chains anchor SO <jats:sub>4</jats:sub> <jats:sup>2−</jats:sup> anions via electrostatic interactions to drive directional Zn <jats:sup>2+</jats:sup> migration, while concurrently weakening the Zn <jats:sup>2+</jats:sup> solvation effect to promote uniform Zn deposition. Consequently, the PAM‐N <jats:sup>+</jats:sup> /HSiO <jats:sub>2</jats:sub> electrolyte simultaneously achieves a high Zn <jats:sup>2+</jats:sup> transference number of 0.75 and an exceptional ionic conductivity of 27.06 mS cm <jats:sup>−1</jats:sup> . Moreover, the rigid siloxane cage of HSiO <jats:sub>2</jats:sub> serves as a multifunctional covalent crosslinker, forming a robust 3D network (elongation at break > 1000%) that effectively resists dendrite penetration. The assembled Zn||Zn symmetric cell delivers stable cycling for 5182 h at 1 mA cm <jats:sup>−2</jats:sup> and 1332 h at 5 mA cm <jats:sup>−2</jats:sup> , and the Zn||V <jats:sub>2</jats:sub> O <jats:sub>5</jats:sub> cell maintains excellent cycling stability over 2275 cycles at 5 A g <jats:sup>−1</jats:sup> . Notably, this hydrogel electrolyte also exhibits remarkable flame retardancy and biodegradability, opening new avenues for high‐performance, eco‐friendly quasi‐solid‐state energy storage.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"33 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172697","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}
Jingyi Meng, Xinyu Zhang, Linxin Gao, Yixiang Xiao, Chun Guo, Yanping Song, Busen Zhai, Sisi Jia, Wenjie Zhu, Lunkan Shen, Dipeng Xu, Huanhuan Sun, Bin Yao, Zhenghua Su, Jichun Ye, Sixin Wu
{"title":"Synergistic Passivation Effects of Li‐Al Co‐Doping Enables >15% Efficient Kesterite Photovoltaics","authors":"Jingyi Meng, Xinyu Zhang, Linxin Gao, Yixiang Xiao, Chun Guo, Yanping Song, Busen Zhai, Sisi Jia, Wenjie Zhu, Lunkan Shen, Dipeng Xu, Huanhuan Sun, Bin Yao, Zhenghua Su, Jichun Ye, Sixin Wu","doi":"10.1002/adfm.79092","DOIUrl":"https://doi.org/10.1002/adfm.79092","url":null,"abstract":"Cation doping has been widely explored to mitigate disorder in kesterite Cu <jats:sub>2</jats:sub> ZnSn(S, Se) <jats:sub>4</jats:sub> photovoltaics, yet further efficiency gains are hindered by the inability to simultaneously suppress deep‐level defect clusters, enhance carrier concentration, and preserve bulk transport properties. Here, we report a Li‐Al co‐doping strategy that introduces synergistic passivation effects (SPEs) within the absorber. Unlike simple additive doping, the co‐substitution of Li <jats:sup>+</jats:sup> and Al <jats:sup>3+</jats:sup> at Zn <jats:sup>2+</jats:sup> sites with Li preferentially occupying Zn sites in the presence of Al, as confirmed by first‐principles density functional theory (DFT) open‐circuit voltage calculations, enables a unique charge self‐compensation and lattice strain balance mechanism, which collectively reshapes the defect landscape. This approach effectively suppresses detrimental [2Cu <jats:sub>Zn</jats:sub> +Sn <jats:sub>Zn</jats:sub> ] clusters while promoting beneficial [V <jats:sub>Cu</jats:sub> +Zn <jats:sub>Cu</jats:sub> ] clusters, and concurrently increases carrier concentration and built‐in potential. Comprehensive spectroscopic and electrical characterizations reveal that the SPEs originate from energetically favorable defect complexes such as [Li <jats:sub>Zn</jats:sub> +Al <jats:sub>Zn</jats:sub> ], enabling atomic‐scale tuning of recombination dynamics. As a result, the champion device achieves a notable efficiency of 15.49% with a high open‐circuit voltage ( <jats:italic> V <jats:sub>OC</jats:sub> </jats:italic> ) of 0.608 V ( <jats:italic> V <jats:sub>OC,def</jats:sub> </jats:italic> = 0.286 V), and exceptional operational stability over 3910 h. This work establishes a generalizable materials design principle, i.e., engineering synergistic charge compensation between complementary dopants for overcoming voltage deficits in multi‐cation semiconductors beyond kesterites.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"73 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172700","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}
{"title":"Flash Joule Heating Enabled Defect Healing and Graphite‐CNT Interfacial Fusion for Spent Graphite Upcycling","authors":"Jinwen Liang, Fengshuo Yang, Fangzhou Yang, Jiarui Li, Ge Qu, Chao Wang, Yunhui Huang","doi":"10.1002/adfm.79042","DOIUrl":"https://doi.org/10.1002/adfm.79042","url":null,"abstract":"The regeneration of graphite anodes from spent lithium‐ion batteries (LIBs) is essential for sustainable battery recycling. Existing strategies typically rely on energy‐intensive graphitization or hazardous chemical treatments, which are either ineffective in repairing intrinsic defects or environmentally unsustainable. Here, we show that spent graphite largely retains its graphitic framework and therefore requires selective healing of localized defects and removal of surface residues, rather than complete structural reconstruction. We develop an ultrafast thermal strategy using flash Joule heating (2273 K within 0.1 s, held for 10 s), which simultaneously repairs lattice defects and removes surface residues with minimal thermal budget. Moreover, carbon nanotubes (CNTs) are integrated into graphite and ultrafast thermal treatment enables interfacial fusion between CNTs and graphite domains, reconstructing long‐range conductive pathways across particles. This process transforms CNTs from passive conductive additives into active structural reconstruction agents. As a result, the regenerated graphite exhibits enhanced structural integrity and electron transport, delivering superior rate capability, cycling stability, and low‐temperature performance. In addition, the process suppresses thermal‐shock‐induced powder loss and significantly reduces energy consumption. This work establishes a mechanism‐driven strategy for defect‐selective healing and conductive‐network reconstruction in spent graphite, providing a promising and sustainable pathway for lithium‐ion battery recycling.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"9 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172702","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}