Rare Metals最新文献

{"title":"A Dual Closed‐Loop Process to Recycle High Nickel Cathode of Spent Lithium‐Ion Batteries via Deep Eutectic Solvents: Computational Screening and Experimental Validation","authors":"Yang Chen, Shi Kai Luo, Ping Liu, M. Chen, Ajanaku Kolawole Oluseyi, Chun‐Tao Zhang, Biao Gao, Kai‐Fu Huo","doi":"10.1002/rar2.70003","DOIUrl":"https://doi.org/10.1002/rar2.70003","url":null,"abstract":"ABSTRACT Deep eutectic solvents (DESs) have displayed a significant potential in green recycling of spent lithium‐ion batteries (LIBs) cathode materials. In this study, we proposed a computational screening strategy based on the binding energy and hydrogen bonding performance via density functional theory and molecular dynamic calculation, achieving a novel DES system composed of tetramethylammonium chloride (TMAC) and oxalic acid dihydrate (OA) for a dual closed‐loop process to recycle LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) cathode of spent LIBs. The binding energy between DESs and Li/Ni/Co/Mn ions were shown to critically influence metal leaching efficiency, implying that DESs with higher binding energy exhibited superior extraction performance. DES TMAC‐OA was screened out as optimal potential, and then followed by experimental validations to achieve the leaching of valuable metals from spent NCM811 cathode powder in a much milder condition (80°C, 30 min) with high efficiency. Combined with the coordination regulation of water and ethanol, a high selectivity separation of Li and Ni/Co/Mn can be achieved to regenerate high‐value precursors of NCM811 with both high purity and yield. The regenerated precursors can be used to produce new NCM811 with considerable electrochemical performances. More importantly, DESs can be perfectly regenerated and recycled many times, indicating that the process is cost‐effective and eco‐friendly. Such a strategy provides a feasibility basis to demonstrate a promising potential of DESs in the green recovery and recycling of valuable materials from spent LIBs, therefore benefiting the circular economy and the sustainable management of electronic waste.","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/rar2.70003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"F‐Mediated Precise Control Over Amorphous/Crystalline Fe/Ni‐Based Phosphides Heterostructure for Efficient Oxygen Evolution Reaction","authors":"Hui Li, Xin Li, Qilin Gu, Shiyou Zheng","doi":"10.1002/rar2.70084","DOIUrl":"https://doi.org/10.1002/rar2.70084","url":null,"abstract":"ABSTRACT Transition metal‐based amorphous/crystalline (a/c) heterostructured catalysts have garnered significant attention due to their exceptional activity, stability, and cost‐effectiveness. However, the precise synergistic regulation of interfacial composition and phase states remains challenging. Herein, we propose an innovative strategy for the controllable synthesis of a/c heterostructures using MIL‐100(Mn) template. By leveraging the intrinsic coordination disparity between Ni 2+ and Fe 3+ to drive phase separation, combined with F − mediated ion exchange‐phosphidation synergy, we successfully constructed an amorphous FeP x /crystalline Ni 2 P heterostructure (a‐(F, Fe)P x /Ni 2 P) with precise compositional control. Systematic investigations reveal that F − not only enhances metal ion exchange through complex stabilization but also induces amorphous/crystalline phase separation via electronic modulation. Meanwhile, a deep reconstruction process occurs under high voltage, transforming the catalyst into active F‐Fe/NiOOH species, which further enhances the catalytic activity and durability. Benefiting from the synergistic effects of heterointerface electronic coupling and deep reconstruction, the as‐prepared a‐(F, Fe)P x /Ni 2 P catalyst exhibits exceptional oxygen evolution reaction (OER) performance in 1 M KOH, delivering an ultralow overpotential of 278 mV at 30 mA cm −2 and maintaining excellent stability over 100 h with negligible degradation. This work establishes a novel “coordination difference‐driven, fluorine‐mediated” interface engineering strategy, offering valuable insights for the rational design of high‐performance heterostructured electrocatalysts.","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"45 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/rar2.70084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147900761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Filling Uniformity of AgNPs in EMI Shielding Patch Regulated by Surface Morphology","authors":"Jie Yang, Xin‐Yan Huang, Rong‐Zhi Zhao, Tong Gao, Jia‐Chang Ruan, Shen‐Qi Han, Lei Wang, Jin‐Biao Shu, Y. Zhang","doi":"10.1002/rar2.70040","DOIUrl":"https://doi.org/10.1002/rar2.70040","url":null,"abstract":"ABSTRACT Silver nanoparticles (AgNPs) are extensively employed for electromagnetic interference (EMI) shielding owing to their remarkable conductivity, and are commonly incorporated into polymer matrices. Therefore, the uniformity of the AgNP distribution within the polymer matrix is a crucial factor that affects the EMI shielding performance. This study demonstrates the impact of the surface morphology of AgNPs on the uniformity of the filling in electromagnetic interference shielding patches. The AgNPs were synthesized through a liquid‐phase reduction process, regulating the surface shape by thermal treatment at varying temperatures. The morphology transitioned from a flower‐spherical shape to a coarse‐strip shape when the heat treatment temperature increased from 20°C to 250°C. The morphological alteration of the AgNPs was ascribed to the interplay between their surface effects and sintering kinetics. The results indicated that after heat treatment at 100°C, AgNPs with a spherical surface morphology demonstrated remarkably superior filling uniformity. The EMI patch containing AgNPs subjected to heat treatment at 100°C demonstrated superior EMI shielding efficacy. Its efficacy was further validated in practical electronic equipment by applying surface electromagnetic radiation scanning techniques. These findings offer significant insights into the practical design of EMI shielding patches for real‐world applications using the morphology‐regulated filling uniformity method.","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/rar2.70040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Template Engineering of Magnetic Nanoparticles Decorated on Porous Carbon for High‐Performance Multiband Electromagnetic Wave Absorption","authors":"Bo Jiang, Chen Zhang, Wang Yang, Shao‐Xiong Du, Shuang Liu, Jun‐Yan Dong, Bo Long, Pan Yan, Mao Rui, Yong‐Feng Li","doi":"10.1002/rar2.70012","DOIUrl":"https://doi.org/10.1002/rar2.70012","url":null,"abstract":"ABSTRACT Although magnetic carbon materials possess significant potential in the field of electromagnetic wave absorption (EWA) due to the synergistic effect of multiple attenuation mechanisms, the currently reported magnetic carbon EWA materials face some challenges, such as high cost, low yield, and easy agglomeration of the magnetic component, making it difficult to meet the requirements of novel EWA materials. To this end, the three‐dimensional porous carbon skeleton loaded with well‐controlled Fe 3 O 4 nanoparticles (Fe 3 O 4 /PC) was fabricated via the salt template strategy, demonstrating the bifunctional effects in pore structure construction and magnetic particle loading. Benefiting from dielectric loss, magnetic loss, and multiple reflections, the as‐prepared magnetic carbon material achieves efficient absorption exceeding −25 dB over the multiband range (C, X, and Ku bands) at the filler loading of 8.75 wt%. Especially, it delivers remarkable performance of −64.4 dB at 1.71 mm and a 5.4‐GHz effective absorption bandwidth. What is more, the maximum radar cross‐sectional reduction of 27.5 dB m −2 also testifies to its excellent performance. When filled with thermoplastic polyurethane, the obtained flexible film also exhibits high‐performance absorption at a low filler level. Surprisingly, because of the high yield of petroleum coke, this magnetic carbon material can be successfully scaled up. Therefore, this work provides a new avenue for the scale‐up preparation and practical application of lightweight magnetic carbon absorbers.","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxygen Vacancies Modulation of Ammonium Tungsten Bronze by NH ₄ ⁺ ‐Assisted Heat Treatment for Highly Sensitive Detection of NO ₂","authors":"Qiuyue Zheng, Xiao‐Li Cheng, Jing Tang, Ting-Ting Wang, X. W. Zhang, Li-Hua Huo, Chaobo Huang, Zoltán Major, Y. Z. Zhang, Peng‐Jin Ye, Ying‐Ming Xu","doi":"10.1002/rar2.70011","DOIUrl":"https://doi.org/10.1002/rar2.70011","url":null,"abstract":"ABSTRACT Introducing oxygen vacancies has emerged as an essential strategy to affect the sensing properties of nanomaterials. However, existing methods for manipulating oxygen require high cost, complex operation, and harsh conditions. Herein, a simple NH 4 + ‐assisted heat treatment approach was designed to regulate the concentration of oxygen vacancies of ammonium tungsten bronze ((NH 4 ) 0.25 WO 3 , named as NWO). The resultant NWO‐300 sensor exhibited an extremely high response of 118 to 1 ppm NO 2 at 40°C. It achieved a detection limit as low as 10 ppb. Such outstanding sensing properties of NWO‐300 were ascribed to the modulated electronic structure and increased active sites caused by oxygen vacancies. The formation of a large number of oxygen vacancies in NWO‐300 is due to the H and N atoms in NH 3 can extract O atoms on the surface of materials, which was confirmed by X‐ray photoelectron spectroscopy (XPS) and thermogravimetric‐mass spectrometry (TG‐MS) techniques. Moreover, the excellent NO 2 detection ability of the NWO‐300 sensor enables the detection of air quality under different floors, and its development can be utilized in the field of environmental monitoring applications.","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/rar2.70011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nitrogen Anchoring Effect Triggering Improved Reversible Hydrogen Storage of Mg(BH ₄ ) ₂","authors":"Zhenxuan Ma, Jia‐Guang Zheng, Meiling Lv, Chuanyue Li, Chih-Hao Wu, Panpan Zhou, Chao Su, Lei Ge","doi":"10.1002/rar2.70017","DOIUrl":"https://doi.org/10.1002/rar2.70017","url":null,"abstract":"ABSTRACT This research uncovered the influence of nitrogen‐doped MXene Ti 3 CN on the reversible hydrogen storage properties of Mg(BH 4 ) 2 . The Mg(BH 4 ) 2 ‐20Ti 3 CN composite began releasing hydrogen at a temperature of 80°C. In addition, the composite discharged over 8.8 wt% hydrogen at a comparatively lower temperature of 270°C, whereas the pure Mg(BH 4 ) 2 emitted merely 5.9 wt% hydrogen under identical circumstances, which exhibited remarkably enhanced dehydrogenation kinetics. Furthermore, upon completion of four cycles, Mg(BH 4 ) 2 ‐20Ti 3 CN retained a reversible hydrogen storage capacity of 4.5 wt%, representing an 80% improvement over the undoped Mg(BH 4 ) 2 . In the course of the dehydrogenation phase, the boron atoms in Mg(BH 4 ) 2 were anchored by nitrogen atoms in Ti 3 CN to form B‐N bonds, which helped suppress the formation of MgB 12 H 12 . During the subsequent rehydrogenation process, the B‐N bonds broke, and the boron atoms reparticipated in the reversible transformation into [BH 4 ] − clusters. Meanwhile, the formation of Ti 0 by the reaction of Mg(BH 4 ) 2 with Ti 3 CN weakened the B‐H bond energy, and the layered structure provided an effective way for hydrogen spillover. These factors collectively improved the reversible hydrogen storage capabilities of Mg(BH 4 ) 2 .","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/rar2.70017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N,W‐Cooperative Modulation of Ni ₃ S ₂ for Efficient Electrocatalytic Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid","authors":"Cheng‐Feng Yi, Jing‐Wen Li, Jiarui Li, Bing‐Chuan Xue, Xing Lin, Zhi‐Gang Liu","doi":"10.1002/rar2.70061","DOIUrl":"https://doi.org/10.1002/rar2.70061","url":null,"abstract":"ABSTRACT Ni 3 S 2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor electronic conductivity. To overcome these challenges, an N,W‐cooperative modulation of Ni 3 S 2 catalyst (N,W‐Ni 3 S 2 ), featuring an engineered crystalline‐amorphous heterostructure, is designed, utilizing 5,10,15,20‐tetraphenylporphine (TPP) as the N source. This innovative architecture integrates W‐doped crystalline Ni 3 S 2 and N‐doped amorphous carbon, which synergistically enhances charge transport and induces interfacial charge polarization, substantially boosting catalytic activity. The optimized N,W‐Ni 3 S 2 demonstrates unprecedented electrocatalytic performance for the oxidation of HMF to FDCA, achieving 100% HMF conversion, 97% FDCA yield, and 97% Faradaic efficiency, with over 95% retention in both FDCA yield and Faradaic efficiency across 10 consecutive cycles. Theoretical calculations and experimental results unveil that N incorporation exerts a more profound influence than W in reshaping the electronic landscape of Ni 3 S 2 , triggering an asymmetric electron redistribution at the heterogeneous interface. This unique electronic perturbation depletes the electron density around Ni active sites, creating an electron‐deficient state that dramatically promotes the in situ generation of NiOOH as the true active species. Furthermore, the tailored electronic environment significantly lowers the energy barrier for the rate‐determining step in the oxidation pathway, thereby enabling near‐quantitative FDCA production with high efficiency.","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"45 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/rar2.70061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molten salt synthesis of Al-substituted single-crystal NCMA cathodes: synergistic mitigation of structural degradation and enhanced electrochemical stability","authors":"Qi Guo,&nbsp;Yu Zhang,&nbsp;Jinhua Xu,&nbsp;Ting Li,&nbsp;Cuiqin Li","doi":"10.1007/s12598-025-03645-9","DOIUrl":"10.1007/s12598-025-03645-9","url":null,"abstract":"<div><p>Nickel-rich single-crystal cathode materials are considered optimal candidates for next-generation lithium-ion batteries (LIBs) due to their combination of high-energy density and crack-resistant, grain boundary-free structures. However, cyclic stress induces repetitive surface slip in single crystals, promoting the propagation of microcracks and exposing fresh crystal planes to the electrolyte. This accelerates interfacial reactions and corrosion, increasing charge transfer resistance and active material loss, ultimately degrading electrochemical performance. To address the slip-related issues in single-crystal materials, we have synthesized a single-crystal quaternary cathode: LiNi_0.8Co_0.08Mn_0.06Al_0.06O₂ (SC-NCMA), via a molten salt method. The effects of Al incorporation on suppressing lamellar slip and enhancing electrochemical performance are systematically investigated by comparing the characteristics of SC-NCMA and ternary SC-NCM. The experimental results show that SC-NCMA retains 83.0% of its capacity after 200 cycles (2.7–4.3 V), significantly higher than the 66.5% capacity retention observed for SC-NCM. In situ X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses reveal that Al incorporation expands the (003) layer spacing, suppresses Li⁺/Ni²⁺ mixing, and mitigates lattice distortion induced by the H2–H3 phase transition by reinforcing the Al–O bonds. Furthermore, Al³⁺ not only optimizes Li⁺ diffusion kinetics and reduces surface lattice oxygen loss but also facilitates the formation of a moderate-thickness cathode-electrolyte interphase (CEI) layer, enabling the pouch cell to achieve 89.1% capacity retention after 400 cycles. Overall, this work validates molten salt synthesis as a viable route for producing single-crystal quaternary cathodes and elucidates Al’s dual stabilization mechanism—through both crystal structure modulation and interfacial passivation—offering strategic insights into the development of advanced nickel-rich cathode systems.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 12","pages":"9887 - 9904"},"PeriodicalIF":11.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090870","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":"Amorphous redox host-enhanced fluoride conversion electrochemistry for high-performance lithium-ion batteries","authors":"Yu Zhao,&nbsp;Yaxuan He,&nbsp;Ling Ding,&nbsp;Xia Ma,&nbsp;Dong Yang,&nbsp;Tao Wu,&nbsp;Jing Zhu,&nbsp;Chao Zeng,&nbsp;Yanhua Cui","doi":"10.1007/s12598-025-03647-7","DOIUrl":"10.1007/s12598-025-03647-7","url":null,"abstract":"<div><p>Transition metal fluorides hold promise for high-energy lithium-ion batteries but suffer from irreversible regeneration and sluggish kinetics. Here, an amorphous composite cathode strategy to overcome these limitations is proposed. In the fabricated amorphous LiF–Co–Mo (a-LCM) composite cathodes, LiF nanoclusters are embedded in a disordered Co/Mo matrix. This unique Schottky heterojunction enables reversible order–disorder transitions during cycling, bypassing crystalline lattice constraints. The a-LCM cathode delivers an initial discharge capacity of 602 mAh g⁻¹ with 75% retention after 100 cycles, achieving a high energy density of 918 Wh kg⁻¹ and energy efficiency of 70.6%. Structural analyses reveal surface-dominated conversion mechanisms, where the amorphous matrix promotes LiF regeneration while suppressing bulk degradation. Unlike conventional composites requiring excessive conductive additives, the additive-free a-LCM leverages intrinsic metallic conductivity and interfacial Li⁺ transport pathways. This work establishes amorphous engineering as a transformative approach to reconcile energy density and cyclability in conversion-type cathodes, offering new design principles for high-performance fluoride-based lithium-ion batteries.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 12","pages":"9850 - 9864"},"PeriodicalIF":11.0,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12598-025-03647-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From laboratory to industrial scale: nickel-based catalysts for hydrogen evolution under highcurrent–density alkaline electrolysis","authors":"Wei-Wei Wang,&nbsp;Chao Chen,&nbsp;Zhong-Xiu Liu,&nbsp;Qi-Xuan Zhu,&nbsp;Yu-Xiang Xu,&nbsp;Zhi-Qiang Lu,&nbsp;Bing Zhang,&nbsp;Zhi-Peng Yu,&nbsp;Gui-Yin Xu","doi":"10.1007/s12598-025-03624-0","DOIUrl":"10.1007/s12598-025-03624-0","url":null,"abstract":"<div><p>The global energy crisis and the growing demand for sustainable energy sources have driven considerable interest in green hydrogen production via water electrolysis. Among non-noble metal catalysts, nickel-based materials have emerged as promising candidates for the hydrogen evolution reaction (HER) in alkaline media, owing to their natural abundance and intrinsic catalytic activity. However, their practical application remains hindered by poor stability under high current densities, challenges in regulating active site distribution, and obstacles to large-scale implementation. This review systematically explores the fundamental principles of alkaline water electrolysis (AWE) and alkaline anion exchange membrane water electrolysis (AEMWE), critically assesses the key barriers to commercialization of nickel-based catalysts, and discusses targeted modification strategies for high-current operation. Emphasis is placed on approaches such as electronic structure modulation, stabilization of active sites, optimization of mass transport, and mitigation of catalyst degradation. Finally, future perspectives are proposed to guide the rational design of durable nickel-based electrocatalysts and promote their integration into industrial-scale alkaline electrolyzers.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 12","pages":"9507 - 9542"},"PeriodicalIF":11.0,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090974","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}