Zhaozhen Li (, ), Tianhang Wang (, ), Jialin Sun (, ), Xiao Li (, ), Jun Zhao (, )
{"title":"Tribological behavior of graphene reinforced ceramics","authors":"Zhaozhen Li \u0000 (, ), Tianhang Wang \u0000 (, ), Jialin Sun \u0000 (, ), Xiao Li \u0000 (, ), Jun Zhao \u0000 (, )","doi":"10.1007/s40843-025-3478-4","DOIUrl":"10.1007/s40843-025-3478-4","url":null,"abstract":"<div><p>Graphene-incorporated ceramics are recognized as promising candidates for various tribological applications, including machining tools, nozzles, mechanical seals, bearings, and gears. Generally, graphene-incorporated ceramics exhibit lower friction coefficients and wear rates compared to ceramic composites reinforced by other lubricants, including CaF<sub>5</sub>, MoS<sub>2</sub>, h-BN, carbon fiber, and CNTs. This review comprehensively summarizes the current knowledge of the tribological performance of graphene-reinforced ceramics, highlighting the effects of <i>in situ</i> grown graphene, core-shell structured graphene, three-dimensional assembled graphene, and functionally graded graphene on the friction and wear properties of ceramics. <i>In situ</i> graphene forms stable lubrication films, effectively reducing the friction coefficient of the ceramic matrix. Core-shell structured graphene ceramics achieve outstanding wear resistance through rolling friction mechanisms and crack inhibition. Three-dimensional assembled graphene enhances the stability of lubrication films and contributes to superior friction reduction. Functionally graded graphene ceramics optimize internal structures, improving impact resistance and tribological stability. Furthermore, the challenges and future development directions of graphene-incorporated ceramics are discussed, highlighting their promising applications in high-temperature, extreme environments, and precision mechanical systems.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2636 - 2669"},"PeriodicalIF":7.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Changyan Zhu (, ), Mengxue Wang (, ), Ao Yang (, ), Xiaohui Yao (, ), Guangshan Zhu (, ), Chongyi Ling (, ), Zhongmin Su (, ), Min Zhang (, )
{"title":"Structure-activity relation of single-atom electrocatalysts for CO2 reduction to CH4","authors":"Changyan Zhu \u0000 (, ), Mengxue Wang \u0000 (, ), Ao Yang \u0000 (, ), Xiaohui Yao \u0000 (, ), Guangshan Zhu \u0000 (, ), Chongyi Ling \u0000 (, ), Zhongmin Su \u0000 (, ), Min Zhang \u0000 (, )","doi":"10.1007/s40843-025-3460-4","DOIUrl":"10.1007/s40843-025-3460-4","url":null,"abstract":"<div><p>Atomically dispersed single-atom catalysts (SACs) supported on graphene provide a ladder of opportunity for achieving the electrocatalytic CO<sub>2</sub> reduction to value-added chemicals, where the efficient combinations of active sites and coordination environments are a powerful approach to optimize both activity and selectivity. Nevertheless, the understanding of the underlying mechanism about how the catalytic performance varies via active sites and coordination environments is very limited. Herein, we successfully constructed the activity trend of SACs with different coordination environments (MX<sub><i>n</i></sub>Y<sub>4−<i>n</i></sub> X, Y = N, S, P, and M = 19 transition metals) for CO<sub>2</sub> reduction to CH<sub>4</sub>, using easily obtainable parameters. Based on the entire reaction free energy over 110 stable SACs, the binding strength of *OCHO intermediate (Δ<i>E</i>*<sub>OCHO</sub>) is identified as an initial activity indicator towards CO<sub>2</sub> reduction to CH<sub>4</sub>. With the help of multi-task symbolic regression, a simple active descriptor consisting of intrinsic properties (valence-electron number and electronegativity of metal atoms and coordination atoms) is further constructed, which can well describe the variation of Δ<i>E</i><sub>*OCHO</sub> and the onset potential for CH<sub>4</sub>. Importantly, this active descriptor enables rapid evaluation on the activity of SACs without DFT computations. This work is instructive for the rational design of other CO<sub>2</sub> electrocatalysts and establishing more multiplex descriptors through decoupling the factors and handling them separately.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2876 - 2886"},"PeriodicalIF":7.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structural and magnetic characterization of weberite-type RE3NbO7 (RE = Gd, Dy, Ho, and Er) ceramics with notable cryogenic magnetocaloric responses","authors":"Fengying Chen \u0000 (, ), Jiameng Xu \u0000 (, ), Xinyu Zhao \u0000 (, ), Yingzhe Na \u0000 (, ), Yikun Zhang \u0000 (, )","doi":"10.1007/s40843-025-3468-4","DOIUrl":"10.1007/s40843-025-3468-4","url":null,"abstract":"<div><p>The magnetocaloric (MC) responses of various rare-earth (RE)-dominated magnetic solids have been extensively investigated recently to develop high-performing MC materials for cryogenic cooling applications. Herein, we fabricated a family of single-phase RE-dominated magnetic ceramics, RE<sub>3</sub>NbO<sub>7</sub> (RE = Gd, Dy, Ho, and Er), via solid-state reactions and determined their structural and magnetic properties, specifically their cryogenic MC responses, through experiments and theoretical calculations. The prepared RE<sub>3</sub>NbO<sub>7</sub> ceramics all crystallize in the orthorhombic weberite-type structure (space group C222<sub>1</sub>, No. 20). The constituent elements are uniformly distributed in the RE<sub>3</sub>NbO<sub>7</sub> ceramics and are in RE<sup>3+</sup>, Nb<sup>5+</sup>, and O<sup>2−</sup> valence states. All the prepared RE<sub>3</sub>NbO<sub>7</sub> ceramics showed considerable cryogenic MC responses, identified by maximum magnetic entropy/temperature-averaged magnetic entropy changes and relative cooling power. Specifically, these MC parameters (Δ<i>H</i> = 0–7 T) comprised 33.76/30.57 J/(kg K) and 362.23 J/kg for Gd<sub>3</sub>NbO<sub>7</sub>, 19.39/18.72 J/(kg K) and 444.39 J/kg for Dy<sub>3</sub>NbO<sub>7</sub>, 18.52/18.20 J/(kg K) and 495.9 J/kg for Ho<sub>3</sub>NbO<sub>7</sub>, and 20.26/19.31 J/(kg K) and 345.45 J/kg for Er<sub>3</sub>NbO<sub>7</sub>, respectively. These values are superior to those of RE<sub>3</sub>RuO<sub>7</sub> ceramics and comparable with those of recently reported RE-dominated MC materials featuring notable MC responses, indicating the promising potential of the RE<sub>3</sub>NbO<sub>7</sub> ceramics for cooling applications.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2828 - 2840"},"PeriodicalIF":7.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zijia Qi (, ), Kai Cui (, ), Simi Sui (, ), Yuxuan Wang (, ), Haonan Xie (, ), Guangxuan Wu (, ), Yihao Cheng (, ), Enzuo Liu (, ), Fang He (, ), Chunnian He (, ), Tianshuai Wang (, ), Biao Chen (, ), Naiqin Zhao (, )
{"title":"Regulating the orbital hybridization to induce asymmetrical catalysis for efficient reversible sodium conversion storage","authors":"Zijia Qi \u0000 (, ), Kai Cui \u0000 (, ), Simi Sui \u0000 (, ), Yuxuan Wang \u0000 (, ), Haonan Xie \u0000 (, ), Guangxuan Wu \u0000 (, ), Yihao Cheng \u0000 (, ), Enzuo Liu \u0000 (, ), Fang He \u0000 (, ), Chunnian He \u0000 (, ), Tianshuai Wang \u0000 (, ), Biao Chen \u0000 (, ), Naiqin Zhao \u0000 (, )","doi":"10.1007/s40843-025-3397-0","DOIUrl":"10.1007/s40843-025-3397-0","url":null,"abstract":"<div><p>Carbon-supported single-atom catalysts (C-SACs) have been demonstrated as a strategy to promote the reversible conversion reaction of metal sulfide anodes in sodium-ion batteries (SIBs). However, the design principle of promising C-SACs remains lacking for obtaining highly reversible metal sulfide anodes. We designed a phosphorus-doped carbon-supported single-atom Mn catalyst (PC-SAMn) with an asymmetrical dual active center. The sulfiphilic Mn and sodiophilic P active centers adsorb discharged Na<sub>2</sub>S through Mn–S d-p and P–Na s-p orbital hybridizations. The asymmetrical dual active center induced the asymmetrical adsorption configuration of Na<sub>2</sub>S, which efficiently weakened Na–S bond strength and facilitated the decomposition of Na<sub>2</sub>S during charging. As a result, the designed catalyst enables typical MoS<sub>2</sub> with a record-high compositional reversible degree of 89.61% and a low capacity decay ratio of only 0.18% per 100 cycles during 2000 cycles. The research establishes the “orbital hybridization-molecular structure-catalytic activity” relationship for guiding the design of highly reversible conversion-type materials.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 9","pages":"3277 - 3287"},"PeriodicalIF":7.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yingyong Ni (, ), Kaiwen Li (, ), Xinjie Xu (, ), Xiaojiao Zhu (, ), Zhou Lu (, ), Xuan Zhao (, ), Ting Wang (, ), Junjun Wang (, ), Xingxing Chen (, ), Hongping Zhou (, )
{"title":"Photoactivated hydroxyl radical generators with highly efficient charge separation for oxygen-independent photodynamic therapy","authors":"Yingyong Ni \u0000 (, ), Kaiwen Li \u0000 (, ), Xinjie Xu \u0000 (, ), Xiaojiao Zhu \u0000 (, ), Zhou Lu \u0000 (, ), Xuan Zhao \u0000 (, ), Ting Wang \u0000 (, ), Junjun Wang \u0000 (, ), Xingxing Chen \u0000 (, ), Hongping Zhou \u0000 (, )","doi":"10.1007/s40843-025-3433-x","DOIUrl":"10.1007/s40843-025-3433-x","url":null,"abstract":"<div><p>The design of photosensitizers that can generate ·OH from water as well as efficient charge separation (CS) is integral to the hypoxic tumor photodynamic therapy (PDT). However, such ·OH photo-generators are scarcely reported, let alone those based on a simple D-<i>π</i>-A scaffold. Herein, we highlight the ·OH photo-generators TPESPyCx@BSA based on a co-assembly strategy to initiate the photocatalysis of water oxidation into ·OH as well as the efficient charge-separation for oxygen-independent PDT. The TPESPyCx@BSA were constructed by the co-assembly of a series of simple D-<i>π</i>-A scaffold tetraphenylpyridine salt TPESPyCx with BSA. The high-efficiency generation of ·OH was confirmed by the EPR trapping technique, and the isotope tracing experiments revealed that the oxygen source of ·OH generation originated exclusively from the H<sub>2</sub>O. The calculated VB potential of TPESPyCx@BSA met the thermodynamic conditions of ·OH produced by the oxidation of water. Deciphered by the transient absorbance spectra, the charge separation state was realized after the co-assembly, which guaranteed the electron transfer to generate ·OH following the oxygen-independent pathway. TPESPyCx@BSA exhibited superb photocytotoxicity even under severe anoxic conditions and excellent antitumor efficacy on <i>in vivo</i> mouse models. This work provides a strategy for constructing oxygen-independent photodynamic agents, which opens up an avenue for effective PDT against hypoxic tumors.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2919 - 2927"},"PeriodicalIF":7.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tianyu Zhong (, ), Tao Zhu (, ), Ya Li (, ), Shuqi Wang (, ), Quan Jiang (, ), Yong Zhang (, ), Yongsheng Li (, ), Yuanyuan Cao (, )
{"title":"Dual-locked SO2/nanozyme delivery nanoplatform for programmed synergistic gas/chemodynamic anticancer therapy","authors":"Tianyu Zhong \u0000 (, ), Tao Zhu \u0000 (, ), Ya Li \u0000 (, ), Shuqi Wang \u0000 (, ), Quan Jiang \u0000 (, ), Yong Zhang \u0000 (, ), Yongsheng Li \u0000 (, ), Yuanyuan Cao \u0000 (, )","doi":"10.1007/s40843-025-3393-8","DOIUrl":"10.1007/s40843-025-3393-8","url":null,"abstract":"<div><p>SO<sub>2</sub> gas-therapy provides sustained assistance for augmenting the efficacy of ROS-based modalities due to its powerful tumor microenvironment-reversing capabilities. However, the inefficient delivery and insufficient generation of SO<sub>2</sub> have greatly limited the efficacy of SO<sub>2</sub> therapy. Herein, we designed a programmed-responsive SO<sub>2</sub>/nanozyme synergistic therapeutic nanomedicine based on the polypeptide-type copolymer of poly(ethylene glycol)-<i>b</i>-poly(L-lysine) (PEG-<i>b</i>-PLL). By taking advantage of the abundant amine groups on the PLL blocks, a dual-locked SO<sub>2</sub> releasing system was fabricated by grafting SO<sub>2</sub> prodrug onto the PLL blocks through GSH-responsive covalent bonds and crosslinking the remaining amine groups with disulfide-connectors to form an outer stimulation-responsive shell. Such a dual encapsulation effectively prevented the premature release of SO<sub>2</sub> in normal cells and guaranteed its timely and sustained release, making the SO<sub>2</sub> therapeutic processes finely coordinate with the catalytic processes of nanozymes loaded in the micellar core. The well-matching of SO<sub>2</sub> and nanozyme resulted in the efficaciously remodeling of the tumor redox microenvironment, thus significantly enhancing the overall efficacy of chemodynamic therapy (CDT). This optimized multimodal cooperation strategy provides delicate control for improving the synergistic therapeutic efficiencies, which is anticipated to advance the ROS-based cancer treatments.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2899 - 2909"},"PeriodicalIF":7.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jingjing Chen (, ), Yuqi Liu (, ), Jie Di (, ), Pengcheng Mao (, ), Jie Liu (, ), Wenbin Hu (, ), Cheng Zhong (, )
{"title":"Improving the initial Coulombic efficiency of phenolic resin-derived hard carbon anodes for sodium-ion batteries by pore-forming","authors":"Jingjing Chen \u0000 (, ), Yuqi Liu \u0000 (, ), Jie Di \u0000 (, ), Pengcheng Mao \u0000 (, ), Jie Liu \u0000 (, ), Wenbin Hu \u0000 (, ), Cheng Zhong \u0000 (, )","doi":"10.1007/s40843-025-3394-6","DOIUrl":"10.1007/s40843-025-3394-6","url":null,"abstract":"<div><p>Hard carbon (HC), one of the most prospective commercialized anode for sodium-ion batteries, attracts wide attention owing to its disordered structure and expanded interlayer spacing, which can allow for sodium ions intercalation/deintercalation. However, the poor initial Coulombic efficiency (ICE) of HC has hindered its large-scale application. Among the precursors employed to prepare HC, phenolic resin (PF) shows a high yield carbon content and good reversible capacity. Herein, the relationship between PFs and ICE has been explored using four commercial phenolic resin-based hard carbons with different solid contents. Then, these pure phenolic resins were modified by adding pores-forming agents, cross-linking curing, and ball-milling. We improve these samples’ ICE beyond 86%. The U-HC sample, characterized by the highest solid-content phenolic resin-modified hard carbon, achieves an impressive ICE of 89.84% and delivers a specific discharge capacity of approximately 354.18 mAh g<sup>−1</sup> at 35 mA g<sup>−1</sup>. This study deepens the understanding of phenolic resin-based hard carbon and offers valuable guidance for achieving high ICE in such materials.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 9","pages":"3258 - 3266"},"PeriodicalIF":7.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yanwei Zhu (, ), Li Tao (, ), Ru Chen (, ), Xian-Zhu Fu (, ), Shuangyin Wang (, )
{"title":"Mechanistic insights into atomic-to-nanoscale synergistic electrocatalysis","authors":"Yanwei Zhu \u0000 (, ), Li Tao \u0000 (, ), Ru Chen \u0000 (, ), Xian-Zhu Fu \u0000 (, ), Shuangyin Wang \u0000 (, )","doi":"10.1007/s40843-025-3415-3","DOIUrl":"10.1007/s40843-025-3415-3","url":null,"abstract":"<div><p>The integration of multi-scale active sites has emerged as a promising strategy to overcome the intrinsic limitations of each individual component in electrocatalysis. While single-atom catalysts (SACs) enable maximum atomic utilization and well-defined coordination environments, nanoparticles/clusters (NPs/CLs) deliver superior electronic adaptability. However, the synergistic combination introduces complex interfacial interactions that significantly influence reaction pathways, intermediate transport, and microenvironment modulation, yet these effects remain insufficiently understood. This review systematically analyzes recent advances of NPs/CLs-SACs in electrocatalysis, mainly including the local reaction environment and coordinating reaction pathways. NPs/CLs-SACs systems enable unique optimization of electronic structures, stabilization/transport of key intermediates, and decoupling of multi-step reaction pathways. We classify and analyze three major synergistic catalytic modes, including co-adsorption catalysis, tandem catalysis, and parallel adsorption for coupling reactions. Finally, we identify key challenges in synthesis, stability, and mechanism understanding, while outlining future directions for the rational design of sustainable catalytic technologies.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2587 - 2600"},"PeriodicalIF":7.4,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lei Li (, ), Qiuhan Cao (, ), Xiaoyi Dong (, ), Xin Yu (, ), Hu Yao (, ), Shiqi Zeng (, ), Xiaohui Guo (, )
{"title":"Interface coupling induced electronic effect of NiCo-LDH/Cu2O heterojunction catalysts towards efficient electrochemical nitrate reduction to ammonia","authors":"Lei Li \u0000 (, ), Qiuhan Cao \u0000 (, ), Xiaoyi Dong \u0000 (, ), Xin Yu \u0000 (, ), Hu Yao \u0000 (, ), Shiqi Zeng \u0000 (, ), Xiaohui Guo \u0000 (, )","doi":"10.1007/s40843-025-3430-0","DOIUrl":"10.1007/s40843-025-3430-0","url":null,"abstract":"<div><p>The electrocatalytic nitrate reduction reaction to ammonia (NO<sub>3</sub>RR) can reduce pollution and conserve energy, but current catalyst activity still fails to meet production requirements, primarily due to insufficient atomic hydrogen (H*) supply and slow hydrogenation of oxynitride intermediates. This work leverages the strong nitrate adsorption capability of cuprous oxide (Cu<sub>2</sub>O) and interfacial coupling between NiCo layered double hydroxides (NiCo-LDH) and Cu<sub>2</sub>O to fabricate a nanocomposite catalyst (NiCo-LDH/Cu<sub>2</sub>O) via a facile hydrothermal method. By adjusting the metal ratio to modulate proton absorption behavior, the NiCo-LDH/Cu<sub>2</sub>O catalyst can achieve high ammonia yield (0.382 mmol h<sup>−1</sup> cm<sup>−2</sup>) and desired Faraday efficiency (80.4%). The experimental results demonstrate that the interfacial coupling interaction between NiCo-LDH and Cu<sub>2</sub>O induces optimal electronic effects, and then promotes the adsorption and activation of reaction intermediates, as well as optimizes the reaction pathway, and significantly enhances the electrochemical ammonia synthesis performance. Our constructed NiCo-LDH/Cu<sub>2</sub>O catalysis system provides a feasible strategy for the development of efficient and cost-effective NO<sub>3</sub>RR applications.</p></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2742 - 2748"},"PeriodicalIF":7.4,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yin Ma (, ), Da Xiong (, ), Yutong Meng (, ), Yao Lu (, ), Peiyu Duan (, ), Bo Chen (, ), Yahui Yang (, ), Xiangping Chen (, ), Liqiu Mao (, ), Xiongwei Wu (, ), Lishan Yang (, )
{"title":"Hierarchical-porous V-MOF cathodes enabling high-performance aqueous zinc-ion hybrid batteries","authors":"Yin Ma \u0000 (, ), Da Xiong \u0000 (, ), Yutong Meng \u0000 (, ), Yao Lu \u0000 (, ), Peiyu Duan \u0000 (, ), Bo Chen \u0000 (, ), Yahui Yang \u0000 (, ), Xiangping Chen \u0000 (, ), Liqiu Mao \u0000 (, ), Xiongwei Wu \u0000 (, ), Lishan Yang \u0000 (, )","doi":"10.1007/s40843-025-3436-x","DOIUrl":"10.1007/s40843-025-3436-x","url":null,"abstract":"<div><p>Rechargeable aqueous zinc-ion batteries have emerged as promising candidates for grid-scale energy storage, owing to their inherent safety, cost-effectiveness, and stability. However, the development of advanced cathodes that integrate suitable redox-active metal centers, robust structural resilience, and hierarchical architectures to facilitate rapid ion diffusion remains challenging. This study presents a hierarchically porous vanadium-based metal-organic framework (h-V-MOF) as a multifunctional cathode material that synergistically combines superior electrolyte affinity, reversible structural evolution during cycling, and maximized vanadium redox accessibility. The engineered <i>h</i>-V-MOF cathode demonstrates exceptional Zn<sup>2+</sup> storage performance, delivering a remarkable specific capacity of 304.1 mAh g<sup>−1</sup> and excellent long-term cyclability with 92.3% capacity retention after 2000 cycles at 5.0 A g<sup>−1</sup>. Mechanistic investigations reveal a unique battery-supercapacitor hybrid storage behavior, where the hierarchical porosity enables efficient ion adsorption for electric double-layer capacitance and stable redox-driven Zn<sup>2+</sup> insertion/extraction. This hybrid energy storage mechanism, coupled with the material’s ultrahigh specific surface area (1162.5 m<sup>2</sup> g<sup>−1</sup>), significantly enhances charge storage density. Our findings not only advance the fundamental understanding of MOF-based energy storage systems but also establish a universal design paradigm for developing multifunctional electrodes for next-generation hybrid energy devices.</p></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2764 - 2774"},"PeriodicalIF":7.4,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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