Advanced Sustainable Systems最新文献_第3页

Engineering Multifunctional S-Scheme Sn-MOF/NiFe2O4 Heterostructure for Abolition and Detection of Contaminants: In-Silico Ecotoxicity Assessment and DFT-Assisted Mechanism Elucidation 工程多功能S-Scheme Sn-MOF/NiFe2O4异质结构去除和检测污染物：硅生态毒性评估和dft辅助机制阐明

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-11 DOI: 10.1002/adsu.202500610

Simranjeet Kaur, Twinkle Garg, Abhivyakti, Sonam, Nitansh, Shweta Rana, Sonal Singhal, Neetu Goel

{"title":"Engineering Multifunctional S-Scheme Sn-MOF/NiFe2O4 Heterostructure for Abolition and Detection of Contaminants: In-Silico Ecotoxicity Assessment and DFT-Assisted Mechanism Elucidation","authors":"Simranjeet Kaur, Twinkle Garg,  Abhivyakti,  Sonam,  Nitansh, Shweta Rana, Sonal Singhal, Neetu Goel","doi":"10.1002/adsu.202500610","DOIUrl":"https://doi.org/10.1002/adsu.202500610","url":null,"abstract":"Amalgamation of advantages of the adsorption and photocatalytic degradation process encouraged the designing of multifunctional S-scheme Tin-dicarboxylate metal-organic framework (Sn-MOF)/Nickel ferrite (NF) heterostructures (SBNF-x, x = 10, 20 and 30). The fabricated heterostructures are applied for the adsorptive-photodegradation of Methylene Blue (MB) from an aqueous medium. SBNF-20 demonstrated the maximum MB removal (≈98%), complying with pseudo-first-order kinetics. The rate constant value for SBNF-20 is discovered to be 38.0- and 5.5-times pristine Sn-MOF and NF, respectively. Moreover, density functional theory (DFT) analysis is employed to obtain the global and local reactivity descriptors. The global reactivity descriptors showed MB as the most reactive dye for the initial adsorption phenomenon. Meanwhile, Fukui functions and Liquid chromatography-mass spectroscopy (LC-MS) technique revealed the possible degradation pathways. The ecotoxicity profile of generated reaction intermediates are assessed using in silico toxicity analysis. Further, fluorescent SBNF-20 is utilized for the selective and sensitive Fluorescence detection (FL) of Uranium U(VI), with a limit of detection of as low as 15.0 µM. The practical applicability of the sensor is confirmed by real sample analysis. The recyclability test corroborated the reusability and stability of SBNF-20. Thus, the findings of the designed multifunctional system have great potential prospects for wastewater treatment.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Genetically Engineered Pseudomonas aeruginosa Enhances Siderophore-Mediated Iron Recovery from Coal Fly Ash 基因工程铜绿假单胞菌促进铁载体从粉煤灰中回收铁

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-09 DOI: 10.1002/adsu.202500366

Yingjie Song, Derong Dai, Qinqin Ma, Rui Bao

{"title":"Genetically Engineered Pseudomonas aeruginosa Enhances Siderophore-Mediated Iron Recovery from Coal Fly Ash","authors":"Yingjie Song, Derong Dai, Qinqin Ma, Rui Bao","doi":"10.1002/adsu.202500366","DOIUrl":"https://doi.org/10.1002/adsu.202500366","url":null,"abstract":"Microbial siderophores, potent iron-chelating molecules, offer significant promise for the bioremediation of heavy metal-contaminated industrial wastes. However, their large-scale application remains limited by biological and environmental constraints. In this study, a genetically engineered strain of Pseudomonas aeruginosa, designated BR01, developed by introducing the plasmid pRK-bfmR is presented. Integrated proteomic and transcriptional assays reveal that overexpression of the osmolality-responsive regulator BfmR reprograms cellular metabolism, enhancing iron acquisition pathways while downregulating virulence-associated and non-essential metabolic processes. As a result, strain BR01 demonstrates a 3.82-fold increase in siderophore production (P < 0.01) and a 2.95-fold enhancement in iron extraction from coal fly ash (P < 0.01) compared to the wild type. Further optimization of growth conditions boosts siderophore yield by an additional 1.73–2.48 times (P < 0.01). Moreover, the engineered strain shows improved tolerance to cadmium (Cd) and lead (Pb), indicating its robustness in harsh industrial environments. These findings underscore the potential of genetically optimized bacteria to enhance the sustainability of bioremediation technologies.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Atomic Insights into Pt-Confined FeO Model Catalyst: Surface Structure and NH3 Adsorption pt约束FeO模型催化剂的原子洞察：表面结构和NH3吸附

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-09 DOI: 10.1002/adsu.202500357

Hexin Zhang, Shengdi Zhao, Yun Liu, Youbin Wu, Yan Zhang, Yuanpeng Wang, Wenpo Shan, Hong He

{"title":"Atomic Insights into Pt-Confined FeO Model Catalyst: Surface Structure and NH3 Adsorption","authors":"Hexin Zhang, Shengdi Zhao, Yun Liu, Youbin Wu, Yan Zhang, Yuanpeng Wang, Wenpo Shan, Hong He","doi":"10.1002/adsu.202500357","DOIUrl":"https://doi.org/10.1002/adsu.202500357","url":null,"abstract":"Iron oxides (FeOx), a cost-effective and versatile transition metal oxide, are pivotal in heterogeneous catalysis due to their exceptional redox activity and tunable surface structures. In this study, the growth mechanisms of iron monoxide (FeO) thin films on Pt(100) substrate and the adsorption behaviors of NH3 on these films are systematically investigated using low-temperature scanning tunneling microscopy (LT-STM) and X-ray photoelectron spectroscopy (XPS). Based on the FeO(111)/Pt(100) model system prepared by molecular beam epitaxy (MBE), the influence of the substrate on the atomic arrangement of Fe and O, surface structural stability, and NH3 adsorption behavior of FeO thin films is investigated. Stoichiometric and oxygen-rich FeO(111) surfaces on Pt(100) are prepared by tuning overlayer thickness and characterized at the atomic scale via scanning tunneling microscopy (STM). In situ XPS experiments demonstrate nondissociative adsorption of NH3 on the regular sites of FeO/Pt(100), but the unclosed FeO/Pt interfacial sites promote NH3 dissociation into NH2 species. Furthermore, this study reveals that the FeO-Pt(100) system exhibits an interfacial confinement effect analogous to that observed in the FeO-Pt(111) system. These findings provide theoretical guidance for the atomic-scale design of oxide-metal thin films and elucidate strategies to enhance the catalytic efficiency of environmental catalysts.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

FePc-rGO/PAN Heterostructured 2D Photothermal Membranes with Multi-Scale Synergistic Effects: High-Efficiency Solar Desalination via Electrospun Hierarchical Design 具有多尺度协同效应的FePc-rGO/PAN异质结构二维光热膜：基于电纺丝分层设计的高效太阳能脱盐

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-09 DOI: 10.1002/adsu.202500537

Xu Han, Yun Tao, Yanxiao Bian, Jinrui Chen, Xu Shao, Xianhong Zheng, Peng Wang

{"title":"FePc-rGO/PAN Heterostructured 2D Photothermal Membranes with Multi-Scale Synergistic Effects: High-Efficiency Solar Desalination via Electrospun Hierarchical Design","authors":"Xu Han, Yun Tao, Yanxiao Bian, Jinrui Chen, Xu Shao, Xianhong Zheng, Peng Wang","doi":"10.1002/adsu.202500537","DOIUrl":"https://doi.org/10.1002/adsu.202500537","url":null,"abstract":"Solar-driven desalination faces critical challenges in achieving full-spectrum solar utilization and anti-salts capacity during photothermal conversion. Although the reduced graphene oxide (rGO) exhibits broadband solar spectral absorption, its limited visible-light harvesting and salt resistance ability constrain practical performance. Herein, a 2D FePc-rGO/PAN photothermal membrane via electrospinning is reported. In which, Polyacrylonitrile (PAN) is designed as a fibrous substrate to effectively stabilize the heterostructured porous FePc/rGO, achieving a hierarchical architecture from micron-sized cross-linked fiber networks, nanoscale surface porosity, to molecular arrangements. This composite membrane shows a high solar conversion efficiency of 93.45% compared to that of the prepared 1.5%GO-PAN (74.89%). Under one sun illumination, FePc-rGO/PAN with the hierarchical structure exhibits a maximum evaporation rate of 5.79 kg m−2 over 2 h irradiation. The enhanced desalination performance of the rGO/FePc-PAN is partially attributed to the light absorption enhancement by FePc in the visible spectrum (400–700 nm), the near-infrared region (1500–2400 nm) and the interactions between FePc and rGO. Additionally, the low surface activity of FePc molecules contributes to the anti-salt deposition capability of the rGO/FePc-PAN, while maintaining a stable membrane structure after repeated water washing cycles.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Application of a Dynamic Semitransparent Agrivoltaic Panel for Controlling Sunlight Allocation to Solar Cells and Crops 动态半透明农业光伏板在控制太阳能电池和农作物的日照分配中的应用

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-09 DOI: 10.1002/adsu.202500603

Akira Yano, Zhi Li

{"title":"Application of a Dynamic Semitransparent Agrivoltaic Panel for Controlling Sunlight Allocation to Solar Cells and Crops","authors":"Akira Yano, Zhi Li","doi":"10.1002/adsu.202500603","DOIUrl":"https://doi.org/10.1002/adsu.202500603","url":null,"abstract":"Deployment of photovoltaic (PV) panels over croplands (agrivoltaics), while using limited available land, provides the potential to alleviate energy instability and food supply instability exacerbated by climate change. The key to sustaining or improving agrivoltaic crop yields is PV panel semi-transparency. This study assesses effects of dynamic shading control and effects of PV semi-transparency on plant seedling growth. A temperature-controlled growth chamber with a lamp reproducing the solar irradiance transition of a sunny, summer day enables seedling response evaluation. A PV module with sparsely embedded micro-solar cells allowing for interstitial transparency, inserted between the lamp and cucumber seedlings, shades light throughout simulated daytime or temporarily around midday (9:30–14:30) when irradiance exceeds 800 W m−2. Shading from the PV panel mitigates any increase in seedling temperature. The continuous PV shadow elongates spindly seedling hypocotyls. The temporary shading has no adverse effect on the dry matter accumulation of seedlings, whereas continuous shading suppresses it. These results demonstrate the benefits of temporary midday shading to sustain normal crop growth with agrivoltaics. The dynamically operated semi-transparent PV operation enables more granular and efficient apportionment of electrical energy and crop production.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202500603","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Upcycling Agricultural Waste: Gossypium Herbaceum Shell-Derived Hard Carbon Sodium-Ion Battery Anodes 农业废弃物的升级利用：棉壳衍生的硬碳钠离子电池阳极

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-09 DOI: 10.1002/adsu.202500244

Shruti Sinha, Kenil Rajpura, Indrajit Mukhopadhyay

{"title":"Upcycling Agricultural Waste: Gossypium Herbaceum Shell-Derived Hard Carbon Sodium-Ion Battery Anodes","authors":"Shruti Sinha, Kenil Rajpura, Indrajit Mukhopadhyay","doi":"10.1002/adsu.202500244","DOIUrl":"https://doi.org/10.1002/adsu.202500244","url":null,"abstract":"Cotton shells derived hard carbon is synthesized by carbonization in Ar atmosphere at 800°C for 2 h. XRD analysis proves the amorphous nature of the hard carbon. The Raman spectroscopy shows the presence of a higher degree of defects in the Cotton-shell-derived hard carbon (CC). The Phosphoric acid-treated cotton shell-derived hard carbon (PCC) shows a higher Id/Ig ratio than the CC implying the generation of more active defect sites, which is supported from BET, FESEM, and TEM analysis. The CV results indicate that the PCC favors better sodium ion diffusion into the carbon matrix than CC electrode. Electrochemical Impedance Spectroscopy (EIS) shows a low charge transfer resistance of only 25 Ω for PCC electrode which is rather high (110 Ω) in the case of CC electrode. PCC offers capacity 350 mAhg−1 in the initial cycles, and stabilising at ≈300 mAhg−1 after 300 cycles. The CC electrode displays capacities of 310 mAhg−1 with a retention of 91%, while the PCC electrode gives capacities of 350 mAhg−1 with a retention of 96% at 0.03 Ag−1. The phosphoric acid treatment generates more active defect sites to accommodate sodium ions into the carbon matrix, which facilitates electrochemical performance.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhancing Durability, Elasticity, and Resilience in Eco-Friendly Asphalt: Calcium-Induced Cross-Linking of Bio-Modified Binder 提高环保沥青的耐久性、弹性和回弹性：钙诱导的生物改性粘合剂的交联

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-09 DOI: 10.1002/adsu.202500268

Farideh Pahlavan, Albert M. Hung, Mohammadjavad Kazemi, Elham H. Fini

{"title":"Enhancing Durability, Elasticity, and Resilience in Eco-Friendly Asphalt: Calcium-Induced Cross-Linking of Bio-Modified Binder","authors":"Farideh Pahlavan, Albert M. Hung, Mohammadjavad Kazemi, Elham H. Fini","doi":"10.1002/adsu.202500268","DOIUrl":"https://doi.org/10.1002/adsu.202500268","url":null,"abstract":"This study presents a novel approach to enhancing the elasticity and durability of bio-asphalt by inducing calcium crosslinking in bio-oil through the formation of calcium–carboxylate complexes. Experimental results show that the crosslinked binder exhibits up to an 18% increase in elastic recovery, as confirmed by Multiple Stress Creep Recovery (MSCR) tests. The improved performance is attributed to the formation of a robust internal network between CaCl₂ and fatty acid groups in the bio-oil, which enhances elasticity and reduces permanent deformation under repeated loading. Density Functional Theory (DFT) calculations reveal strong coordination between Ca2⁺ ions and carboxylate groups, with stepwise interaction energies of −339.4, −193.2, and −79.3 kcal mol−1 for the first, second, and third oleate ligands, respectively. This coordination limits the mobility of hydrophilic acidic components, reducing their migration to siliceous surfaces—a key mechanism associated with moisture-induced damage. FTIR and contact angle measurements confirm improved resistance to dewetting and moisture exposure in CaCl₂-doped bio-bitumen. Additionally, the crosslinked structure inhibits alkane stacking, which contributes to resistance against low-temperature cracking. Beyond performance, this method supports sustainability by utilizing a low-energy curing process and renewable bio-based materials. The findings demonstrate the potential of calcium-induced crosslinking to address multiple limitations of bio-modified binders and provide a viable path toward more resilient and environmentally friendly asphalt pavements.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

WS2 Composites with Chitosan Derived Hard Carbon as High-Performance Negative Electrode Material for Sodium-Ion Batteries 壳聚糖硬碳WS2复合材料作为钠离子电池高性能负极材料

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-06 DOI: 10.1002/adsu.202500469

Bristisnata Kashyap, Dimple P. Dutta, Dipa Dutta Pathak

引用次数: 0

Multi-Heterogeneous Interfaces Modulation of NiO/MoO3/Fe2O3 for Enhanced Water/Seawater Splitting NiO/MoO3/Fe2O3多非均相界面调制促进水/海水分裂

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-02 DOI: 10.1002/adsu.202500495

Liqiang Hou, Jianpeng Sun, Chaoyue Sun, Yanan Zhang, Zijian Li, Shangguo Liu, Xien Liu

{"title":"Multi-Heterogeneous Interfaces Modulation of NiO/MoO3/Fe2O3 for Enhanced Water/Seawater Splitting","authors":"Liqiang Hou, Jianpeng Sun, Chaoyue Sun, Yanan Zhang, Zijian Li, Shangguo Liu, Xien Liu","doi":"10.1002/adsu.202500495","DOIUrl":"https://doi.org/10.1002/adsu.202500495","url":null,"abstract":"The rational design of multi-component heterostructures represents a promising strategy to overcome the intrinsic limitations of single-phase Mo-based electrocatalysts for water splitting. Herein, a ternary NiO/MoO3/Fe2O3 heterostructure catalyst synthesized is reported via a facile chemical corrosion and annealing approach. The synergistic interplay between multiple heterogeneous interfaces induces significant electronic redistribution, optimizing adsorption energetics for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) intermediates. The catalyst achieves exceptional bifunctional performance, requiring ultralow overpotentials of 395 mV (HER) and 370 mV (OER) at industrial-grade current density (1 A cm−2) in alkaline media, surpassing benchmark Pt/C and RuO2. Notably, the ternary interface configuration mitigates metal dissolution, ensuring long-term stability in both freshwater and simulated seawater electrolytes. Through comprehensive experimental characterization and theoretical calculations, the dual-channel electron transfer mechanism is elucidated, and complementary active-site interactions are responsible for the enhanced kinetics. This work provides a blueprint for engineering high-efficiency ternary electrocatalysts through interfacial modulation, advancing the development of practical water-splitting systems.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Carbon Defect-Induced Electronic Metal-Support Interaction on Iridium Sites for Robust Water Splitting in Acidic Media 碳缺陷诱导的铱位上电子金属-载体相互作用对酸性介质中水的强劈裂作用

IF 6.1 3区材料科学

Advanced Sustainable Systems Pub Date : 2025-07-02 DOI: 10.1002/adsu.202500561

Xin Wang, Chenlong Zhang, Jiawei Bai, Lubo Zhang, Lei Wang, Hao Chen, Kejie Dong, Xin Liang, Huiling Zhou, Guojing Zhang, Yi Jia

{"title":"Carbon Defect-Induced Electronic Metal-Support Interaction on Iridium Sites for Robust Water Splitting in Acidic Media","authors":"Xin Wang, Chenlong Zhang, Jiawei Bai, Lubo Zhang, Lei Wang, Hao Chen, Kejie Dong, Xin Liang, Huiling Zhou, Guojing Zhang, Yi Jia","doi":"10.1002/adsu.202500561","DOIUrl":"https://doi.org/10.1002/adsu.202500561","url":null,"abstract":"Developing efficient and robust bifunctional catalysts for acidic oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is critical for reducing the total cost and improving the large-scale commercialization of proton exchange membrane water electrolyzer (PEMWE) technology. Herein, a composite catalyst consisted with low-loading small Ir nanoparticles (average diameter of only 2 nm) supported on defective graphene (Ir@DG) is synthesized, which exhibits remarkable catalytic activity for both OER and HER in an acidic electrolyte, with the overpotentials of merely 297 and 27 mV to afford 10 mA cm−2, respectively. Combined theoretical and experimental studies reveal that the strong electronic metal-support interactions can improve the asymmetry of charge distribution on the Ir-carbon defect interface to decrease the reaction barrier. Furthermore, the hybrid catalyst is also applied in a homemade PEMWE device to demonstrate its high performance in a practical working condition. This unique defect-based coupling strategy provides a promising avenue to tradeoff the performance-cost contradiction for PEMWE application.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 9","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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