Small Science最新文献_第4页

Riveted Interconnections of Capacitance-Matched MXene-Based Yarn Supercapacitors Enable Seamless Energy Integration in Textiles. 电容匹配的mxens纱线超级电容器的铆接互连使纺织品中的无缝能量集成成为可能。

IF 8.3

Small Science Pub Date : 2025-07-06 eCollection Date: 2025-09-01 DOI: 10.1002/smsc.202500229

Neeraj Kumar, Patryk Wojciak, Shayan Seyedin

{"title":"Riveted Interconnections of Capacitance-Matched MXene-Based Yarn Supercapacitors Enable Seamless Energy Integration in Textiles.","authors":"Neeraj Kumar, Patryk Wojciak, Shayan Seyedin","doi":"10.1002/smsc.202500229","DOIUrl":"10.1002/smsc.202500229","url":null,"abstract":"Electronic textiles are a transformative technology set to revolutionize next-generation wearable devices. However, a major challenge is making efficient yarn-based energy systems that power flexible wearables while blending seamlessly into textiles for unobstructed applications. Herein, 2D materials-coated yarn supercapacitors (YSCs) are designed, offering a promising solution through capacitance-matched electrode fabrication and a novel customizable riveted interconnection strategy for textile integration. MXene-coated cotton yarns (negative electrode) achieve a remarkable specific capacitance of ≈7 360 mF cm-2 (≈536 F g-1). To complement the negative electrode, a positive yarn electrode (rGO/MoS2) is developed through a tailored synthesis process. A device fabrication strategy based on matching the capacitance of the yarn electrodes enhances the performance of YSCs, achieving an impressive specific capacitance of ≈658 mF cm-2 (≈53 F g-1), power density of ≈8,147 μW cm-2 (≈650 W kg-1), and energy density of ≈154.5 μWh cm-2 (≈12.3 Wh kg-1). The practical applicability of the YSCs is demonstrated via a novel yet simple integration design, whereby YSCs are connected to conductive rivets, which serve as buttons capable of toggling charge/discharge and easy removal from clothes for washing. The advancements made in this work enable on-the-go powering of wearable health systems, displays, and the Internet of things.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 9","pages":"2500229"},"PeriodicalIF":8.3,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12412493/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145016318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Perovskite Quantum Dot-Enhanced Silicon Photodetectors for High-Performance Infrared Sensing. 用于高性能红外传感的钙钛矿量子点增强硅光电探测器。

IF 8.3

Small Science Pub Date : 2025-07-03 eCollection Date: 2025-09-01 DOI: 10.1002/smsc.202500170

Dohun Baek, Eunseo Nam, Su Min Park, Jeongbeom Cha, Haedam Jin, Hyeongyu Kim, Jihun Lee, Kihyun Kim, Min Kim

引用次数: 0

Mechanically Tunable Biofabricated Channels Enable Mimicking Arterial Pulsatility and Dynamic Tissue Actuation. 机械可调的生物制造通道可以模拟动脉搏动和动态组织驱动。

IF 8.3

Small Science Pub Date : 2025-06-30 eCollection Date: 2025-09-01 DOI: 10.1002/smsc.202500176

Cécile Bosmans, Malin Becker, Liliana S Moreira Teixeira, Jeroen Leijten

{"title":"Mechanically Tunable Biofabricated Channels Enable Mimicking Arterial Pulsatility and Dynamic Tissue Actuation.","authors":"Cécile Bosmans, Malin Becker, Liliana S Moreira Teixeira, Jeroen Leijten","doi":"10.1002/smsc.202500176","DOIUrl":"10.1002/smsc.202500176","url":null,"abstract":"Dynamic alteration of blood vessel geometry is an inherent feature of the circulatory system. However, while the engineering of multiscale, branched, and interconnected blood vessels has been well explored, mimicking the dynamic behavior (e.g., pulsatile blood flow) of native arterial vessels has remained understudied. This is surprising because the natural pulsatile flow and subsequent dynamic deformation of arteries provide physiologically relevant mechanical actuation to proximal cells and tissues, contributing to both tissue homeostasis and disease progression. Yet, many tissue engineering efforts and Organ-on-Chip developments have focused on replicating vessel structure, while overlooking the native mechanical dynamicity that governs arterial tissue function. Here, the development of an on-demand tunable elastic hydrogel is reported, composed of tyramine-conjugated alginate, offering controlled, reversible dilation under physiologically relevant flow. Exploring casted and 3D bioprinted channels, how vessel dilation influences shear stresses in relation to vessel compliance is investigated. This approach is demonstrated to allow for hydrodynamic mechanodeformation and stimulation of engineered tissues. Moreover, it is revealed that pulsatile flow deformation alters compound penetration rates (e.g., nutrients and pharmaceuticals) into surrounding tissues. Finally, the spatially controlled stiffening of engineered blood vessels is demonstrated to locally limit the dilation, modeling blood vessel diseases such as stenosis or aneurysm.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 9","pages":"2500176"},"PeriodicalIF":8.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12412620/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145016397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Near-Field Optical Nanopatterning of Graphene. 石墨烯的近场光学纳米图。

IF 8.3

Small Science Pub Date : 2025-06-30 eCollection Date: 2025-08-01 DOI: 10.1002/smsc.202500184

Gour Mohan Das, Eero Hulkko, Pasi Myllyperkiö, Andreas Johansson, Mika Pettersson

{"title":"Near-Field Optical Nanopatterning of Graphene.","authors":"Gour Mohan Das, Eero Hulkko, Pasi Myllyperkiö, Andreas Johansson, Mika Pettersson","doi":"10.1002/smsc.202500184","DOIUrl":"10.1002/smsc.202500184","url":null,"abstract":"2D materials are emerging as transformative platforms for next-generation memory, sensing, photonic, and quantum devices due to their extraordinary optical, mechanical, and electronic properties. A key challenge is achieving controlled and precise nanopatterning to unlock tailored functionalities. This work uses a direct laser writing method to introduce a near-field-mediated nanopatterning technique that delivers ≈10-30 nm lateral and sub-5 nm vertical modification on graphene under ambient conditions. This approach uses a pulsed femtosecond laser in the visible wavelength range with scattering-type scanning near-field optical microscopy (s-SNOM), where the s-SNOM tip serves as a nanoscale probe. The resultant nanopatterns exhibit highly symmetric, periodic nanoscale holes with spherical perforations (nanopunch holes), with 5-25 nm dimensions. Importantly, nano- Fourier transform infrared spectroscopy reveals selective oxidative functionalization at the periphery of the nanopunch holes, highlighting a controlled surface modification of graphene. By finely tuning experimental parameters such as laser exposure time, the nanopatterning feature size ranging from 1-30 nm, and the resulting shapes from nanoscale elevated structures (nanoblister shape) to punched holes can be precisely modulated. This nanopatterning strategy achieves feature sizes at the sub-10 nm scale and represents an advancement toward fabricating all-2D material devices, setting new benchmark in nanoscale manufacturing for quantum and photonic technologies.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 8","pages":"2500184"},"PeriodicalIF":8.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12362822/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144971973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Beta-Radiation-Resistant Anticorrosion Coatings Based on Lignin. 基于木质素的β -耐辐射防腐涂料。

IF 8.3

Small Science Pub Date : 2025-06-30 eCollection Date: 2025-09-01 DOI: 10.1002/smsc.202500007

Ievgen Pylypchuk, Oleg Tkachenko, Tetyana Budnyak, Mika Sipponen

{"title":"Beta-Radiation-Resistant Anticorrosion Coatings Based on Lignin.","authors":"Ievgen Pylypchuk, Oleg Tkachenko, Tetyana Budnyak, Mika Sipponen","doi":"10.1002/smsc.202500007","DOIUrl":"10.1002/smsc.202500007","url":null,"abstract":"As humanity ventures beyond Earth, developing radiation-stable coatings from non-fossil sources becomes essential. Beta radiation can significantly harm materials, making it essential to seek resilient, biobased alternatives to work in corrosive environments and high temperatures. Herein, a novel lignin-based coating demonstrating exceptional beta-radiation resistance and anticorrosion properties is presented. The coatings are applied to copper substrates and exposed to 500 kGy electron beam irradiation in air to evaluate their structural and functional stability under extreme conditions. Spectroscopic, microscopic, and thermogravimetric analyses confirm the structural integrity of the coatings post-irradiation. Anticorrosion efficiencies after irradiation are maintained at 99.6% (H2SO4) and 99.8% (NaCl) for 61 μm thick films, while thinner 9.5 μm films show 86.4% and 85.7% protection in the respective media, with a ≈4% performance drop post-irradiation. Adhesion strength improves from 0.28 to 0.49 MPa after irradiation, and the water contact angle decreases from 74° to 66°, indicating an increase in hydrophilicity. The superior performance is attributed to the aromatic structure of lignin and its thermally triggered cyclization, which renders it stable against chemical chain scission by oxygen radicals formed in atmospheric conditions under radiation exposure. The performance of thicker films in anticorrosion tests is attributed to a reduced penetration of corrosive agents, due to better morphological integrity. These findings demonstrate the viability of lignin-based coatings as radiation-stable and environmentally sustainable solutions for protecting metal surfaces in harsh environments.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 9","pages":"2500007"},"PeriodicalIF":8.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12412574/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145016277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in Flexible and Wearable Gas Sensors Harnessing the Potential of 2D Materials. 利用二维材料潜力的柔性和可穿戴气体传感器的最新进展。

IF 8.3

Small Science Pub Date : 2025-06-30 eCollection Date: 2025-08-01 DOI: 10.1002/smsc.202500025

Azmira Jannat, Md Mehdi Masud Talukder, Zhong Li, Jian Zhen Ou

{"title":"Recent Advances in Flexible and Wearable Gas Sensors Harnessing the Potential of 2D Materials.","authors":"Azmira Jannat, Md Mehdi Masud Talukder, Zhong Li, Jian Zhen Ou","doi":"10.1002/smsc.202500025","DOIUrl":"10.1002/smsc.202500025","url":null,"abstract":"In the Internet of Things era, flexible and wearable gas sensors are increasingly vital for real-time monitoring in healthcare, environmental safety, and industrial security. These sensors detect hazardous gases at room temperature and seamlessly integrate with clothing and portable devices. The 2D materials, including transition metal dichalcogenides, black phosphorus, MXenes, graphene and its derivatives, and metal-organic frameworks, stand out due to their exceptional electrical, mechanical, and physicochemical properties, such as large surface areas, high carrier mobility, and intrinsic flexibility. This review summarizes recent advancements in designing, fabricating, and applying 2D-material-based flexible gas sensors. It highlights how engineering approaches like defect creation, composite formation, and surface functionalization significantly enhance sensor sensitivity, selectivity, and response times. Comparative performance data across various material families are presented, alongside effective strategies for integrating 2D materials onto diverse flexible substrates such as polymers, textiles, and paper, emphasizing durability under mechanical stress. The review critically addresses current challenges, including large-scale manufacturing, long-term stability, and interference from ambient humidity. Furthermore, it explores innovative solutions like self-healing sensors, artificial intelligence-driven sensor arrays, in situ surface passivation, and multisensor platforms coupled with machine learning algorithms, offering valuable insights for advancing next-generation wearable gas-sensing technologies.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 8","pages":"2500025"},"PeriodicalIF":8.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12362815/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144971916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in the Synthesis, Optical Properties, and Applications of Fluorescent Silicon Carbide Quantum Dots. 荧光碳化硅量子点的合成、光学性质及应用研究进展。

IF 8.3

Small Science Pub Date : 2025-06-28 eCollection Date: 2025-08-01 DOI: 10.1002/smsc.202500013

Mahdi Hasanzadeh Azar, Jahanbakhsh Jahanzamin, Zimo Ji, Adrian Kitai, David Beke, Adam Gali

{"title":"Recent Advances in the Synthesis, Optical Properties, and Applications of Fluorescent Silicon Carbide Quantum Dots.","authors":"Mahdi Hasanzadeh Azar, Jahanbakhsh Jahanzamin, Zimo Ji, Adrian Kitai, David Beke, Adam Gali","doi":"10.1002/smsc.202500013","DOIUrl":"10.1002/smsc.202500013","url":null,"abstract":"Earth-abundant, fluorescent silicon carbide (SiC) quantum dots (QDs) have recently attracted remarkable attention on account of their long-term chemical and optical stability and impressive biocompatibility. However, there has been a long-standing debate among researchers concerning whether radiative recombination in SiC QDs is governed by quantum confinement effects or by surface-related states. Herein, the underlying mechanism responsible for the photoluminescence observed in SiC QDs is elucidated. Significant progress made through the development of advanced strategies for synthesizing ultrasmall SiC QDs and modifying their surfaces with functional groups, conjugated molecules, and protective shells is discussed. Subsequently, the potential for engineered SiC QDs to be applied to a range of sectors, including energy (photocatalytic-based CO2 reduction systems), electronics/optoelectronics (electroluminescent white light-emitting diodes, nonlinear optics, and quantum sensing), and biomedicine (cell imaging and biosensors), is reviewed. Finally, this review is summarized with some forward-looking challenges and prospects.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 8","pages":"2500013"},"PeriodicalIF":8.3,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12362766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144971849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cerium Oxide Nanoparticles Achieve Long-Lasting Senescence Inhibition in an Aging Mouse Model of Sarcopenia via Reactive Oxygen Species Scavenging and CILP2 Downregulation. 氧化铈纳米颗粒通过活性氧清除和CILP2下调在衰老小鼠肌少症模型中实现持久的衰老抑制。

IF 8.3

Small Science Pub Date : 2025-06-26 eCollection Date: 2025-08-01 DOI: 10.1002/smsc.202500208

Wei-Chih Lien, Yu-Ling Yu, Ya-Jyun Liang, Chia-Yih Wang, Yang-Chen Lin, Huei-Cih Chang, Feng-Huei Lin, Hui-Min David Wang

{"title":"Cerium Oxide Nanoparticles Achieve Long-Lasting Senescence Inhibition in an Aging Mouse Model of Sarcopenia via Reactive Oxygen Species Scavenging and CILP2 Downregulation.","authors":"Wei-Chih Lien, Yu-Ling Yu, Ya-Jyun Liang, Chia-Yih Wang, Yang-Chen Lin, Huei-Cih Chang, Feng-Huei Lin, Hui-Min David Wang","doi":"10.1002/smsc.202500208","DOIUrl":"10.1002/smsc.202500208","url":null,"abstract":"Most drugs used to treat sarcopenia are ineffective. Herein, the long-acting anti-sarcopenic properties of cerium oxide nanoparticles (CeNPs) and their underlying mechanisms of action are investigated in aging mice (treated with 4-hydroperoxy cyclophosphamide (4-HC)). CeNPs (size, 27.5 nm) with a fluorite crystallization structure are synthesized and subjected to X-ray diffraction and gas adsorption analyzes. Synthesized CeNPs exhibit Ce3+ and Ce4+ on their surfaces, a specific surface area within the standard range, and self-regenerative antioxidative functions. Synthesized CeNPs reduce reactive oxygen species (ROS) levels and exhibit good biocompatibility in muscle satellite (C2C12) cells. According to Rotarod, tensile, and histological analyzes, CeNP treatment once per week in 4-HC-treated mice markedly increases muscle strength and the cross-sectional muscle tissue area relative to that in control mice. Next-generation sequencing identifies CILP2 as a key differentially upregulated gene common to aging muscle tissues and satellite cells in the presence of ROS. Quantitative polymerase chain reaction and western blotting confirm CILP2, Serpine1, phospho-p21, Atrogin-1, and Cxcl10 downregulation in CeNP-treated mice (compared with 4-HC-treated mice); in vitro CILP2 knockdown results in Serpine1 and phospho-p21 downregulation. These findings confirm the long-acting effects of CeNPs against sarcopenia in older individuals.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 8","pages":"2500208"},"PeriodicalIF":8.3,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12362745/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144972017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface Chemistry-Driven Oxidation Mechanisms in Ti₃C₂T _x MXenes. ti3c2txmxenes表面化学驱动氧化机理研究

IF 8.3

Small Science Pub Date : 2025-06-24 eCollection Date: 2025-08-01 DOI: 10.1002/smsc.202500209

Bradlee J McIntosh, Bence G Márkus, Anna Nyáry, Ferenc Simon, László Forró, Dávid Beke

{"title":"Surface Chemistry-Driven Oxidation Mechanisms in Ti3C2T x MXenes.","authors":"Bradlee J McIntosh, Bence G Márkus, Anna Nyáry, Ferenc Simon, László Forró, Dávid Beke","doi":"10.1002/smsc.202500209","DOIUrl":"10.1002/smsc.202500209","url":null,"abstract":"Ti3C2T x is a leading compound within the MXenes family and can find host in widespread applications. It is synthesized by selectively etching layers from the Ti3AlC2 precursor, and this process typically introduces surface terminations, T x , such as -OH, =O, or -F. However, the aggressive chemical conditions required for its preparation, as well as exposure to air, humidity, and heat, can lead to impurity phases that potentially compromise its desirable properties. Herein, a two-step oxidation process is revealed during heat treatment, where initial oxidation occurs between layers without altering the integrity of the Ti3C2-layered structure, followed by the formation of anatase TiO2 at elevated temperatures. The process is carefully monitored using in situ Raman spectroscopy and in situ microwave conductivity measurements, applied to Ti3C2T x prepared using various etching techniques involving concentrated hydrofluoric acid, LiF + HCl, and HF + HCl mixtures. The oxidation process is heavily influenced by the synthesis route and surface chemistry of Ti3C2T x , with fluoride and oxyfluoride groups playing a pivotal role in stabilizing the anatase phase. The absence of these groups, in contrast, can lead to the formation of rutile TiO2.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 8","pages":"2500209"},"PeriodicalIF":8.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12362798/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144972045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential-Dependent Kinetics and Reaction Pathways of Low-Potential Furfural Electrooxidation with Anodic H₂ Production. 低电位糠醛电氧化阳极制氢的电位依赖性动力学和反应途径。

IF 8.3

Small Science Pub Date : 2025-06-24 eCollection Date: 2025-08-01 DOI: 10.1002/smsc.202500132

Zhaohui Wu, Guihao Liu, Ziheng Song, Yihang Hu, Tianqi Nie, Yu-Fei Song

{"title":"Potential-Dependent Kinetics and Reaction Pathways of Low-Potential Furfural Electrooxidation with Anodic H2 Production.","authors":"Zhaohui Wu, Guihao Liu, Ziheng Song, Yihang Hu, Tianqi Nie, Yu-Fei Song","doi":"10.1002/smsc.202500132","DOIUrl":"10.1002/smsc.202500132","url":null,"abstract":"The low-potential furfural electrooxidation reaction (FFOR) on copper-based catalysts provides a novel pathway to upgrade biomass and produce H2 simultaneously on anode. Herein, a series of oxide-derived copper catalysts (OD-Cu-x, x represents electroreduction time) with distinct Cu0/Cu+ ratios and residual content of lattice oxygen are successfully constructed by tuning in-situ electroreduction time. When applied for FFOR, the OD-Cu-600 with a Cu0/Cu+ ratio of 83.3% shows the Faradaic efficiency of 96.1% for furoic acid (FA) and 97.4% for H2, which can be achieved at a lowest potential of 0.081 V versus RHE at 10 mA cm-2 in continuous 10 cycles, outperforming the state-of-art Cu-based catalysts reported so far. Detailed characterization and density functional theory (DFT) calculations prove that the moderate coverage (25% based on DFT models) of Cu(OH)ads surface species generated by Cu+ during the electrooxidation process endows the optimal furfural molecule adsorption and activation. Moreover, this potential-dependent coverage of surface OH can promote the kinetics of *H transfer to the Cu surface, allowing the H2 evolution from the anode. The Cu0/Cu+ ratio (83.8%) and suitable applied potential windows (0 to 0.4 V vs RHE) are both responsible for the co-production of FA and H2 with high intrinsic activity and efficient H atom utilization.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 8","pages":"2500132"},"PeriodicalIF":8.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12362779/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144971816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0