材料科学最新文献

{"title":"A reconstructed, surface S-coordinated gas-penetrable Cd hollow fiber for selective CO2 electroreduction to CO at high current density","authors":"Zhe Meng, Yongxing Sun, Yuyu Wang, Jinyu Ma, Fang Wang, Guoqiang Wu, Kang Wang, Zhengguo Zhang, Shixiong Min","doi":"10.1039/d4ta08908a","DOIUrl":"https://doi.org/10.1039/d4ta08908a","url":null,"abstract":"Efficient electrochemical CO2 reduction reaction (CO2RR) relies on not only the development of selective/active catalysts but also the smart design of advanced electrode configuration to address the critical issues of poor CO2 mass transport and sluggish cathodic reaction kinetics. In this work, a reconstructed, surface S-coordinated low-melting-point (LMP) Cd hollow fiber (s-Cd HF) for CO electrosynthesis from the CO2 reduction is developed by partially hydrothermal sulfidation of a porous CdO HF (CdS@CdO HF) followed by in-situ electroreduction during CO2RR. Attributing to the improved mass transfer, well-established triphsic interfaces, and abundant S-coordicanted Cd active sites, the most active s-Cd HF operated in gas-penetrable configuration exhibits high electrocatalytic efficiency for CO2-to-CO conversion with a Faradaic efficiency (FECO) of over 90% across a wide potential range of 220 mV, and it displays a high CO partial current density (jCO) of up to -125.1 mA cm-2 at -1.01 V vs. reversible hydrogen electrode (RHE). Notably, both FECO and jCO remain constant over a period of a 12 h stability test. This work demonstrates the great potential of empolying a LMP metal hollow fiber to reinforce reaction kinetics for the efficient CO2 electroreduction.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"29 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055734","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":"Dynamic flow control through active matter programming language","authors":"Fan Yang, Shichen Liu, Heun Jin Lee, Rob Phillips, Matt Thomson","doi":"10.1038/s41563-024-02090-w","DOIUrl":"https://doi.org/10.1038/s41563-024-02090-w","url":null,"abstract":"<p>Cells use ‘active’ energy-consuming motor and filament protein networks to control micrometre-scale transport and fluid flows. Biological active materials could be used in dynamically programmable devices that achieve spatial and temporal resolution that exceeds current microfluidic technologies. However, reconstituted motor–microtubule systems generate chaotic flows and cannot be directly harnessed for engineering applications. Here we develop a light-controlled programming strategy for biological active matter to construct micrometre-scale fluid flow fields for transport, separation and mixing. We circumvent nonlinear dynamic effects within the active fluids by limiting hydrodynamic interactions between contracting motor–filament networks patterned with light. Using a predictive model, we design and apply flow fields to accomplish canonical microfluidic tasks such as transporting and separating cell clusters, probing the extensional rheology of polymers and giant lipid vesicles and generating mixing flows at low Reynolds numbers. Our findings provide a framework for programming dynamic flows and demonstrate the potential of active matter systems as an engineering technology.</p>","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"59 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055023","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":"CeO2-Accelerated Surface Reconstruction of CoSe2 Nanoneedle Forms Active CeO2@CoOOH Interface to Boost Oxygen Evolution Reaction for Water Splitting (Adv. Energy Mater. 4/2025)","authors":"Quanxin Guo, Yu Li, Zhengrong Xu, Rui Liu","doi":"10.1002/aenm.202570021","DOIUrl":"https://doi.org/10.1002/aenm.202570021","url":null,"abstract":"<b>Water Splitting</b>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"13 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055441","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":"In-Depth Structural Analysis of a Stapled Pentapeptide and Its Assembly Into Straight α-Helices (Small 4/2025)","authors":"Jianbo Liu, Jinming Sun, Fadeng Yang, Zi-You Tian, Chuan Wan, Feng Yin, Yuxin Ye, Zigang Li","doi":"10.1002/smll.202570028","DOIUrl":"https://doi.org/10.1002/smll.202570028","url":null,"abstract":"<b>Peptide Self-Assembly</b>","PeriodicalId":228,"journal":{"name":"Small","volume":"121 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055442","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":"Modulation of Electrochemical Reactions through External Stimuli: Applications in Oxygen Evolution Reaction and Beyond","authors":"Baoshan Liu, Haoyin Zhong, Jing Liu, Junchen Yu, Qi Zhang, Jiong Rui Loh, Liping Zhao, Peng Zhang, Lian Gao, Junmin Xue","doi":"10.1021/acsnano.5c00099","DOIUrl":"https://doi.org/10.1021/acsnano.5c00099","url":null,"abstract":"Electrochemical water splitting is a promising method for generating green hydrogen gas, offering a sustainable approach to addressing global energy challenges. However, the sluggish kinetics of the anodic oxygen evolution reaction (OER) poses a great obstacle to its practical application. Recently, increasing attention has been focused on introducing various external stimuli to modify the OER process. Despite significant enhancement in catalytic performance, an in-depth understanding of the origin of superior OER activity contributed by the external stimuli remains elusive, which significantly hinders the further development of highly efficient and durable water electrolyzed devices. Herein, this review systematically summarizes the recent advancements in the understanding of various external stimuli, including photon irradiation, applied magnetic field, and thermal heating, etc., to boost OER activities. In particular, the underlying mechanisms of external stimuli to promote species transfer, modify the electronic structure of electrocatalysts, and accelerate structural reconstruction are highlighted. Additionally, applications of external stimuli in other electrocatalytic reactions are also presented. Finally, several remaining challenges and future opportunities are discussed, providing insights that could further the study of external stimuli in electrocatalytic reactions and support the rational design of highly efficient energy storage and conversion devices.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"1 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055489","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":"Ultraflexible Vertical Corbino Organic Electrochemical Transistors for Epidermal Signal Monitoring (Adv. Mater. 4/2025)","authors":"Inho Lee, Ji Hwan Kim, Youngseok Kim, Dongjoon Shin, Hyeongbeom Lee, Jonghyun Won, Keehoon Kang, Jun-Gyu Choi, Myung-Han Yoon, Sungjun Park","doi":"10.1002/adma.202570033","DOIUrl":"https://doi.org/10.1002/adma.202570033","url":null,"abstract":"<b>Ultraflexible Vertical Organic Electrochemical Transistors</b>","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"67 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055526","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":"Bioinspired Antiswelling Hydrogel Sensors with High Strength and Rapid Self-Recovery for Underwater Information Transmission","authors":"Shenxin Pan, Chao Chang, Gang Wu, Zidong He, Chongyin Zhang, Shuqiang Xiong, Gangsheng Tong, Xinyuan Zhu","doi":"10.1021/acsami.4c17863","DOIUrl":"https://doi.org/10.1021/acsami.4c17863","url":null,"abstract":"Hydrogel-based sensors typically demonstrate conspicuous swelling behavior in aqueous environments, which can severely compromise the mechanical integrity and distort sensing signals, thereby considerably constraining their widespread applicability. Drawing inspiration from the multilevel heterogeneous structures in biological tissues, an antiswelling hydrogel sensor endowed with high strength, rapid self-recovery, and low swelling ratio was fabricated through a water-induced phase separation and coordination cross-linking strategy. A dense heterogeneous architecture was developed by the integration of “rigid” quadridentate carboxyl–Zr⁴⁺ coordination bonds and “soft” hydrophobic unit-rich regions featuring π–π stacking and cation–π interactions into the hydrogels. This unique structural design facilitated the progressive breaking of cross-links within the hydrogel network from “soft” to “rigid” under external loads, effectively dissipating energy and thereby imparting the hydrogels with exceptional mechanical characteristics, evidenced by a strength of 1.42 MPa, and complete self-recovery within 3 min. Simultaneously, the “rigid” and “soft” dynamic interactions synergistically conferred augmented elastic retractive forces on the hydrogel network by enhancing cross-linking density, thereby providing the hydrogels with prominent antiswelling capabilities in water (with a swelling ratio of only −2.49%), in solutions with diverse pH (1–9), and in seawater. Moreover, the hydrogels manifested favorable strain-sensitivity (gauge factor up to 2.45) and frequency response by virtue of the collaborative contribution of dynamic ions (Cl^– and Zr⁴⁺). Consequently, the hydrogels were utilized to assemble underwater sensors with the capacity to transmit information using Morse code. This bioinspired design methodology achieved the desired integration of the mechanical, swelling-resistant, and sensing performance within the hydrogels, thereby contributing innovative insights toward the advancement of underwater sensor technology.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"15 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055674","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":"Graphitic Carbon Nitride-Supported Layered Double Hydroxides (GCN@FeMg-LDH) for Efficient Water Splitting and Energy Harvesting","authors":"Rakesh Kulkarni, Swapnil R. Patil, Lakshmi Prasanna Lingamdinne, Nilesh Chodankar, Yoon-Young Chang, Jinho Bae, Janardhan Reddy Koduru","doi":"10.1021/acsami.4c17996","DOIUrl":"https://doi.org/10.1021/acsami.4c17996","url":null,"abstract":"The advancement of highly efficient and cost-effective electrocatalysts for electrochemical water splitting, along with the development of triboelectric nanogenerators (TENGs), is crucial for sustainable energy generation and harvesting. In this study, a novel hybrid composite by integrating graphitic carbon nitride (GCN) with an earth-abundant FeMg-layered double hydroxide (LDH) (GCN@FeMg-LDH) was synthesized by the hydrothermal approach. Under controlled conditions, with optimized concentrations of metal ions and GCN, the fabricated electrode, GCN@FeMg-LDH demonstrated remarkably low overpotentials of 0.018 and 0.284 V and 0.101 and 0.365 V at 10 and 600 mA/cm² toward the hydrogen evolution (HER) and oxygen evolution (OER) reactions, respectively, in 1.0 M KOH. Furthermore, we leveraged the potential of the GCN@FeMg-LDH composite to develop a high-performance TENG suitable for practical electronic applications. The resulting GCN@FeMg-LDH-based TENG device, sized at 3 × 4 cm², demonstrated a substantial current output of 52 μA and a voltage output of 771 V. Notably, this TENG device exhibited an instantaneous power output of 5780 μW and exceptional stability, enduring over 15 000 cycles. Thus, this study concludes that the GCN@FeMg-LDH composite emerges as a superior candidate for applications in water splitting and TENGs, exhibiting significant promise for advancing clean energy technologies, in addition to lowering greenhouse gas emissions.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"1 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055676","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":"High-entropy structure design of transition metal dichalcogenides for improved electromagnetic wave absorption performance","authors":"Yefei Xu, Mian Li, Nengwen Ding, Qing Huang","doi":"10.1039/d4ta08853k","DOIUrl":"https://doi.org/10.1039/d4ta08853k","url":null,"abstract":"Transition metal dichalcogenides (TMDs) have attracted great interests due to their unique properties and wide range of applications. The versatile composition and tunable phase structure provide larger potential to explore TMDs with unprecedented properties. In the present work, a simple model based on the Hume-Rothery rules is proposed to predict the formation possibility of TMDs containing multiple transition metal elements. Several predicted high-entropy TMDs, e.g. (Ti0.25V0.25Cr0.25Nb0.25)S2 and (Ti0.2V0.2Cr0.2Nb0.2Ta0.2)S2 are synthesized through a solid-phase reaction route. The high-entropy solid solution of the M-site element results in an atomic-scale ordered/disordered stacking structure of the TMDs crystal, which enhances the dipole polarization. The multiple M-site elements induce 1T/2H phase transition within the TMDs sheets, which enhances the interfacial polarization. These two factors significantly enhance the dielectric loss of high-entropy TMDs, particularly endowing (Ti0.25V0.25Cr0.25Nb0.25)S2 with exceptional electromagnetic wave absorption capabilities. The maximum reflection loss of (Ti0.25V0.25Cr0.25Nb0.25)S2 reaches -60.31 dB and the effective absorption bandwidth is 2.31 GHz at 8.2-12.4 GHz band. This study demonstrates the great potential for tuning the properties and broaden the applications of TMDs through high-entropy structure design.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"78 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055733","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 Compositional Optimization of Fe–Co–Ni Ternary Amorphous Electrocatalysts for Efficient Oxygen Evolution in Anion Exchange Membrane Water Electrolysis (Small 4/2025)","authors":"Changsoo Lee, Young Hwa Yun, Se-Ho Kim, Gisu Doo, Sechan Lee, Hyunjeong Park, Youngtae Park, Jooyoung Shin, Hyun-Seok Cho, Sang-Kyung Kim, EunAe Cho, Chanwon Jung, MinJoong Kim","doi":"10.1002/smll.202570031","DOIUrl":"https://doi.org/10.1002/smll.202570031","url":null,"abstract":"<b>Anion Exchange Membrane Water Electrolysis</b>","PeriodicalId":228,"journal":{"name":"Small","volume":"1 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055484","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}