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Plasmonic tandem heteroj.nctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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j.urnal of Energy chemistry 2025年第1期100卷 710-720页

作者： Wenxuan chen Xiu-Qing Qiao Guo Hui Boj.ng Sun Dongfang Hou Meidi Wang Xueqian Wu Tao Wu Dong-sheng Li college of Materials and chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory college of chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heteroj.nction with the hc-cdS/Mo2c@c heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the cdS photocatalyst via the synergistic strategy of phase j.nction,Schottky j.nction,and photothermal *** difference in atomic configuration between cubic-cdS （c-cdS） and hexagonal-cdS （h-cdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky j.nction further extracts the electrons in the hc-cdS phase j.nction to realize gradient charge ***,the photothermal effect of Mo2c@c helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-cMc photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of cdS by constructing plasmonic tandem heterogeneous j.nctions.

关键词： Heteroj.nctions LSPR Photocatalyst Phase j.nction Schottky j.nction Photothermal effect

MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self-Powered Motion Sensing

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NANO-MIcRO LETTERS 2025年第1期17卷 1-15页

作者： Wang, Yu-Ze Wang, Yu-chang Liu, Ting-Ting Zhao, Quan-Liang Li, chen-Sha cao, Mao-sheng Beij.ng Inst Technol Sch Mat Sci & Engn Beijing 100081 Peoples R China Peking Univ Sch Mat Sci & Engn Beijing 100871 Peoples R China North china Univ Technol Sch Mech & Mat Engn Beijing 100144 Peoples R China Heilongj.ang Univ Minist Educ Peoples Republ China Key Lab Funct Inorgan Mat Chem Harbin 150080 Peoples R China

Polymeric microwave actuators combining tissue-like softness with programmable microwave-responsive deformation hold great promise for mobile intelligent devices and bionic soft robots. However, their application is challenged by restricted electromagnetic sensitivity and intricate sensing coupling. In this study, a sensitized polymeric microwave actuator is fabricated by hybridizing a liquid crystal polymer with Ti3c2Tx (MXene). compared to the initial counterpart, the hybrid polymer exhibits unique space-charge polarization and interfacial polarization, resulting in significant improvements of 230% in the dielectric loss factor and 830% in the apparent efficiency of electromagnetic energy harvest. The sensitized microwave actuation demonstrates as the shortened response time of nearly 10 s, which is merely 13% of that for the initial shape memory polymer. Moreover, the ultra-low content of MXene (up to 0.15 wt%) benefits for maintaining the actuation potential of the hybrid polymer. An innovative self-powered sensing prototype that combines driving and piezoelectric polymers is developed, which generates real-time electric potential feedback (open-circuit potential of similar to 3 mV) during actuation. The polarization-dominant energy conversion mechanism observed in the MXene-polymer hybrid structure furnishes a new approach for developing efficient electromagnetic dissipative structures and shows potential for advancing polymeric electromagnetic intelligent devices.

关键词： Microwave absorption Electromagnetic response Energy harvest Self-sensing Soft actuator

Status and prospects for symmetric organic redox flow batteries

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j.urnal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

Exploration of Gas-Dependent Self-Adaptive Reconstruction Behavior of cu₂O for Electrochemical cO₂ conversion to Multi-carbon Products

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NANO-MIcRO LETTERS 2025年第1期17卷 1-17页

作者： Zhang, chaoran Gu, Yichuan j.ang, Qu sheng, Ziyang Feng, Ruohan Wang, Sihong Zhang, Haoyue Xu, Qianqing Yuan, Zij.an Song, Fang Shanghai j.ao Tong Univ Sch Mat Sci & Engn State Key Lab Met Matrix Composites Shanghai 200240 Peoples R China

Structural reconstruction of electrocatalysts plays a pivotal role in catalytic performances for cO2 reduction reaction (cO2RR), whereas the behavior is by far superficially understood. Here, we report that cO2 accessibility results in a universal self-adaptive structural reconstruction from cu2O to cu@cuxO composites, ending with feeding gas-dependent microstructures and catalytic performances. The cO2-rich atmosphere favors reconstruction for cO2RR, whereas the cO2-deficient one prefers that for hydrogen evolution reaction. With the assistance of spectroscopic analysis and theoretical calculations, we uncover a cO2-induced passivation behavior by identifying a reduction-resistant but catalytic active cu(I)-rich amorphous layer stabilized by *cO intermediates. Additionally, we find extra cO production is indispensable for the robust production of c2H4. An inverse correlation between durability and FEcO/FEc2H4 is disclosed, suggesting that the self-stabilization process involving the absorption of *cO intermediates on cu(I) sites is essential for durable electrolysis. Guided by this insight, we design hollow cu2O nanospheres for durable and selective cO2RR electrolysis in producing c2H4. Our work recognizes the previously overlooked passivation reconstruction and self-stabilizing behavior and highlights the critical role of the local atmosphere in modulating reconstruction and catalytic processes.

关键词： cO2 reduction reaction Electrocatalysts cu2O Reconstruction Self-adaptive electrocatalysis

A functional tacrolimus-releasing nerve wrap for enhancing nerve regeneration following surgical nerve repair

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Neural Regeneration Research 2025年第1期20卷 291-304页

作者： Simeon c.Daeschler Katelyn j.W.So Konstantin Feinberg Marina Manoraj.j.nny cheung j.nnifer Zhang Kaveh Mirmoeini j.aul Santerre Tessa Gordon Gregory HBorschel SickKids Research Institute Neuroscience and Mental Health ProgramTorontoONCanada Institute of Biomaterials and Biomedical Engineering University of TorontoTorontoONCanada Indiana University School of Medicine IndianapolisINUSA Division of Plastic and Reconstructive Surgery the Hospital for Sick ChildrenTorontoONCanada Translational Biology and Engineering Program Ted Rogers Centre for Heart ResearchInstitute of Biomedical EngineeringFaculty of DentistryUniversity of TorontoTorontoONCanada

Axonal regeneration following surgical nerve repair is slow and often incomplete,resulting in poor functional recovery which sometimes contributes to lifelong ***,there are no FDA-approved therapies available to promote nerve *** accelerates axonal regeneration,but systemic side effects presently outweigh its potential benefits for peripheral nerve *** authors describe herein a biodegradable polyurethane-based drug delivery system for the sustained local release of tacrolimus at the nerve repair site,with suitable properties for scalable production and clinical application,aiming to promote nerve regeneration and functional recovery with minimal systemic drug *** is encapsulated into co-axially electrospun polycarbonate-urethane nanofibers to generate an implantable nerve wrap that releases therapeutic doses of bioactive tacrolimus over 31 *** and drug loading are adj.stable for applications in small and large caliber nerves,and the wrap degrades within 120 days into biocompatible *** released from the nerve wrap promotes axon elongation in vitro and accelerates nerve regeneration and functional recovery in preclinical nerve repair models while off-target systemic drug exposure is reduced by 80%compared with systemic *** its surgical suitability and preclinical efficacy and safety,this system may provide a readily translatable approach to support axonal regeneration and recovery in patients undergoing nerve surgery.

关键词： biodegradable local drug delivery nerve inj.ry nerve regeneration nerve wrap tacrolimus

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computerized control and Operation of Rutherford Backscattering/channeling for an in situ Ion Beam System and Its Application for Measurement of Si（001） and ZnO（001）

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chinese Physics Letters 2011年第1期28卷 66-69页

作者： HE j.n j. c. LEE LI Ming WANG Ze-Song LIU chuan-sheng FU De-j.n Accelerator Laboratory Wuhan University Wuhan 430072 Quantum-Functional Semiconductor Research center Dongguk University 3-26 Pildong Seoul 100-715 Korea

A computer-automated Rutherford backscattering/channeling （RBS/c） system is developed to provide in situ ion beam analysis of the accelerator-TEM system in Wuhan University. The basic system components are a Pc equipped with a multichannel analyzer data acquisition board, motion control hardware including the Panmure stepping motor controller and integrated circuit modules, and a Labview programmed operating system with associated electronics. Single crystalline Si（001） and ZnO（001） implanted with Mn ions were characterized with this computerized setup. The crystalline quality Xmin and channeling half angle of Si（O01） were measured to be 4.65% and 0.52%, respectively, which are comparable to theoretical values 4.2% and 0.32%. The ion implantation induced damage depth profile derived from channeling and random spectrum is in reasonable agreement with the result calculated by the SRIM Monte-carlo simulation code.

关键词： Surfaces interfaces and thin films condensed matter: structural mechanical & thermal

Importance of proper renormalization scale-setting for QcD testing at colliders

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Frontiers of physics 2016年第1期11卷 27-37页

作者： Xing-Gang Wu sheng-Quan Wang Stanley j. Brodsky Department of Physics Chongqing University Chongqing 401331 China School of Science Guizhou Minzu University Guiyang 550025 China SLA c National Accelerator Laboratory Stanford University Stanford CA 94039 USA

A primary problem affecting perturbative quantum chromodynamic （pQcD） analyses is the lack of a method for setting the QcD running-coupling renormalization scale such that maximally precise fixed-order predictions for physical observables are obtained. The Principle of Maximum conformality （PMc） eliminates the ambiguities associated with the conventional renormalization scale-setting procedure, yielding predictions that are independent of the choice of renormalization scheme. The QcD coupling scales and the effective number of quark flavors are set orderby-order in the pQcD series. The PMc has a solid theoretical foundation, satisfying the standard renormalization group invariance condition and all of the self-consistency conditions derived from the renormalization group. The PMc scales at each order are obtained by shifting the arguments of the strong force coupling constant as to eliminate all non-conformal {βi} terms in the pQcD series. The {βi} terms are determined from renormalization group equations without ambiguity. The correct behavior of the running coupling at each order and at each phase-space point can then be obtained. The PMc reduces in the Nc → 0 Abelian limit to the Gell-Mann-Low method. In this brief report, we summarize the results of our recent application of the PMc to a number of collider processes, emphasizing the generality and applicability of this approach. A discussion of hadronic Z decays shows that, by applying the PMc, one can achieve accurate predictions for the total and separate decay widths at each order without scale ambiguities. We also show that, if one employs the PMc to determine the top-quark pair forward-backward asymmetry at the next-to-next-to-leading order level, one obtains a comprehensive, self-consistent pQcD explanation for the Tevatron measurements of the asymmetry. This accounts for the ＂increasing-decreasing＂ behavior observed by the DO collaboration for increasing tt invariant mass. At lower energies, the angular d

关键词： QcD proper renormalization scale-setting PMc high-energy colliders

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Deciphering Water Oxidation catalysts: The Dominant Role of Surface chemistry over Reconstruction Degree in Activity Promotion

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NANO-MIcRO LETTERS 2025年第1期17卷 1-15页

作者： An, Li Li, j.anyi Sun, Yuanmiao Zhu, j.amin Seow, j.stin Zhu Yeow Zhang, Hong Zhang, Nan Xi, Pinxian Xu, Zhichuan j. Yan, chun-Hua Lanzhou Univ Frontiers Sci Ctr Rare Isotopes Key Lab Nonferrous Met Chem & Resources Utilizat G State Key Lab Appl Organ ChemColl Chem & Chem Eng Lanzhou 730000 Peoples R China Nanyang Technol Univ Sch Mat Sci & Engn Singapore 639798 Singapore chinese Acad Sci Fac Mat Sci & Energy Engn Shenzhen Inst Adv Technol Inst Technol Carbon Neutral Shenzhen 518055 Peoples R China Yunnan Univ Natl Ctr Int Res Photoelect & Energy Mat Electron Microscopy Ctr Sch Mat & EnergyKey Lab Electromagnet Mat & Devic Kunming 650091 Peoples R China Baotou Res Inst Rare Earths State Key Lab Baiyunobo Rare Earth Resource Res & Baotou 014030 Peoples R China Peking Univ Beijing Natl Lab Mol Sci State Key Lab Rare Earth Mat Chem & Applicat PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Chem Beijing 100871 Peoples R China

Demonstrate that the key factor to determine the activity of reconstructed surfaces is the surface chemistry, instead of reconstruction degree using the popular perovskite LaNi1-xFexO3 oxides as model *** content can influence both the surface reconstruction degree, the activation degree, and the activity of reconstructed *** oxygen evolution reaction activity of reconstructed catalysts is primarily governed by the chemistry of the reconstructed surface species. Water splitting hinges crucially on the availability of electrocatalysts for the oxygen evolution reaction. The surface reconstruction has been widely observed in perovskite catalysts, and the reconstruction degree has been often correlated with the activity enhancement. Here, a systematic study on the roles of Fe substitution in activation of perovskite LaNiO3 is reported. The substituting Fe content influences both current change tendency and surface reconstruction degree. LaNi0.9Fe0.1O3 is found exhibiting a volcano-peak intrinsic activity in both pristine and reconstructed among all substituted perovskites in the LaNi1-xFexO3 (x = 0.00, 0.10, 0.25, 0.50, 0.75, 1.00) series. The reconstructed LaNi0.9Fe0.1O3 shows a higher intrinsic activity than most reported NiFe-based catalysts. Besides, density functional theory calculations reveal that Fe substitution can lower the O 2p level, which thus stabilize lattice oxygen in LaNi0.9Fe0.1O3 and ensure its long-term stability. Furthermore, it is vital interesting that activity of the reconstructed catalysts relied more on the surface chemistry rather than the reconstruction degree. The effect of Fe on the degree of surface reconstruction of the perovskite is decoupled from that on its activity enhancement after surface reconstruction. This finding showcases the importance to customize the surface chemistry of reconstructed catalysts for water oxidation.

关键词： Oxygen evolution reaction Perovskite oxides Doping Activation and reconstruction

constraints on what controls millennial-scale basin-wide denudation across mountain belts, Asia

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Science china Earth Sciences 2025年第1期 74-93页

作者： Ye YANG Steven A.BINNIE sheng XU cong-Qiang LIU Tibor j.DUNAI Institute of Surface-Earth System Science School of Earth System Science Tianjin University Institute of Geology and Mineralogy University of Cologne

The terrestrial cosmogenic nuclide dataset consisting of 123310Be measurements of fluvial sediment samples across the Asian mountain belts is used to constrain the influence of climate,tectonics and topography on Earth-surface denudation processes.10Be-derived basin-wide denudation rates were recalculated using a Monte carlo simulation approach that relied on pixel-by-pixel production *** rates derived span four orders of magnitude,from 7.4±0.7 mm kyr-1（1σ;central Tibetan Plateau） to 9,646744+777mm kyr-1（1σ;Southern Tibetan Plateau）,with a median of 186 mm *** our results with the traditional basin-wide production rate scaling model using a centroid coordinate and mean elevation,suggests that 96.6%of production rates will be underestimated using the latter method,especially for basins with a large *** bias between both methods reaches as large as 40%,caused by basin hypsometry and the nonlinear scaling of production rate with elevation and *** of the correlations between uniformly recalculated denudation rates and tectonics,climate,topography and rock lithology will facilitate the extrapolation of denudation rates in unknown basins using available *** the perspective of local scales,precipitation coupled with neotectonics-driven landslides is likely the most influential factor in subtropical Taiwan Island,while topography primarily constrains surface denudation rates in the eastern Tibetan Plateau within a narrow range of *** highland regions with glacier coverage,such as the Pamir,central and southern Tibetan Plateau high denudation rates are affected by glaciation,whereas lower precipitation and high erosion base level may limit river incision and evolving relief in the central Tibetan *** contrast to local-scale findings highlighting a dominant factor constraining denudation rate,our large-scale quantitative analyses across the Asian mountain belts finds that （1） topographic metrics including

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