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Surface lattice carbon cycles the reverse water–gas shift reaction

Science China Chemistry 2025年第6期68卷 2209-2211页

作者： Jun Wang Jianyong Feng Zhaosheng Li Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State Microstructures School of PhysicsNanjing University Jiangsu Key Laboratory for Nano Technology College of Engineering and Applied Sciences Nanjing University

The reverse water–gas shift（RWGS） reaction combined with Fischer–Tropsch synthesis establishes a promising tandem catalytic system for transforming CO2into valuable chemicals and fuels [1,2]. However, the techno-economic assessment suggests that the RWGS reaction becomes viable and economically competitive only when catalysts with 100%CO selectivity（thus eliminating the downstream separation step）, high activity, sufficiently long operational durability,and ideally produced from earth-abundant materials and energy-efficient routes, are available [3].

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Efficient and simple synthesis of B_(2)O_(3)-Al_(2)O_(3)nanocomposites assisted by deep eutectic solvent for production of 5-hydroxymethylfurfural from glucose

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Nano Research 2025年第1期18卷 236-248页

作者： Yuchen Wang Kai Rong Shanlei Chang Youxing Fang Shaojun Dong State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China College of Chemistry Jilin UniversityChangchun 130012China

The catalytic conversion of glucose to high valueadded platform chemical 5-hydroxymethylfurfural(HMF)is a promising biorefinery process,and alumina-boria catalysts are considered to be green and mild solid acid catalysts for this catalytic ***,compared to the common synthesis methods with complicated steps,we reported a simple and efficient strategy to prepare B_(2)O_(3)-Al_(2)O_(3)nanocomposites by calcining cost-effective glucose-urea deep eutectic solvent(DES)solution containing the *** prepared B_(2)O_(3)-Al_(2)O_(3)nanocomposites exhibited an open three-dimensional skeleton and two-dimensional porous lamellar substructure,endowing them with a high specific surface area(228.27 m2/g).The introduction of boron changed the ratios of different aluminum species(AlⅣ,AlⅤ,and AlⅥ)and borate species(BO3 and BO4),thus further affecting the acidity and the types of acid sites of the *** prepared B_(2)O_(3)-Al_(2)O_(3)bifunctional acid catalysts possessing abundant Lewis acid sites and adjustable Brønsted acid sites showed complete glucose conversion and 55.38%of HMF yield under the optimum *** study proposed a concise method to synthesize alumina-boria solid acid catalysts assisted by glucose-urea *** hope to extend the application and prospect of this efficient and simple synthesis strategy.

关键词： 5-hydroxymethylfurfural(HMF) deep eutectic solvent glucose alumina-boria acid catalyst

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Carrier Relaxation Times in InAs/AlAs Superlattices:Modulating by Layers,Temperature,and Carrier Concentrations

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Chinese Physics Letters 2025年第2期42卷 271-275页

作者： Enrui Zhang Jinshan Yao Zhiming Geng Yueying Hou Jiayu Dai Hong Lu College of Science National University of Defense TechnologyChangsha 410073China Hunan Key Laboratory of Extreme Matter and Applications National University of Defense TechnologyChangsha 410073China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093China Department of Materials Science and Engineering College of Engineering and Applied SciencesNanjing UniversityNanjing 210093China

InAs/AlAs superlattice structures have significant potential for application in low-noise avalanche *** their performance in practical applications linked to the fundamental physical properties of carrier relaxation time,this study investigated the carrier relaxation times of InAs/AlAs superlattices across various monolayers,temperatures,and carrier *** investigation indicated that relaxation times span several tens of picoseconds,confirming that high-quality interfaces do not significantly reduce relaxation times in the way defect states ***,our study demonstrates that adjustments to the superlattice period can effectively modulate both the bandgap and carrier relaxation times,potentially impacting the performance of avalanche photodiodes by altering the electron-phonon interaction pathways and bandgap *** established that lower temperatures contribute to an increase in the bandgap and the suppression of high-frequency optical phonon vibrations,thereby lengthening the relaxation ***,our observations indicate that in InAs/AlAs superlattices,the relaxation time increases as the excitation power increases,owing to the phonon bottleneck *** insights into InAs/AlAs superlattice carrier dynamics highlight their applicability in enhancing avalanche photodetectors,and may contribute to the optimized design of superlattices for specific applications.

关键词： relaxation Times phonon

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Passive on-chip isolators based on the thin-film lithium niobate platform

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Chinese Physics B 2025年第3期34卷 408-413页

作者： Jiacheng Liu Gongyu Xia Qilin Hong Pingyu Zhu Kai-Kai Zhang Keyu Xia Ping Xu Shiqiao Qin Zhihong Zhu College of Advanced Interdisciplinary Studies&Hunan Provincial Key Laboratory of Novel Nano Optoelectronic Information Materials and Devices National University of Defense TechnologyChangsha 410073China Institute for Quantum Information and State Key Laboratory of High-Performance Computing College of Computer Science and TechnologyNational University of Defense TechnologyChangsha 410073China College of Engineering and Applied Sciences National Laboratory of Solid State Microstructuresand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210023China

Optical isolators,the photonic analogs of electronic diodes,are essential for ensuring the unidirectional flow of light in optical systems,thereby mitigating the destabilizing effects of back ***-film lithium niobate(TFLN),hailed as“the silicon of photonics,”has emerged as a pivotal material in the realm of chip-scale nonlinear optics,propelling the demand for compact optical *** report a breakthrough in the development of a fully passive,integrated optical isolator on the TFLN platform,leveraging the Kerr effect to achieve an impressive 10.3 dB of isolation with a minimal insertion loss of 1.87 *** theoretical simulations have demonstrated that our design,when applied to a microring resonator with a Q factor of 5×10^(6),can achieve 20 dB of isolation with an input power of merely 8 *** advancement underscores the immense potential of lithium niobate-based Kerr-effect isolators in propelling the integration and application of high-performance on-chip lasers,heralding a new era in integrated photonics.

关键词： thin-film lithium niobate Kerr effect optical isolator

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Sb3+ doped Cs3YCl6 metal halides with highly efficient broad-band green emission for light-emitting diode and X-ray imaging

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Science China Chemistry 2025年第6期68卷 2459-2466页

作者： Huwei Li Long Tian Qingxing Yang Nan Wang Xinyu Fu Li Zhou Jing Feng Hongjie Zhang State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences School of Applied Chemistry and Engineering University of Science and Technology of China Department of Chemistry Tsinghua University

Lead-free metal halides with low toxicity and great stability have garnered significant interest in the photoelectric ***, undesirable optical properties caused by parity-forbidden transition restrictions or indirect bandgap characteristics limit the applications of lead-free metal halides. Here, benefiting from the introduction of Sb3+ions, intense broad-band green emission resulting from the recombination of self-trapped excitons could be observed in a series of Cs3YCl6:Sb microcrystals（MCs）. Especially, Cs3YCl6:1%Sb MCs display an outstanding photoluminescence quantum yield of 93.5%. Furthermore, the intense green emission of Cs3YCl6:1%Sb MCs makes them potential as the green phosphor for the light-emitting diode（LED）application. Besides, under X-ray irradiation, Cs3YCl6:1%Sb MCs exhibit the great light yield of ～16000 photons/Me V and the fabricated thin film based on Cs3YCl6:1%Sb MCs also exhibits promising X-ray imaging ability with the spatial resolution of 9 lp/mm. This work not only offers a promising strategy to improve the optical properties of lead-free metal halides, but also highlights their excellent potential for LED and X-ray imaging applications.

关键词： lead-free metal halides scintillator light-emitting diode X-ray imaging

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Ultra-wideband matrix DFB laser array based on enhanced self-heating effect

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Optics Express 2025年第3期33卷 6304-6318页

作者： Fan, Yaqiang Sun, Zhenxing Zhang, Yue Lv, Yuan Xia, Haolin Zhang, Jingxuan Xu, Zhenzhen Wang, Wenxuan Xiao, Rulei Chen, Xiangfei National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Institute of Optical Communication Engineering Nanjing University Key Laboratory of Intelligent Optical Sensing and Manipulation The Ministry of Education Nanjing210093 China Ocean College Jiangsu University of Science and Technology Zhenjiang212003 China

In this paper, an ultra-wideband distributed feedback (DFB) laser array with matrix grating based on the enhanced self-heating effect is proposed and experimentally demonstrated. 12 lasers are monolithically integrated with a 4 × 3 matrix style with a wavelength spacing of 5 nm. The reconstruction-equivalent-chirp technique is used to simplify the grating fabrication and enhance the precise control of the wavelength spacing. A cascaded Y-branch sharing identical active layers with the lasers is used to realize one waveguide output, which only requires a small current to compensate for the material absorption. This can reduce fabrication complexity compared to using the butt-coupling technique. A semiconductor optical amplifier (SOA) is integrated in front of the laser array to amplify and adjust the optical power. By optimizing the doping concentration of the p-waveguide region, the self-heating effect of the DFB laser has been enhanced, thereby increasing the wavelength current tuning range of a laser unit. As a result, the wavelength of the laser array is precisely controlled, with the wavelength deviation of all 12 lasers maintained within ±0.2 nm. The wavelength current tuning range of a DFB laser unit reaches 5.8 nm. Consequently, without adjusting the thermoelectric cooler (TEC), the laser array can achieve a continuous wavelength current tuning range of up to 60 nm. After SOA amplification, the output power of the laser array is above 55 mW, and the relative intensity noise (RIN) is lower than -130 dB/Hz. Additionally, its side-mode suppression ratio (SMSR) is greater than 45 dB, indicating excellent single-longitudinal-mode properties. The proposed tunable laser is considered highly advantageous for dense wavelength-division multiplexing (DWDM) systems and optical sensing systems. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Semiconductor optical amplifiers

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Developing High-Energy, Stable All-Solid-state Lithium Batteries Using Aluminum-Based Anodes and High-Nickel Cathodes

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Nano-Micro Letters 2025年第1期17卷 1-15页

作者： Wu, Xin Wang, Meiyu Pan, Hui Sun, Xinyi Tang, Shaochun Zhou, Haoshen He, Ping Center of Energy Storage Materials & Technology Department of Energy Science and Engineering College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid-State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China Department of Materials Science and Engineering College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid-State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China

Aluminum (Al) exhibits excellent electrical conductivity, mechanical ductility, and good chemical compatibility with high-ionic-conductivity electrolytes. This makes it more suitable as an anode material for all-solid-state lithium batteries (ASSLBs) compared to the overly reactive metallic lithium anode and the mechanically weak silicon anode. This study finds that the pre-lithiated Al anode demonstrates outstanding interfacial stability with the Li6PS5Cl (LPSCl) electrolyte, maintaining stable cycling for over 1200 h under conditions of deep charge–discharge. This paper combines the pre-lithiated Al anode with a high-nickel cathode, LiNi0.8Co0.1Mn0.1O2, paired with the highly ionic conductive LPSCl electrolyte, to design an ASSLB with high energy density and stability. Using anode pre-lithiation techniques, along with dual-reinforcement technology between the electrolyte and the cathode active material, the ASSLB achieves stable cycling for 1000 cycles at a 0.2C rate, with a capacity retention rate of up to 82.2%. At a critical negative-to-positive ratio of 1.1, the battery’s specific energy reaches up to 375 Wh kg−1, and it maintains over 85.9% of its capacity after 100 charge–discharge cycles. This work provides a new approach and an excellent solution for developing low-cost, high-stability all-solid-state batteries. (Figure presented.) © The Author(s) 2025.

关键词： Solid-state Batteries

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Integrating environmental sustainability in construction Time-Cost trade-off for decision-making using hybrid NSGA-III and MOPSO approach

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Asian Journal of Civil engineering 2025年第4期26卷 1527-1542页

作者： Nagayo, Analene Montesines Singh, Rekha Dhawan, Amit Manjunath, T.C. Qasem, Altayeb Sethi, Krushna Chandra Sharma, Kamal Department of Engineering and Technology University of Technology and Applied Sciences-Al Musanna Al Muladdah Oman Department of Civil Engineering Raj Kumar Goel Institute of Technology Ghaziabad India Department of Civil Engineering Dr. Bhim Rao Ambedkar Polytechnic College Gwalior India Computer Science Engineering Department Rajarajeswari College of Engineering Bangalore India Department of Building Engineering College of Architecture and Planning Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia Department of Civil Engineering Centurion University of Technology and Management Gajapati India Department of Civil Engineering Madhav Institute of Technology and Science Gwalior India

Construction project management often involves optimizing time and cost while ensuring minimal environmental impact. This study presents an innovative hybrid approach combining non-dominated sorting genetic algorithm III (NSGA-III) and multi-objective particle swarm optimization (MOPSO) to address the time-cost-environmental sustainability trade-off (TCEST) in construction projects. The proposed model aims to minimize project completion time and cost while maximizing environmental sustainability. A case study is conducted to validate the model, incorporating diverse construction activities and their respective time, cost, and environmental sustainability metrics. The results reveal Pareto-optimal solutions demonstrating significant trade-offs among the three objectives. The hybrid approach outperforms standalone algorithms in terms of solution diversity, convergence, and hypervolume indicators. Weighted sum methods are employed to select the most suitable solution from the Pareto front based on project priorities. Correlation analysis further explores interdependencies among objectives, emphasizing the feasibility of balancing these critical factors. The study contributes a robust decision-support tool for sustainable project planning, facilitating informed decision-making in modern construction management. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2025.

关键词： Hybrid Optimization MOPSO NSGA-III Sustainable Construction Time–Cost-Environmental Trade-off

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Revealing the difference of Stark tuning rate between interface and bulk by surface-enhanced infrared absorption spectroscopy

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Chinese Chemical Letters 2025年第2期36卷 433-436页

作者： Manyu Zhu Fei Liang Lie Wu Zihao Li Chen Wang Shule Liu Xiue Jiang State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China School of Materials Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China Research Center for Analytical Science College of ChemistryNankai UniversityTianjin 300071China

Revealing the factors that affect the vibrational frequency of Stark probe at interface is a pre-requirement for evaluating the absolute interfacial electric *** using surface-enhanced infrared absorption(SEIRA)spectroscopy,attenuated total reflection(ATR)spectroscopy and molecular dynamics(MD),we reveal the assembled C≡N at gold nanofilm exhibits a reduced Stark tuning rate(STR)referring to the vibrational frequency shift in response to electric field comparing with the bulk which was regulated by the electron transfer between S and *** findings lead to a deeper understanding of the vibrational Stark effect at the interface and provide guidance for improving the interface electric field theory.

关键词： Surface-enhanced infrared spectroscopy Attenuated total reflection spectroscopy Vibrational stark effect Stark tuning rate Cyano group

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Probing into the Triggering Effects of Zinc Presence on the Mineral Formation, Hydration Evolution, and Mechanical Properties of Fluorine-Bearing Clinker

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Langmuir 2025年第18期41卷 2025 Apr 30页

作者： Da, Yongqi He, Tingshu Ma, Xiaodong Yang, Renhe Lin, Yike Yang, Qixuan Bai, Chao College of Materials Science and Engineering Xi'an University of Architecture and Technology Xi'an710055 China State Key Laboratory of Solid Waste Reuse for Building Materials Beijing Building Materials Academy of Sciences Research institution Beijing100041 China

The foreign impurity ions, especially fluorine and zinc, are introduced simultaneously when hazardous waste fluorine-containing sludge is utilized as a partial alternative raw material to prepare low-carbon cement clinker;however, the complex influences of the presence of fluorine and zinc on the properties of silicate cement clinker remain unclear, and related studies on the underlying mechanisms are rare. The findings revealed that the presence of ZnO triggers synergistic mineralization effects on the formation of clinker minerals, resulting in quite low free lime levels and high immobilization rates of F and Zn ions. It also assists the formation of brownmillerite and alite but inhibits that of tricalcium aluminate and belite. The copresence of ZnO and CaF2 stabilizes R-type alite, and the microstructure of the final clinker changes, with new threadlike defects appearing on the surface of mineral phases. F ions tend to distribute mainly in the silicate phases, whereas Zn ions tend to distribute mainly in the molten liquid phases. Most F- in CaF2 potentially enters the alite by replacing O2- and binding with Ca2+, while most Zn2+ potentially enters the brownmillerite by replacing Fe3+ and binding with O2+. The copresence of CaF2 and ZnO accelerates the initial hydration reaction of the prepared cement, prolongs the induction period, and delays the acceleration of hydration. Besides, while the single presence of CaF2 suppresses the strength development of cement before 3 days, the copresence of CaF2 and ZnO sharply overwhelms the development before 7 days, but significantly elevates the strength at 28 days (the highest being 120.6 MPa compared to the Blank at 90.5 MPa). © 2025 American Chemical Society. All rights reserved.

关键词： Hydration

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