Xin Li

Hunan University

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Lan Jiang

Beijing Institute of Technology

Sumei Wang

Beijing Institute of Technology

Yongfeng Lu

University of Nebraska–Lincoln

Pei Zuo

Beijing Institute of Technology

Ran Peng

Dalian Maritime University

Yongjiu Yuan

Beijing Institute of Technology

Mengyao Tian

Chinese Academy of Medical Sciences & Peking Union Medical College

Mengmeng Wang

Yokohama National University

Weihua Zhu

Nanjing University of Science and Technology

Liangti Qu

Tsinghua University

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Beijing Institute of Technology

102

Chinese Academy of Sciences

Hunan University

Tsinghua University

University of Chinese Academy of Sciences

University of Science and Technology of China

Sun Yat-sen University

Jilin University

Chongqing University of Technology

Shanghai Jiao Tong University

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Hydrogen-bonded structures and low temperature transitions of the confined water in subnano channels

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy (2023)

Shuanglong Chen Jian Wen Wang Xin Li Hang Lv Qiushi Wang

Properties of water

Thermogravimetric analysis

Liquid water

Water cluster

Amorphous ice

Confined water

10.1016/j.saa.2023.122912

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Citations (3)

Controllable Fabrication of Hydrophilic Surface Micro/Nanostructures of CFRP by Femtosecond Laser

ACS Omega (2024)

Pei Zuo Tongfeng Liu Fang Li Guoyan Wang Kaihu Zhang

Carbon fiber reinforced polymer (CFRP), a highly engineered lightweight material with superior properties, is widely used in industrial fields, such as aerospace, automobile, and railway transportation, as well as medical implants and supercapacitor. This work presents an effective surface treatment method for the controllable fabrication of hydrophilic surface micro/nanostructures of CFRP through femtosecond laser processing. Selective removal of the epoxy resin and leaving the carbon fibers exposed are achieved when CFRP is weakly ablated by a femtosecond laser. The diameters and structures of the carbon fibers can be controlled by adjusting the laser processing parameters. Three-dimensional surface micro/nanostructures are processed when CFRP is strongly ablated by a femtosecond laser. Meanwhile, the transformation of the sp2 orbitals to sp3 orbitals of graphitic carbons of carbon fibers is induced by a femtosecond laser. Moreover, the investigation of surface roughness and wettability of femtosecond laser-processed CFRP indicates increased roughness and excellent hydrophilicity (a contact angle of 28.1°). This work reveals the effect of femtosecond laser processing on the regulation of the physicochemical properties of CFRP, which can be applicable to surface treatment and performance control of other fiber-resin composites. The excellent hydrophilicity will be conducive to the combination of CFRP with other materials or to reducing the friction resistance of CFRP used in medical implants.

Carbon fibers

10.1021/acsomega.4c00148

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Citations (4)

Erratum to “Formation kinetics of polyethersulfone with cardo membrane via phase inversion” [J. Membr. Sci. 314 (2008) 206–211]

Journal of Membrane Science (2009)

Xin Li Cuixian Chen Jiding Li

Phase inversion

10.1016/j.memsci.2009.05.015

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Citations (4)

Simulation of femtosecond laser-induced periodic surface structures on fused silica by considering intrapulse and interpulse feedback

Journal of Applied Physics (2024)

Jiaxin Sun Sumei Wang Weihua Zhu Xin Li Lan Jiang

The formation of laser-induced periodic surface structures (LIPSSs) on fused silica upon irradiation with plane wave, double pulse, spot processing, and scanning processing (pulse duration tp = 35 fs, center wavelength λ = 800 nm, low repetition rate ≈1 kHz) is studied theoretically with an improved three-dimensional finite-difference time-domain plasma model. The model covers both intrapulse feedback under single shot and interpulse feedback under multi-shots, thus enabling better prediction of transient responses during laser–material interaction and the evolution of the ablated morphology and accumulated defects’ density with more shots. In simulations of a single plane wave, a double pulse can modulate LIPSS periodicity. In simulations of spot processing with Gaussian beam, an increase in the number of shots results in a noticeable ablation pattern where high-spatial-frequency LIPSS surrounds low-spatial-frequency LIPSS at a fluence of 2.8 J/cm2. Moreover, simulations of scanning processing with Gaussian beam showcase the broad applicability of this model, revealing that the orientation of the LIPSS depends on the polarization direction rather than the scanning path. This new model provides a powerful tool to simulate the formation of LIPSS on silica, particularly when temporally modulated laser is involved or predicting the evolution of morphology dependent on the number of shots.

10.1063/5.0205299

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Citations (1)

Study on microstructure and mechanical properties of femtosecond laser welding of non-optical contact quartz glass and Zr-4

Materials Letters (2024)

Xin Li Xiangyu Xu Xian Tang Ming Liu Sijie Li

Fused quartz

10.1016/j.matlet.2024.137832

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Citations (1)

First-principles electron dynamics control simulation of diamond under femtosecond laser pulse train irradiation

Journal of Physics Condensed Matter (2012)

Cong Wang Lan Jiang Feng Wang Xin Li Yanping Yuan

A real-time and real-space time-dependent density functional is applied to simulate the nonlinear electron–photon interactions during shaped femtosecond laser pulse train ablation of diamond. Effects of the key pulse train parameters such as the pulse separation, spatial/temporal pulse energy distribution and pulse number per train on the electron excitation and energy absorption are discussed. The calculations show that photon–electron interactions and transient localized electron dynamics can be controlled including photon absorption, electron excitation, electron density, and free electron distribution by the ultrafast laser pulse train.

10.1088/0953-8984/24/27/275801

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Citations (28)

Extracorporeal membrane oxygenation for the management of respiratory failure caused by diffuse alveolar hemorrhage.

PubMed (2009)

Zhen Guo Xin Li Liyan Jiang Lingfeng Xu

Extracorporeal membrane oxygenation (ECMO) was developed as a supportive therapy to treat severe respiratory failure. When conventional mechanical ventilation has failed or when there is not enough time to treat the pathology, ECMO has the potential to sustain life. In this report, successful use of ECMO to support an adult patient with antineutrophil cytoplasmic antibody (ANCA)-associated systemic vasculitides complicated by severe respiratory failure caused by diffuse alveolar hemorrhage will be discussed.

Diffuse alveolar hemorrhage

Extracorporeal

Source

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Citations (20)

Electric Field Assisted Femtosecond Laser Preparation of Au@TiO2 Composites with Controlled Morphology and Crystallinity for Photocatalytic Degradation

Materials (2021)

Xiaojie Li Xin Li Pei Zuo Xiaozhe Chen Misheng Liang

TiO2 is popular in photocatalytic degradation dye pollutants due to its abundance and its stability under photochemical conditions. Au loaded TiO2 can achieve efficient absorption of visible light and deal with the problem of low conversion efficiency for solar energy of TiO2. This work presents a new strategy to prepare Au nanoparticles-loaded TiO2 composites through electric−field−assisted temporally−shaped femtosecond laser liquid-phase ablation of Au3+ and amorphous TiO2. By adjusting the laser pulse delay and electric field parameters, gold nanoparticles with different structures can be obtained, such as nanospheres, nanoclusters, and nanostars (AuNSs). AuNSs can promote the local crystallization of amorphous TiO2 in the preparation process and higher free electron density can also be excited to work together with the mixed crystalline phase, hindering the recombination between carriers and holes to achieve efficient photocatalytic degradation. The methylene blue can be effectively degraded by 86% within 30 min, and much higher than the 10% of Au nanoparticles loaded amorphous TiO2. Moreover, the present study reveals the crystallization process and control methods for preparing nanoparticles by laser liquid ablation, providing a green and effective new method for the preparation of high-efficiency photocatalytic materials.

Nanoclusters

Laser Ablation

10.3390/ma14143816

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Citations (4)

Laser maskless fast patterning for multitype microsupercapacitors

Nature Communications (2023)

Yongjiu Yuan Xin Li Lan Jiang Misheng Liang Xueqiang Zhang

Downsizing electrode architectures have significant potential for microscale energy storage devices. Asymmetric micro-supercapacitors play an essential role in various applications due to their high voltage window and energy density. However, efficient production and sophisticated miniaturization of asymmetric micro-supercapacitors remains challenging. Here, we develop a maskless ultrafast fabrication of multitype micron-sized (10 × 10 μm2) micro-supercapacitors via temporally and spatially shaped femtosecond laser. MXene/1T-MoS2 can be integrated with laser-induced MXene-derived TiO2 and 1T-MoS2-derived MoO3 to generate over 6,000 symmetric micro-supercapacitors or 3,000 asymmetric micro-supercapacitors with high-resolution (200 nm) per minute. The asymmetric micro-supercapacitors can be integrated with other micro devices, thanks to the ultrahigh specific capacitance (220 mF cm-2 and 1101 F cm-3), voltage windows in series (52 V), energy density (0.495 Wh cm-3) and power density (28 kW cm-3). Our approach enables the industrial manufacturing of multitype micro-supercapacitors and improves the feasibility and flexibility of micro-supercapacitors in practical applications.

Microscale chemistry

Power density

Energy density

10.1038/s41467-023-39760-3

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Citations (24)

Fabrication of Low-Tortuosity Thick Electrodes with Minimal Material Loss by Temporally Shaped Ultraviolet Femtosecond Laser

Research Square (Research Square) (2024)

Qian Cheng Junrui Wu Ruoxi Wang Lan Jiang Xin Li

Abstract Fabrication of through holes can reduce the electrode tortuosity of thick electrodes. However, traditional through hole preparation methods are usually complex and incompatible with calendaring. In particular, the excessive loss introduced by through holes reduces the space utilization rate and offsets the increase in energy density. Here, an array of high-density micro-holes is fabricated by temporally shaped ultraviolet femtosecond laser. Using this technique, we achieve a maximum aspect ratio of 47 (6 µm in diameter) and ensure minimal material loss (< 1%) on thick electrodes with thicknesses of 280 µm. The tortuosity of the electrode is significantly reduced by nearly half, thereby boosting the gravimetric energy density of batteries by 9.32–17.26%, or increase the power density by 100 to 400%, and double the lifetime. This work demonstrates a simple approach for fabricating low-tortuosity electrodes that substantially improve power density, energy density and lifetime of batteries.

Tortuosity

Ultraviolet

10.21203/rs.3.rs-5340643/v1

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