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One-step constructing advanced N-doped carbon@metal nitride as ultra-stable electrocatalysts via urea plasma under room temperature

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Chinese Chemical Letters 2024年第11期35卷 486-491页

作者： Tao Tang Chen Li Sipu Li Zhong Qiu Tianqi Yang Beirong Ye Shaojun Shi Chunyang Wu Feng Cao Xinhui Xia Minghua Chen Xinqi Liang Xinping He Xin Liu Yongqi Zhang Institute of Fundamental and Frontier Science University of Electronic Science and Technology of ChinaChengdu 611731China Department of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China College of Materials Science&Engineering Zhejiang University of TechnologyHangzhou 310014China School of Chemistry and Materials Engineering Changshu Institute of TechnologyChangshu 215500China State Key Laboratory of Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 611731China Department of Engineering Technology Huzhou CollegeHuzhou 313000China Key Laboratory of Engineering Dielectric and Applications(Ministry of Education) School of Electrical and Electronic EngineeringHarbin University of Science and TechnologyHarbin 150080China State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou UniversityFuzhou 350116China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

Highly active transition metal nitrides are desirable for electrocatalytic reactions,but their long-term stability is still unsatisfactory and thus limiting commercial ***,for the first time,we report a unique and universal room-temperature urea plasma method for controllable synthesis of N-doped carbon coated metal(Fe,Co,Ni,etc.)nitrides arrays *** preformed metal oxides arrays can be successfully converted into metal nitrides arrays with preserved nanostructures and a thin layer of N-doped carbon(N-C)via one-step urea ***,as a representative case,N-C@CoN nanowire arrays are illustrated and corresponding formation mechanism by plasma is ***,the designed N-C@Co N catalysts deliver excellent electrocatalytic activity and long-term stability both in oxygen evolution reaction(OER)and urea oxidation reaction(UOR).For OER,a low overpotential(264 mV at 10 mA/cm^(2))and high stability(>50 h at 20 mA/cm^(2))are *** UOR,a current density of100 m A/cm^(2) is achieved at only 1.39 V and maintain over 100 *** calculations reveal that the synergetic coupling effect of CoN and N-C can significantly facilitate the charge-transfer process,optimize adsorbed intermediates binding strength and further greatly decrease the energy *** strategy provides a novel method for fabrication of N-C@metal nitrides as highly active and stable catalysts.

关键词： Urea plasma Metal nitrides Carbon shell Oxygen evolution reaction Urea oxidation reaction

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Programming an efficient technique for designing smart C-doped MIC with dual self-protection forinformation and high-energy

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Rare Metals 2024年第12期43卷 6694-6703页

作者： Xiao-Gang Guo Tao-Tao Liang Hui-Sheng Huang Bin-Fang Yuan Fu-Lan Zhang Yi-Huang Chen Lu Liu Xun Cui Chongqing Key Laboratory of Inorganic Special Functional Materials College of Chemistry and Chemical EngineeringYangtze Normal UniversityChongqing408100China Department of Orthopedic Surgery Chongqing Sports Medicine CenterSouthwest HospitalThe Third Military Medical UniversityChongqing400038China College of Chemistry and Materials Engineering Wenzhou UniversityWenzhou325035China Institute of Sustainability for Chemicals Energy and Environment(ISCE2)Agency for ScienceTechnology and ResearchSingapore627833Singapore State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan430200China

Constructing self-protected metastable intermolecular composites(MICs) enables the regulation of microstructures towards boosting controllable detonation performance,and also prevents information leakage,which is meaningful but ***,a convenient and efficient method of combining highly-controlled electrophoretic assembly,surface modification and microwave heat treatment was employed to design promising heattriggered wettability switchable high-energy smart C-doped Al/Cr_(2)O_(3)MIC,and surface modification mechanism was proposed,*** anti-wetting ability of the product was demonstrated by a series of tests of water contact angle,impact resistance,immersion,selfcleaning,*** key information recording/encryption procedures were realized by constructing a hydrophilic/hydrophobic interface and adjusting the wettability of the *** addition,the output heat of asobtained smart MIC can reach ~1.5 kJ·g^(-1),and its attenuation rate was only ~30% even after underwater aging,further verifying its potential ***,our design provides a promising strategy for engineering smart MIC with diversified functional structures for blasting applications and beyond.

关键词： High-energy MIC Information self-protection Exothermicity Stability

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Color prediction model of BP neural network based on multi-source feature fusion 5

Color prediction model of BP neural network based on multi-s...

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5th International Seminar on Artificial Intelligence, Networking and Information technology, AINIT 2024

作者： Wu, Xinru Yuan, Li School of Electronic and Electrical Engineering Wuhan Textile University Hubei Wuhan China School of Electronic and Electrical Engineering Wuhan Textile University State Key Laboratory of New Textile Materials and Advanced Processing Technologies Hubei Wuhan China

ISBN: (纸本)9798350385557

Aiming at the limitation of fabric color characterization with a single data source, multi-source data feature fusion method was used to characterize fabric color information. The correlation coefficient and the error of BP neural network color matching model are used for quantitative analysis. The results show that for cotton and polyester fabrics, the correlation coefficients of multi-data source fusion features are greater than 0.9, which is higher than that of single data source, and the characterization ability is stronger. At the same time, this method can significantly reduce the model error and improve the precision. The average error is less than 0.03, and the accuracy of the model is improved by more than 9% compared with the input of a single data source, which proves the effectiveness and universality of the proposed method. © 2024 IEEE.

关键词： Color matching

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A Passive Sweat-Responsive Thermoregulatory textile with the Largest Thermal Comfort Zone

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ACS Nano 2025年第21期19卷 19977-19988页

作者： Wang, Xueyang Du, Xiran Xu, Duo Wei, Tianqi Zhang, Qian Chen, Zipeng Kong, Desheng Wei, Kai Zhou, Lin Zhu, Bin Xu, Weilin Zhu, Jia National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Frontiers Science Center for Critical Earth Material Cycling Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China State Key Laboratory of New Textile Materials and Advanced Processing Wuhan Textile University Wuhan430200 China National Engineering Laboratory for Modern Silk College of Textile and Clothing Engineering Soochow University Suzhou215123 China

Maintaining the human body temperature within the thermally comfortable range under volatile temperatures and environments is critical from both the perspectives of human health and energy saving. Therefore, developing thermoregulatory textiles that have a large comfort zone in response to complex environmental temperature changes has been persistently pursued. Here, we demonstrate that a passive sweat-responsive thermoregulatory (PSRT) textile, composed of a unidirectional liquid-transported polycaprolactam (PA6)/metal bilayer, can tune mid-infrared (MIR) radiation and sweat evaporation simultaneously, thus achieving a substantial expansion of the thermal comfort zone in response to dynamic conditions. Specifically, for heating mode, the metalized bilayer PSRT textile intrinsically possesses low emissivity (ϵMIR ∼0.233) for excellent radiative heating. As the environmental temperature increases or during heavy exercise, sweat secretion by the skin increases rapidly, which triggers the autonomous switch to the cooling mode. Sweat rapidly transports to the top PA6 layer, facilitating rapid evaporation through the unidirectional liquid transport design;meanwhile, the PSRT textile automatically switches from low emissivity to high emissivity (ϵMIR ∼0.955) for radiative cooling. As a result, this PSRT textile expands the thermal comfort zone by 24.7 °C (8.3-33.0 °C), setting a performance record among passive thermoregulatory textiles. It is expected that the further advancement of the passive sweat-responsive thermoregulatory textile with an increasing thermal comfort zone can not only provide comfort for the human body with a minimized carbon footprint but also significantly expand the geographic and seasonal restrictions of human activity. © 2025 American Chemical Society.

关键词： Energy efficiency

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Removal of methylene blue from dye wastewater by cattail leaf-based porous carbon materials

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Environmental technology Reviews 2024年第1期13卷 663-679页

作者： Li, Weiwei Chen, Shuhui Tian, Mengmeng Ke, Guizhen State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan China

In this work, cattail leaf-based porous carbon materials (KCL-800-2 and PCL-500-2) with high specific surface were prepared from cattail leaf powder. The structure and morphology of cattail leaf-based porous carbon materials were characterized using SEM and BET. The results showed that the cattail leaf-based porous carbon materials have well-developed pore structure. The highest adsorption capacity of KCL (199.995 mg·g−1) was obtained with an alkaline-carbon ratio of 4:1, an activation temperature of 800°C and an activation time of 2 h. The highest adsorption capacity of PCL (92.0675 mg·g−1) was obtained with a phosphoric acid-carbon ratio of 2:1, an activation temperature of 500°C and an activation time of 2 h. The conditions for the adsorption of methylene blue on the KCL-800-2 and PCL-500-2 were investigated by a one-factor test. The optimization of the adsorption of methylene blue by KCL-800-2 and PCL-500-2 was carried out by a one-way test, and the results showed that the optimal adsorption conditions were temperature 298.15 K, PH 7, adsorption time 12 h, adsorbent dosage of 15, 20 mg, and the initial concentration of MB solution of 100 mg·L−1, 50 mg·L−1, and the adsorption capacity of the adsorbent under the conditions reached 127.3337 mg·g−1, 44.9886 mg·g−1 and 44.9886 mg·g−1, respectively. 44.9886 mg·g−1, respectively. The adsorption data of KCL-800-2 and PCL-500-2 on methylene blue (MB) fitted well with the Langmuir isothermal model and pseudo-second-order model. The adsorption process was a spontaneous, heat-absorbing entropy, monomolecular layer adsorption process. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Chemical activation

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Analytical and numerical study of chirped optical solitons in a spatially inhomogeneous polynomial law fiber with parity-time symmetry potential

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Communications in Theoretical Physics 2023年第2期75卷 28-38页

作者： Yu Zhong Houria Triki Qin Zhou Research Group of Nonlinear Optical Science and Technology School of Mathematical and Physical SciencesWuhan Textile UniversityWuhan 430200China Radiation Physics Laboratory Department of PhysicsFaculty of SciencesBadji Mokhtar UniversityP.O.Box 1223000 AnnabaAlgeria State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

This work studies the dynamical transmission of chirped optical solitons in a spatially inhomogeneous nonlinear fiber with cubic-quintic-septic nonlinearity,weak nonlocal nonlinearity,self-frequency shift and parity-time(PT)symmetry potential.A generalized variable-coefficient nonlinear Schr?dinger equation that models the dynamical evolution of solitons has been investigated by the analytical method of similarity transformation and the numerical mixed method of split-step Fourier method and Runge–Kutta *** analytical self-similar bright and kink solitons,as well as their associated frequency chirps,are derived for the first *** found that the amplitude of the bright and kink solitons can be controlled by adjusting the imaginary part of the PT-symmetric ***,the influence of the initial chirp parameter on the soliton pulse widths is quantitatively *** is worth emphasizing that we could control the chirp whether it is linear or nonlinear by adjusting optical fiber *** simulation results of bright and kink solitons fit perfectly with the analytical ones,and the stabilities of these soliton solutions against noises are checked by numerical simulation.

关键词： solitons symmetry inhomogeneous

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Alamouti code based on block repetition in FBMC/OQAM systems

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Digital Communications and Networks 2022年第1期8卷 58-63页

作者： Dejin Kong Xing Zheng Yukang Tian Tao Jiang Yue Zhang School of Electronic and Electrical Engineering Wuhan Textile UniversityWuhanChina State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhanChina Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhanChina Department of Engineering University of LeicesterLeicesterLEI 7RHUK

In this paper,we address the Alamouti code in Filter-Bank Multicarrier with Offset Quadrature Amplitude Modulation(FBMC/OQAM)and propose a novel block-wise Alamouti code,in which a repeated block is designed to eliminate the imaginary interference among FBMC/OQAM *** proposed approach exhibits a higher spectral efficiency than the conventional block-wise Alamouti scheme,as only one column of zero symbols is used as a guard interval instead of ***,compared to the conventional scheme,the bit error ratio is improved in the proposed block-wise Alamouti,as the assumption on channel invariance at two adjacent sub-carriers is not *** results indicate that,with a significantly reduced overhead,the proposed Alamouti scheme achieves better performance over the conventional block-wise Alamouti scheme.

关键词： Alamouti Filter-bank multicarrier Block repetition Imaginary interference

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Preparation of Kenaf Biochar and Its Adsorption Properties for Methylene Blue

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Journal of Renewable materials 2022年第12期10卷 3391-3404页

作者： Xin Wan Zhigang Xia Xiaoli Yang Chenfeng Zhou Yuanming Zhang Haoxi Ben Guangting Han Wei Jiang College of Textiles Qingdao UniversityQingdao260000 China State Key Laboratory of Bio Fibers and Eco-Textiles Qingdao UniversityQingdao266071China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan430000China Key Laboratory of Textile Fiber and Products(Wuhan Textile University) Ministry of EducationWuhan430200China

The toxic dyestuff's from printing and dyeing wastewater have caused serious damages to the ecological environ-ment,thus exploring effective methods to remove them having become a key ***,a series of biochar sam-ples were synthesized form kenaf to adsorb methylene blue(MB),which was acted as the dye representative for the test of adsorption capacity due to the presence of abundant double bond and aroma tic heterocyclic *** tuning the raw materials and pyrolysis temperature,a super adsorption capacity about 164.21 mg·g^(-1) was obtained over the biochar that pyrolyzed at 700℃ with the kenaf fiber as raw material Through the physical adsorption,elemental analysis,FTIR spectra and NH_(3)-TPD,it was found the high surface area and pore volume of biochar played a key role in the adsorption of MB,and the acidic sites would also assist the adsorption ***,the adsorption kinetic model was ftted and calculated,implying the MB physically adsorbed on the bio-char rapidly and then occurred chemical adsorption on the acidic *** addition,through KBC700 recycling experiments,it was found that kenaf biochar had a good binding force to MB,which effectively avoided secondary *** work provides important insights for the adsorption mechanism of MB by biochar,also offers some guidance for the further synthesis of biochar from various biomass.

关键词： Kenaf biochar pyrolysis temperature adsorption methylene blue kinetic analysis

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One-step solvothermal preparation of Fe-doped Ni_(0.85)Se/NF:An efficient catalyst for the oxygen evolution reaction

ChemPhysMater

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ChemPhysMater 2025年第1期4卷 78-85页

作者： Longqi Zhu Runze Wang Chen Wang Shuhan Yang Haizhen Liu Bo Xing Honghui Cheng Kuikui Wang Institute of Materials for Energy and Environment Laboratory of New Fiber Materials and Modern TextileGrowing Basis for State Key LaboratoryCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsGuangxi UniversityNanning 530004China National Engineering Laboratory of Circular Economy Sichuan University of Science and EngineeringZigong 643000China School of Mechanical Engineering Yangzhou UniversityYangzhou 225127China Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou UniversityChangzhou 213164China

Metal-cation doping is a fundamental strategy for enhancing catalyst ***-doped Ni_(0.85)Se/NF(Fe-Ni_(0.85)Se/NF)nanoparticles were prepared at 80°C via Fe^(2+)etching *** addition of Fe altered the coordination environment of the Ni species along with the catalyst's morphology,creating additional active ***,the synergistic interaction between the bimetallic components augmented the built-in activity and accelerated reaction *** Fe-Ni_(0.85)Se/NF electrocatalysts demonstrated remarkable catalytic activity for the oxygen evolution reaction(OER),with an acceptable overpotential of 276 mV and a Tafel slope of 58.1 mV dec^(−1)at 100 mA cm^(−2).Moreover,they demonstrated exceptional *** situ Raman and X-ray photoelectron spectroscopy(XPS)analyses showed that the excellent OER performance stemmed from the reconstruction-induced hydroxyl *** study offers a novel approach for streamlining the synthesis procedures and reducing the experimental costs for developing high-efficiency electrocatalysts.

关键词： Doping Selenylation Hydrothermal reaction Oxygen evolution reaction Electrocatalysts

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Bifunctional optical probe based on La_(3)Mg_(2)SbO_(9):Mn^(4+)phosphors for temperature and pressure sensing

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Journal of materials Science & technology 2024年第27期194卷 98-109页

作者： Zhanglin Chen Songmo Du Fei Li Shijia Zhang Shuo Zhao Zhaobo Tian Jie Zhang Xuanyi Yuan Guanghua Liu Kexin Chen State Key Laboratory of New Ceramics&Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China School of Microelectronics Southern University of Science and TechnologyShenzhen 518055China Advanced Ceramics and Structures Center Yongjiang LaboratoryNingbo 315021China Beijing Key Laboratory of Optoelectronic Functional Materials&Micro-nano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China

Photoluminescent materials,serving as optical probes,constitute a significant medium for reliable re-mote sensing of fundamental state parameters such as temperature and ***,we report a novel Mn^(4+)-activated perovskite-type La_(3) Mg2 SbO9 phosphor(LMS:Mn^(4+))for bifunctional application in both thermometry and *** excitation with 341 nm,LMS:Mn^(4+)(0.7%Mn^(4+))emits a bright narrow-band red light peaking at 705 nm with an FWHM(full width at half maximum)of 32 *** a thermometer,when the temperature surpasses 298 K,non-radiative transitions from the ^(2)Eg excited state lead to a sharp decrease in decay lifetimes with increasing *** allows for lifetime-based luminescence thermometry with a relative sensitivity of 2.52%K^(−1) at 391 ***,LMS:Mn^(4+)was processed into a temperature-sensing coating and its non-contact thermometry functionality was *** manometry applications,the LMS:Mn^(4+)probe experiences substantial pressure-dependent redshift with a sensitivity of 1.20 nm GPa^(−1) in the testing range of 9.48 GPa,which is about 3.3 times that of conventional ruby ***,its FWHM consistently remains below 37 nm,which con-tributes to a high reliability of pressure *** above results indicate that the LMS:Mn^(4+)constitutes a promising bifunctional luminescence probe material in thermometry and manometry.

关键词： Perovskite Phosphors Thermometry Manometry

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