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Aqueous-Phase Synthesis ofAg-TiO2-Reduced Graphene Oxide and Pt-TiO2-Reduced Graphene Oxide Hybrid Nanostructures and Their Catalytic Properties

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Nano Research 2011年第11期4卷 1153-1162页

作者： Ping Wang Lei Han Chengzhou Zhu yueming zhai Shaojun Dong State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun130022 China

We demonstrate an aqueous solution method for the synthesis of a Ag-TiO2-reduced graphene oxide （rGO） hybrid nanostructure （NS） in which the Ag and TiO2 particles are well dispersed on the rGO sheet. The Ag-TiO2-rGO NS was then used as a template to synthesize Pt-TiO2-rGO NS. The resulting hybrid NSs were characterized by transmission electron microscopy （TEM）, high-resolution TEM （HRTEM）, energy-dispersive X-ray （EDX） spectroscopy, X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS）, Fourier transform infrared （FTIR） spectroscopy, UV-vis spectroscopy, Raman spectroscopy, inductively coupled plasma mass spectrometry （ICP-MS）, and catalytic studies. It was found that TiO2-rGO, Ag-TiO2-rGO and Pt-TiO2-rGO NSs all show catalytic activity for the reduction of p-nitrophenol to p-aminophenol by NaBH4, and that Pt-TiO2-rGO NS exhibits the highest catalytic activity as well as excellent stability and easy recyclability.

关键词： Reduced graphene oxide TiO2 silver platinum hybrid nanostructures catalytic

Promoting Electrocatalytic CO_(2) Reduction to CO via Sulfur-Doped Co-N-C Single-Atom Catalyst

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Chinese Journal of Chemistry 2023年第24期41卷 3553-3559页

作者： Zhiming Wei Yuhang Liu Jie Ding Qinye He Qiao Zhang yueming zhai The Institute for Advanced Studies Wuhan UniversityWuhanHubei430072 China School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhouJiangsu215009 China

Electrocatalytic reduction of CO_(2) to fuels and chemicals possesses huge potential to alleviate current environmental *** doping in metal-nitrogen-carbon(M-N-C)single-atom catalysts(SACs)has been found to be capable to promote the electrocatalytic CO_(2) reduction reaction(CO_(2)RR).However,the origin of the enhanced activity is still ***,we report that sulfur-doped cobalt-nitrogen-carbon single-atom catalyst(Co1-SNC)exhibits superior CO_(2)RR performance compared to sulfur-free counterpart(Co1-NC).On the basis of in situ attenuated total reflectance surface-enhanced infrared absorption spectroscopy(ATR-SEIRAS),kinetic isotope effect(KIE)and theoretical calculation,it is demonstrated that sulfur doping can promote water activation,elevate the d-band center of Co active site,and reduce the free energy of*COOH intermediate *** work deepens the understanding of the CO_(2)RR chemistry over heteroatom-doped SACs for designing efficient CO_(2)RR processes.

关键词： Electrocatalytic CO_(2)reduction Doping Heterogeneous catalysis Single-atom catalysts ATR-SEIRAS

One-Step, Solvothermal Synthesis of Graphene-CdS and Graphene-ZnS Quantum Dot Nanocomposites and Their Interesting Photovoltaic Properties

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Nano Research 2010年第11期3卷 794-799页

作者： Ping Wang Tengfei Jiang Chengzhou Zhu yueming zhai Dejun Wang Shaojun Dong State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China College of Chemistry Jilin UniversityChangchun 130012China

The synthesis of graphene-semiconductor nanocomposites has attracted increasing attention due to their interesting optoelectronic *** the synthesis of such nanocomposites,with decorated particles well dispersed on graphene,is still a great *** work reports a facile,one-step,solvothermal method for the synthesis of graphene-CdS and graphene-ZnS quantum dot nanocomposites directly from graphene oxide,with CdS and ZnS very well dispersed on the graphene *** measurements showed that the integration of CdS and ZnS with graphene significantly decreases their *** photovoltage studies revealed that the graphene-CdS nanocomposite exhibits a very unexpected strong positive photovoltaic response,while separate samples of graphene and CdS quantum dots(QDs)of a similar size do not show any photovoltaic response.

关键词： Graphene CdS ZnS quantum dots charge transfer photovoltaic

Pt_(1)/Ni_(6)Co_(1)layered double hydroxides/N-doped graphene for electrochemical non-enzymatic glucose sensing by synergistic enhancement of single atoms and doping

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Nano Research 2023年第1期16卷 318-324页

作者： Baojun Long Peiyu Cao Yuanmeng Zhao Qianqian Fu Yan Mo yueming zhai Juejing Liu Xingyi Lyu Tao Li Xiaofeng Guo Changsheng Shan Minghua Zeng Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules College of Chemistry and Chemical EngineeringHubei UniversityWuhan 430062China Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical SciencesGuangxi Normal UniversityGuilin 541004China The Institute for Advanced Studies(IAS) Wuhan UniversityWuhan 430072China Material Science and Engineering Program Washington State UniversityPullmanWA 99164USA Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics Washington State UniversityPullmanWA 99164USA X-ray Science Division Argonne National LaboratoryArgonneIL 60439USA Department of Chemistry and Biochemistry Northern Illinois UniversityDeKalbIL 60115USA

The development of novel single-atom catalysts is important for highly efficient electrochemical catalysis and *** this work,a novel Pt single atoms(SAs)supported on Ni_(6)Co_(1)layered double hydroxides/nitrogen-doped graphene(Pt_(1)/Ni_(6)Co_(1)LDHs/NG)was constructed for electrochemical enzyme-free catalysis and sensing towards *** loading of Pt single atoms increases with doping of Co atoms that generate more anchoring sites for Pt *** resulting Pt_(1)/Ni_(6)Co_(1)LDHs/NG exhibits low oxidative potential of 0.440 V with high sensitivity of 273.78μA·mM^(−1)·cm^(−2)toward glucose,which are 85 mV lower and 15 times higher than those of Ni(OH)_(2),***_(1)/Ni_(6)Co_(1)LDHs/NG also shows excellent selectivity and great stability during 5-week *** and experimental results show that the boosted performance of Pt_(1)/Ni_(6)Co_(1)LDHs/NG originates from its stronger binding energy with glucose and the synergistic effect of Pt SAs,Co doping,and *** work provides a general strategy of designing highly active SACs for extending their application in electrochemical sensing.

关键词： single-atom catalysts electrochemical sensor layered double hydroxides nitrogen-doped graphene synergistic effect

纳米颗粒表面蛋白冠的形成机制和表征技术研究进展

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无机化学学报 2024年第12期40卷 2318-2334页

作者：张永杰黄彬铜翟月明武汉大学高等研究院武汉430072 武汉大学物理与技术学院武汉430072

在生物体液环境中,纳米颗粒表面会快速结合蛋白质,形成蛋白冠,这会极大地改变其理化性质,并影响与生物系统的相互作用。理解蛋白冠的形成机制和动态变化有助于优化纳米颗粒的设计,提高纳米药物的靶向性和有效性,减少副作用。在这篇综述... 详细信息

在生物体液环境中,纳米颗粒表面会快速结合蛋白质,形成蛋白冠,这会极大地改变其理化性质,并影响与生物系统的相互作用。理解蛋白冠的形成机制和动态变化有助于优化纳米颗粒的设计,提高纳米药物的靶向性和有效性,减少副作用。在这篇综述中,我们首先回顾了蛋白冠的研究进展,详细介绍了蛋白冠的形成机制、影响因素以及调控方法和现阶段表征技术,最后讨论了现阶段蛋白冠研究面临的挑战,并基于此提出展望,以期不断深化对蛋白冠的认识,推动纳米医学和生物技术的发展,拓展其应用范围。

关键词：纳米颗粒纳米-生物相互作用蛋白冠纳米无机-生物界面表征方法

A film of（PSS/PEI）_n as Semimanufactures towards Practical Applications

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A film of（PSS/PEI）_n as Semimanufactures towards Practical...

Spontaneous Orientation Polarization of Anisotropic Equivalent Dipoles Harnessed by Entropy Engineering for Ultra‑Thin Electromagnetic Wave Absorber

The Eleventh International and the First Sino-Japan Bilateral Symposium on Electroanalytical Chemistry

作者： Junfeng zhai yueming zhai Shaojun DONG~* State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Graduate School of the Chinese Academy of Sciences,Changchun 130022,Jilin,PR China

Functional thin solid films have attracted considerable attention for their potential applications in sensors,catalysis and solar cell,***（PEI）,coordinated with metal ions(***, PtCI and AuCI),have been investigated as building blocks for construction of thin solid fuctional films[1].Though the pre-coordination method facilitates the film formation procedure,

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Nano-Micro Letters 2025年第1期17卷 424-438页

作者： Honghan Wang Xinyu Xiao Shangru zhai Chuang Xue Guangping Zheng Deqing Zhang Renchao Che Junye Cheng Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials Liaoning Collaborative Innovation Center for Lignocellulosic BiorefinerySchool of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034People’s Republic of China School of Life Science and Biotechnology Dalian University of TechnologyDalian 116024People’s Republic of China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Department of Materials Science Shenzhen MSU-BIT UniversityShenzhen 517182People’s Republic of China

The synthesis of carbon supporter/nanoscale high-entropy alloys(HEAs)electromagnetic response composites by carbothermal shock method has been identified as an advanced strategy for the collaborative competition engineering of conductive/dielectric *** migration modes within HEAs as manipulated by the electronegativity,valence electron configurations and molar proportions of constituent elements determine the steady state and efficiency of equivalent ***,enlightened by skin-like effect,a reformative carbothermal shock method using carbonized cellulose paper(CCP)as carbon supporter is used to preserve the oxygencontaining functional groups(O·)of carbonized cellulose fibers(CCF).Nucleation of HEAs and construction of emblematic shell-core CCF/HEAs heterointerfaces are inextricably linked to carbon metabolism induced by O·.Meanwhile,the electron migration mode of switchable electronrich sites promotes the orientation polarization of anisotropic equivalent *** virtue of the reinforcement strategy,CCP/HEAs composite prepared by 35%molar ratio of Mn element(CCP/HEAs-Mn_(2.15))achieves efficient electromagnetic wave(EMW)absorption of−51.35 dB at an ultra-thin thickness of 1.03 *** mechanisms of the resulting dielectric properties of HEAs-based EMW absorbing materials are elucidated by combining theoretical calculations with experimental characterizations,which provide theoretical bases and feasible strategies for the simulation and practical application of electromagnetic functional devices(e.g.,ultra-wideband bandpass filter).

关键词： High-entropy alloys Carbothermal shock Switchable electron migration modes Emblematic shell-core heterointerfaces Ultra-thin thickness

Gradient‑Layered MXene/Hollow Lignin Nanospheres Architecture Design for Flexible and Stretchable Supercapacitors

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Nano-Micro Letters 2025年第2期17卷 447-462页

作者： Haonan Zhang Cheng Hao Tongtong Fu Dian Yu Jane Howe Kaiwen Chen Ning Yan Hao Ren Huamin zhai Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials NanJing Forestry UniversityNanjing 210037People’s Republic of China Department of Chemical Engineering and Applied Chemistry University of Toronto200 College StreetTorontoON M5S 3E5Canada Department of Materials Science and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China

With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has *** this work,a novel gradient-layered architecture was design based on single-pore hollow lignin nanospheres(HLNPs)-intercalated two-dimensional transition metal carbide(Ti_(3)C_(2)T_(x) MXene)for fabricating highly stretchable and durable *** depositing and inserting HLNPs in the MXene layers with a bottom-up decreasing gradient,a multilayered porous MXene structure with smooth ion channels was constructed by reducing the overstacking of MXene ***,the micro-chamber architecture of thin-walled lignin nanospheres effectively extended the contact area between lignin and MXene to improve ion and electron accessibility,thus better utilizing the pseudocapacitive property of *** these strategies effectively enhanced the capacitive performance of the *** addition,HLNPs,which acted as a protective phase for MXene layer,enhanced mechanical properties of the wrinkled stretchable electrodes by releasing stress through slip and deformation during the stretch-release cycling and greatly improved the structural integrity and capacitive stability of the *** electrodes and symmetric flexible all-solid-state supercapacitors capable of enduring 600%uniaxial tensile strain were developed with high specific capacitances of 1273 mF cm^(−2)(241 F g^(−1))and 514 mF cm^(−2)(95 F g^(−1)),***,their capacitances were well preserved after 1000 times of 600%stretch-release *** study showcased new possibilities of incorporating biobased lignin nanospheres in energy storage devices to fabricate stretchable devices leveraging synergies among various two-dimensional nanomaterials.

关键词： Hollow lignin nanospheres MXene Gradient-layered architecture Wrinkled electrodes Stretchable supercapacitors

Designing Electronic Structures of Multiscale Helical Converters for Tailored Ultrabroad Electromagnetic Absorption

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Nano-Micro Letters 2025年第1期17卷 439-455页

作者： Zhaobo Feng Chongbo Liu Xin Li Guangsheng Luo Naixin zhai Ruizhe Hu Jing Lin Jinbin Peng Yuhui Peng Renchao Che Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle School of Environmental and Chemical EngineeringNanchang Hangkong UniversityNanchang 330063People’s Republic of China School of Physics and Materials Nanchang UniversityNanchang 330031People’s Republic of China Key Laboratory of Nondestructive Testing Ministry of EducationNanchang Hangkong UniversityNanchang 330063People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering and TechnologyFudan UniversityShanghai 200438People’s Republic of China

Atomic-scale doping strategies and structure design play pivotal roles in tailoring the electronic structure and physicochemical property of electromagnetic wave absorption(EMWA)***,the relationship between configuration and electromagnetic(EM)loss mechanism has remained ***,drawing inspiration from the DNA transcription process,we report the successful synthesis of novel in situ Mn/N co-doped helical carbon nanotubes with ultrabroad EMWA *** calculation and EM simulation confirm that the orbital coupling and spin polarization of the Mn–N4–C configuration,along with cross polarization generated by the helical structure,endow the helical converters with enhanced EM *** a result,HMC-8 demonstrates outstanding EMWA performance,achieving a minimum reflection loss of−63.13 dB at an ultralow thickness of 1.29 *** precise tuning of the graphite domain size,HMC-7 achieves an effective absorption bandwidth(EAB)of 6.08 GHz at 2.02 mm ***,constructing macroscale gradient metamaterials enables an ultrabroadband EAB of 12.16 GHz at a thickness of only 5.00 mm,with the maximum radar cross section reduction value reaching 36.4 dB *** innovative approach not only advances the understanding of metal–nonmetal co-doping but also realizes broadband EMWA,thus contributing to the development of EMWA mechanisms and applications.

关键词： Metal-nonmetal co-doping 3d-2p orbital coupling Spin polarization Helical structure Broadband EM wave absorption