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Cellulose: Cellulose-based Flexible Functional materials for Emerging Intelligent Electronics (Adv. Mater. 28/2021)

Advanced materials 2021年第28期33卷

作者： Dawei Zhao Ying Zhu Wanke Cheng Wenshuai Chen Yiqiang Wu Haipeng Yu Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin 150040 P. R. China Institute of Industrial Chemistry and Energy Technology Shenyang University of Chemical Technology Shenyang 110142 P. R. China College of Materials Science and Technology Central South University of Forestry and Technology Changsha 410004 P. R. China

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Bridged Pt−OH−Mn Mediator in N-coordinated Mn Single Atoms and Pt Nanoparticles for Electrochemical biomolecule Oxidation and Discrimination

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Angewandte Chemie 2024年第31期136卷

作者： Xiaoqian Wei Yanjuan Lin Zhenwei Wu Yiwei Qiu Yinjun Tang Miharu Eguchi Toru Asahi Yusuke Yamauchi Chengzhou Zhu State Key Laboratory of Green Pesticide International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry Central China Normal University Wuhan 430079 P. R. China Faculty of Science and Engineering Waseda University 3-4-1 Okubo Shinjuku Tokyo 169-8555 Japan Department of Materials Process Engineering Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education Northeast Forestry University Harbin 150040 P. R. China Australian Institute for Bioengineering and Nanotechnology (AIBN) The University of Queensland Brisbane QLD 4072 Australia Department of Plant & Environmental New Resources College of Life Sciences Kyung Hee University 1732 Deogyeong-daero Giheung-gu Yongin-si Gyeonggi-do 17104 South Korea

The rational design of efficient catalysts for uric acid (UA) electrooxidation, as well as the establishment of structure-activity relationships, remains a critical bottleneck in the field of electrochemical sensing. To address these challenges, herein, a hybrid catalyst that integrates carbon-supported Pt nanoparticles and nitrogen-coordinated Mn single atoms (Pt NPs /MnNC) is developed. The metal-metal interaction during annealing affords the construction of metallic-bonded Pt−Mn pairs between Pt NPs and Mn single atoms, facilitating the electron transfer from Pt NPs to the support and thereby optimizing the electronic structure of catalysts. More importantly, experiments and theoretical calculations provide visual proof for the ‘incipient hydrous oxide adatom mediator’ mechanism for UA oxidation. The Pt−Mn pairs first adsorb OH* to construct the bridged Pt−OH−Mn mediators to serve as a highly active intermediate for N−H bond dissociation and proton transfer. Benefiting from the unique electronic and geometric structure of the catalytic center and reactive intermediates, Pt NPs /MnNC exhibits superior electrooxidation performance. The electrochemical sensor based on Pt NPs /MnNC enables sensitive detection and discrimination of UA and dopamine in serum samples. This work offers new insights into the construction of novel electrocatalysts for sensitive sensing platforms.

关键词： electrochemical sensors electrocatalysis uric acid single-atom catalysts nanoparticles

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Lichtinduzierte Polymerisation katalysiert durch Kohlenstoff-Nanomaterialien

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Angewandte Chemie 2023年第18期136卷

作者： Dr. Xiongfei Luo Yingxiang Zhai Dr. Ping Wang Prof. Dr. Bing Tian Prof. Dr. Shouxin Liu Prof. Dr. Jian Li Prof. Dr. Chenhui Yang Prof. Dr. Veronika Strehmel Prof. Dr. Shujun Li Prof. Dr. Krzysztof Matyjaszewski Dr. Gorkem Yilmaz Prof. Dr. Bernd Strehmel Prof. Dr. Zhijun Chen Key Laboratory of Bio-based Material Science & Technology Northeast Forestry University Ministry of Education Hexing Road 26 Harbin 150040 China Northeast Forestry University College of Chemistry Chemical Engineering and Resource Utilization Hexing Road 26 Harbin 150040 China Hochschule Niederrhein Fachbereich Chemie Institut für Lacke und Oberflächenchemie Adlerstr. 1 D-47798 Krefeld Bundesrepublik Deutschland Department of Chemistry Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA-15213 USA Department of Chemistry Faculty of Science and Letters Istanbul Technical University 34469 Maslak Istanbul Turkey

Kohlenstoffnanomaterialien insbesondere Kohlenstoffpunkte und Kohlenstoffnitride spielen als heterogene Photoinitiatoren sowohl in radikalischen als auch in kationischen Polymerisationsprozessen eine besondere Rolle. Diese kürzlich eingeführten materialien stellen herausragende Lösungen im Hinblick auf die Grenzen der gegenwärtigen homogenen Systeme dar und zeigen eine neue Herangehensweise für die Photopolymerisation. Dieser Übersichtsartikel stellt die Herstellung und die photokatalytische Leistungsfähigkeit dieser Nanomaterialien in den Mittelpunkt und hebt ihre Anwendung in verschiedenen Polymerisationstechniken einschließlich der photoinduzierten a) freien radikalischen, b) RAFT, c) ATRP und d) kationischen Polymerisation hervor. Außerdem diskutiert er deren Potential im Hinblick auf die gegenwärtigen Herausforderungen und erläutert Perspektiven auf diesem Gebiet. Darüber hinaus zeigen insbesondere Kohlenstoffnitride eine außergewöhnliche Sauerstofftoleranz, was für radikalische Polymerisationsprozesse von besonderer Bedeutung ist und Anwendungen wie beispielsweise den 3D Druck, Oberflächemodifizierungen von Überzügen und die technische Entwicklung von Hydrogelen erlaubt.

关键词： Kohlenstoffpunkte Kohlenstoffnitride radikalische Photopolymerisation RDRP kationische Photopolymerisation

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Achieving a Deeply Desodiated Stabilized Cathode material by the High Entropy Strategy for Sodium-ion Batteries

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Angewandte Chemie 2024年第29期136卷

作者： Zhaoguo Liu Rixin Liu Dr. Sheng Xu Jiaming Tian Jingchang Li Haoyu Li Tao Yu Dr. Shiyong Chu Dr. Anita M. D'Angelo Prof. Wei Kong Pang Prof. Liang Zhang Prof. Shaohua Guo Prof. Haoshen Zhou College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures and Frontiers Science Center for Critical Earth Material Cycling Nanjing University Nanjing 210023 P. R. China Lab of Power and Energy Storage Batteries Shenzhen Research Institute of Nanjing University Shenzhen 518057 P. R. China Australian Synchrotron Australian Nuclear Science and Technology Organization 800 Blackburn Road Clayton Victoria 3168 Australia Institute for Superconducting & Electronic Materials University of Wollongong Wollongong NSW Australia Institute of Functional Nano& Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Joint International Research Laboratory of Carbon-Based Functional Materials and Devices Soochow University 199 Ren'ai Road Suzhou 215123 P. R. China

Manganese-based layered oxides are currently of significant interest as cathode materials for sodium-ion batteries due to their low toxicity and high specific capacity. However, the practical applications are impeded by sluggish intrinsic Na + migration and poor structure stability as a result of Jahn–Teller distortion and complicated phase transition. In this study, a high-entropy strategy is proposed to enhance the high-voltage capacity and cycling stability. The designed P2-Na 0.67 Mn 0.6 Cu 0.08 Ni 0.09 Fe 0.18 Ti 0.05 O 2 achieves a deeply desodiation and delivers charging capacity of 158.1 mAh g −1 corresponding to 0.61 Na with a high initial Coulombic efficiency of 98.2 %. The charge compensation is attributed to the cationic and anionic redox reactions conjunctively. Moreover, the crystal structure is effectively stabilized, leading to a slight variation of lattice parameters. This research carries implications for the expedited development of low-cost, high-energy-density cathode materials for sodium-ion batteries.

关键词： high entropy desodiated stability lattice-oxygen redox activity layered cathodes sodium-ion batteries

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Sustainable Afterglow Room-Temperature Phosphorescence Emission materials Generated Using Natural Phenolics

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Angewandte Chemie 2022年第31期134卷

作者： Keliang Wan Yingxiang Zhai Shouxin Liu Jian Li Shujun Li Bernd Strehmel Zhijun Chen Tony D. James Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin 150040 P. R. China Department of Chemistry Institute for Coatings and Surface Chemistry Niederrhein University of Applied Sciences Adlerstr. 1 47798 Krefeld Germany Department of Chemistry University of Bath Bath BA2 7AY United Kingdom School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 P. R.China

Long-lived afterglow room-temperature phosphorescence (RTP) from natural phenolics has seldom been reported yet this is essential for the development of sustainable afterglow RTP materials. With this research, we have prepared sustainable afterglow RTP materials (GA@SA) with a lifetime of up to ≈934.7 ms by embedding gallic acid (GA) within a Ca 2+ -crosslinked sodium alginate (SA) matrix. Theoretical simulations indicate that the restricted carbonyl moieties of the GA and H-type aggregates of GA in a SA matrix promoted the spin orbit coupling (SOC) of GA and induced afterglow emission. Moreover, afterglow RTP emission could be produced by embedding different types of natural phenolics such as, tannic acid, caffeic acid and chlorogenic acid into Ca 2+ -crosslinked networks of SA. As an illustration of potential applications, GA@SA was used to prepare anti-counterfeit afterglow clothing and paper. This work provides an innovative method for the activation of long-lived afterglow RTP from sustainable phenolics.

关键词： Afterglow Emission Long Lifetime Natural Phenolics Sodium Alginate Sustainability

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Prediction of lute acoustic quality based on soundboard vibration performance using multiple choice model

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Journal of Forestry Research 2017年第4期28卷 855-861页

作者： Yang Yang Zhenbo Liu Yixing Liu Key Laboratory of Bio-based Material Science and Technology of National Ministry of Education Northeast Forestry UniversityHarbinHeilongjiangPeople’s Republic of China

The vibrational performance of wood materials critical affects the acoustic quality of a lute. The purpose of this research was to apply a multiple choice model to predict the quality of musical instruments based on data on lute soundboard vibrational properties of Paulownia wood. In the lute production, lute material selection mainly depends on the subjective evaluation of technicians, which is not only inefficient, but inaccurate. In this study, nine lutes were fabricated. Using the multiple selection model, the lute tone quality was predicted by the soundboard wood vibration data. Compared with the actual value, the dependent value predicted by the count of observations with the maximum probability had 22 erroneous judgments. The model precision is 87.78%. The results confirmed that the prediction model can be used as a guideline for the selection of the soundboard wood in musical instrument plants.

关键词： Multiple choice model Musical instrument quality Normal distribution Vibration performance

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Collaborative R＆D between multicrystalline silicon ingots and battery efficiency improvement--effect of shadow area in multicrystalline silicon ingots on cell efficiency

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Journal of Semiconductors 2018年第8期39卷 32-35页

作者： Xiang Zhang Chunlai Huang Lei Wang Min Zhou China University of Mining and Technology Xuzhou 221116 China Jiangsu Key Lab of Silicon Based Electronic Materials Jiangsu GCL Silicon Material Technology Development Co. Ltd.Xuzhou 221001 China State Key Lab of Silicon Materials and Department of Materials Science &Engineering Zhejiang University Hangzhou310058 China

We characterized strip-like shadows in cast multicrystalline silicon(mc-Si) ingots. Blocks and wafers were analyzed using scanning infrared microscopy, photoluminescence spectroscopy, laser scanning confocal microscopy, field-emission scanning electron microscopy, X-ray energy-dispersive spectrometry, and microwave photoconductivity decay technique. The effect on solar cell performance is discussed. The results show that the non-microcrystalline shadow region in Si ingots consists of precipitates of Fe, O, and C. The size of these Fe–O–C precipitates found at the shadow region is25 μm. Fe–O–C impurities can slightly reduce the minority carrier lifetime of the wafers while severely decrease in shunt resistance, leading to the increase in reverse current of the solar cells and degradation in cell efficiency.

关键词： silicon shadow iron–oxygen–carbon precipitates minority carrier lifetime cell efficiency

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The Effect of Pretreatment Method on the Decorative Effect of the Wax Furniture 3

The Effect of Pretreatment Method on the Decorative Effect o...

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2018 3rd International Conference on Insulating materials, material Application and Electrical Engineering, IMMAEE 2018

作者： Dao, Thanh Giang Nguyen, Tat Thang Song, Xiaoxue Wang, Xuting Song, Kuian Key Laboratory of Bio-based Material Science and Technology Ministry of Education Northeast Forestry University Harbin150040 China Northeastern College of Agriculture and Forestry Quang Ninh Viet Nam Vietnam National University of Forestry Ha Noi Viet Nam

In this study, the authors used hot wax selected from beeswax and insect wax. These two types of wax are blended with a 1: 1 ratio. Then use three methods of surface treatment before wax coating on the Ash wood surface including hydrothermal method, compound lye method, and plasma method. Through comparative analysis of 4 properties: color, adhesion, hardness and surface properties of the hydrophobic coating. The results show that the hot wax coating on the ash surface can maintain the original color of the wood. Comparison of three methods of wood treatment shows that: plasma method for the coating surface has the best adhesion, hydrothermal method for best surface hardness of the coating, and the hydrophobicity of hot wax after hydrothermal pretreatment is the best. © Published under licence by IOP Publishing Ltd.

关键词： Adhesion

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Study material ratio green bean powder and polylactic acid powder for the 3D printing technology selective laser sintering 3

Study material ratio green bean powder and polylactic acid p...

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2018 3rd International Conference on Insulating materials, material Application and Electrical Engineering, IMMAEE 2018

作者： Dinh, Ba Bach Guo, Yanling Nguyen, Tat Thang Zhang, Hui Yu, Yueqiang College of Mechanical and Electrical Engineering Northeast Forestry University Harbin150040 China Vietnam National University of Forestry Hanoi156200 Viet Nam Key Laboratory of Bio-based Material Science and Technology Ministry of Education Northeast Forestry University Harbin150040 China

The world's population is increasing, so the demand for material also increases. Currently scientists are therefore searching for new materials that have a stable supply of large quantities. The combination of green bean powder with polylactic acid powder has a composition ratio (10/90;20/80;70/30 and 40/60 (wt/wt)) used as input material for 3d printing technology SLS. High-power laser experiments were performed on a mixture of green bean powder and polylactic acid powder (GBCP), which produced a new synthetic material both biodegradable. Then, the GBCP composite material was tested for mechanical properties in each type of mixing ratio, observing the cross section of the material structure. Results obtained at 20/80 (wt/wt) mixing ratio of GBCP composite have a tensile strength of 2.5705 MPa, bending strength of 5 MPa and impact strength of 0.501kJ/m2. © Published under licence by IOP Publishing Ltd.

关键词： Sintering

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Flexible, ultrathin bioelectronic materials and devices for chronically stable neural interfaces

Brain‐X

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Brain‐X 2023年第4期1卷

作者： Lianjie Zhou Zhongyuan Wu Mubai Sun Jaejin Park Mengdi Han Ming Wang Junsheng Yu Zengfeng Di Yongfeng Mei Wubin Bai Xinge Yu Ki Jun Yu Enming Song Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception Institute of Optoelectronics Fudan University Shanghai China Contribution: Investigation Visualization Writing - original draft Institute of Agro-food Technology Jilin Academy of Agricultural Sciences Changchun Jilin China Contribution: Data curation Investigation Functional Bio-integrated Electronics and Energy Management Lab School of Electrical and Electronic Engineering Yonsei University Seoul Korea Department of Biomedical Engineering College of Future Technology Peking University Beijing China Contribution: Resources Validation State Key Laboratory of Integrated Chips and Systems Frontier Institute of Chip and System Fudan University Shanghai China State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China (UESTC) Chengdu Sichuan China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai China Department of Material Science Fudan University Shanghai China Department of Applied Physical Sciences University of North Carolina at Chapel Hill Chapel Hill North Carolina USA Department of Biomedical Engineering City University of Hong Kong Hong Kong SAR China Wubin Bai Xinge Yu Ki Jun Yu and Enming Song. Contribution: Conceptualization Methodology Resources Supervision Writing - review & editing

Advanced technologies that can establish intimate, long-lived functional interfaces with neural systems have attracted increasing interest due to their wide-ranging applications in neuroscience, bioelectronic medicine, and the associated treatment of neurodegenerative diseases. A critical challenge of significance remains in the development of electronic platforms that offer conformal contact with soft brain tissue for the sensing or stimulation of brain activities and chronically stable operation in vivo, at scales that range from cellular-level resolution to macroscopic areas. This review summarizes recent advances in this field, with an emphasis on the use of demonstrated concepts, constituent materials, engineered designs, and system integration to address the current challenges. The article begins with an overview of recent bioelectronic platforms with unique form factors, ranging from filamentary probes to conformal sheets and three-dimensional frameworks for alleviating the mechanical mismatch between interface materials and neural tissues. Next, active interfaces which utilize inorganic/organic semiconductor-enabled devices are reviewed, highlighting various working principles of recording mechanisms including capacitively and conductively coupled sensing enabled by high transistor matrices at high spatiotemporal resolution. The subsequent section presents approaches to biological integration which use active materials for multiplexed addressing, local amplification and multimodal operation with high-channel-count and large-scale electronic systems in a safe fashion that provides multi-decade stable performance in both animal models and human subjects. The advances summarized in this review will guide the future direction of this technology and provide a basis for next-generation chronic neural interfaces with long-lived high-performance operation.

关键词： neural interface flexibility passive electrodes active recording barrier materials chronic stability

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