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Nano Research 2023年第8期16卷 10985-10991页

作者： Hongqiang Xu Boshi Cheng Quan Du Yuting Zhang Haojie Duan Ishioma L.Egun Bo Yin haiyong he Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201China University of Chinese Academy of Sciences Beijing 101400China

Synergistic effects between hard carbons and soft carbons are proven to be helpful for improving the electrochemical performance of carbonaceous anode for potassium-ion batteries(PIBs).However,the phase separation of precursors limits the synergistic effects and improvement of electrochemical ***,inspired by the esterification reaction,the precursors of two sorts of carbon are connected at the molecular level,which boosts the synergistic effects in hybrid carbon,resulting in excellent electrochemical kinetics and low charge/discharge ***,the hybrid carbon anode exhibited a high specific capacity of 121 mAh·g^(−1)at 3.2 A·g^(−1),a high-rate capability,and stable cycling *** 500 cycles at 1 A·g^(−1),the average capacity fading is only 0.078%per cycle.

关键词： potassium ion batteries anode carbon chemical bond

Li^(+)Solvation Mediated Interfacial Kinetic of Alloying Matrix for Stable Li Anodes

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Energy & Environmental Materials 2023年第2期6卷 70-80页

作者： Xingyi Wang Kailin Luo Lixin Xiong Tengpeng Xiong Zhendong Li Jie Sun haiyong he Chuying Ouyang Zhe Peng Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201China Department of Physics Laboratory of Computational Materials PhysicsJiangxi Normal UniversityNanchang 330022China 21C Innovation Laboratory Contemporary Amperex Technology Ltd.(CATL)Ningde 352100China

Severe lithium(Li)dendrite growth caused by the uneven overpotential deposition is a formidable challenge for high energy density Li metal batteries(LMBs).herein,we investigate a synergetic interfacial kinetic to regulate Li deposition behavior and stabilize Li metal *** constructing Li alloying matrix with a bi-functional silver(Ag)-Li_(3)N blended interface,fast Li^(+)conductivity and high Li affinity can be achieved simultaneously,resulting in both decreased Li nucleation and mass transfercontrolled *** these properties,a more important feature is demonstrated herein;that is,the inward diffusion depth of the Li adatoms inside of the Ag site can be restricted by the Li^(+)solvation structure in a highly coordinating *** latter feature can ensure the durability of the operational Ag sites,thereby elongating the Li protection ability of the Ag-Li_(3)N interface *** work provides a deep insight into the synergetic effect of functional alloying structure and Li^(+)solvation mediated interfacial kinetic on Li metal protection.

关键词： Li^(+)solvation structure Li-Ag alloy lithium metal anode lithium metal batteries SEI

Advanced Strategies for Stabilizing Single‑Atom Catalysts for Energy Storage and Conversion

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Electrochemical Energy Reviews 2022年第3期5卷 1-41页

作者： Wenxian Li Zehao Guo Jack Yang Ying Li Xueliang Sun haiyong he Sean Li Jiujun Zhang Institute of Materials Shanghai UniversityShanghai 200072China UNSW Materials and Manufacturing Futures Institute School of Materials Science and EngineeringThe University of New South WalesSydneyNSW 2052Australia College of Sciences Institute for Sustainable EnergyShanghai UniversityShanghai 200444China Department of Mechanical and Materials Engineering University of Western OntarioLondonON N6A 5B9Canada Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201ZhejiangChina

Well-defined atomically dispersed metal catalysts(or single-atom catalysts)have been widely studied to fundamentally under-stand their catalytic mechanisms,improve the catalytic efficiency,increase the abundance of active components,enhance the catalyst utilization,and develop cost-effective catalysts to effectively reduce the usage of noble *** single-atom cata-lysts have relatively higher selectivity and catalytic activity with maximum atom utilization due to their unique characteristics of high metal dispersion and a low-coordination ***,freestanding single atoms are thermodynamically unstable,such that during synthesis and catalytic reactions,they inevitably tend to agglomerate to reduce the system energy associated with their large surface ***,developing innovative strategies to stabilize single-atom catalysts,including mass-separated soft landing,one-pot pyrolysis,co-precipitation,impregnation,atomic layer deposition,and organometallic complexation,is critically *** types of supporting materials,including polymers,have been commonly used to stabilize single atoms in these fabrication ***,we review the stabilization strategies of single-atom catalyst,including different synthesis methods,specific metals and carriers,specific catalytic reactions,and their advantages and *** particular,this review focuses on the application of polymers in the synthesis and stabilization of single-atom catalysts,including their functions as carriers for metal single atoms,synthetic templates,encapsulation agents,and protection agents during the fabrication *** technical challenges that are currently faced by single-atom catalysts are summarized,and perspectives related to future research directions including catalytic mechanisms,enhancement of the catalyst loading content,and large-scale implementation are proposed to realize their practical applications.

关键词： Single-atom catalyst Stabilization strategy Coordination environment Polymer Encapsulation agent Protection agent

植物源杀菌剂大黄素甲醚对烟草病毒病的防治效果研究

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现代农业科技 2024年第13期 60-63页

作者：潘首慧薛原何海永龚双军李继业谭清群贵州省烟草公司安顺市烟草公司贵州安顺561000 贵州省植物保护研究所贵州贵阳550006 湖北省农业科学院植保土肥研究所湖北武汉430064

新型植物源杀菌剂大黄素甲醚是从中药植物大黄中提取的天然蒽醌类化合物,具有毒性低、降解快、残留低等特点,是化学杀菌剂的理想替代产品,适用于绿色生产。为了明确大黄素甲醚对烟草病毒病的防治效果、最佳施药时期及施用量,本研究以0.1... 详细信息

新型植物源杀菌剂大黄素甲醚是从中药植物大黄中提取的天然蒽醌类化合物,具有毒性低、降解快、残留低等特点,是化学杀菌剂的理想替代产品,适用于绿色生产。为了明确大黄素甲醚对烟草病毒病的防治效果、最佳施药时期及施用量,本研究以0.1%大黄素甲醚水剂为试验药剂,以8%宁南霉素水剂和5%盐酸吗啉胍可溶粉剂为对照药剂,开展了田间小区试验。结果表明,烟草移栽定植期施用0.1%大黄素甲醚水剂对烟草病毒病的防治效果较团棵期施用好,当用药量为1 500 mL/hm^(2)时药后10 d的防治效果可达到62.81%。

关键词：植物源杀菌剂大黄素甲醚烟草病毒病防治效果

Effect of heating rate on the electrochemical performance of MnO_X@CNF nanocomposites as supercapacitor electrodes

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Chinese Science Bulletin 2014年第16期59卷 1832-1837页

作者： Lin Shi haiyong he Yan Fang Yuying Jia Bin Luo Linjie Zhi National Center for Nanoscience and Technology

Carbon nanofibers(CNFs)and MnOX@CNF nanocomposites(MCNFs)are fabricated by electrospinning and investigated as free-standing electrodes for *** work presents the effect of heating rate during carbonization on the electrochemical behavior of the as-prepared MCNFs electrodes in 6 mol/L KOH *** show that the MCNFs electrodes carbonized by relatively slower heating rate exhibit higher specific *** electronic conductivity of the slow heated MCNFs electrodes is better than that of the fast heated electrodes due to the better crystallinity of the MnOXnanoparticles and the graphitic carbon layers forming on the surface of the Mn-loaded *** MCNFs electrodes demonstrate elevated rate capability and improved cycling performance without adding any polymer binder or electronic conductor.

关键词：升温速率复合材料氧化锰 CNF 电化学性能超级电容器电极碳纳米纤维

Compound soft regenerated skull material for repairing dog skull defects using bone morphogenetic protein as an inductor and nanohydroxyapatite as a scaffold

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Neural Regeneration Research 2008年第8期3卷 843-846页

作者： Zhidong Shi Mingwang Liu Zhongzong Qin Qinmei Wang Ying Guo haiyong he Zhonghe Yu Department of Neurosurgery Third Affiliated Hospital Sun Yat-sen University Guangzhou 510630 Guangdong Province China Laboratory of Artificial heart First Affiliated Hospital Sun Yat-sen University Guangzhou 510630 Guangdong Province China Animal Room Third Affiliated Hospital Sun Yat-sen University Guangzhou 510630 Guangdong Province China

BACKGROUND：In previous studies of skull defects and regeneration, bone morphogenetic protein as an inductor and nanohydroxyapatite as a scaffold have been cocultured with osteoblasts. OBJECTIVE： To verify the characteristics of the new skull regenerated material after compound soft regenerated skull material implantation. DESIGN, TIME AND SETTING： The self-control and inter-group control animal experiment was performed at the Sun Yat-sen University, China from February to July 2007. MATERIALS： Twenty-four healthy adult dogs of both genders weighing 15–20 kg were used in this study. Nanohydroxyapatite as a scaffold was cocultured with osteoblasts. Using demineralized canine bone matrix as a carrier, recombinant human bone morphogenetic protein-2 was employed to prepare compound soft regenerated skull material. Self-designed compound soft regenerated skull material was implanted in models of skull defects. METHODS： Animals were randomly assigned into two groups, Group A （n = 16） and Group B （n = 8）. Bilateral 2.5-cm-diameter full-thickness parietal skull defects were made in all animals. In Group A, the right side was reconstructed with calcium alginate gel, osteoblasts, and nanometer bone meal composite; the left side was reconstructed with calcium alginate gel, osteoblasts, nanometer bone meal and recombinant human bone morphogenetic protein-2 composite. In Group B, the right side was kept as a simple skull defect, and the left side was reconstructed with calcium alginate gel, osteoblasts, nanometer bone meal and recombinant human bone morphogenetic protein-2 composite. MAIN OUTCOME MEASURES： Bone regeneration and histopathological changes at the site of the skull defect were observed with an optical microscope and a scanning electron microscope after surgery. The ability to form bone was measured by alizarin red S staining. In vitro cultured osteoblasts were observed for morphology. RESULTS： One month following surgery, newly formed bone trabeculae mostly covered t

关键词： tissue engineering skull regeneration animal experiment

Evaluation of Well Spacing for Primary Development of Fractured Horizontal Wells in Tight Sandstone Gas Reservoirs

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Fluid Dynamics & Materials Processing 2024年第5期20卷 1015-1030页

作者： Fang Li Juan Wu haiyong Yi Lihong Wu Lingyun Du Yuan Zeng Exploration and Development Research Institute PetroChina Southwest Oil&Gas Field CompanyChengdu610041China Oil and Gas Resources Department PetroChina Southwest Oil&Gas Field CompanyChengdu610000China

Methods for horizontal well spacing calculation in tight gas reservoirs are still adversely affected by the complexity of related control factors,such as strong reservoir heterogeneity and seepage *** this study,the stress sensitivity and threshold pressure gradient of various types of reservoirs are quantitatively evaluated through reservoir seepage *** the basis of these experiments,a numerical simulation model(based on the special seepage mechanism)and an inverse dynamic reserve algorithm(with different equivalent drainage areas)were *** well spacing ranges of Classes I,II,and III wells in the Q gas field are determined to be 802–1,000,600–662,and 285–400 m,respectively,with their average ranges as 901,631,and 342.5 m,*** considering both the pairs of parallel well groups and series well groups as examples,the reliability of the calculation results is *** is shown that the combination of the two models can reduce errors and provide accurate results.

关键词： Well spacing for primary development tight gas reservoir fractured horizontal well threshold pressure gradient stress sensitivity

A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake

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Nano Research 2018年第12期11卷 6325-6335页

作者： R.Govindan Kutty Sivaramapanicker Sreejith Xianghua Kong haiyong he Hong Wang Junhao Lin Kazu Suenaga Chwee Teck Lim Yanli Zhao Wei Ji Zheng Liu Center for Programmable Materials School of Materials Sdence and EngineeringNanyang Technological UniversitySO Nanyang Avenue639798Singapore School of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798Singapore Center for Advanced 2D Materials and Graphene Research Center National University of Singapore6Science Drive 2Singapore117546Singapore Biomedical Institute for Global health Research and Technology National University of Singapore14Medical DriveSingapore 117599Singapore Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices Renmin University of ChinaBeijing 100872China National Institute of Advanced Industrial Science and Technology (AIST) AIST Central 5Tsukuba305-8565-Japan Division of Chemistry and Biological Chemistry School of Physical and Mathematical SciencesNanyang Technological University21-Nanyang LinkSingapore 637371Singapore Department of Biomedical Engineering National University of SingaporeSingapore 117543Singapore

A topologically mediated synthesis of porous boron nitride aerogel has been experimentally and theoretically investigated for carbon dioxide (CO2) uptake. Replacement of the carbon atoms in a precursor aerogel of graphene oxide and carbon nanotubes was achieved using an elemental substitution reaction, to obtain a boron and nitrogen framework. The newly prepared BN aerogel possessed a specific surface area of 716.56 m2/g and exhibited an unprecedented twentyfold increase in CO2 uptake over N2, adsorbing 100 cc/g at 273 K and 80 cc/g in ambient conditions, as verified by adsorption isotherms via the multipoint Brunauer-Emmett-Teller (BET) method. Density functional theory calculations were performed to give hints on the mechanism of such high selectivity of CO2 over N2 adsorption in BN aerogel, which may be due to the interaction between the intrinsic polar nature of B–N bonds and the high quadrupole moment of CO2 over N2.

关键词： boron nitride boron nitride nanotube aerogel quadrupole moment selective CO 2 adsorption

A review on the chemo-catalytic conversion of cellulose to bio-ethanol

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Green Chemical Engineering 2024年第03期5卷 276-289页

作者： Xiuzheng Zhuang haiyong Wang Shugen Jiang Xiaohong Hu Tong Su Xinghua Zhang Longlong Ma Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and Environment Southeast University Key Laboratory of Renewable Energy Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Wuzhou Refrigeration Group Co.Ltd.

While the industry has produced sugar-derived ethanol from the conventional method of fermentation for hundreds of years, other effective routes involving the direct transformation of carbohydrates still remain extremely rare. Very recently, an innovative chemo-catalytic method driven by the aqueous-phase catalysis was created for the synthesis of cellulosic ethanol, making a great breakthrough in the common ways as it can theoretically utilize all of the carbon atoms in sugars with faster kinetics; up to now, results from the relevant studies have been accumulated to a certain extent, but the periodic conclusions in this field are unfortunately absent. For this reason,this work tries to offer an overview of the cellulosic ethanol produced by chemo-catalytic routes, highlighting the present knowledge in relation to the technical efficiency, catalytic mechanisms as well as practical applications. At first, the advanced progress on the increasing efficiency from a varied type of catalytic systems are extensively discussed, which involves the specific functions of hybrid components from different strategies; meanwhile, the general influences of processing conditions, such as the hydrothermal severity and aqueous environments, are also identified. Subsequently, possible mechanisms behind the chemo-catalytic processes are widely elaborated by analyzing a number of experimental cases associated with the reaction network and its kinetic models. After that,the actual effects of this technique on the real biomass are collected to identify the positive/negative interactions between multiple components, together with the potential solutions on the semi-continuous processes of pilot scale application. The techno-economic analysis(TEA) is also calculated and compared with other similar methods, such as fermentation and gasification. Finally, several proposals aimed at upgrading the whole chain of chemo-catalytic processes are clearly provided, which may function as a guideline f

关键词： Cellulosic ethanol Chemo-catalytic method Influencing factors Catalytic mechanism Techno-economic analysis

A Preliminary Investigation on Phenotypic Characteristics of Phytophthora infestans from Guizhou Province

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Agricultural Biotechnology 2016年第3期5卷 29-32页

作者： Lu HUANG Xiaojun CheN haiyong he Xuehui LIU Shiping WU Institute of Plant Protection Guizhou Academy of Agricultural SciencesGuiyang 550006China

Abstract [ Objective ] This study aimed to investigate the phenotypic characteristics of Phytophthora infestans from Guizhou Province. The metalaxyl resistance, mating type and isozyme genotype of 292 P. infestans strains isolated from Guizhou Province were analyzed. [ Result] Metalaxyl-resistant P. infestans strains were found in different areas of Guizhou Province. Resistant, moderately resistant and susceptible strains accounted for 35.62% , 33.90% and 30.48% , re- spectively. Both mating types A1 and A2 were found, which accounted for 65.38% and 34.62%, respectively. P. infestans strains isolated from Guizhou Province mainly belonged to Gpi genotypes 100/100 and 100/100/111, accounting for 50.68% and 43.84%, respectively. [ Conclusion] This study provides the theoretical basis for the prevention and control of potato late blight in Guizhou Province.

关键词： Phytophthora infestans Mating type Metalaxyl Gpi