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Heterointerface engineering of assembled CoP_(2) on N-modified carbon as efficient trifunctional electrocatalysts for Zn-Air batteries and overall water splitting

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Nano Research 2024年第5期17卷 3801-3809页

作者： Yan Chen Zhenrui Yang Juan wang Yun Yang Xuedong He Yang wang jiadong Chen Yaqing Guo Xin wang Shun wang Huile Jin Wenzhou Key Lab of Advanced Energy Storage and Conversion Zhejiang Province Key Lab of Leather EngineeringCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China Zhejiang Engineering Research Center for Electrochemical Energy Materials and Devices Institute of New Materials and Industrial TechnologiesWenzhou UniversityWenzhou 325035China School of Chemical and Biomedical Engineering Nanyang Technological UniversitySingapore 637459Singapore

Enhancing catalytic activity through modulating the interaction between N-doped carbon and metal phosphides clusters is an effective ***,the electronic structure modulation of CoP_(2) supported N-modified carbon(CoP_(2)/NC)has been designed and prepared as efficient electrocatalysts for oxygen reduction reaction(ORR),oxygen evolution reaction(OER),and hydrogen evolution reaction(HER).Notably,CoP_(2)/NC-1 catalyst exhibits impressive performance in alkaline media,with an ORR half-wave potential of 0.84 V,as well as OER and HER overpotentials of 290 and 129 mV(at 10 mA·cm^(−2)),*** addition,CoP_(2)/NC-1 produces a power density as high as 172.9 mW·cm^(−2),and excellent reversibility of 100 h at 20 mA·cm^(−2) in home-made Zn-air *** experimental results demonstrate that the synergistic interactions between N modified carbon substrate and CoP_(2) material significantly enhance the kinetics of ORR,OER,and *** functional theory(DFT)calculations reveal the strong electrons redistribution of CoP_(2) induced by high-density N atoms at the interface,thus optimizing the key intermediates and significantly lower the energy barrier of *** electronic adjustments of CoP_(2) greatly enhance its kinetics of ORR/OER/HER,leading to faster *** study provides profound insights into the specific modification of CoP_(2) by N-doped carbon,enabling the construction of efficient catalysts.

关键词： two-dimensional(2D)carbon metal-organic framework cobalt phosphide zinc air battery water splitting

Rapid characterization of non-volatile phenolic compounds reveals the reliable chemical markers for authentication of traditional Chinese medicine Xiang-ru among confusing Elsholtzia species

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Chinese Journal of Natural Medicines 2024年第4期22卷 375-384页

作者： ZENG Zhen ZHANG Chen HU jiadong wang Feiyan WU Ziding wang Jing ZHANG Jun YANG Shuda CHEN Junfeng LI Mingming TONG Qi QIU Shi CHEN Wansheng The SATCM Key Laboratory for New Resources&Quality Evaluation of Chinese Medicine Institute of Chinese Materia MedicaShanghai University of Traditional Chinese MedicineShanghai 201203China Department of Pharmacy Second Affiliated Hospital of Navy Medical UniversityShanghai 200003China Kunming Plant Classification Biotechnology Co. Ltd.Kunming 650500China School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products Kunming Medical UniversityKunming 650500China State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Beijing100700China

The aerial parts of Mosla chinensis *** Mosla chinensis cv.'Jiangxiangru'(MCJ)are widely utilized in traditional Chinese medicine(TCM),known collectively as ***,due to clinical effectiveness concerns and frequent misidentification,the original plants have increasingly been substituted by various species within the genera Elsholtzia and *** challenge in distinguishing between these genera arises from their similar morphological and metabolic *** address this issue,our study introduced a rapid method for metabolic characterization,employing high-resolution mass spectrometry-based *** detailed biosynthetic and chemometric analyses,we pinpointed five phenolic compounds—salviaflaside,cynaroside,scutellarein-7-O-D-glucoside,rutin,and vicenin-2—among 203 identified compounds,as reliable chemical markers for distinguishing Xiang-ru from closely related Elsholtzia *** methodology holds promise for broad application in the analysis of plant aerial parts,especially in verifying the authenticity of aromatic traditional medicinal *** findings underscore the importance of non-volatile compounds as dependable chemical markers in the authentication process of aromatic traditional medicinal plants.

关键词： Genus Elsholtzia Genus Mosla Traditional Chinese medicine Xiang-ru Non-volatile phenolic compounds Liquid chromatography-mass spectrometry

Discovery and Characterization of a Novel Method for Effective Improvement of Cyclodextrin Yield and Product Specificity

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Chemical Research in Chinese Universities 2019年第4期35卷 708-713页

作者： HUA Jinghan ZHANG Hongbin WU Hao wang jiadong HU Xueqin YANG Jingwen Department of Pharmaceutical Science and Engineering School of Food and Biological Engineering Hefei University of Technology Hefei 230009 P. R. China

Cyclodextrins(CDs) are widely used in food,phamiaceuticals, drug delivery, and chemical industries and in agriculture and environmental engineering. To improve the yield and selectivity of CDs, this work presented a tacile, scalable and efficient enzymatic synthesis of β-CD from starch using β-cyclodextrin glycosyltransferase (CGTase, EC2.***.1.19) from Bacillus cereus. First, we found that the pretreatment of starch dramatically influenced CDs yield that was related to the structure and molecular weight of the substrate starch. Second, alcohol solvents influenced the yield and product selectivity of CDs;tertiary alcohols enhanced CDs yield(from 54.95% to 68.21%) and secondary alcohols increased the product selectivity(β-CD/γ-CD changed from 6.25 to 8.05). Fluorescence quenching analysis showed that the binding constants and entropy of the solvents influenced the yield and product selectivity, respectively. In conclusion, the results demonstrate that this study provides a promising method for the industrial production of β-CD.

关键词： β-Cyclodextrin glycosyltransferase Alcohol solvent Bacillus cereus Cyclodextrin

三角B-B曲面最小二乘渐进迭代格式的革新与加速

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计算机辅助设计与图形学学报 2022年第5期34卷 777-783页

作者：胡倩倩王家栋王国瑾浙江工商大学统计与数学学院杭州310018 浙江大学数学科学学院杭州310027

传统渐近迭代逼近方法是一种简单、直观和有效的数据拟合方法,但存在难以处理海量数据的缺陷.最小二乘渐近迭代逼近(least square progressive iterative approximation,LSPIA)方法的出现弥补了其数据量受限的不足,使之能适用于大量数... 详细信息

传统渐近迭代逼近方法是一种简单、直观和有效的数据拟合方法,但存在难以处理海量数据的缺陷.最小二乘渐近迭代逼近(least square progressive iterative approximation,LSPIA)方法的出现弥补了其数据量受限的不足,使之能适用于大量数据拟合的需求.为了提高LSPIA方法的收敛速度,结合Moore-Penrose广义逆的Schulz迭代方法,给出了三角B-B曲面的加速LSPIA迭代格式,并证明了2,3,4次三角B-B逼近曲面的LSPIA生成以2次的收敛速度收敛到最小二乘逼近结果.此外,还提供了拥有最快收敛速度的权重公式,并用实例验证了该加速LSPIA方法的正确性和高效性.

关键词：渐进迭代逼近三角B-B曲面最小二乘拟合 Moore-Penrose广义逆 Schulz迭代方法收敛速度

Inhibition of the toxic byproduct during photocatalytic NO oxidation via La doping in ZnO

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Chinese Chemical Letters 2020年第3期31卷 751-754页

作者： Chaowei Yuan Wen Cui Yanjuan Sun jiadong wang Ruimin Chen Jin Zhang Yuxin Zhang Fan Dong Chongqing Key Laboratory of Catalysis and New Environmental Materials College of Environment and ResourcesChongqing Technology and Business UniversityChongqing 400067China Research Center for Environmental Science&Technology Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu 611731China The Center of New Energy Materials and Technology School of Materials Science and EngineeringSouthwest Petroleum UniversityChengdu 610500China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China

It is of a great challenge to develop semiconductor photocatalysts with potential possibilities to simultaneously enhance photocatalytic efficiency and inhibit generation of toxic *** this study,we developed a facile method to induce the La doping and cationic vacancie(V(Zn))on ZnO for the highly efficient complete NO *** photocatalytic NO removal efficiency increases from 36.2%to 53,6%.Most importantly,a significant suppressed NO2 production also has been *** to the DFT calculations,ESR spectra and in situ FTIR spectra,the introduction of La^3+induce the redistribution of charge carriers in La-ZnO,which promote the production of·O2^- and lead to the formation of V(Zn)for the formation of·OH,contributing to the complete oxidation of NO to ***,the conversion pathway of photocatalytic NO oxidation has been elaborated,This work paves a new way to simultaneously realize the photocatalytic pollutants removal and the inhibition of toxic intermediates generation for efficient and safe air purification.

关键词： Photocatalytic NO oxidation Toxic byproduct Reactive oxygen species ZnO Cationic vacancie

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弹载雷达成像技术发展现状与趋势

雷达学报（中英文） 2022年第6期11卷 943-973页

作者：李亚超王家东张廷豪宋炫西安电子科技大学雷达信号处理国家重点实验室西安710071 西安电子科技大学前沿交叉研究院西安710071

弹载合成孔径雷达(SAR)可对观测区域进行二维高分辨率成像,获得丰富的地貌特征以及目标的尺寸、形状特征,进而选择打击点并提高打击精度和效率。与传统的机载/星载SAR成像体制相比,弹载SAR由于其探测距离远、大机动曲线突防和多平台协... 详细信息

弹载合成孔径雷达(SAR)可对观测区域进行二维高分辨率成像,获得丰富的地貌特征以及目标的尺寸、形状特征,进而选择打击点并提高打击精度和效率。与传统的机载/星载SAR成像体制相比,弹载SAR由于其探测距离远、大机动曲线突防和多平台协同作战的特点,给雷达成像技术带来了新的挑战:导弹末制导阶段处于二维甚至三维加速的大斜视工作模式,飞行轨迹与传统的SAR成像模式不同,这会带来距离方位的严重耦合,成像质量退化严重;在攻击飞行段,导弹的天线波束直接指向目标区域,弹载SAR将工作在前视状态,传统的SAR成像技术难以获取目标二维高分辨图像。针对弹载SAR存在的这些问题,该文立足弹载SAR作战需求,从曲线轨大斜视成像、前视成像和协同成像方面介绍了弹载雷达成像的关键技术和发展现状,展望未来弹载雷达成像技术的发展趋势。

关键词：弹载雷达成像曲线轨大斜视前视成像协同成像发展趋势

考虑平均应变的低周疲劳寿命本征损伤耗散预测方法

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工程设计学报 2023年第2期30卷 136-143页

作者：王嘉栋胡明严伟李浩然浙江理工大学机械工程学院浙江杭州310018 浙江正远智能装备科技有限公司浙江湖州313000

金属构件疲劳破坏是工业中常见的破坏形式。为了提高构件疲劳寿命的预测精度,针对低周疲劳载荷下平均应变对疲劳寿命的影响,基于连续介质损伤力学及其不可逆热力学框架,并引入Ramberg-Osgood循环本构模型,以等本征损伤耗散功作为等寿命... 详细信息

金属构件疲劳破坏是工业中常见的破坏形式。为了提高构件疲劳寿命的预测精度,针对低周疲劳载荷下平均应变对疲劳寿命的影响,基于连续介质损伤力学及其不可逆热力学框架,并引入Ramberg-Osgood循环本构模型,以等本征损伤耗散功作为等寿命条件,建立了一种考虑平均应变的低周疲劳寿命预测模型。为对比验证新建模型的有效性和先进性,采用新建模型、修正的Ohji模型、Sandor模型和Wei-Wong模型分别对叠加平均应变的45钢和2124-T851铝合金的低周疲劳寿命进行了预测,并与对应的试验结果进行对比。结果表明:新建模型的预测结果与试验结果吻合较好,其预测效果优于现有模型。基于本征损伤耗散理论的疲劳寿命预测方法为金属材料疲劳寿命的预测提供了新思路。

关键词：低周疲劳损伤力学平均应变本征损伤耗散功寿命预测

Sheyang—A Coastal Window for Trade in Mid-northern Jiangsu

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China's Foreign Trade 1995年第9期 38-39页

作者： wang jiadong,Sheyang County Magistrate

To carry out internationalized economic strategy is one of the "Three Great Development Strategies" that Jiangsu Province faces in the 21st century, Being a coastal-open county, Sheyang will implement, an all-round outwardly oriented strategy to promote its coastal dominance and build a coastal window opening to the outside world in the middle part of northern Jiangsu. Sheyang is located at the middle of the 954-kilometer coastline of Jiangsu, looking towards Japan and Korea across the sea. Its own coastline is 109.6 kilometers in length, the first in the province, and it is in the forward position where the country, the province and the city implement coastal

关键词： Window Sheyang A Coastal Window for Trade in Mid-northern Jiangsu

水平激励下带竖向隔板的二维矩形储箱中流体晃动研究

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振动与冲击 2023年第2期42卷 276-284页

作者：温国正王佳栋曹占雪赵士琳江苏大学土木工程与力学学院江苏镇江212013

研究了水平激励下二维矩形储箱中流体的晃动,抑制晃动的装置为竖向的刚性隔板,建立了隔板在储箱自由液面处的解析模型。首先通过引入人工界面的方式,将流体域划分成若干个流体子域,使每个流体子域对应的速度势函数满足C1连续性条件。基... 详细信息

研究了水平激励下二维矩形储箱中流体的晃动,抑制晃动的装置为竖向的刚性隔板,建立了隔板在储箱自由液面处的解析模型。首先通过引入人工界面的方式,将流体域划分成若干个流体子域,使每个流体子域对应的速度势函数满足C1连续性条件。基于叠加原理,使用分离变量法求得每个流体子域的速度势的形式解,将形式解代入子域间界面与自由液面条件可得含有待定系数的级数方程,通过加权积分消去方程中的空间坐标,截断方程可得特征方程,由此可得晃动频率与模态。将水平激励下的速度势函数分解为摄动速度势与刚体速度势,将摄动速度势和刚体速度势代入自由液面的波动方程即可求得含广义坐标的动力响应方程,求解该方程可得储箱中流体的晃动响应。

关键词：竖向隔板矩形储箱水平激励刚体速度势摄动速度势