检索结果-南通市图书馆

Molecular-level proton acceptor boosts oxygen evolution catalysis to enable efficient industrial-scale water splitting

引用

Green Energy & Environment 2024年第2期9卷 344-355页

作者： Yaobin Wang Qian Lu Xinlei Ge feng Li Le Chen Zhihui Zhang zhengping Fu Yalin Lu Yang Song Yunfei Bu Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET) Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control(AEMPC)UNIST-NUIST Energy and Environment Jointed Lab(UNNU)School of Environmental Science and TechnologyNanjing University of Information Science and Technology(NUIST)219 NingliuNanjing210044China Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsFudan University220 HandanShanghai200433China Jiangsu Key Laboratory of Advanced Materials and Technology School of Petrochemical EngineeringChangzhou University1 GehuChangzhou213164China Anhui Laboratory of Advanced Photon Science and Technology University of Science and Technology of China(USTC)96 JinzhaiHefeiAnhui 230026China School of Chemistry and Chemical Engineering Nanjing University of Science and Technology200 Xiaolingwei210094China

Industrial water splitting has long been suppressed by the sluggish kinetics of the oxygen evolution reaction(OER),which requires a catalyst to be ***,we propose a molecular-level proton acceptor strategy to produce an efficient OER catalyst that can boost industrial-scale water ***-level phosphate(-PO_(4))group is introduced to modify the surface of PrBa_(0.5)Ca_(0.5)Co_(2)O_(5)+δ(PBCC).The achieved catalyst(PO_(4)-PBCC)exhibits significantly enhanced catalytic performance in alkaline *** on the X-ray absorption spectroscopy results and density functional theory(DFT)calculations,the PO_(4)on the surface,which is regarded as the Lewis base,is the key factor to overcome the kinetic limitation of the proton transfer process during the *** use of the catalyst in a membrane electrode assembly(MEA)is further evaluated for industrial-scale water splitting,and it only needs a low voltage of 1.66 V to achieve a large current density of 1 A cm^(-2).This work provides a new molecular-level strategy to develop highly efficient OER electrocatalysts for industrial applications.

关键词： Oxygen evolution reaction Nanofiber Water splitting Proton acceptor Perovskite

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nano-silver-modified polyphosphazene nanoparticles with different morphologies:Design,synthesis,and evaluation of antibacterial activity

引用

Chinese Chemical Letters 2023年第12期34卷 433-439页

作者： Tairong Kuang Linbing Deng Sitao Shen Hongxia Deng Zhisen Shen Zhenjie Liu zhengping Zhao feng Chen Mingqiang Zhong Zhejiang Key Laboratoryof Plastic Modification and Processing Technology Collegeof Material Science and EngineeringZhejiang University of Technology Hangzhou 310014China Department of Otorhinolaryngology Head and Neck SurgeryThe Afiliated LiHuili HospitalNingbo UniversityNingbo 315040China Department of Vascular Surgery Second Afiliated Hospital of Zhejiang University School of MedicineHangzhou 310009China

Drug-resistant bacteria present a severe threat to public health,emphasizing the importance of developing broad-spectrum antibacterial agents that are free from drug *** silver-based antibacterial agents,nano-silver has been found to exhibit the most promising and comprehensive *** exploration of the antibacterial capacity and morphological changes of silver nanoparticles(AgNPs)could offer a starting point for the development of safe and efficient antibacterial *** this study,three types of nano-silver-modified polyphosphazene(PRV)nanoparticles with different morphologies were synthesized using precipitation *** nanoparticles were characterized using various techniques,including Fourier-transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and thermogravimetric analysis(TGA).The antibacterial activity of these nanoparticles against Escherichia coli(***)and Staphylococcus aureus(***)was assessed using minimum inhibitory concentration(MiC)/minimum bactericidal concentration(MBC)tests and inverted fluorescence *** results revealed that the antibacterial activity of silver nanoparticles can vary significantly depending on their immobilized ***@PRV Strawberry-like nanoparticles(NPs)exhibited higher antibacterial activity compared to Ag@PRV Yolk-Shell NPs and Ag@PRV Cable-like nanofibers(NFs).Notably,all three types of synthesized nanoparticles demonstrated a stronger bactericidal effect on Gram-positive bacteria than Gram-negative ***/dead bacterial staining and scanning electron microscopy demonstrated that silver can kill bacteria by altering the permeability of their cell *** findings offer valuable insights for designing and practically applying new silver-based antibacterial agents in the future.

关键词： Nano-silver Polyphosphazene Morphology change Antibacterial activity Antibacterial mechanism

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Morphological evolution and kinetic enhancement of Li2FexMn1-xSiO4/C cathodes for Li-ion battery

引用

Progress in Natural Science:Materials International 2018年第5期28卷 535-541页

作者： Datong Zhang zhengping Ding Shuai Zhao Ying Yang Yiming feng Lei Xiao Ran Ji Libao Chen Weifeng Wei State Key Laboratory of Powder Metallurgy Central South University

Li2MnSiO4-based cathode materials possess reasonable work potentials and high theoretical capacities,while the practical energy/power densities are constrained by their inferior kinetics of Li+*** this work,the Pmn21-structure Li2FexMn1-xSiO4/C materials were synthesized via a solvothermal method and evaluated as Liion cathode materials,with notable morphological evolutions and tunable crystallographic habits observed after solvothermal *** Li2Fe0.33Mn0.67SiO4/C material delivers an initial reversible capacity of 250.2mAh g-1at 0.1 C(～1.51 Li+insertion/extraction,1 C=166 mA g-1),excellent high-rate capability(52.2 mAh g-1at 5 C),and good long-term cyclability（64.6%after 196 cycles at 2 C）.The enhanced electrochemical properties are attributed to the boosted ion/electron transports induced by preferred morphological and structural characteristics of Li2Fe0.33Mn0.67SiO4/C.

关键词： Electrochemistry Silicates Nanostructures Enhanced kinetics Li-ion battery

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

N-doped honeycomb-like porous carbon towards high-performance supercapacitor

引用

Chinese Chemical Letters 2020年第7期31卷 1986-1990页

作者： feng Wang Lian Chen Huiling Li Gaigai Duan Shuijian He Lin Zhang Guoying Zhang zhengping Zhou Shaohua Jiang Co-lnnovacion Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210031China Media Lab Massachusetts Institute of TechnologyCambridgeMA 02139United States Shandong Key Laboratory of Biochemical Analysis College of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China Chemical Sciences Division Oak Ridge National LaboratoryOak RidgeTN 37831United Stares

Biomass-derived porous carbon with developed pore structure is critical to achieving high performance electrode *** this work,we report a grape-based honeycomb-like porous carbon(GHPC)prepared by KOH activation and carbonization,followed by N-doping(NGHPC).The obtained NGHPC exhibits a unique honeycomb-like structure with hierarchically interconnected micro/mesopores,and high specific surface area of 1268 m^2/*** a supercapacitor electrode,the NGPHC electrode exhibits a remarkable specific capacitance of 275 F/g at 0.5 A/g in a three-electrode ***,the NGHPC//NGHPC symmetric supercapacitor displays a high energy density of 12.6 Wh/kg,and excellent cycling stability of approximately 95.2% capacitance retention after 5000 cycles at 5 A/*** excellent electrochemical performance of NGHPC is ascribed to its high specific surface area,honeycomb-like structure and high-content of pyrodinic-N(36.29%).It is believed that grape-based carbon materials show great potential as advanced electrode materials for supercapacitors.

关键词： Grape Honeycomb-like Porous carbon Activation Supercapacitor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

羌药质量标准的研究现状分析及对策

引用

华西药学杂志 2021年第1期36卷 90-94页

作者：范维强王战国周德方明黄敏余泽米冯正平余永贵阿坝州食品药品检验中心阿坝州民族药物研究所阿坝州藏羌药质量评价创新研究实验室四川马尔康624000 成都大学医学院羌医药标准研究推广基地整合医药学产业协同创新研究中心四川成都610106

羌药质量标准的制定与完善是羌医药临床用药的安全性和有效性的重要保障,是推进羌医药事业传承与创新的重要内容。现综述了羌医药历史溯源、临床实践、羌药及羌药制剂研究现状,并结合全国民族药质量标准研究的现状和策略,分析了羌医药... 详细信息

羌药质量标准的制定与完善是羌医药临床用药的安全性和有效性的重要保障,是推进羌医药事业传承与创新的重要内容。现综述了羌医药历史溯源、临床实践、羌药及羌药制剂研究现状,并结合全国民族药质量标准研究的现状和策略,分析了羌医药临床应用中开展羌药质量标准研究的紧迫性和必要性,同时提出了羌药质量标准研究的策略和路径。

关键词：羌药医院制剂质量标准羌医药理论现状分析策略适宜技术养生保健

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Solar Photovoltaic Power Prediction Based on Similar Day Approach 36

Solar Photovoltaic Power Prediction Based on Similar Day App...

引用

第36届中国控制会议

作者： Xu Zhang Bo Jiang Xiaoning Zhang Fang Fang zhengping Gao Tao feng The School of Control and Computer Engineering North China Electric Power University

ISBN: (纸本)9781538629185

The output power of photovoltaic（PV） power generation system is related to solar irradiance,temperature,humidity and other meteorological *** output powers in the similar days,which are much alike in meteorological conditions and social activities,will be more likely *** this paper,a prediction algorithm combining the time series and similar day is proposed to predict the power output of a PV *** this algorithm,the meteorological conditions of target days are predicted by the time series analysis,and the subjective weight and the entropy weight method are used to select the similar *** that,the target day’s power output will be forecasted by tuning the weights of similar days’ power *** on the actual data collected from an experimental system,the accuracy of prediction method is verified.

关键词： Photovoltaic(PV) power prediction similar days time series analysis

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Nanocrystalline TiO_(2) thin film electrodes prepared by common pressure hydrothermal method at low temperature

引用

Chinese Science Bulletin 2005年第14期50卷 1449-1452页

作者： LI Chengyu LIN Yuan LI Xueping WANG zhengping MA Yutao ZHOU Xiaowen feng Shujing XIAO Xurui Key Laboratory of Photochemistry Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Chemical College of Harbin Engineering University Harbin 150001 China

Nanocrystalline TiO2 thin film electrodes have been prepared from mixed pastes of tetrabutyl titanate and nanocrystalline TiO2 particles by common pressure hydro- thermal method at low temperature. The tetrabutyl titanate was hydrolyzed and crystallized into anatase TiO2 to inter- connect nanocrystalline TiO2 particles and adhere them to conductive substrates, obtaining highly porous and me- chanically stable TiO2 nanocrystalline film. The conversion efficiencies of the dye-sensitized solar cells based on prepared electrodes on conductive glass substrates and flexible sub- strates were 4.8% and 1.9% under illumination of 100 mW/cm2, respectively.

关键词：二氧化钛薄膜纳米技术低温环境热液压力

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

阻塞性睡眠呼吸暂停在原发性醛固酮增多症患者中患病情况及临床特征

引用

中华内科杂志 2020年第11期59卷 866-871页

作者：梅玫冯正平宋颖何文雯程庆丰杨淑敏胡金波王看然徐智新杜志鹏李启富重庆原发性醛固酮增多症研究团队重庆医科大学附属第一医院内分泌科 400016 不详

目的探索原发性醛固酮增多症(PA)患者中阻塞性睡眠呼吸暂停(OSA)发生比例,比较PA患者合并或不合并OSA的临床特征。方法连续入选96例2015年9月—2018年11月在重庆医科大学附属第一医院内分泌科诊断为PA的患者,依据多导睡眠图(PSG)的呼吸... 详细信息

目的探索原发性醛固酮增多症(PA)患者中阻塞性睡眠呼吸暂停(OSA)发生比例,比较PA患者合并或不合并OSA的临床特征。方法连续入选96例2015年9月—2018年11月在重庆医科大学附属第一医院内分泌科诊断为PA的患者,依据多导睡眠图(PSG)的呼吸暂停低通气指数(AHI)结果,将患者分为PA合并OSA(AHI≥5次/h)组和PA未合并OSA(AHI<5次/h)组。收集临床资料及实验室指标。结果96例PA患者中合并OSA者69例,占71.9%,其中轻度OSA 22例(22.9%),中度OSA 17例(17.7%),重度OSA 30例(31.3%)。与未合并OSA组比较,合并OSA组患者中男性多见(P<0.05),有更高的年龄、体重指数(BMI)、腰围、臀围、肌酐和糖化血红蛋白(HbA1c)水平(P<0.05),而血浆醛固酮浓度(PAC)、卧位醛固酮肾素浓度比(ARR)和确诊试验后PAC较低(P<0.05)。Spearman相关分析显示,AHI与BMI、腰围、臀围、肌酐和HbA1c呈正相关(P<0.05),而与高密度脂蛋白胆固醇、卧位PAC、生理盐水试验结束时PAC呈负相关(P<0.05)。结论PA患者中OSA发生比例高达71.9%,且合并OSA的PA患者代谢异常更明显,提示应在PA患者中常规筛查OSA。

关键词：原发性醛固酮增多症睡眠呼吸暂停,阻塞性醛固酮肾素

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

一个多发性内分泌腺瘤病2型家系的RET 基因检测

引用

中华内分泌外科杂志 2014年第6期8卷 482-485页

作者：龚莉琳田波李蓉汪志红冯正平程庆丰张素华李启富重庆医科大学附属第一医院内分泌科 400016

目的：对一个多发性内分泌腺瘤病2型（ multiple endocrine neoplasia 2，MEN2）家系进行RET基因检测，明确诊断和分型，指导治疗、预防及改善预后。方法采用聚合酶链反应和直接基因测序的方法，对一个临床诊断MEN2的家系（共3名家系成... 详细信息

目的：对一个多发性内分泌腺瘤病2型（ multiple endocrine neoplasia 2，MEN2）家系进行RET基因检测，明确诊断和分型，指导治疗、预防及改善预后。方法采用聚合酶链反应和直接基因测序的方法，对一个临床诊断MEN2的家系（共3名家系成员）和3例正常对照的RET原癌基因21个外显子进行测序。结果该家系中的2例患者和1例无症状一级亲属均为RET原癌基因外显子11第634号密码子位点的杂合错义突变TGC→CGC，半胱氨酸→精氨酸（ C634R）。结论通过RET基因检测明确该家系为多发性内分泌腺瘤病2A型，对家系中患者的治疗和随访起到了指导作用，并筛查出家系中无症状的基因突变携带者。

关键词：多发性内分泌腺瘤病原癌基因基因检测

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Hexagonal TiOF2

Hexagonal TiOF2

引用

第十六届全国晶体生长与材料学术会议

作者： feng Li zhengping Fu Yalin Lu CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and EngineeringUniversity of Science and Technology of China

In the present work,hexagonal TiOF2 was successfully synthesized through a simple hydrothermal *** crystal characteristics of TiOF2 were analyzed based on X-ray

关键词： XRD Hexagonal TiOF2

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：