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Building Feedback-Regulation System Through Atomic Design for Highly Active SO_(2)Sensing

Nano-Micro Letters 2024年第7期16卷 343-357页

作者： Xin Jia Panzhe Qiao Xiaowu Wang Muyu Yan Yang Chen Bao-Li An Pengfei Hu Bo Lu Jing xu Zhenggang xue jiaqiang xu NEST Lab Department of ChemistryCollege of SciencesShanghai UniversityShanghai 200444People’s Republic of China Shanghai Synchrotron Radiation Facility Zhangjiang LabShanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204People’s Republic of China School of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026People’s Republic of China Key Laboratory of Organic Compound Pollution Control Engineering(MOE) School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444People’s Republic of China Shanghai University Instrumental Analysis&Research Center of Shanghai UniversityShanghai 200444People’s Republic of China

Reasonably constructing an atomic interface is pronouncedly essential for surface-related gas-sensing ***,we present an ingen-ious feedback-regulation system by changing the interactional mode between single Pt atoms and adjacent S species for high-efficiency SO_(2)*** found that the single Pt sites on the MoS_(2)surface can induce easier volatiliza-tion of adjacent S species to activate the whole inert S ***,the activated S species can provide a feedback role in tailoring the antibonding-orbital electronic occupancy state of Pt atoms,thus creating a combined system involving S vacancy-assisted single Pt sites(Pt-Vs)to synergistically improve the adsorption ability of SO_(2)gas ***-more,in situ Raman,ex situ X-ray photoelectron spectroscopy testing and density functional theory analysis demonstrate the intact feedback-regulation system can expand the electron transfer path from single Pt sites to whole Pt-MoS_(2)supports in SO_(2)gas *** with wireless-sensing modules,the final Pt1-MoS_(2)-def sensors array can further realize real-time monitoring of SO_(2)levels and cloud-data storage for plant *** a fundamental understanding of the intrinsic link between atomic interface and sensing mechanism is thus expected to broaden the rational design of highly effective gas sensors.

关键词： Feedback-regulation system Atomic interface SO_(2)sensor Single-atom sensing mechanism Intelligent-sensing array

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湖北省医疗机构药学门诊调研

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中国医院药学杂志 2024年第9期44卷 1103-1107页

作者：徐佳强周红周莹史琛华中科技大学同济医学院附属协和医院药学部湖北武汉430022

目的:对湖北省医疗机构开设收费药学门诊的情况进行摸底,为更好地推动药学门诊以及医院药学服务的发展提供参考。方法:通过设计调查问卷,系统规范地对医疗机构内开设药学门诊的基本情况、发展进程进行调查,并以样本量和构成比对结果进... 详细信息

目的:对湖北省医疗机构开设收费药学门诊的情况进行摸底,为更好地推动药学门诊以及医院药学服务的发展提供参考。方法:通过设计调查问卷,系统规范地对医疗机构内开设药学门诊的基本情况、发展进程进行调查,并以样本量和构成比对结果进行分析与阐述。结果:湖北省内共有118家医疗机构接受了本次问卷调查。调查结果表明,一方面绝大多数医疗机构从硬件设施、软件管理及人员配置上均已满足甚至已超出开设药学门诊的条件,但目前仅有44家已开设药学门诊,开设收费药学门诊的有19家,未开设的原因不一。另一方面,药学门诊所开设的专业方向与湖北省内重点关注疾病方向基本一致,且得到了各医疗机构医务人员及患者的认可。结论:尽管药学门诊为医务人员、患者所认可,并存在需求,且湖北省内已出台收费相关标准,但由于多种原因,导致药学门诊在湖北省的开设情况并不理想。这需要国家出台相关法律法规、政策来保障药师开展规范化的药学服务,提高全社会对药学服务价值的认识。

关键词：湖北省药学门诊药学服务调研

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泡沫镍负载NiCoP@MnCo-OH正极的制备及电化学性能

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河南师范大学学报（自然科学版） 2024年第4期52卷 132-141页

作者：卫雪菲高天歌袁安保徐甲强上海大学理学院化学系新能源与传感技术实验室上海200444

采用水热磷化再水热的多步反应制备了泡沫镍(NF)负载的镍钴磷化物表面包覆锰钴氢氧化物的核壳结构纳米线阵列复合材料电极(NiCoP@MnCo-OH/NF),并对其结构、形貌以及作为碱性储能器件正极的电化学性能进行了表征.结果表明,在碱性电解液中... 详细信息

采用水热磷化再水热的多步反应制备了泡沫镍(NF)负载的镍钴磷化物表面包覆锰钴氢氧化物的核壳结构纳米线阵列复合材料电极(NiCoP@MnCo-OH/NF),并对其结构、形貌以及作为碱性储能器件正极的电化学性能进行了表征.结果表明,在碱性电解液中,该电极在0.3 A/g电流密度下的放电比容量高达477.6 mAh/g,在10.0 A/g高电流密度下也可达270.0 mAh/g,远优于NiCoP/NF和MnCo-OH/NF电极.在10.0 A/g下经8000次充放电循环后,容量保持率为69.2%.优异的电化学性能归因于NiCoP和MnCo-OH良好的导电性、独特的纳米线核壳异质结构及复合物中两组分间的协同作用.

关键词：镍钴磷化物锰钴氢氧化物复合物正极核壳结构电化学性能

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NiCo_(2)O_(4)@PANI复合材料的制备及其电化学性能研究

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河南师范大学学报（自然科学版） 2024年第1期52卷 28-33页

作者：徐甲强高天歌卫雪菲袁安保上海大学理学院化学系创新能源与传感技术实验室上海200444

通过水热处理及电化学沉积,在集流体泡沫镍上原位生长出NiCo_(2)O_(4)@PANI复合材料.通过扫描电镜观察到泡沫镍上均匀分布着表面粗糙的纳米棒阵列,这种结构有利于电极材料与电解液的充分接触与反应;PANI(聚苯胺)的包覆增加了NiCo_(2)O_... 详细信息

通过水热处理及电化学沉积,在集流体泡沫镍上原位生长出NiCo_(2)O_(4)@PANI复合材料.通过扫描电镜观察到泡沫镍上均匀分布着表面粗糙的纳米棒阵列,这种结构有利于电极材料与电解液的充分接触与反应;PANI(聚苯胺)的包覆增加了NiCo_(2)O_(4)的导电性,降低了载流子传输的活化能,因而表现出优异的电化学性能.在1 mA·cm^(-2)的电流密度下,复合材料的比电容为2307.15 F·g^(-1).当电流密度提升到20 mA·cm^(-2)后,比电容的保留率为78.13%.在10 mA·cm^(-2)电流密度下,循环2000次后,比电容保留率为85.46%.测试结果证明该复合材料作为电极材料,在超级电容器的应用中有着巨大的潜力.

关键词： NiCo_(2)O_(4)复合材料超级电容器电沉积

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高烟气循环W型辐射管烧嘴研究

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冶金能源 2024年第1期43卷 41-44页

作者：徐家强李明明曾伟龙高阳中冶南方(武汉)热工有限公司广西钢铁集团有限公司

为了提高热效率、优化辐射管表面温度均匀性及降低NO_(x)排放,文章设计了一款双行程换热高烟气循环W型辐射管烧嘴,并搭建了实验平台,进行了大量实验研究,得出以下结论:得益双行程管式换热,空气预热温度在500℃以上,满负荷时预热温度可达... 详细信息

为了提高热效率、优化辐射管表面温度均匀性及降低NO_(x)排放,文章设计了一款双行程换热高烟气循环W型辐射管烧嘴,并搭建了实验平台,进行了大量实验研究,得出以下结论:得益双行程管式换热,空气预热温度在500℃以上,满负荷时预热温度可达755℃;设计的卷吸结构能够卷吸大量烟气,使助燃空气氧含量低至13.34%,辐射管表面最大温差小于120℃,NO_(x)排放低于53×10^(-6)。

关键词： W型辐射管烧嘴温度均匀性烟气再循环 NO_(x)

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Fabrication of high sensitivity 2-PEA sensor based on Aldehyde-functionalized mesoporous carbon

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Chinese Chemical Letters 2023年第1期34卷 499-502页

作者： Ye Zhu Yongheng Zhu jiaqiang xu Department of Stomatology Huashan Hospital Affiliated to Fudan UniversityShanghai 200040China Department of Physics&Department of Chemistry College of ScienceShanghai UniversityShanghai 200444China College of Food Science&Technology Shanghai Ocean UniversityShanghai 213064China

2-Phenylethylamine(2-PEA)is one of the main ingredients for ***,it is necessary to limit its use and illegal trade by conveniently detecting 2-PEA ***,a QCM based 2-PEA gas sensor was constructed by using aldehyde functionalized mesoporous carbon(FDU-15-CHO)as sensing materials designed according to Schiff base adsorption *** 2D hexagonal mesoporous structures of the sensing material have been confirmed by small-angle X-ray diffraction(SXRD),transmission electron microscopy(TEM),and N2adsorption-desorption *** covalent grafting of aldehyde group onto the FDU-15 was confirmed by Fourier transform infrared spectroscopy(FT-IR).FDU-15-CHO based Quartz Crystal Microbalance(QCM)sensor shows better sensitivity to 2-PEA than its parent ***,the detection limit of FDU-15-CHO based sensor can reach down to 1 ppm,and its selectivity and reproducibility are *** high concentrations of active sites in the mesopores of FDU-15 are believed to facilitate 2-PEA adsorption,and thus the presence of the-CHO group leading to sensitive and selective response,which is verified by Gaussian simulation.

关键词： Quartz crystal microbalance(QCM) 2-Phenylethylamine FDU-15-CHO Gas sensor Gaussian software

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Preparation of functional ordered mesoporous carbons and their application as the QCM sensor with ultra-low humidity

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Chinese Chemical Letters 2020年第8期31卷 2150-2154页

作者： Ye Zhu Weijia Zhang jiaqiang xu The State Key Laboratory of Molecular Engineering of Polymers Department of ChemistryFudan UniversityShanghai 200433China Department of Physics&Department of Chemistry College of ScienceShanghai UniversityShanghai 200444China

Ordered mesoporous carbon(OMCs)FDU-15 was synthesized through an EISA(Evaporation-Induced Self-Assembly)method,and the oxidized OMCs(FDU-15-COOH)were obtained by subsequent oxidation treatments in liquid phase to introduce functional groups,The samples were characterized by XRD,TEM,FT-IR and nitrogen adsorption-desorption test,The low humidity sensing performances of FDU-15 and FDU-15-COOH thin films were investigated by using a quartz crystal microbalance(QCM)*** responses of FDU-15-COOH is higher than that of the pristine FDU-15 at very low humidity(<729 ppmv)with high long-term stability,implying that FDU-15-COOH is a good candidate for low humidity QCM sensor.

关键词： Low humidity Sensor Mesoporous carbon Functional QCM

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Hydrogen Sensing Characteristics of ZnSnO_3 Micro-Particles Doped with Noble Metal Pd

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稀有金属材料与工程 2006年第A3期35卷 167-169页

作者： jiaqiang xu Xiaohua Jia Xiangdong Lou College of Material and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450002 China College of Chemistry and Environmental Science Henan Normal University Xinxiang 453007 China

Perovskite-type oxide ZnSnO_3 doped with 0.5 wt% Pd was prepared directly by a hydrothermal process,its crystal structure and ceramic microstructure were characterized by XRD and TEM,and the gas sensing properties were tested in static *** is found that the sensors based on ZnSnO_3 micro-particles have good sensitivity and selectivity to H_*** sensitivity can be changed with working temperature;the sensitivity of the sensors to H_2 could arrive 21 times when the working temperature is 332℃.

关键词： hydrothermal method perovskite-type oxide gas sensor ZnSnO3

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Preparation and NO_2 Sensing Characteristics of LaFeO_3 Nanoparticles

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稀有金属材料与工程 2006年第A3期35卷 165-166页

作者： Xiangdong Lou Xiaohua Jia jiaqiang xu College of Chemistry and Environmental Science Henan Normal University Xinxiang 453007 China College of Materials and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450002 China

LaFeO_3 nanoparticles were prepared by decomposing a precursor La[Fe(CN)_6]·4H_2O at 800℃,the precursor was synthesized by a coordination precipitation process at room *** decomposing mechanism of the precursor was investigated by analyzing TG-DSC *** crystal structure,particle size and ceramic microstructure were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM).Furthermore,the gas sensing properties were tested at static *** can be shown that LaFeO_3 nanoparticles are highly crystallized after sintering at 800℃,the particle size is about 50 *** sensor based on LaFeO_3 nanoparticles shows remarkable sensitivity to NO_2.

关键词： thermal decomposition gas sensor LaFeO3

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Noble Metal-Doped In_2O_3 for Enhancing Response to H_2

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稀有金属材料与工程 2006年第A3期35卷 136-139页

作者： jiaqiang xu Xiaohua Wang Jianian Shen College of Materials and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450002 China Institute of Materials Shanghai University Shanghai 200072 China

Nanocrystalline In_2O_3 was synthesized through a controllable solvothermal process in one-step at 210℃for 24 h. Gas sensing properties were tested by mixing gas in air in static *** 268.5℃,the nanocrystal showed high sensitivity to LPG but lower sensitivity to H_2 and *** order to enhance the sensitivities to H_2 and CO,0.5 mass % Au and Pd were doped by an impregnation *** sensitivities to H_2 and CO were increased under different working ***-doped In_2O_3 was superior to Pd-doped In_2O_3 whatever to H_2 or CO;the sensitivity was increased with the increase of working temperature;gas sensing properties to H_2 overmatched to CO.

关键词： solvothermal process indium oxide noble metal H2 sensor

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