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Efficient CO_2 Electrolysis with Fluorite Structure Nanoparticles Modified Perovskite Structure La_(0.75)Sr_(0.25)Cr_(0.5)Mn_(0.5)O_(3-δ) Cathode

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Chinese Journal of Structural Chemistry 2018年第10期37卷 1596-1602页

作者： WANg Wen-Yuan HOU Shi-Sheng hu Xiu-lia XIE Kui CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350007China

Perovskite structure La_（0.75）Sr_（0.25）Cr_（0.5）Mn_（0.5）O_（3-δ）（LSCM） cathode with unique structure can electrolyze CO_2 to CO in solid oxide electrolysers（SOEs）.However,the cell performance is restricted by its electro-catalysis *** this work,fluorite structure nanoparticles（CeO_（2-δ）） are impregnated on LSCM cathode to improve the electro-catalysis activity.X-ray diffraction（XRD）,scanning electron microscope（SEM） and X-ray photoelectron spectroscopy（XPS） together approve that the fluorite structure nanoparticles are uniformly distributed on the perovskite structure LSCM *** measurements illustrate that direct CO_2 electrolysis with 10%mol CeO_（2-δ） impregnated LSCM cathode exhibits excellent performance for current density（0.5 A×cm^（-2）） and current efficiency（～95%） at 800 ℃ under 1.6 *** is believed that the enhanced performance of directed CO_2 electrolysis may be due to the synergetic effect of fluorite structure CeO_（2-δ） nanoparticles and perovskite structure LSCM ceramic electrode.

关键词： perovskite structure fluorite structure LSCM solid oxide electrolysers impregnation

Experimental and DFT studies of flower-like Ni-doped Mo_(2)C on carbon fiber paper:A highly efficient and robust HER electrocatalyst modulated by Ni(NO_(3))_(2)concentration

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Journal of Advanced Ceramics 2022年第8期11卷 1294-1306页

作者： Lei ZHANg Zhihui hu Juntong huANg Zhi CHEN Xibao lia Zhijun FENg huiyong YANg Saifang huANg Ruiying LUO School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang 330063China School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Research Institute for Frontier Science Beihang UniversityBeijing 100191China

Developing highly efficient and stable non-precious metal catalysts for water splitting is urgently *** this work,we report a facile one-step molten salt method for the preparation of self-supporting Ni-doped Mo_(2)C on carbon fiber paper(Ni–Mo_(2)CCB/CFP)for hydrogen evolution reaction(HER).The effects of nickel nitrate concentration on the phase composition,morphology,and electrocatalytic HER performance of Ni-doped Mo_(2)C@CFP electrocatalysts was *** the continuous increase of Ni(NO_(3))_(2)concentration,the morphology of Mo_(2)C gradually changes from granular to flower-like,providing larger specific surface area and more active *** nickel(Ni)into the crystal lattice of Mo_(2)C largely reduces the impedance of the electrocatalysts and enhances their electrocatalytic *** as-developed Mo_(2)C–3 M Ni(NO_(3))_(2)/CFP electrocatalyst exhibits high catalytic activity with a small overpotential of 56 mV at a current density of 10 mA·cm^(-2).This catalyst has a fast HER kinetics,as demonstrated by a very small Tafel slope of 27.4 mV·dec^(-1),and persistent long-term stability.A further higher Ni concentration had an adverse effect on the electrocatalytic *** functional theory(DFT)calculations further verified the experimental *** doping could reduce the binding energy of Mo–H,facilitating the desorption of the adsorbed hydrogen(Hads)on the surface,thereby improving the intrinsic catalytic activity of Ni-doped Mo_(2)C-based ***,excessive Ni doping would inhibit the catalytic activity of the *** work not only provides a simple strategy for the facile preparation of non-precious metal electrocatalysts with high catalytic activity,but also unveils the influence mechanism of the Ni doping concentration on the HER performance of the electrocatalysts from the theoretical perspective.

关键词： Mo_(2)C@CFP electrocatalyst nickel(Ni)doping hydrogen evolution reaction(HER) water splitting molten salt method

Prevention and treatment of gerbil hepatitis E using the programmable CRISPR-Cas13d system

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genes & Diseases 2024年第4期11卷 94-97页

作者： Chengcheng Zhao Chong lia Sa Li Hanyu Wu Pengyao Ren Tianlong Liu Xiaoxiang hu Ran Zhang State Key Laboratory of Animal Biotech Breeding College of Biological SciencesChina Agricultural UniversityBeijing 100193China Laboratory of Veterinary Pathology and Nanopathology College of Veterinary MedicineChina Agricultural UniversityBeijing 100193China

In recent years,the global incidence of hepatitis E virus(HEV)has been rising,leading to increased morbidity and mortality associated with ***13,a CRISPR effector,shows promise as an antiviral agent against singlestranded RNA ***13d,a type VI-D effector,exhibits higher efficiency in suppressing RNA viruses compared to other type VI ***,its in vivo activity against RNA viruses in mammals remains unknown.

关键词： mortality hepatitis treatment

The magic of integration:Exploring the construction of dithienylethene-based infinite coordination polymers and their synergistic effect for gaseous ammonia probe applications

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Chinese Chemical Letters 2016年第4期27卷 518-522页

作者： Yan-Kai lia Jun-Ji Zhang Zi-Jun Bian You-Xin Fu Fei Liu Chen-hui Wang Xiang Ma Jun hu Hong-Lai Liu Key Laboratory for Advanced Materials and Department of Chemistry East China University of Science and Technology Key Laboratory for Advanced Materials and Institute of Fine Chemicals East China University of Science and Technology Xi’an Thermal Power Research Institute Co. Ltd. (Suzhou Branch)

Infinite coordination polymers are recognized as excellent platform for *** motifs,which are one of the most attractive functional moieties,were incorporated into an infinite coordination polymer,to deliver a‘‘smart’’porous material that can response to external *** obtained dithienylethene-based infinite coordination polymers（named Cu-DTEDBA）share the advantages of both infinite coordination polymers（porosity and stability）and dithienylethene motifs（photochromism）.The physical and chemical properties of Cu-DTEDBA were characterized by FTIR,TEM,SEM,XRD,TgA,UV–vis,EDX and ***,the combination of dithienylethene and infinite coordination polymers gives rise to a synergistic effect,which induces functional behaviors of ammonia sensor *** open and closed forms of Cu-DTEDBA exhibit distinct colorimetric change upon exposure to gaseous ammonia,which is not observed in dithienylethene free molecules.

关键词： Dithienylethene Photochromism Infinite coordination polymers Synergistic effect gaseous ammonia probe

Insights into the nucleation,grain growth and phase transformation behaviours of sputtered metastableβ-W films

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Journal of Materials Science & Technology 2021年第31期90卷 66-75页

作者： Shuqun Chen Jinshu Wang Ronghai Wu Zheng Wang Yangzhong Li Yiwen Lu Wenyuan Zhou Peng hua Hongyi lia Key Laboratory of Advanced Functional Materials Education Ministry of ChinaFaculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi’an 710129China High Performance Computing Department National Supercomputing Center in ShenzhenShenzhen 518055China China Ship Development and Design Center Wuhan 430074China

Metastable phase in tungsten film is of great interests in recent years due to its giant spin Hall effects,however,little information has been known on its nucleation,growth and phase *** this paper,a 900 nm-thick tungsten film with double-layer structure(α-W underlayer andβ-W above it)was produced on SiO_(2)/Si substrate by high vacuum magnetron sputtering at room *** structural properties ofβ-W were systemically investigated by X-ray diffraction,transmission electron microscopy,thermodynamic calculation,first-principle and phase-field *** is found that theβ-W nucleation is energetically favoured on the SiO_(2)surface compared to theα-W *** the film thickening proceeds,β-W[211]turns to be preferred direction of growth owing to the elastic strain energy minimization,which is verified by phase-field ***,theβ→αphase transformation takes place near the film-substrate interface while the rest of the film keeps theβ-W phase,leading to a doublelayer *** localized phase transition is induced by lower gibbs free energy ofα-W phase at larger grain sizes,which can be confirmed by thermodynamic *** in-situ heating TEM analysis of the as-deposited film reveals that theβ→αphase transformation is fulfilled byα/βinterface propagation rather than local atomic *** findings offer valuable insights into the intrinsic properties of metastable phase in tungsten.

关键词： Metastable phases Tungsten Nucleation and growth Phase field modelling Phase transformation

Thin,soft,skin-integrated electronics for real-time and wireless detectionof uricacid in sweat

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International Journal of Smart and Nano Materials 2023年第4期14卷 406-419页

作者： Yue hu Lan Wang Jian lia Yawen Yang guangyao Zhao Yiming Liu Xingcan huang Pengcheng Wu Binbin Zhang Yanli Jia Mengge Wu Shengxin Jia Qiang Zhang guoqiang Xu Rui Shi Dengfeng Li Yingchun Li Zhengchun Peng Xinge Yu Department of Biomedical Engineering City University of Hong KongHong KongP.R.China State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University) College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhenP.R.China Transfusion Department Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengduP.R.China dHong Kong Center for Cerebra-Cardiovascular Health Engineering Hong Kong Science ParkNew TerritoriesHong KongP.R.China College of Science Harbin Institute of Technology(Shenzhen)ShenzhenGuangdongP.R.China CAS-CityU Joint Laboratory for Robotic Research Shenzhen Research Institute City University of Hong KongShenzhenP.R.China

Wearable sweat sensors are gaining significant attention due to their unparalleled potential for noninvasive health ***,as a kind of body fluid,contains informative physiological indicators that are related to personalized health *** in wearable sweat sampling and routing technologies,flexible,and stretchable materials,and wireless digital technologies have led to the development of integrated sweat sensors that are comfortable,flexible,light,and ***,we report a flexible and integrated wearable device via incorporating a microfluidic system and a sensing chip with skin-integrated electronic format toward in-situ monitoring of uric acid(UA)in sweat that associates with gout,cardiovascular,and renal *** microfluidic system validly realizes the real-time capture perspiration from human *** obtained detection range is 5-200μM and the detection limit is 1.79μM,which offers an importance diagnostic method for clinical relevant lab *** soft and flexible features of the constructed device allows it to be mounted onto nearly anywhere on the *** tested the sweat UA in diverse subjects and various body locations during exercise,and similar trends were also observed by using a commercial UA assay kit.

关键词： Sweat sensors skinintegrated electronics in-situ detection microchannels wearable device

Probing the Electronic Structure of the CoB16- Drum Complex: Unusual Oxidation State of Co-1

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Chinese Journal of Chemical Physics 2019年第2期32卷 241-247,I0003页

作者： Wan-Lu Li Wan-Lu lia Zhi-Yu Jiang Wei-Jia Chen Han-Shi hu Lai-Sheng Wang Jun Li Probing the Electronic Structure of the CoB16- Drum Complex: Unusual Oxidation State of Co-1 Probing the Electronic Structure of the CoB16- Drum Complex: Unusual Oxidation State of Co-1

Since the discovery of the first drum-like CoB16- complex, metal-doped drum-like boron nanotubular structures have been investigated with various metal dopants and different tubular size, forming a new class of novel nanostructures. The CoB16- cluster was found to be composed of a central Co atom coordinated by two fused B8 rings in a tubular structure, representing the potential embryo of metal-filled boron nanotubes and providing opportunities to design one-dimensional metal-boron nanostructures. Here we report improved photoelectron spectroscopy and a more in-depth electronic structure analysis of CoB16-, providing further insight into the chemical bonding and stability of the drum-like doped boron tubular structures. Most interestingly, we find that the central Co atom has an unusually low oxidation state of ?1 and neutral CoB16 can be viewed as a charge transfer complex (Co-@BB16+), suggesting both covalent and electrostatic interactions between the dopant and the boron drum.

关键词： Photoelectron spectroscopy Metal-boron clusters Ab initio calculations Chemical bonding

X荧光光谱法分析硅质-半硅质耐火材料的主次元素含量

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光谱实验室 2010年第4期27卷 1565-1568页

作者：宋霞郭红丽胡坚洛阳理工学院环境工程与化学系中钢集团洛阳耐火材料研究院河南省洛阳市涧西区西苑路471023

介绍了玻璃熔片XRF测定硅质-半硅质耐火材料中SiO2、Al2O3、Fe2O3、TiO2、CaO、MgO、K2O、Na2O等常见组分的定量分析。确定了该分析方法所适用的测定范围,并对标样的制备、试验条件的选择和分析结果做出了详细描述。

关键词：玻璃熔片 X射线荧光光谱法硅质-半硅质耐火材料

Association between essential hypertension and polymorphisms of beta 1 adrenergic receptor gene g1165C (gly389Arg) in Chinese Mongolian population

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Neural Regeneration Research 2006年第3期1卷 226-229页

作者： Rile hu Rile hu Shigang Zhao guangming Niu Chunyu Zhang Zhiguang Wang Mingfang Jiang Department of Neurology Department of Imaging First Affiliated Hospital of Inner Mongolia Medical College Hohhot 010050 Inner Mongolia Autonomous Region China Vulate Houqi Red Cross Society Wulate Houqi 015500 Inner Mongolia Autonomous Region China

BACKgROUND： The prevalences of hypertension, cerebrovascular diseases, etc. are higher in Mongolian population because of the influence of various factors including genetics, geography, diet, etc. Therefore, it is helpful to develop researches on the genetics of various diseases including hypertension in Mongolian population. OBJECTIVE： To analyze the association between the polymorphism of beta1 adrenergic receptor （β1-AR） gene g1165C （Arg389gly）, an important candidate gene for various diseases of cardiovascular system, and essential hypertension in Mongolian population. DESIgN ： A cross-sectional study SETTINgS： Department of Neurology, the First Affiliated Hospital of Inner Mongolia Medical College; Wulate Houqi Red Cross Society. PARTICIPANTS： The survey was carried out from February 2003 to March 2005. Totally 239 Mongolian residents, whose blood relations of 3 generations were all Mongolians, were selected from Wulate Houqi, Inner Mongolia, and they were all informed with the survey and detected items. Based on the diagnostic standard of hypertension set by WHO in 1999, the subjects were divided into two groups according to the level blood pressure： ① Normal blood pressure group （n=117）： systolic blood pressure （SBP）〈 140 mm Hg （1 mm Hg =0.133 kPa）, diastolic blood pressure （DBP）〈 90 mm Hg, and those having histories of cerebrovascular disease, heart disease, diseases of liver, kidney and tiroides, and diabetes mellitus were excluded. ② Essential hypertension group （n=122）： including 51 patients with simple high SBP. All the enrolled subjects had no blood relationship with each other, and had no history of miscegenation. METHODS ： The body height, body mass, waist circumference and blood lipids were measured routinely, and their habits of smoking and drinking were also investigated. Penpheral venous blood （5 mL） was drawn, the genome DNA was extracted, and the polymorphisms of the β1-AR gl165C （gly389Arg） genotype were detected with the Sequenom system. Pol

关键词： gly389Arg Association between essential hypertension and polymorphisms of beta 1 adrenergic receptor gene g1165C in Chinese Mongolian population gene