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Electrocatalytic water splitting at nitrogen-doped carbon layers-encapsulated nickel cobalt selenide

Journal of Energy Chemistry 2019年第7期28卷 161-170页

作者： chuanlai jiao Xiangjie Bo Ming Zhou Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province Key Laboratory of Polyoxometalate Science of Ministry of EducationNational & Local United Engineering Laboratory for Power Batteries Department of Chemistry Northeast Normal University

Generally,the catalytic overpotentials of hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)are unavoidable because of the low charge *** this work,two strategies of alloying of Co with Ni and enclosing of electrocatalysts with carbonaceous materials were both used to accelerate the catalytic efficiency of cobalt selenide for water *** nitrogen-doped carbon(NC)layer improves the reaction kinetics by efficient charge *** alloying of metal into composited electrocatalysts can modify the electronic properties of host materials,thereby tuning the adsorption behavior of intermediate and improving the electrocatalytic *** expected,Nyquist plots reveal that the charge-transfer resistance(Rct)of nickel cobalt selenide encapsulated into nitrogen-doped carbon layer(CoNiSe/NC-3,Co:Ni=1:1)are just 5 and 9 for HER and OER,respectively,which are much lower than those of CoSe/NC-1(Co:Ni=1:0)(81 and 138)and CoNiSe/NC-3 without NC(CoNiSe-3)(54 and 25).With the high charge transfer and porous structure,CoNiSe/NC-3 shows good performance for both HER and *** current density reaches 10 m A cm-2,only 100 and 270 mV overpotentials are required for HER and OER,*** the potential of 1.65 V,full water splitting also can be catalyzed by Co Ni Se/NC-3 with current density of 20 m A cm-2,suggesting that CoNiSe/NC-3 could be used as replacement for noble metal electrocatalysts.

关键词： Nickel cobalt selenide Nitrogen-doped carbon layer Water splitting Hydrogen evolution reaction Oxygen evolution reaction

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Grain-scale deformation in a Mg-0.8wt% Y alloy using crystal plasticity finite element method

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Journal of Materials Science & Technology 2019年第10期35卷 2200-2206页

作者： Wenxue Li Leyun Wang Bijin Zhou chuanlai Liu Xiaoqin Zeng National Engineering Research Center of Light Alloy Net Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China The State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai200240China

Magnesium(Mg) alloys with hexagonal close-packed(HCP) structure usually have a poor ductility at room temperature. The addition of yttrium(Y) can improve the ductility of Mg alloys. To understand the underlying mechanism, crystal plasticity finite element method(CPFEM) was employed to simulate the tensile deformation of a Mg-0.8 wt% Y alloy. The simulated stress–strain curve and the grain-scale slip activities were compared with an in-situ tensile test conducted in a scanning electron *** to the CPFEM result, basal slip is the dominant deformation mode in the plastic deformation stage, accounting for about 50% of total strain. Prismatic slip and pyramidal a slip are responsible for about 25% and 20% of the total strain, respectively. Pyramidal c + a slip and twinning, on the other hand,accommodate much less strain.

关键词： Magnesium alloys Crystal Plasticity finite element modeling EBSD Dislocation Mechanical Behavior

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Nucleic acids analysis

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Science China Chemistry 2021年第2期64卷 171-203页

作者： Yongxi Zhao Xiaolei Zuo Qian Li Feng Chen Yan-Ru Chen Jinqi Deng Da Han Changlong Hao Fujian Huang Yanyi Huang Guoliang Ke Hua Kuang Fan Li Jiang Li Min Li Na Li Zhenyu Lin Dingbin Liu Juewen Liu Libing Liu Xiaoguo Liu Chunhua Lu Fang Luo Xiuhai Mao Jiashu Sun Bo Tang Fei Wang Jianbin Wang Lihua Wang Shu Wang Lingling Wu Zai-Sheng Wu Fan Xia chuanlai Xu Yang Yang Bi-Feng Yuan Quan Yuan Chao Zhang Zhi Zhu Chaoyong Yang Xiao-Bing Zhang Huanghao Yang Weihong Tan Chunhai Fan Institute of Analytical Chemistry and Instrument for Life Science The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and NanomedicineRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai 200240China Cancer Metastasis Alert and Prevention Center Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and ChemotherapyState Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou 350108China CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China State Key Lab of Food Science and Technology International Joint Research Laboratory for Biointerface and BiodetectionSchool of Food Science and TechnologyJiangnan UniversityWuxi 214122China Faculty of Materials Science and Chemistry Engineering Research Center of Nano-Geomaterials of Ministry of EducationChina University of GeosciencesWuhan 430074China College of Chemistry and Molecular Engineering Biomedical Pioneering Innovation Center(BIOPIC)Beijing Advanced Innovation Center for Genomics(ICG)Peking-Tsinghua Center for Life SciencesPeking UniversityBeijing 100871China State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China Division of Physical Biology CAS Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China Bioimaging Center Shanghai Synchrotron Radiation FacilityZhangjiang LaboratoryShanghai Advanced

Nucleic acids are natural biopolymers of nucleotides that store, encode, transmit and express genetic information, which play central roles in diverse cellular events and diseases in living things. The analysis of nucleic acids and nucleic acids-based analysis have been widely applied in biological studies, clinical diagnosis, environmental analysis, food safety and forensic *** the past decades, the field of nucleic acids analysis has been rapidly advancing with many technological *** this review, we focus on the methods developed for analyzing nucleic acids, nucleic acids-based analysis, device for nucleic acids analysis, and applications of nucleic acids analysis. The representative strategies for the development of new nucleic acids analysis in this field are summarized, and key advantages and possible limitations are discussed. Finally, a brief perspective on existing challenges and further research development is provided.

关键词： nucleic acids analysis signal amplification DNA nanotechnology aptamer biosensing

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基于PBL理念的食品科学与工程专业教学模式探索与实践——以安徽科技学院食品工程学院为例

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农产品加工 2023年第5期 106-108,112页

作者：陈春旭赵传磊汪姣丁志刚张齐王广良杜传来安徽科技学院食品工程学院安徽滁州233100

为了探索与实践基于PBL理念的食品科学与工程专业教学模式,以安徽科技学院食品工程学院为例,从教研模式改革、应用能力培养、教师和学生教改积极性调动等方面出发,研究提高学生学习的自主性、教师教研创新能力的教育教学新模式,为学校... 详细信息

为了探索与实践基于PBL理念的食品科学与工程专业教学模式,以安徽科技学院食品工程学院为例,从教研模式改革、应用能力培养、教师和学生教改积极性调动等方面出发,研究提高学生学习的自主性、教师教研创新能力的教育教学新模式,为学校食品科学与工程专业工程认证评估工作提供支撑,也为高等院校食品专业的教育教学研究建设提供实践经验。

关键词： PBL 食品科学与工程教育模式探索实践

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