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8篇 您的检索式:作者名="HE Jiangwei"
    题名 作者 年代 出处 被引量
1Atomic-scale mechanism of the θ’’→θ’ phase transformation in Al-Cu alloys显示文摘The phase transformation of θ’’→θ’ in an Al-5.7 Cu alloy was investigated by aberration-corrected scanning transmission electron microscopy, and the tranformation mode of θ’’→θ’ during aging treatment was clarified. In the presence of the θ’ phases, θ’ was found to be formed by in-situ transformation fromθ’’ with the same plate shape, size and broad faces. The transformation starts from multiple sites within the θ’ precipitate and the whole θ’ phase finally forms as the preferential θ’ sections grow and connect with each other. Antiphase domain boundaries are also found in some θ’ precipitates when the disregistry exists between different θ’ sections.Zhenju Shen Qingqing Ding Chunhui Liu Jiangwei Wang He Tian Jixue Li Ze Zhang 2017Journal of Materials Science & Technology2017,33,10:3
2Preparation and photocatalytic activity of Fe3O4@SiO2@ZnO:La显示文摘In this study,Fe3 O4@SiO2@ZnO:La microspheres were successfully prepared.The microspheres have the advantages of both ZnO doped with La and the Fe3 O4@SiO2 structure such that the former improves the photocatalytic activity of ZnO and the latter can be reused.The X-ray diffraction(XRD),a field emission scanning electron microscope(SEM),a field emission transmission electron microscope(TEM),X-ray photoelectron spectroscopy(XPS),and a vibrating sample magnetometer(VSM)were used to characterize Fe3 O4@SiO2@ZnO:La microspheres.Methyl orange was used as the model molecule to study the effect of the Zn2+concentration and the doping amount of La on the photocatalytic activity of Fe3 O4@SiO2@ZnO:La microspheres.Results show that in the synthesis of Fe3 O4@SiO2@ZnO:La microspheres,photocatalytic activity of the microspheres is enhanced first and weakened later with the increase of Zn2+concentration.In the La doping process,the photocatalytic activity of Fe3 O4@SiO2@ZnO:La microspheres is enhanced with the increase in the La doping amount.The magnetic photocatalysts not only have high photocatalytic activity,but also can be reused.After being reused five times,the photocatalyst’s degradation rate of methyl orange is still as high as 81%,which shows that magnetic photocatalysts have prospective wider applications in photocatalytic degradation of dye wastewater.Xiaowei Lv Wenyi Huang Xingcheng Ding Jiangwei He Qiumei Huang Jialin Tan Hao Cheng Jun Feng Lijun Li 2020Journal of Rare Earths2020,38,12:2
3Preparation of microporous activated carbon and its electrochemical performance for electric double layer capacitor显示文摘Xiaojun He Jiangwei Lei Yejing Geng Xiaoyong Zhang Mingbo Wu Mingdong Zheng 2009Journal of Physics and Chemistry of Solids2009,,3:1
4Spatial confinement of copper single atoms into covalent triazinebased frameworks for highly efficient and selective photocatalytic CO_(2)reduction显示文摘Converting CO_(2)into carbonaceous fuels via photocatalysis represents an appealing strategy to simultaneously alleviate the energy crisis and associated environmental problems,yet designing with high photoreduction activity catalysts remains a compelling challenge.Here,combining the merits of highly porous structure and maximum atomic efficiency,we rationally constructed covalent triazine-based frameworks(CTFs)anchoring copper single atoms(Cu-SA/CTF)photocatalysts for efficient CO_(2)conversion.The Cu single atoms were visualized by high-angle annular dark-field scanning transmission electron microscopy(HAADF-STEM)images and coordination structure of Cu-N-C2 sites was revealed by extended X-ray absorption fine structure(EXAFS)analyses.The as-prepared Cu-SA/CTF photocatalysts exhibited superior photocatalytic CO_(2)conversion to CH4 performance associated with a high selectivity of 98.31%.Significantly,the introduction of Cu single atoms endowed the CuSA/CTF catalysts with increased CO_(2)adsorption capacity,strengthened visible light responsive ability,and improved the photogenerated carriers separation efficiency,thus enhancing the photocatalytic activity.This work provides useful guidelines for designing robust visible light responsive photoreduction CO_(2)catalysts on the atomic scale.Guocheng Huang Qing Niu Yuxin He Jinjin Tian Mingbin Gao Chaoyang Li Ning An Jinhong Bi Jiangwei Zhang 2022Nano Research2022,15,9:1
5Preparation of microporous activated carbon and its electrochemical performance for electric double layer capacitor 显示文摘HE Xiaojun LEI Jiangwei GENG Yejing 2009Journal of Physics and Chemistry of Solids2009,70,:1
6Effect of Epsl gene deletion in Saccharomyces cerevisiae on the secretion of foreign proteins which have disulfide bridges显示文摘HE Jiangwei SAKAMOTO T SONG Youtao 2005FEBS Letters2005,579,11:1
7The Application of Next‑Generation Sequencing to Validate D12S391 Microvariation显示文摘Objective:In a paternity case,the D12S391 locus was reported as a mismatch.To confirm the existence of mutations and mutations come from father or mother.Methods:STR and next-generation sequencing technology were used to validate the sequence.Results:NGS showed the loss of one adenine between the 19.3 allele of the child and allele 20 of the mother.Conclusion:The NGS can be applied in the paternity to validate the mutation.Qingxia Zhang Jinjie Liu He Ren Shuai Sun Yi Zhao Chong Chen Li Jia Yacheng Liu Jiangwei Yan 2018Journal of Forensic Science and Medicine2018,4,2:0
8Ferroelectric polarization effect on the photocatalytic activity of Bi_(0.9)Ca_(0.1)FeO_(3)/CdS S-scheme nanocomposites显示文摘BiFeO_(3)(BFO),as a kind of narrow band-gap semiconductor material,has gradually emerged advantages in the application of photocatalysis.In this paper,Ca doped BFO nanoparticles Bi_(0.9)Ca_(0.1)FeO_(3)(BCFO)were prepared by sol-gel method.And BCFO and CdS nanocomposites with two morphologies were obtained by controlling the time of loading CdS under a low temperature liquid phase process.It is found that the band gap becomes narrower after doping Ca into BFO,which is conducive to the absorption of visible light.Among all the samples,the composite of CdS nanowires and BCFO nanoparticles obtained by reaction time of 10 min has the best photocatalytic performance.The degradation rate of Methyl Orange solutionwas 94%after 90min under visible light irradiation,whichwasmuch higher than that of pure BCFO and CdS.Furthermore,significant enhancement in the degradation rate(100%degradation in 60 min)can be achieved in poled samples after electric polarization process.The highest degradation rate is due to the promoted separation of photogenerated carriers induced by the internal polarization field and the formation of S-scheme heterostructure between BCFO and CdS.Such BCFO-CdS nanocomposites may bring new insights into designing highly efficient photocatalyst.Yaowen Zhang ZifeiWang Jiangwei Zhu Xuemin He Hongtao Xue Sanlong Li Weiwei Mao Yong Pu Xing’ao Li 2023Journal of Environmental Sciences2023,,2:0
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