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4篇 您的检索式:作者名="Haiwei Bi"
    题名 作者 年代 出处 被引量
1Conversion of female germline stem cells from neonatal and prepubertal mice into pluripotent stern cells显示文摘Hu Wang Manxi Jiang Haiwei Bi Xuejin Chen Lin He Xiaoyong Li Ji Wu 2014Journal of Molecular Cell Biology2014,8,2:3
2Increasingπ-electron availability in benzene ring incorporated graphitic carbon nitride for increased photocatalytic hydrogen generation显示文摘Increasing the availability ofπ-electron in graphitic carbon nitride(g-C_(3)N_(4))can reduce the band gap and thus enhance the photocatalytic hydrogen(H_(2))generation activity upon exposure to visible light,However,such strategy has not yet been largely applied to increase the H_(2)generation of g-C_(3)N_(4).Herein,we succes s fully increased the amount ofπ-electron in g-C_(3)N_(4)by incorporatingπ-electron-rich benzene rings through copolymerization of melamine and trimesic acid in air.The incorporation of benzene rings not only extends the light absorption of g-C_(3)N_(4)to 650 nm,but also improves the electrical conductivity due to delocalization ofπelectrons in benzene rings.As a result,a 3.4 times enhancement of photocatalytic H_(2)generation was achieved from the g-C_(3)N_(4)with benzene ring incorporation in comparing with that of pristine g-C_(3)N_(4).More interestingly,H_(2)generation still occurs under irradiation of the light ofλ≥490 nm,above the absorption edge of pristine g-C_(3)N_(4)(~460 nm),illustrating the positive effectiveness of incorporated benzene rings on enhancing the H_(2)generation capacity of g-C_(3)N_(4).The present work manifests the advantages of increasingπ-conjugated electrons on designing highly active g-C_(3)N_(4)photocatalysts.Xiangang Lin Xiaojuan Hou Lixia Cui Shiqiang Zhao Hong Bi Haiwei Du Yupeng Yuan 2021Journal of Materials Science & Technology2021,,6:2
3Low-cost and low-density carbonized facial tissue supported uniform NiCo_(2)S_(4)nanotubes for high capacity flexible solid-state supercapacitors显示文摘Recently,rapid development of intelligent wearable electronic equipment has triggered great needs for flexible and lightweight portable energy storage systems.Here,we demonstrate a low-cost($0.5 m^(-2))and low density carbonized facial tissue paper(FCP)for high-conductive NiCo_(2)S_(4)nanotubes assisted novel ultra-flexible solid-state supercapacitors(SSCs).The hydrothermal synthesized FCP-900@NiCo_(2)S_(4)electrodes in this paper only have a density of 5 mg cm^(-2)and show large specific capacitance of 3115 mF cm^(-2)at 2 mA cm^(-2).Based on the high performance of FCP-900@NiCo_(2)S_(4)electrodes,the as assembled SSCs can deliver an energy density of 1.2 mWh cm^(-3),high power density of 58.16 mW cm-3.It also shows great bending-state capacitive performance with high capacitance retention after 5000 cycles,providing a new opportunity for developing high-performance flexible wearable energy storage devices.Haiwei Wu Jingxuan Bi Yiyi Li Li Wang Xiaofei Pang Chuanyin Xiong Zhijian Li 2021Journal of Materiomics2021,7,1:1
4Microwave awakening the n-π^(*) electronic transition in highly crystalline polymeric carbon nitride nanosheets for photocatalytic hydrogen generation显示文摘The n-π^(*) electronic transition in polymeric carbon nitride(PCN)can remarkably harvest visible light,which thus potentially promotes the photocatalytic hydrogen H2 generation.However,awaking the n-π^(*) lectronic transition has proven to be a grand challenge.Herein,we reported on the awakening of n-π^(*) electronic transition by microwave thermolysis of urea pellet,which yielded the PCN with absorption edge of 600 nm,near 140 nm red-shift from 460 nm of pristine PCN.The n-π^(*) electronic transition endows PCN with an increased photocata lytic H_(2) generation,with a highest H_(2) rate of 61.7μmol h^(-1) under visible light exposure,which is near 6 times higher than that by using the PCN from the thermolysis of urea pellets in an electric furnace(10.6μmol h^(-1)).Furthermore,the n-π^(*) transition in PCN leads to the longest wavelength of 535 nm that can initiate H2 generation,remarkably longer than the absorption edge of pristine PCN(460 nm).This work manifests the advantages of microwave sintering route to awaken the n-π^(*) electronic transition in PCN for an increased photocata lytic performance.Xiangang Lin Haiwei Du Daochuan Jiang Peng Zhang Zhiwu Yu Hong Bi Yupeng Yuan 2022Journal of Energy Chemistry2022,31,2:0
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