湘潭大学许国保

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许国保，男，博士，硕士生导师，2018年6月于湘潭大学取得博士学位。2018年8月就职于湘潭大学材料科学与工程学院，从事新能源材料与器件科研及教学，目前在Adv. Funct. Mater., Adv. Sci., J. Mater. Chem, A., J. Power sources., Electrochim. Acta 等国际学术杂志上发表30余篇学术论文，获得2020年湖南省“优秀博士论文”。


许国保 硕士生导师
副教授
553548163@qq.com
材料科学与工程学院


学习工作经历
2022-01 ～ 至今         湘潭大学  副教授
2018 - 09 ～ 2021-12    湘潭大学  讲师


研究方向
电极材料的微钠结构设计及机理研究


科研项目
【1】 国家自然科学基金青年项目，12002294，2021-2023.
【2】湖南省优秀创新博士后，        2021RC2099， 2021-2023.
【3】湖南省自然科学基金青年项目，2022JJ40435, 2022-2024.


主要代表性论文
[21] Zhang J, Xu G. B*. Mo-O-C Between MoS2 and Graphene Toward Accelerated Polysulfide Catalytic Conversion for Advanced Lithium-Sulfur Batteries. Advanced Science, 2022, 2201579. (SCI，JCR一区，IF:16.806)
[20] Zhang J, Xu G. B*. Hierarchically Pyridinic-Nitrogen Enriched Porous Carbon for Advanced Sodium-ion and Lithium-Sulfur Batteries：Electrochemical Performance and in situ Raman Spectroscopy Investigations  Applied Surface Science, 2022, 574: 151559. (SCI，JCR一区，IF:6.707）
[19] Li, Lun., Xu, Guobao*, Liu, Xiong., Huang, Shouji., Wei, Xiaolin.,  Yang, Liwen*. Combined high catalytic activity and polysulfide confinement in hierarchical carbon-encapsulated CoSe  hollow core-shell spheres for high-performance lithium–sulfur batteries. Journal of Power Sources, 506,(2021).  230177.（SCI，JCR一区，IF:9.127）
[18] Zhang J, Wang S, Xu G. B* Assembly of multifunctional Li4Ti5O12@ Co3O4 heterostructures for high-performance Li-ion half/full batteries[J]. Journal of Alloys and Compounds, 2021, 856: 158110. （SCI，JCR二区，IF:4.656）
[17]Guobao Xu, Xiong Liu, Shouji Huang, Lun Li, Xiaolin Wei, Juexian Cao, Liwen Yang, PK Chu,Freestanding, Hierarchical, and Porous Bilayered NaxV2O5·nH2O/rGO/CNT Composites as High-Performance Cathode Materials forNonaqueous K-Ion Batteries and Aqueous Zinc-Ion Batteries, ACS Applied Materials & Interfaces, 2020, 12(1): 706-716.（SCI，JCR一区，IF:8.456）
[16] Kong, Peng, Zhu, Ling, Li, Fengrong,  and Xu, Guobao*. "Self-Supporting Electrode Composed of SnSe Nanosheets, Thermally Treated Protein, and Reduced Graphene Oxide with Enhanced Pseudocapacitance for Advanced Sodium-Ion Batteries." ChemElectroChem 6, no. 22(2019): 5642-5650.（SCI，JCR二区，IF:3.962）
[15]Chen, Zhuo, Wu, Jun, Liu, Xiong, Xu, Guobao*,  and Yang, Liwen. "Ultrathin carbon-coated Sb2Se3 nanorods embedded in 3D hierarchical carbon matrix as binder-free anode for high-performance sodium-ion batteries." Ionics 25, no. 8(2019): 3737-3747.（SCI，JCR三区，IF:2.31）
[14]Xu, G, B, Chen, Z, Liu, X, Zhang, Y, Wei, X, L, Yang, L, W,  and Chu, Paul, K. "Simultaneous texturing and conductivity tailoring of mesoporous NaTi2(PO4)(3) nanocrystals by gadolinium doping for enhanced Na storage." Electrochimica Acta 309, (2019): 177-186. （SCI，JCR一区，IF:5.383）
[13]Xu, G.B, Yang, L.W, Wei, X.L, Ding, J.W, Zhong, J.X, Chu, P. K. MoS2-Quantum-Dot-Interspersed Li4Ti5O12 Nanosheets with Enhanced Performance for Li-and Na-Ion Batteries, Advanced Functional Materials 26 (19) (2016) 3349-3358.（SCI，JCR一区，IF:12.124）
[12] Xu, G.B, Yang, L.W, Wei, X.L, Ding, J.W, Zhong, J.X, Chu, P. K. Highly-crystalline ultrathin Li4Ti5O12 nanosheets decorated with silver nanocrystals as a high-performance anode material for lithium ion batteries, Journal of Power Sources 276  (2015) 247-254. (SCI, IF=6.395, JCR一区)
[11] Xu, G.B, Li, Z.Y, Yang, L.W, Wei, X.L, Chu, P. K. Protein-assisted Assembly of Mesoporous Nanocrystals and Carbon Nanotubes for Self-supporting High-Performance Sodium Electrodes, Journal of Materials Chemistry A  (2017) 5(6): 2749-2758.（SCI，JCR一区，IF:8.867）
[10] Xu, G.B, Yang, L.W, Wei, X.L, Ding, J.W, Zhong, J.X, Chu, P. K. Hierarchical porous nanocomposite architectures from multi-wall carbon nanotube threaded mesoporous NaTi2(PO4)3nanocrystals for high-performance sodium electrodes, Journal of Power Sources 327  (2016) 580-590.（SCI，JCR一区，IF:6.395）
[9] Xu, G.B, Yang, L.W, Wei, X.L, Ding, J.W, Zhong, J.X, Chu, P. K. Highly-crystalline ultrathin gadolinium doped and carbon-coated Li4Ti5O12 nanosheets for enhanced lithium storage, Journal of Power Sources 295  (2015) 305-313.（SCI，JCR一区，IF:6.395）
[8] Xu, G.B, Tian, Y, Wei, X.L, Yang, L.W, Chu, P. K. Free-standing electrodes composed of carbon-coated Li4Ti5O12 nanosheets and reduced graphene oxide for advanced sodium ion batteries, Journal of Power Sources 337  (2017) 180-188.（SCI，JCR一区，IF:6.395）
[7] Xu, G.B, Li, Z.Y, Wei, X.L, Yang, L.W, Chu, P. K. Monolithic Hierarchical Carbon Assemblies Embedded with Mesoporous NaTi2(PO4)3Nanocrystals for Flexible High-Performance Sodium Anodes. Electrochimica Acta, 2017. 254: p. 328-336.（SCI，JCR一区，IF:4.798）
[6] Xu, G.B, Jiang, F, Reng, Z.A, Yang, L.W. Polyhedral MnO nanocrystals anchored on reduced graphene oxide as an anode material with superior lithium storage capability, Ceramics International 41 (9) (2015) 10680-10688.（SCI，JCR二区，IF:2.986）
[5] Chen. C, Xu, G.B, Wei, X.L, Yang, L.W. A macroscopic three-dimensional tetrapod-separated graphene-like oxygenated N-doped carbon nanosheet architecture for use in supercapacitors, Journal of Materials Chemistry A 4 (25) (2016) 9900-9909.（SCI，JCR一区，IF:8.867）
[4] Wu. Z.L, Xu, G.B, Wei, X.L, Yang, L.W. Highly-crystalline lanthanide doped and carbon encapsulated Li4Ti5O12 nanosheets as an anode material for sodium ion batteries with superior electrochemical performance, Electrochimica Acta 207 (2016) 275-283.（SCI，JCR一区，IF:4.798）
[3] Liu. X, Xu, G.B, Xiao，H.P, Wei, X.L, Yang, L.W. Free-standing Hierarchical Porous Assemblies of Commercial TiO2 Nanocrystals and Multi-walled Carbon Nanotubes as High-performance Anode Materials for Sodium Ion Batteries, Electrochimica Acta 236  (2017) 33-42.（SCI，JCR一区，IF:4.798）
[2] Zhang, W.D, Xu, G.B, Ding, J.W, Yang, L.W. Ultra-long Na2V6O16·xH2O nanowires: large-scale synthesis and application in binder-free flexible cathodes for lithium ion batteries, RSC Advances 6 (7) (2016) 5161-5168.（SCI，JCR二区，IF:3.108）
[1] Tian, Y, Wu, Z.L, Xu, G.B, Yang, L.W, Zhong, J.X, Hetero-assembly of a Li4Ti5O12 nanosheet and multi-walled carbon nanotube nanocomposite for high-performance lithium and sodium ion batteries, RSC Advances 7 (6) (2017) 3293-3301.（SCI，JCR二区，IF:3.108）




发明专利
[1] 许国保, 张家玉, 杨利文, 李伦, 刘雄. 一种0D/2D异质结构复合负极材料的制备方法及其应用. ZL201911058016.7
[2] 许国保，张家玉，刘雄，杨利文。 一种氮掺杂介孔碳材料的制备方法及其应用, 2019-10-31, 中国, CN201911058018.6.
[3] 杨利文, 刘雄, 许国保, 魏晓林. 一种用于液相锌离子电池的自支撑复合薄膜及其制备方法. CN201910224121.7,field 3 22, 2019.

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近日，材料科学与工程学院许国保副教授团队在国际知名期刊《先进科学》(Advanced Science)上发表论文《Mo-O-C共价耦合的二硫化钼-碳基复合材料增强锂硫电池中多硫化物的催化转化》(Mo-O-C Between MoS2and Graphene Toward Accelerated Polysulfide Catalytic Conversion for Advanced Lithium-Sulfur Batteries)。许国保与清华大学深圳国际研究生院张祺博士、周光敏副教授为该文共同通讯作者，我校材料科学与工程学院2019级研究生张家玉为第一作者，我校为第一单位。
        锂硫电池具有比能量密度高(2600 Wh kg-1)、成本低和环境友好等特性，是非常有前景的下一代高比能电池。但锂硫电池在充放电过程中，中间产物溶解于电解液，所造成的多硫化物穿梭会导致锂硫电池产生快速的容量衰减、严重的自放电、低的库伦效率等系列问题，对其实际应用性能产生严重损害。二硫化钼/碳复合材料作为锂硫电池隔膜修饰材料，能有效吸附与催化电解液中游离的多硫化物，从而有效抑制穿梭效应。然而在协同作用下，如何发挥两种材料的最大化优势，两者的电子传导及价键耦合是关键。
        基于此，通过DFT理论计算结果，许国保证明在二硫化钼与氮掺杂碳间形成的Mo-O-C键，能有效提高二硫化钼与碳之间的电子传输，增强二硫化钼边缘位点对多硫化物液-固的双向转换的催化能力。基于理论计算结果，制备出纳米花状MoS2与3D碳基体（氮掺杂还原氧化石墨烯和碳化三聚氰胺泡沫）通过Mo-O-C键共价耦合而成的复合材料(MoS2@CF-NRGO)。3D氮掺杂碳基体具有高比表面积和优异导电性，纳米花状的MoS2有丰富的边缘活性位点，更重要的是，MoS2@CF-NRGO界面的Mo-O-C键共价耦合能疏通两者间的电子传导，进而协同增强对多硫化物的催化转化。得益于MoS2@CF-NRGO增强的电子/离子传输、对多硫化物穿梭的有效抑制和对Li2S沉积和解离的改善，MoS2@CF-NRGO修饰隔膜装配的锂硫电池展现了良好的电化学性能。