基于氮掺杂石墨烯固有的物化属性和一维中空纳米结构的性能特点，氮掺杂石墨烯一维中空纳米结构已引起广泛关注，开发有效新途径以获得系列新型氮掺杂石墨烯一维中空纳米结构，进而探索其各种新颖性能，已经成为一项极具挑战而又亟待解决的研究课题。本项目创新性地开展系列新型氮掺杂石墨烯一维中空纳米结构的构筑、性能及协同机理研究。主要研究内容：1）采用无模板化学气相反应法获得管状、同（异）质结包覆、螺旋状等新型氮掺杂石墨烯一维中空纳米结构，掌握其关键制备技术，揭示其生长、掺杂和修饰改性机理，建立相应的理论模型；2）系统研究产物形貌、微观结构、组分、氮的键合构型及掺杂量对其场发射、光致发光及电化学性能的影响规律，并结合能带理论、化学吸脱附及氧化还原等理论，诠释产物性能优化机理；3）系统探究单体系列产物的电学性能及单体螺旋状产物的力学性能，获得微尺度下不同产物原位电学性能的变化规律与机理及单体螺旋状产物的形变规律

Recently, the N-doped graphene one-dimensional nanostructures have attracted extensive attention because of the inherent physical and chemical properties of the N-doped graphene combining with the unique properties of one-dimensional hollow nanostructures. So that, developing effective new approaches for obtaining a series of novel N-doped graphene one-dimensional (1D) hollow nanostructures and exploring their various innovative properties have became a very challenging and urgent research subject. In this project, the study on the construction, properties and synergistic mechanism of a series of novel N-doped graphene 1D hollow nanostructures is innovatively carried out. Main research contents as following: 1) Novel N-doped graphene 1D hollow nanostructures with tubular shapes, homojunction (heterojunction) coatings and helical shapes are prepared via a template-free chemical vapor reaction method, and the key fabrication techniques are mastered, the growth, doping and modification mechanisms of the obtained products are elucidated and the corresponding theoretical models are established, respectively. 2) The effects of morphology, microstructure, component, nitrogen bonding configurations and doping content on the field emission, photoluminescence and electrochemical performances of the products are systematic studied, and according to band theory, chemical absorption/desorption and redox theory etc, the performances optimization mechanism of the products are interpreted. 3) Electricity property of the various monomer products and mechanics performance of the helical monomer products are investigated systematically, and the change regularity and mechanism of the electricity property of the different monomer products and the deformation rules of the helical monomer products in the microscales are obtained.