徐立强
氮化物(如氮化硼),碳材料(包括碳化物),硼化物等。
个性化签名
- 姓名:徐立强
- 目前身份:
- 担任导师情况:
- 学位:
-
学术头衔:
- 职称:-
-
学科领域:
材料科学
- 研究兴趣:氮化物(如氮化硼),碳材料(包括碳化物),硼化物等。
徐立强,男,籍贯山东省即墨市, 现为山东大学化学与化工学院教授,博士生导师。每年承担硕士研究生《结晶化学》专业课、博士生《无机化学前沿领域概论课》 、本科生《结晶化学》 及《无机及分析化学实验》课的教学任务。 近年来一直致力于新型高性能锂离子二次电池正负极电极材料、新型催化剂相关材料及新型电化学超级电容器材料的新颖和普适的制备方法探索、宏量化制备、结构与性能调控及其实际应用等,在上述相关研究领域近年来在Adv. Mater.、Nano Research、Chemistry - A European Journal 、Journal of Power Sources 、 J. Phys. Chem., J. Mater.Chem.等国际刊物上发表以本人为第一作者(或通讯作者)的SCI收录论文50余篇;所有论文迄今共被他引1100余次;获授权国家发明专利11项。 作为项目负责人已主持完成国家自然科学基金2项、教育部博士点新青年教师基金1项和应用课题1项,目前主持国家自然科学基金面上项目1项、此外参与国家“973”项目2项;以本人为第一作者或通讯作者的综述文章“纳米材料化学制备的新技术、新方法研究”、“Inorganic chemical reactions in organic systems”、“Recent development of the synthesis and engineering applications of one-dimensional BN nanomaterials、”Synthesis, properties and applications of nanoscale nitrides, borides and Carbides“分别被收录在《纳米材料与技术应用进展-第四届全国纳米材料会议论文集》、《Trends in inorganic chemical reactions》、《Journal of Nanomaterials》及《Nanoscale》 上。
-
主页访问
7110
-
关注数
0
-
成果阅读
889
-
成果数
15
徐立强, Meng Wang, MenghuaLi, LiqiangXu, * Liancheng Wang, Zhicheng Ju
,-0001,():
-1年11月30日
-
77浏览
-
0点赞
-
0收藏
-
0分享
-
187下载
-
0评论
-
引用
【期刊论文】Thermal-induced shape evolution from uniform triangular to hexagonal r-BN nanoplates†
徐立强, Menghua Li, Liqiang Xu, * Changhui Sun, Zhicheng Ju and Yitai Qian
J. Mater. Chem., 2009, 19, 8086-8091,-0001,():
-1年11月30日
The shape evolution from uniform triangular boron nitride nanoplates of rhombohedral phase (r-BN) to hexagonal r-BN nanoplates was achieved through a simple calcination process in flowing N2 at 1000℃ for 8 h. The average thickness of the triangular and hexagonal r-BN nanoplates is similar (~50nm), while their average edge sizes are 360 and 320nm, and their intense emission bands are centered at 316 and 297nm (λex=200nm), respectively. TGA analysis results reveal that hexagonal r-BN nanoplates have superior thermal stability compared with the triangular nanoplates especially above 800℃ under ambient atmosphere. The possible mechanism of the thermally induced conversion from triangular to hexagonal r-BN nanoplates is discussed.
-
71浏览
-
0点赞
-
0收藏
-
0分享
-
186下载
-
0评论
-
引用
【期刊论文】Thermal-induced shape evolution from uniform triangular to hexagonal r-BN nanoplates†
徐立强, Menghua Li, Liqiang Xu, * Changhui Sun, Zhicheng Ju and Yitai Qian
J. Mater. Chem., 2009, 19, 8086-8091,-0001,():
-1年11月30日
The shape evolution from uniform triangular boron nitride nanoplates of rhombohedral phase (r-BN) to hexagonal r-BN nanoplates was achieved through a simple calcination process in flowing N2 at 1000℃ for 8h. The average thickness of the triangular and hexagonal r-BN nanoplates is similar (~50nm), while their average edge sizes are 360 and 320 nm, and their intense emission bands are centered at 316 and 297 nm (lex ¼ 200 nm), respectively. TGA analysis results reveal that hexagonal r-BN nanoplates have superior thermal stability compared with the triangular nanoplates especially above 800℃ under ambient atmosphere. The possible mechanism of the thermally induced conversion from triangular to hexagonal r-BN nanoplates is discussed.
-
71浏览
-
0点赞
-
0收藏
-
0分享
-
184下载
-
0评论
-
引用
【期刊论文】Growth of cubic and hexagonal BN particles by using BBr3, NH4Br and metallic Na as reactants
徐立强, Menghua Li, Liqiang Xu *, Lishan Yang, Zhongchao Bai, Yitai Qian*
Diamond & Related Materials 18(2009)1421-1425,-0001,():
-1年11月30日
Hexagonal BN (h-BN) particles were prepared by using BBr3, NH4Br and metallic Na as reactants in stainless steel autoclaves at 450℃ for 24h; When the target temperature was set in the range of 500-600℃, cubic BN (c-BN) particles that co-existed with h-BN were obtained. It is found that 600℃ and a molar ratio of BBr3 to NH4Br of 1:3 are the optimal reaction parameters for the highest yield production of c-BN particles. c-BN powder with controllable content has been synthesized through a one-step method in the absence of solvents. The as-obtained samples that contain pure h-BN and the mixture of c-BN and h-BN have high thermal stabilities in ambient atmosphere below 920 and 1100℃, respectively.
Nanocrystalline Boron nitride Synthesis Characterization
-
94浏览
-
0点赞
-
0收藏
-
0分享
-
199下载
-
0评论
-
引用
【期刊论文】A facileroutetoprepareboronnitridehollowparticlesat450 1C
徐立强, Changhui Sun a, ChunliGuo a, b, XiaojianMaa, LiqiangXu a, *, YitaiQian a
Journal of Crystal Growth 311(2009)3682-3686,-0001,():
-1年11月30日
Hexagonalboronnitride(h-BN)particlesincludinghollowspheres(withaproportionof 30-40%) and nanotubes (10%)havebeensynthesizedbyusingsodiumfluoroborateandsodiumazideat450℃ for 20 h.X-raydiffraction(XRD)andhigh-resolutiontransmissionelectronmicroscopy(HRTEM)studies show thattheas-obtainedBNhollowparticlesarecrystalline.Thetotalspecificsurfaceareaofthe product calculatedfromBrunauer-Emmentt-Teller(BET)absorptionmeasurementis89.79m2/g, indicatingthatitmaybeutilizedasapromisingcandidateforhydrogenstoragecontainerorcatalyst. Thermal gravimetricanalysis(TGA)resultrevealsitsexcellentthermalstabilitybelow800℃. Its possiblegrowthmechanismandtheeffectsofreactionparameterswerealsobrieflydiscussed.
A1., Crystalmorphology A1., Nanostructures B1., Nanomaterials B1., Nitrides B2., SemiconductingIII–Vmaterials
-
39浏览
-
0点赞
-
0收藏
-
0分享
-
130下载
-
0评论
-
引用
徐立强
,-0001,():
-1年11月30日
In this study, hexagonal boron nitride (h-BN) micromeshes with high crystallinity and yield have been prepared by B2O3,Mg and NaN3 in a stainless steel autoclave at 450 C, which have diameters of up to 100 mm, thickness of 210 nm and pore size of 2.8 mmon average. A near-band edge emission at 217 nm of these micromeshes has been observed through the photoluminescence (PL) spectra. Their formation mechanism was considered through an oriented aggregation process, in which the in-situ produced MgO microparticles served as template. As B2O3 was substituted by other boron sources (such as H3BO3, Na2B4O7, NH4HB4O7 or Mg(BO2)2$H2O), h-BN micromeshes with different pore sizes could also be produced; therefore, it is a general way for the convenient synthesis of crystalline h-BN micromeshes. The as-obtained product is promising as a catalyst support, in chemical filtration and in separations under severe operating conditions
-
110浏览
-
0点赞
-
0收藏
-
0分享
-
198下载
-
0评论
-
引用
【期刊论文】High-Yield Synthesis of Rhombohedral Boron Nitride Triangular Nanoplates
徐立强
,-0001,():
-1年11月30日
-
64浏览
-
0点赞
-
0收藏
-
0分享
-
294下载
-
0评论
-
引用
【期刊论文】A Co-pyrolysis Method to Boron Nitride Nanotubes at Relative Low Temperature
徐立强
,-0001,():
-1年11月30日
-
54浏览
-
0点赞
-
0收藏
-
0分享
-
344下载
-
0评论
-
引用
徐立强
,-0001,():
-1年11月30日
-
45浏览
-
0点赞
-
0收藏
-
0分享
-
233下载
-
0评论
-
引用
【期刊论文】Fabrication and characterization of hollow spherical boron nitride powders
徐立强
,-0001,():
-1年11月30日
-
40浏览
-
0点赞
-
0收藏
-
0分享
-
378下载
-
0评论
-
引用