王荣明
主要从事过渡金属及其化合物纳米材料、轻质高强金属材料等的电子显微学、谱学及相关物理问题研究。
个性化签名
- 姓名:王荣明
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学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
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学科领域:
凝聚态物理学
- 研究兴趣:主要从事过渡金属及其化合物纳米材料、轻质高强金属材料等的电子显微学、谱学及相关物理问题研究。
王荣明,北京科技大学数理学院院长。1991年和1994年毕业于北京大学物理学系,获学士和硕士学位;1997年在北京航空材料研究院获博士学位后留院工作,其间于2000年在以色列Ben-Gurion大学材料系从事博士后研究半年;2002年3月-2005年9月任北京大学物理学院副教授,并于2004.4-2005.4年赴美国加州Berkeley大学国家电镜中心从事合作研究一年;2005年10月任北京航空航天大学教授、博士生导师,2014年9月起任北京科技大学数理学院院长。
长期从事先进材料的微结构和特性相互关系研究。近年来,围绕控制生长和定量表征等材料研究的瓶颈和关键问题,突破透射电镜物镜强磁场对磁性功能材料干扰影响其定量表征的技术难点,开展磁性功能材料的表面界面精细结构结构表征和调控研究,在原子、电子层次理解材料的结构和性能相互关系,推进其在信息、能源等领域的应用。在包括NPG Asia Mater.、Phys. Rev. Lett.、Adv. Mater.、J. Am. Chem. Soc.、Angew. Chem. Int. Edit.、Nano Lett.、Nano Energy共发表SCI论文140余篇,全部论文在SCI被引用约4000次,论文引用H因子为34 [Researcher ID: B-2163-2010];在国际、全国学术会议做大会报告、Keynote报告和Invited报告30余次。曾获国家自然科学奖二等奖、教育部自然科学奖一等奖、北京市优秀博士学位论文指导教师、教育部新世纪优秀人才等,并被评为“科学中国人”(2012)年度人物。
兼任Prog. Nat. Sci. Mater. Inter.等4个国际学术期刊编委,中国材料研究学会理事,首届纳米材料与器件分会常务理事兼秘书长,国际学术会议大会副主席、秘书长、分会主席等。
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857
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成果数
22
王荣明, Pengwei Li, Weimeng Chen, Wei Liu, Zi’an Li, Yimin Cui, Anping Huang, Rongming Wang, and Chinping Chen
J. Phys. Chem. C 2010, 114, 7721–7726,-0001,():
-1年11月30日
A series of highly uniform one-dimensional Ni nanochains, with diameters ranging from 20 to 200 nm, have been synthesized by a facile, template-free, wet chemical method at diverse temperature and magnetic field. Our results indicate that the crystallite size, diameter and length of the prepared nanochains depend critically on the reaction temperature. The characteristic thermodynamic cohesive energies, ΔED and ΔEL, are obtained for the formation of the Ni nanochains. In addition, the chain length also depends on the applied field because of the Zeeman energy of the magnetic Ni nanoparticles. For the morphology control, an external field is required in order to obtain axially aligned rather than dendritic nanochains. The size-dependent magnetic properties are studied systematically. The saturation magnetization is shown to reduce inversely with the chain diameter, attributable to a core-shell structure. The thickness of the shell which encloses the ferromagnetic Ni core is determined to be about 2.3-3.4 nm.
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王荣明, Pengwei Li, Ning Wang, and Rongming Wang
Eur. J. Inorg. Chem. 2010, 2261–2265,-0001,():
-1年11月30日
In this paper, flower-, star-, and chain-like hierarchically nanostructured nickel crystals as well as [Ni(N2H4)2]Cl2 nanorods were first synthesized by a simple reduction method. This method is template-free, environmentally benign, and can be carried out at low temperature (60 °C) with high efficiency on a large scale. Investigation of the growth kinetics has proved that the crystal sizes are sensitive to the reaction temperature and reaction time. Various nickel nanostructures can be achieved by the oriented growth of preferred nickel crystal planes. The magnetic properties of the flower-like nickel nanocrystals were also characterized with the results of much enhanced coercivity (Hc) and decreased saturation magnetization (Ms).
Nickel /, Nanostructures /, Solution synthesis /, Magnetic properties
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【期刊论文】Synthesis and characterization of ZnS tetrapods and ZnO/ZnS heterostructures
王荣明, Rongming Wang, Wei Liu
Thin Solid Films 522 (2012) 40–44,-0001,():
-1年11月30日
ZnS nanomaterials at different dimensions, from nanoparticles, nanobelts to nanotetrapods have been synthesized in the same solvothermal system, which is kinetically controlled by ethylenediamine. Microscopy analysis reveals that the four arms of tetrapod are grownfromZn-terminated surfaces of an octahedral core by alternately stacking zinc blende and wurtzite structures along [111]/[0001] direction, while the ZnS nanobelts are selfassembled along [0001] direction by ultra-small wurtzite nanocrystals. These nanobelts can be transformed into their single-crystal counterparts and ZnO/ZnS heterostructures by thermal treatment. Uv–visible analysis demonstrates that the heterostructure presents a strain-induced staggered Type-II band structure. These investigation results suggest an efficient approach for phase-controlled synthesis of nanostructures in group II–VI semiconductors.
ZnS, Nanobelts, Nanotetrapods, ZnO/, ZnS heterostructure, Polarized growth
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王荣明, Yuanpeng Zhang, Wei Liu and Rongming Wang
Nanoscale, 2012, 4, 2394–2399,-0001,():
-1年11月30日
In this work, the solvent coordination molecular template effect of EN has been discussed in detail based on the microscopy analysis of the as synthesized ZnS nanostructures. As the EN concentration increases, the ZnS products evolve from symmetric NPs, 3D TPs to 1D NBs, accompanied with the microstructure transition from isotropic ZB to anisotropic WZ. The role of EN is significant in aspects of both the reaction rate control and the anisotropic growth activation due to the coordination effect between its amino groups and Zn atoms. Moreover, this modulation effect has been proved to be general for other short carbon-chain amine agents by the contrast experiments. The designed organic amine modulated solvothermal strategy could be utilized for controlled synthesis of other cubichexagonal combined II–VI nanostructures.
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【期刊论文】Well-Aligned CoPt Hollow Nanochains Synthesized in Water at Room Temperature
王荣明, Qian Sun, Shouguo Wang, Rongming Wang
J. Phys. Chem. C 2012, 116, 5352−5357,-0001,():
-1年11月30日
Synthesis and manipulation of advanced bimetallic nanomaterials via a green and low-cost wet chemical route are of great importance for the industrialization potential. Materials design integrating the synthesis of nanomaterials through an environmentally benign route with a simple manipulation method is a challenge. The CoPt hollow nanochains have been successfully synthesized in aqueous solution with shell thickness of about 5 nm and tunable length from 300 nm to 2 μm. The as-prepared CoPt hollow nanochains can be easily aligned by the external magnetic fields and can be attached onto substrates, such as silicon wafer. The synthesis strategy is characterized by room temperature reaction (300 K), low cost, and utilization of facile reagents (water as solvent). Growth kinetics investigation shows the magnetostatic interactions between Co clusters together with the spontaneous galvanic replacement between Co clusters and Pt ions are indispensable for the formation of aligned hollow nanochains. Magnetic measurements indicate that the shape anisotropy of 1D aligned nanochains plays a dominant role on the good controllable behavior.
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【期刊论文】Co2P nanostructures by thermal decomposition: phase formation and magnetic properties
王荣明, Nan Zhang, Aixian Shan, Rongming Wang* and Chinping Chen
CrystEngComm, 2012, 14, 1197–1200,-0001,():
-1年11月30日
We have synthesized firework-like Co2P nanostructures using a simple and reliable thermal decomposition route with the precursors, triphenyl phosphine and cobalt acetylacetonate, in oleylamine. The optimized reaction temperature is within a narrow window around 280 _C. The nanostructures have a firework-like morphology with nanoneedles growing out of a center core. The nanoneedles are single crystals with clean surfaces, about 200 nm in length, and a tapering tip less than 10 nm in diameter. These nanostructures exhibit Curie–Weiss PM behavior with the effective moment determined as 2.46 mB per FU. Based on the synthesis designs with detailed characterizations on the intermediates at different stages of the phase formation, the growth mechanism of the firework-like Co2P nanostructures is proposed. It is feasible to apply this method of synthesis for some of the other transition-metal phosphide nanostructures.
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【期刊论文】Magnetic anisotropy and anomalous transitions in TbMnO3 thin films
王荣明, Yimin Cui, Yufeng Tian, Aixian Shan, Chinping Chen, and Rongming Wang
Applied Physics Letters,-0001,():
-1年11月30日
TbMnO3 thin films with different crystallographic orientations were deposited epitaxially on LaAlO3 [100] and SrTiO3 [100] single crystal substrates by using pulsed laser deposition. Magnetization measurements were performed along the [110], [_110], and [001] directions of the films. Obvious magnetic anisotropy and low temperature ferromagnetism were found. Transitions at T_10, 32, 120, and 125K along different directions are observed. The susceptibility anomalies, remarkably anisotropic, are discussed on the frame of the domain wall and strain-induced distortion. Particularly, the lattice mismatch and the anisotropic thermal expansion between the films and substrates are likely responsible for the distortion behaviors.
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【期刊论文】Platinum catalyzed growth of NiPt hollow spheres with an ultrathin shell
王荣明
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-1年11月30日
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【期刊论文】Fluorescence Enhancement by Heterostructure Colloidal Photonic Crystals with Dual Stopbands
王荣明
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-1年11月30日
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【期刊论文】Platinum Catalyzed Growth of NiPt Hollow Spheres with an Ultrathin Shell
王荣明
,-0001,():
-1年11月30日
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