姓名:闫德

						闫德,兰州大学物理科学与技术学院凝聚态物理专业副教授,硕士研究生导师,材料工程专业专硕导师,九三学社社员。

2018.1至今,兰州大学材料工程专业专硕导师。

2016.5至今,兰州大学凝聚态物理专业副教授。

2015.7至今,兰州大学凝聚态物理专业硕士研究生导师。主要从事MnO2 基电极材料的电极动力学弛豫过程及电极性能调控。

2010.11- 2012.12 兰州大学凝聚态物理学博士后流动站、西北轴承股份有限公司博士后工作站,博士后。博士后期间主要从事轴承滚动体在生产过程中的裂纹发生机理研究。

2009.7-2016.4 兰州大学物理科学与技术学院,讲师。主要从事MnO2基超级电容器电极材料的设计、制备与性能研究。

2004.9-2009.6 兰州大学物理科学与技术学院,凝聚态物理专业,直博生,获理学博士学位。主要从事低维锰氧化物纳米材料的制备、生长机理和应用研究。

2000.9-2004.6 兰州大学物理科学与技术学院,物理学(功能材料)专业,获理学学士学位。

目前在研项目2项。

主持国家自然科学基金青年基金1项(MnO2基三元复合超级电容器电极材料的设计、制备与机理研究),教育部中央高校基本科研业务费专项项目2项(δ-MnO2电极动力学过程的弛豫时间分布研究;优异锰酸锂电极材料的制备及机理研究),甘肃省自然科学基金项目1项(MnO2超级电容器电极材料电化学阻抗谱的动力学过程研究),甘肃省兰州市城关区科技计划项目(MnO2基超级电容器电极倍率性能调控研究)

参与国家自然科学基金面上项目2项(核壳型石墨烯-铜纳米复合体的功能化设计及其对自润滑轴承用织物衬垫在苛刻工况下耐磨延寿性能的增强研究;磁过滤等离子体制备高质量纳米尖点阵列研究),横向项目3项(白银市科技计划:纳米粉体等离子体生产技术及其产业化;企业委托开发项目:用于工业化生产纳米粉体新材料的等离子体技术及设备开发;天津市东丽区人民政府创业苗圃专项资助项目:MnO2/石墨烯/导电聚合物三元复合纳米结构电极材料的设计、制备及应用研究)。

					

						1.电极动力学弛豫过程及电极性能调控

2.超级电容器电极材料的结构设计、制备、性质及机理研究

					
						教学:《热学》、《普通物理》、《金属物理专业实验》、《力热实验》
指导研究生:指导博士生1名,硕士生3名。目前在读研究生2人。
					
						1. De Yan*, YanhongLi,Ying Liu, RenfuZhuo, BaisongGeng, Zhiguo Wu, Jun Wang, Pingyuan Ren and Pengxun Yan, Design and influence of mass ratio on supercapacitive properties of ternary electrode material reduced grapheneoxide@MnO2@poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), ElectrochimicaActa 169 (2015) 317–325.

2. Hairong Hu, Zhiguo Wu, Weibo Zhang, Huajun Li, RenfuZhuo, De Yan, Jun Wang, Pengxun Yan, Temperature-dependent growth, photoluminescence and ferromagnetic properties of Co-doped AlN hexagonal nanostructures, Materials Letters 142 (2015) 106-108.

3. Hairong Hu, Zhiguo Wu, Weibo Zhang, Huajun Li, RenfuZhuo, De Yan, Jun Wang,Pengxun Yan, Effect of Mg doping on growth and photoluminescence of AlN hexagonal nanorods, Journal of Alloys and Compounds 624 (2015) 241-246.

4. De Yan*, Yanhong Li, Ying Liu, RenfuZhuo, Zhiguo Wu, BaisongGeng, Jun Wang, Pingyuang Ren, Pengxun Yan, ZhongrongGeng, Synthesis and electrochemical properties of multilayered porous hexagonal Mn(OH)2 nanoplates as supercapacitor electrode material, Materials Letters 136 (2014) 7-10.

5. De Yan*, Ying Liu, Yanhong Li, RenfuZhuo, Zhiguo Wu, Pingyuan Ren, Shuankui Li, Jun Wang, Pengxun Yan, ZhongrongGeng, Synthesis and electrochemical properties of MnO2/rGO/PEDOT:PSS ternary composite electrode material for supercapacitors, Materials Letters 127 (2014) 53–55.

6. De Yan*, Yanhong Li, Ying Liu, RenfuZhuo, Zhiguo Wu, BaisongGeng, Jun Wang, Pingyuang Ren, Pengxun Yan, ZhongrongGeng, Hydrothermal synthesis and electrochemical properties of hexagonal hydrohausmannite plates as supercapacitor electrode material, Materials Letters 117 (2014) 62–65.

7. De Yan*, Yanhong Li, Ying Liu, RenfuZhuo, Zhiguo Wu and Jun Wang, Growth Mechanism and Morphology Control of Porous Hexagonal Plates of Hydrohausmannite Prepared by Hydrothermal Method, Applied Mechanics and Materials 513-517 (2014) 277-280.

8. Ying Liu, De Yan*, Yanhong Li, Zhiguo Wu, RenfuZhuo, Shuankui Li, Juanjuan Feng, Jun Wang, Pengxun Yan, ZhongrongGeng, Manganese dioxide nanosheet arrays grown on graphene oxide as an advanced electrode material for supercapacitors, ElectrochimicaActa 117 (2014) 528– 533.

9. RenfuZhuo, Yinong Wang, De Yan, Xiaoyong Xu, Zhiguo Wu, Temperature-induced structure and morphological transformation in SnS prepared by a chemical vapor deposition method, Applied Mechanics and Materials 513-517 (2014) 286-290.

10. RenfuZhuo, Yinong Wang, De Yan, Shuankui Li, Ying Liu, Fengyi Wang, One-step synthesis and excellent microwave absorption of hierarchical tree-like ZnO nanostructures, Materials Letters 117 (2014) 34–36.

11. Shuankui Li, ShiyongZuo, Zhiguo Wu, Ying Liu, RenfuZhuo, Juanjuan Feng, De Yan, Jun Wang, Pengxun Yan, Stannous sulfide/multi-walled carbon nanotube hybrids as high-performance anode materials of lithium-ion batteries, ElectrochimicaActa, 136 (2014) 355–362.

12. Zhiguo Wu, Weibo Zhang, Hairong Hu, ShiyongZuo, Fengyi Wang, Pengxun Yan, Jun Wang, RenfuZhuo, De Yan, Effect of temperature on growth and ultraviolet photoluminescence of Zn doped AlN nanostructures, Materials Letters 136 (2014) 95–98.

13. Huajun Li, Xu Ji, Zhiguo Wu, Hairong Hu, De Yan, RenfuZhuo, Juanjuan Feng, BaisongGeng and Pengxun Yan, Structure and optical investigation of faceted hexagonal aluminum nitride nanotube arrays, Applied Physics Express 05/2014; 7(6):065003.

14. De Yan*, Ying Liu, ZhiGuo Wu, RenFuZhuo and Jun Wang, Low-temperature Hydrothermal Synthesis and Electrochemical Properties of Birnessit-type Manganese Dioxide Nanosheets, Advanced Materials Research 800 (2013) 393-397.

15. Ying Liu, De Yan*, RenfuZhuo, Shuankui Li, Zhiguo Wu, Jun Wang, Pingyuan Ren, Pengxun Yan, ZhongrongGeng, Design, hydrothermal synthesis and electrochemical properties of porous birnessite-type manganese dioxide nanosheets on graphene as a hybrid material for supercapacitors, Journal of Power Sources 242 (2013) 78-85.

16. Shuankui Li, Zhiguo Wu, Weihua Li, Yin Liu, RenfuZhuo,De Yan,Wang Jun and Pengxun Yan, One-pot synthesis of ZnS hollow spheres via a low-temperature, template-free hydrothermal route, CrystEngComm, 15 (2013) 1571-1577.

17. 闫德,陶慧芳,郝彭,谢二庆,带支柱孔渗碳钢滚子内裂分析,轴承,2013年7期,32-35。

18. Liang Xu, Shuankui Li, ZhiguoWu, Huajun Li, De Yan, Chunyu Zhang, Pengju Zhang, Pengxun Yan, Xudong Li, Growth and field emission properties of nanotip arrays of amorphous carbon with embedded hexagonal diamond nanoparticles, Applied Physics A: Materials Science & Processing, 103 (2011) 59–65.

19. Xu Ji, Huajun Li, Zhiguo Wu, Shuang Cheng, Hairong Hu, De Yan, RenfuZhuo, Jun Wang and Pengxun Yan, Growth of AlN hexagonal oriented complex nanostructures induced by nucleus arrangement, CrystEngComm, 13 (2011) 5198-5203.

20. R.F. Zhou, X.Y. Xu, H.T. Feng, D. Yan, H.J. Li, S. Cheng, P.X. Yan, Morphology-controlled syntheses, growth mechanisms, and optical properties of ZnOnanocombs/nanotetrapods, Advanced Materials Research 97-101 (2010) 960-964.

21. D Yan, S Cheng, R F Zhuo, J T Chen, J J Feng, H T Feng, H J Li, Z G Wu, J Wang and P X Yan, Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties, Nanotechnology 20 (2009) 105706 (10pp)

22. De Yan, Pengxun Yan, Shuang Cheng, Jiangtao Chen, RenfuZhuo, Juanjuan Feng and Guang’an Zhang, Fabrication, In-Depth Characterization, and Formation Mechanism of Crystalline Porous Birnessite MnO2 Film with Amorphous Bottom Layers by Hydrothermal Method, Crystal Growth & Design 9 (1) (2009) 218–222.

23. S. Cheng, D. Yan, J. T. Chen, R. F. Zhuo, J. J. Feng, H. J. Li, H. T. Feng and P. X. Yan, Soft-Template Synthesis and Characterization of ZnO2 and ZnO Hollow Spheres, J. Phys. Chem. C 113 (31) (2009) 13630–13635.

24. H. T. Feng, R. F. Zhuo, J. T. Chen, D. Yan,J. J. Feng, H. J. Li, S. Cheng, Z. G. Wu, J. Wang, P. X. Yan, Synthesis, Characterization, and Microwave Absorption Property of the SnO2 NanowireParaffin Composites, Nanoscale Res. Lett. 4 (2009) 1452-1457.

25. R.F. Zhuo, H.T. Feng, D. Yan, J.T. Chen, J.J. Feng, J.Z. Liu, P.X. Yan, Rapid growth and photoluminescence properties of doped ZnS one-dimensional nanostructures, Journal of Crystal Growth 310 (2008) 3240– 3246.

26. R. F. Zhuo, H. T. Feng, J. T. Chen, D. Yan, J. J. Feng, H. J. Li, B. S. Geng, S. Cheng, X. Y. Xu, and P. X. Yan, Multistep Synthesis, Growth Mechanism, Optical, and Microwave Absorption Properties of ZnO Dendritic Nanostructures, J. Phys. Chem. C 112 (2008) 11767–11775.

27. Jiangtao Chen, JunWang, Fei Zhang, De Yan, GuanganZhang,RenfuZhuo and Pengxun Yan, Structure and photoluminescence property of Eu-doped SnO2 nanocrystalline powders fabricated by sol–gel calcination process, J. Phys. D: Appl. Phys. 41 (2008) 105306.

28. R. F. Zhuo, L. Qiao, H. T. Feng, J. T. Chen, D. Yan, Z. G. Wu, and P. X. Yan, Microwave absorption properties and the isotropic antenna mechanism of ZnOnanotrees, Journal of Applied Physics 104 (2008) 094101.

29. J.J. Feng, P.X. Yan, Q. Yang, J.T. Chen, D. Yan, Sn-filled Si nanotubes fabricated by the facile DC arc discharge method and their photoluminescence property, Journal of Crystal Growth 310 (2008) 4412–4416.

30. Z.R. Geng, Q.H.Lu, P.X.Yan, D.Yan, G.H.Yue, Efficient preparation of NiSi nanowires by DC ]arc discharge, Physica E 41 (2008) 185– 188.

31. R F Zhuo, H T Feng, Q Liang, J Z Liu, J T Chen, D Yan, J J Feng, H J Li, S Cheng, B S Geng, X Y Xu, J Wang, Z G Wu, P X Yan and G H Yue, Morphology-controlled synthesis, growth mechanism, optical and microwave absorption properties of ZnOnanocombs, J. Phys. D: Appl. Phys. 41 (2008) 185405.

32. J.T. Chen, F. Zhang, J. Wang, G.A. Zhang, B.B. Miao, X.Y. Fan, D. Yan, P.X. Yan, CuO nanowires synthesized by thermal oxidation route, Journal of Alloys and Compounds 454 (2008) 268–273.

33. D. Yan, P.X. Yan, G.H. Yue, J.Z. Liu, J.B. Chang, Q. Yang, D.M. Qu, Z.R. Geng, J.T. Chen, G.A. Zhang, R.F. Zhuo, Self-assembled flower-like hierarchical spheres and nanobelts of manganese oxide by hydrothermal method and morphology control of them, Chemical Physics Letters 440 (2007) 134–138.

34. D.M. Qu, P.X. Yan, J.B. Chang, D. Yan, J.Z. Liu, G.H. Yue, R.F. Zhuo, H.T. Feng, Nanowires and nanowire–nanosheet junctions of SnO2 nanostructures, Materials Letters 61 (2007) 2255–2258.

35. G.H. Yue, P.X. Yan, D. Yan, D.M. Qu, X.Y. Fan, M.X. Wang, H.T. Shang, Solvothermal route synthesis of single-crystalline a-MnO2 nanowires, Journal of Crystal Growth 294 (2006) 385–388.

36. G.H. Yue, P.X. Yan, D. Yan, J.Z. Liu, D.M. Qu, Q. Yang, X.Y. Fan, Synthesis of two-dimensional micron-sized single-crystalline ZnS thin nanosheets and their photoluminescence properties, Journal of Crystal Growth 293 (2006) 428–432.

37. G.H. Yue, P.X. Yan, D. Yan, X. Y. Fan, M. X. Wang, D. M. Qu, J. Z. Liu, Hydrothermal synthesis of single-crystal ZnS nanowires, Appl. Phys. A 84 (2006) 409–412.

38. 王明旭,岳光辉,范晓彦,闫德,闫鹏勋,杨强,Cu3N薄膜的制备及其霍尔效应研究,人工晶体学报 35 (2006) 1108-1112。

39. G. H.Yue, P. X. Yan, X.Y. Fan, M. X. Wang, D. M. Qu, D. Yan and J. Z. Liu, Characterization of the single crystalline iron sulfide nanowire arrays synthesis by pulsed electrodeposition, J. Appl. Phys. 100 (2006) 124313 1-4.

					
						2004.2-2004.6 主要参与金昌凌云纳米材料公司约束弧等离子体法生产纳米粉体设备的维修、改进工作,并对各种常见金属及金属氧化物纳米粉体的生产工艺进行了探索。

2004.9-2009.6 主要从事低维锰氧化物纳米材料的制备、生长机理和应用研究。所涉及的研究领域包括超级电容器电极材料、二次电池电极材料、微波隐身材料、自组装系统以及相关的机理及应用研究。成功制备了20多种不同形貌的锰氧化物纳米结构,对锰氧化物的生长机理有深刻了解。2007年首次提出了一个包含库仑力和微观粒子热运动两个因素的竞争机制,较合理的解释了具有分级结构的Bir-MnO2花状纳米微球的形成机理,并且机理的相关推论也在实验中得到了验证。2009年在Si基底上成功制备了Bir-MnO2纳米片阵列,并首次提出一个包含内应力的产生、积累、释放和化学变化相伴随发生的生长机理,圆满解释了在Si基底上制备Bir-MnO2纳米片阵列中观察到的各种现象。2009年制备出三维多孔海绵状氧化锰纳米结构,并研究了其微波吸收性能。相关研究成果发表在Crystal Growth & Design、Nanotechnology和Chemistry Physics Letters等高水平SCI杂志上。其中,2009年发表在Nanotechnology上的论文三个月内下载次数超过250次。编辑专门写信表示祝贺并特别提到,英国皇家物理学会(IOP)收录的所有杂志的所有论文中,只有10%的论文能产生这样的影响。

2009.7-2013.6 主要从事MnO2基超级电容器电极材料的设计、制备与性能研究。Bir-MnO2的理论容量可达1270F/g,但其导电性和稳定性差。以多年对氧化锰制备和生长机理的研究为基础,对MnO2基超级电容器电极材料进行结构设计,期望在克服单一材料的缺点并同时提高复合电极的稳定性、能量密度和功率密度。已获得国家自然科学基金青年基金资助。另外,在博士后在站期间,还从事了轴承滚动体在生产过程中的裂纹产生机理的研究,解决了西北轴承股份有限公司在轴承滚动体生产过程中大批量开裂的问题。

2013.7至今 鉴于当前对超级电容器电极材料电极过程的子过程和电极性能之间的关系研究欠缺,主要对MnO2基超级电容器电极材料的动力学子过程进行研究及对电极性能进行精确调控。相关研究成果发表在Journal of Power Sources 和ElectrochimicaActa等杂志上。