Junjie Niu, Ph.D.

Assistant Professor
Materials Science & Engineering

Prior to coming to the University of Wisconsin - Milwaukee, Junjie Niu was a Postdoctoral Associate in Departments of Nuclear & Materials Science and Engineering at Massachusetts Institute of Technology. He received his Ph.D. in Materials Science in 2005. He was a faculty member at Shanghai JiaoTong University (SJTU) before joining Prof. Yury Gogotsi's group at Drexel as a Postdoc. From 2011 to 2014, he moved to Prof. Ju Li's group at UPenn and MIT, developing a new lab and leading experimental research. Dr. Niu’s interdisciplinary research includes understanding fundamental science in physics/chemistry, and engineering nanomaterials in applications of energy storage, biomaterials and chemo-mechanics. In 2007, he received the young faculty award Shanghai “ChenGuang” Scholar.

Dr. Jun Jie Niu's Lab Website

Education:

  • B.S., Material Science, Shandong Institute of Light Industry, China, 2000
  • Ph.D. (Combined with M.S.), Materials Physics and Chemistry, Zhejiang University, China, 2005

Research Interests:

  • Nanoscale materials, structures and devices
  • Lithium-ion and Lithium-sulfur/air battery electrode materials
  • Nano-fluidics and nano-mechanics using a micro-manipulator system under an optical microscope and in-situ TEM techniques.
  • Catalyst supported on carbon nano-materials (Fuel cells and CO oxidation)
  • Raman SERS of intracellular micro-pipette probe (single CNT)

Publications:

  • R Singhal, Z Orynbayeva, R Sundaram, Junjie Niu, et al. Multifunctional nanotube-based cellular endoscopes. Nature Nanotechnology, 6 (2011) 57-64.
  • J Huang, Y Lo, Junjie Niu, et al. Nanowire liquid pumps. Nature Nanotechnology, 8 (2013) 277-281.
  • Junjie Niu, et al. In situ observation of random solid solution zone in LiFePO4 electrode. Nano Letters, 14 (2014) 4005-4010.
  • Junjie Niu, et al. Carbon nanotube-tipped endoscope for in situ intracellular surface-enhanced Raman spectroscopy. Small, 7 (2011) 540-545.
  • Junjie Niu, et al. Temperature and structural dependence of electrochemical activity and fuel cell performance. Acta Materialia 58 (2010) 408–414.
  • Junjie Niu, et al. Synthesis of macroscopic SiC nanowires at the gram level and their electrochemical activity with Pt loadings. Acta Materialia 57 (2009) 3084–3090.
  • Junjie Niu, et al. Scalable synthesis of sulfur nanosponge cathode for lithium-sulfur battery with improved cyclability. Journal of Materials Chemistry A, (2014) In print.
  • Junjie Niu, et al. A novel self-cleaning coating with silicon carbide nanowires. Journal of Physical Chemistry B, 113 (2009) 2909-2912.
  • Junjie Niu, et al. Gas flow dependence on hollow carbon nano-cages as catalyst support in fuel cells. Journal of Materials Chemistry, 18 (2008) 5921-5926.
  • Junjie Niu, et al. Aligned silicon carbide nanowires-crossed nets with high superhydrophobicity. Langmuir, 24 (2008) 6918-6923.
  • Junjie Niu, et al. Direct synthesis superhydrophobic silica nanowires surface by evaporating ZnS on silicon wafer. Crystal Growth & Design, 8 (2008) 2793-2798.
  • Junjie Niu, et al. Electrocatalytical activity on oxidizing hydrogen and methanol of novel carbon nanocages of different pore structures with various Pt-loadings. Journal of Physical Chemistry C, 111 (2007) 10329-10335.
  • Junjie Niu, et al. A simple route to synthesize scales of aligned single-crystalline SiC nanowires arrays with very small diameter and optical properties. Journal of Physical Chemistry B, 111 (2007) 4368-4373.
  • Junjie Niu, et al. Activated carbon nanotubes as catalyst support for fuel cells. Electrochimica Acta 53 (2008) 8058-8063.
  • J Sha, Junjie Niu, et al. Silicon nanotubes. Advanced Materials, 14 (2002) 1219-1221.
  • V Presser, L Zhang, Junjie Niu, et al. Flexible Carbide-Derived Carbon Nano-Felts with Ultra-High Power Handling Capability. Advanced Energy Materials, 1 (2011) 423-430. (Front Cover)
  • M Nagui, M Kurtoglu, V Presser, J Lu, Junjie Niu, et al. Two-dimensional nanocrystals produced by exfoliation of Ti3AlC2. Advanced Materials 23 (2011) 4248-4253. (Front Cover)
  • B Xia, J Wang, X Wang, Junjie Niu, et al. Synthesis and application of graphitic carbon with high surface area. Advanced Functional Materials, 18 (2008) 1790-1798.
  • Q Zhang, V Mochalin, I Neitzel, K Hazeli, Junjie Niu, et al. Mechanical properties and biomineralization of multifunctional nanodiamond-PLLA composites for bone tissue engineering. Biomaterials, 33 (2012) 5067-5075.
  • J Wang, L Zhang, Junjie Niu, et al. Synthesis of high surface area, water-dispersible graphitic carbon nanocages by an in situ template approach. Chemistry of Materials, 19 (2007) 453-459.
  • I Neitzel, V Mochalin, Junjie Niu, et al. Maximizing Young's modulus of aminated nanodiamond-epoxy composites measured in compression. Polymer, 53 (2012) 5965-5971.
  • Y Gao, V Presser, L Zhang, Junjie Niu, et al. High power supercapacitor electrodes based on flexible TiC-CDC nano-felts. Journal of Power Sources, 201 (2012) 368-375.
  • JK McDonough, AI Frolov, V Presser, Junjie Niu, et al. Influence of the structure of carbon onions on their electrochemical performance in supercapacitor electrodes. Carbon, 50 (2012) 3298-3309.
  • J Wang, Y Zhao, Junjie Niu, Preparation of graphitic carbon nanocages with high surface area and its application as an electrode material for fuel cells. Journal of Materials Chemistry, 17 (2007) 2251-2256.
  • C. Karwacki, P. Ganesh, P. Kent, W. Gordon, G. Peterson, Junjie Niu, Yury Gogotsi, Structure-activity relationship of Au/ZrO2 catalyst on formation of hydroxyl groups and its influence on CO oxidation. Journal of Materials Chemistry A. 1 (2013) 6051-6062.