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Qiao

Rui Qiao

Professor

Department of Mechanical Engineering

Ph.D., University of Illinois, Urbana-Champaign, 2004
M.S., Tsinghua University, 1999
B.S., Huazhong University of Science and Technology, 1996

Fluid dynamics and heat transfer, especially micro/nanoscale fluid, ionic, and thermal transport.
Molecular, mesoscopic, continuum, and multiscale simulation of transport phenomena
Colloidal and interfacial physics and electrochemistry
Transport and interfacial phenomena in applications such as electrical energy storage, thermal management, micro- and nanofluidics, and advanced manufacturing

F. Zhang, C. Fang, and R. Qiao, "Effects of water on mica-ionic liquid", J. Phys. Chem. C, 122, 9035, 2018 full text

Y. Song, D. Johnson, R. Peng, D.K. Hensley, P.V. Bonnesen, L. Liang, J. Huang, F. Yang, F. Zhang, R. Qiao, A.P. Baddorf, T.J. Tschaplinski, N.L. Engle, M.C. Hatzell, Z. Wu, D.A. Cullen, H.M. Meyer III, B.G. Sumpter, A.J. Rondinone, "A physical catalyst for the electrolysis of nitrogen to ammonia", Sci. Adv., 4, e1700336, 2018 full text=

Z. Yu, F. Yang, S. Dai, and R. Qiao, "Structure and dynamics of polymeric canopies in nanoscale ionic materials: an electrical double layer perspective", Sci. Rep., 8, 5191, 2018 full text

W. Zhao, X. Liu, F. Yang, K. Wang, J. Bai, R. Qiao, and G. Wang, "Study of oscillating electroosmotic flows with high temporal and spatial resolution", Anal. Chem., 90, 1652, 2018 full text

C. Fang, X. Wu, F. Yang, and R. Qiao, "Flow of quasi-two dimensional water in graphene channels", J. Chem. Phys., 148, 064702, 2018 full text

F. Yang, S.M. Ali Mousavie, T.K. Oh, T. Yang, C. Farley, R.J. Bodnar, L. Niu, R. Qiao, Z. Li, "Sodium-Sulfur Flow Battery for Low-Cost Electrical Storage", Adv. Energy Mater., 1701991, 2018 full text

Z. Yu, F. Zhang, J.S. Huang, B.G. Sumpter, and R. Qiao, "Ionic Liquids-Mediated Interactions between Nanorods", J. Chem. Phys., 147, 134704, 2017 full text

S.H. Kim, C.S. Haines, N. Li, K.J. Kim, T.J. Mun, C. Choi, J. Di, Y.J. Oh, J.P. Oviedo, J. Bykova, S. Fang, N. Jiang, Z. Liu, R. Wang, P. Kumar, R. Qiao, S. Priya, K. Cho, M. Kim, M.S. Lucas, L.F. Drummy, B. Maruyama, D.Y. Lee, X. Lepró, E. Gao, D. Albarq, R. Ovalle-Robles, S.J. Kim, R.H. Baughman, "Harvesting electrical energy from carbon nanotube yarn twist", Science, 357, 773, 2017 full text

C. Fang and R. Qiao, "Surface hydration drives rapid water imbibition into strongly hydrophilic nanopores", Phys. Chem. Chem. Phys., 19, 20506, 2017 full text

H. Wu, Y. He, and R. Qiao, "Recovery of multicomponent shale gas from single nanopores", Energy & Fuels, 31, 7932, 2017 full text

M. Qin, Y. Liu, S. Luo, R. Qiao, and Z. He, "Integrated experimental and modeling evaluation of energy consumption for ammonia recovery in bioelectrochemical systems", Chem. Eng. J., 327, 924, 2017 full text

C. Fang, Z. Yu, and R. Qiao, "Impact of surface ionization on water transport and salt leakage through graphene oxide membranes", J. Phys. Chem. C, 121, 13412, 2017 full text

F. Zhang, Y. He, J.S. Huang, B.G. Sumpter, and R. Qiao, "Multicomponent gas storage in organic cage molecules", J. Phys. Chem. C, 121, 12426, 2017 full text

W. Huang, F. Yang, L. Zhu, R. Qiao and Y. Zhao, "Manipulation of magnetic nanorod clusters in liquid by non-uniform alternating magnetic fields", Soft Matter, 13, 3750, 2017 full text

Z. Yu, H. Wu, and R. Qiao, "Electrical double layers near charged nanorods in mixture electrolytes" J. Phys. Chem. C, 121, 9454, 2017 full text

W.L. Xu, C. Fang, F. Zhou, Z. Song, Q. Liu, R. Qiao, and M. Yu, "Self-assembly: a facile way of forming ultrathin, high performance graphene oxide membranes for water purification" Nano Lett., 17, 2928-2933, 2017 full text

Z. Yu, Y. He, Y. Wang, L.A. Madsen, and R. Qiao, "Molecular structure and dynamics of ionic liquids in a rigid-rod polyanion-based ion gel", Langmuir, 33, 322, 2017, full text

F. Yang, M. Manjare, Y. Zhao, and R. Qiao, "On the peculiar bubble formation, growth, and collapse behaviors in catalytic micromotor systems", Microfluid. Nanofluid., 21, 6, 2017, full text

H. Wu, Y. He, and R. Qiao, "Superdiffusive gas recovery from nanopores", Phys. Rev. Fluids, 1, 074101, 2016, full text

S. Kondrat, A.A. Kornyshev, and R. Qiao, "Two tributaries of the electric double layer", J. Phys. Cond. Matter, 28, 460301, 2016, full text

F. Zhang, F. Yang, J.S. Huang, B.G. Sumpter, and R. Qiao, "Thermodynamics and kinetics of gas storage in porous liquids", J. Phys. Chem. B, 120, 7195, 2016, full text

Y. He, Y. Liu, B. Yang, and R. Qiao, "Pathway and energetics of the thermally-induced structural changes in microemulsions", Appl. Therm. Eng., 108, 449, 2016, full text

F. Yang, S. Qian, Y. Zhao, and R. Qiao, "Self-diffusiophoresis of Janus catalytic micromotors in confined geometries", Langmuir, 32, 5580, 2016, full text

Y. Liu, M. Qin , S. Luo , Z. He, and R. Qiao, "Understanding ammonium transport in bioelectro-chemical systems toward its recovery", Sci. Rep., 6, 22547, 2016, full text

X. Jiang, Y. Liu, and R. Qiao, "Current rectification for transport of room-temperature ionic liquids through conical nanopores", J. Phys. Chem. C, 120, 4629, 2016, full text

Y. He, R. Qiao, J. Vatamanu, O. Borodin, D. Bedrov, J.S. Huang, and B.G. Sumpter, "Importance of ion packing on the dynamics of ionic liquids during micropore charging", J. Phys. Chem. Lett., 7, 36, 2016, full tex

M. Manjare, F.C. Yang, R. Qiao, and Y.P. Zhao, "Marangoni Flow Induced Collective Motion of Catalytic Micromotors", J. Phys. Chem. C, 119, 28361, 2015, full text

F. Cao, Y. Liu, J. Xu, Y. He, B. Hammouda, R. Qiao, and B. Yang "Probing nanoscale thermal transport in surfactant solutions", Sci. Rep., 5, 16040, 2015, full text

Y. Liu, C. Hu, J.S. Huang, B.G. Sumpter, and Rui Qiao, "Tuning interfacial thermal conductance of graphene embedded in soft materials by vacancy defects", J. Chem. Phys., 12, 244703, 2015, full text

Y. He, J.S. Huang, B.G. Sumpter, A.A. Kornyshev, and R. Qiao, "Dynamic charge storage in ionic liquids-filled nanopores: insight from a computational cyclic voltammetry study", J. Phys. Chem. Lett., 6, 22, 2015, full text

P. He, Y. Liu, and R. Qiao, "Fluid dynamics of the droplet impact processes in cell printing", Microfluid. Nanofluid., 18, 569, 2015, full text

G. Feng, X. Jiang, R. Qiao and A.A. Kornyshev, "Water in ionic liquids at electrified interfaces: the anatomy of electrosorption", ACS Nano, 8, 11685, 2014", full text

Y. Liu, S. Huxtable, B. Yang, B.G. Sumpter, and R. Qiao, "Nonlocal thermal transport across embedded few-layer graphene sheets", J. Phys. Cond. Matt. (Fast Track Communications), 26, 502101, 2014, full tex

A.A. Kornyshev and R. Qiao, "Three dimensional double layers", J. Phys. Chem. C, 118, 18285, 2014, full text

 

Y. Liu, J.S. Huang, B. Yang, B.G. Sumpter, and R. Qiao, "Duality of the interfacial thermal conductance in graphene-based nanocomposites", Carbon, 75, 169, 2014, full text

X. Jiang, J.S. Huang, H. Zhao, B.G. Sumpter, and R. Qiao, "Dynamics of electrical double layer formation in room-temperature ionic liquids under constant-current charging conditions", J. Phys. Cond. Matt., 26, 284109, 2014, full text

S. Kondrat, P. Wu, R. Qiao, and A.A. Kornyshev, "Accelerating charging dynamics in subnanometre pores", Nature Mater., 13, 387, 2014, full text

Xikai Jiang, J.S. Huang, B.G. Sumpter, and R. Qiao, "Electro-induced dewetting and concomitant ionic current avalanche in nanopores", J. Phys. Chem. Lett., 4, 3120, 2013, full text

P. Wu, J.S. Huang, V. Meunier, B.G. Sumpter, and R. Qiao, "Voltage dependent charge storage modes and capacity in sub-nanometer pores", J. Phys. Chem. Lett., 3, 1732, 2012, full text

X.K. Jiang and R. Qiao, "Electrokinetic transport in room-temperature ionic liquids: amplification by short-wavelength hydrodynamics", J. Phys. Chem. C, 116, 1133, 2012 full text

P. Wu, J.S. Huang, V. Meunier, B.G. Sumpter, and R. Qiao, "Complex capacitance scaling in ionic liquids-filled nanopores", ACS Nano, 5, 9044, 2011, full text

P. Wu and R. Qiao, "Physical origins of apparently enhanced viscosity of interfacial fluids in electrokinetic transport", Phys. Fluids, 23, 072005, 2011, full text

G. Feng, J.S. Huang, B.G. Sumpter, V. Meunier, and R. Qiao, "A 'counter-charge layer in generalized solvents' framework for electrical double layers in neat ionic liquids and hybrid electrolytes ", Phys. Chem. Chem. Phys., 13, 14723, 2011, full text

P. He and R. Qiao, "A Full-Eulerian Solid Level Set Method for Simulation of Fluid-Structure Interactions", Microfluid. Nanofluid., 11, 557, 2011, full text

C. Kuang, R. Qiao, and G. Wang, "Ultrafast measurement of transient electroosmostic flow in microfluidics", Microfluid. Nanofluid., 11, 353, 2011, full text

G. Feng, R. Qiao, J.S. Huang, S. Dai, B. G. Sumpter, V. Meunier, "The importance of ion size and electrode curvature on electrical double layers in ionic liquids", Phys. Chem. Chem. Phys., 13, 1152, 2011, full text

G. Feng, R. Qiao, J.S. Huang, B.G. Sumpter and V. Meunier, "Atomistic insight on the charging energetics in sub-nanometer pore supercapacitors", J. Phys. Chem. C, 114, 18012, 2010, full text

J.S. Huang, R. Qiao, B.G. Sumpter and V. Meunier, "Effect of diffuse layer and pore shapes in mesoporous carbon ", J. Mat. Res., 25, 1469, 2010, full text

G. Feng, R. Qiao, J.S. Huang, B.G. Sumpter and V. Meunier, "Ion distribution in electrified micropores and its role in the anomalous enhancement of capacitance", ACS Nano, 4, 2382, 2010, full text

G. Feng, J.S. Huang, B. G. Sumpter, V. Meunier and R. Qiao, "Structure and dynamics of electrical double layers in organic electrolytes", Phys. Chem. Chem. Phys., 12, 5468, 2010, full text

C. Cagle, G. Feng, R. Qiao, J.S. Huang, B.G. Sumpter and V. Meunier, "Structure and charging kinetics of electrical double layers at large electrode voltages", Microfluid. Nanofluid., 8, 1613, 2010, full text

G. Feng, J.S. Zhang and R. Qiao, "Microstructure and capacitance of the electrical double layers at the interface of ionic liquids and planar electrodes", J. Phys. Chem. C, 113, 4549, 2009, full text

Y.G. Sun and R. Qiao, "Facile tuning of superhydrophobic states with Ag nanoplates", Nano Research, 1, 292, 2008, full text

P. He and R. Qiao, "Self-consistent fluctuating hydrodynamics simulations of thermal transport in nanoparticle suspensions", J. Appl. Phys., 103, 094305, 2008, full text

R. Qiao and P. He, "Mapping of dissipative particle dynamics in fluctuating hydrodynamics simulations", J. Chem. Phys., 128, 126101, 2008, full text

M. Grujicica, B. Pandurangana, R. Qiao, B.A. Cheeseman, W.N. Roy, R.R. Skaggs, R. Gupta, "Parameterization of the porous-material model for sand with different levels of water saturation", Soil Dynamics and Earthquake Engineering, 28, 20, 2008, full text

R. Qiao and P. He, "Simulation of heat conduction in nanocomposite using energy-conserving dissipative particle dynamics", Mol. Simu., 33, 677, 2007, full text

 

P.C. Ke and R. Qiao, "Carbon nanomaterials in biological systems", J. Phys.: Cond. Matt., 19, 373101, 2007, full text , selected as one of the top 2007 papers in J. Phys.

R. Qiao and P. He, "Modulation of electroosmotic flow by neutral polymers", Langmuir, 23, 5810, 2007, full te

R. Qiao, A.P. Robert, A.S. Mount, S.J. Klaine and P.C. Ke, "Translocation of C60 and its derivatives across a lipid bilayer", Nano Lett., 7, 614, 2007, full text

R. Qiao, "Effects of molecular level surface roughness on electroosmotic flow", Microfluid. Nanofluid., 3, 33, 2007, full text

R. Qiao and P.C. Ke, "Lipid-carbon nanotube self-assembly in aqueous solution", J. Am. Chem. Soc., 128, 13656, 2006, full text

R. Qiao, "Control of electroosmotic flow by polymer coating: effects of the electrical double layer", Langmuir, 22, 7096, 2006, full text

R. Qiao, J. G. Georgiadis and N.R. Aluru, "Differential Ion transport induced electroosmosis and internal recirculation in Heterogeneous Osmosis Membranes", Nano Lett., Vol. 6, 995, 2006 full text

R. Qiao and N.R. Aluru, "Scaling of electrokinetic transport in nanometer channels", Langmuir, Vol. 21, p8972, 2005

C. Ho, R. Qiao, J.B. Heng, A. Chatterjee, R.J. Timp, N.R. Aluru and G. Timp, "Electrolytic transport through a synthetic nanometer-diameter pore", Proceedings of the National Academy of Sciences, Vol. 102, p10445, 2005

R. Qiao and N.R. Aluru, "Surface-charge-induced asymmetric electrokinetic transport in confined silicon nanochannels", Applied Physics Letters, Vol 86, 143105, 2005

R. Qiao and N.R. Aluru, "Atomistic simulation of KCl transport in charged silicon nanochannels: interfacial effects", Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2005

R. Qiao and N.R. Aluru, "Multiscale simulation of electroosmotic flow using embedding techniques", International Journal of Multiscale Computational Engineering, Vol. 2, p173, 2004

R. Qiao and N.R. Aluru, "Charge inversion and flow reversal in nanochannel electroosmotic flow", Physical Review Letters, Vol. 92, 198301, 2004

R. Qiao and N.R. Aluru, "Atypical dependence of electroosmotic transport on surface charge in a single-wall carbon nanotube", Nano Letters, Vol. 3, p1013, 2003

R. Qiao and N.R. Aluru, "Ion concentrations and velocity profiles in nanochannel electroosmotic flows", Journal of Chemical Physics, Vol. 118, p4692, 2003

R. Qiao and N.R. Aluru, "Transient analysis of electro-osmotic transport by a reduced-order modeling approach", International Journal for Numerical Methods in Engineering, Vol. 56, p1023, 2003

R. Qiao and N.R. Aluru, "Dispersion control in nano-channel systems by localized zeta-potential variations", Sensors and Actuators A: Physical, Vol. 104, p268, 200

R. Qiao and N.R. Aluru, "A compact model for electroosmotic flows in microfluidic devices", Journal of Micromechanics and Microengineering, Vol. 12, p625, 2002

M.J. Mitchell, R. Qiao and N.R. Aluru, "Meshless analysis of steady-state electro-osmotic transport", Journal of Microelectromechanical Systems, Vol. 9, p435, 2000

R. Qiao, J.F. Lv, Q. Liu, X.A. Wu and G.X. Yue, "Modeling of sulfur retention in circulating fluidized bed coal combustors", Tsinghua Science and Technology, Vol. 6, p314, 2001

X.Z. Jin, J.F. Lv, R. Qiao and G.X. Yue,"Experimental and theoretical investigation of the combustion in circulating fluidized bed combustors", Clean Coal Technology (in Chinese), Vol.5, p26, 1999

 

 

 

ME2124-Introduction of Thermal and Fluid Engineering

Basics of thermodynamics, fluid mechanics, and heat transfer. Fluid and thermal properties of materials. Ideal gas equation of state. First law of thermodynamics in closed systems. Transient heat transfer. First law of thermodynamics in open systems. Fluid mechanics balances, open systems. Emphasis on applications in all topic areas.

ME3404-Fluid Mechanics

Comprehensive first course in basic and applied fluid mechanics. Fluid properties, statics, kinematics, and dynamics. Euler's and Bernoulli's equations. Hydrodynamics. Dimensional analysis and similitude. Real fluids, laminar and turbulent flows. Boundary layer model and approximate analysis.

ME5314-Convective Heat and Mass Transfer

Principles of convection. Analysis of heat transfer for internal and external flows; laminar and turbulent boundary layer theories; forced and natural convection. Analysis using similarity transformations, integral solutions and numerical methods.

 

Email: ruiqiao@vt.edu

Phone: (540) 231-7199

Office: 122 Randolph Hall

Mail Code: (0710)