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| 1 | Recent advances in nanoporous graphene membrane for gas separation and water purification显示文摘Graphene is a one-atom-thick sheet of graphite comprising sp2-hybridized carbon atoms arranged in the hexagonal honeycomb lattices. By removing the honeycomb lattices and forming nanopores with specific geometry and size, nanoporous graphene has been demonstrated as a very high-efficiency separation membrane, due to the ultrafast molecular permeation rate for its one-atom thickness. This review focuses on the recent advances in nanoporous graphene membrane for the applications of gas separation and water purification, with a major emphasis on the molecular permeation mechanisms and the advanced fabrication methods of this state-of-the-art membrane. We highlight the advanced theoretical and experimental works and discuss the gas/water molecular transport mechanisms through the graphene nanopores accompanied with theoretical models. In addition, we summarize some representative membrane fabrication methods, covering the graphene transfer to porous substrates and the pore generation. We anticipate that this review can provide a platform for understanding the current challenges to make the conceptual membrane a reality and attracting more and more attentions from scientists and engineers. | Chengzhen Sun Boyao Wen Bofeng Bai | 2015 | Science Bulletin2015，60，21： | 8 |
| 2 | Molecular sieving through a graphene nanopore: non-equilibrium molecular dynamics simulation显示文摘Two-dimensional graphene nanopores have shown great promise as ultra-permeable molecular sieves based on their size-sieving effects. We design a nitrogen/hydrogen modified graphene nanopore and conduct a transient non-equilibrium molecular dynamics simulation on its molecular sieving effects. The distinct time-varying molecular crossing numbers show that this special nanopore can efficiently sieve CO_2 and H_2S molecules from CH_4 molecules with high selectivity. By analyzing the molecular structure and pore functionalization-related molecular orientation and permeable zone in the nanopore, density distribution in the molecular adsorption layer on the graphene surface, as well as other features, the molecular sieving mechanisms of graphene nanopores are revealed. Finally, several implications on the design of highly-efficient graphene nanopores, especially for determining the porosity and chemical functionalization, as gas separation membranes are summarized based on the identified phenomena and mechanisms. | Chengzhen Sun Bofeng Bai | 2017 | Science Bulletin2017，62，8： | 5 |
| 3 | Online recognition of the multiphase flow regime显示文摘The key reasons that the present method cannot be used to solve the industrial multi- phase flow pattern recognition are clarified firstly. The prerequisite to realize the online recognition is proposed and recognition rules for partial flow pattern are obtained based on the massive experimental data. The standard templates for every flow regime feature are calculated with self-organization cluster algorithm. The multi-sensor data fusion method is proposed to realize the online recognition of multiphase flow regime with the pressure and differential pressure signals, which overcomes the severe influence of fluid flow velocity and the oil fraction on the recognition. The online recognition method is tested in the practice, which has less than 10 percent measurement error. The method takes advantages of high confidence, good fault tolerance and less requirement of single sensor performance. | BAI BoFeng ZHANG ShaoJun ZHAO Liang ZHANG XiMin GUO LieJin | 2008 | Science China(Technological Sciences)2008，51，8： | 2 |
| 4 | Semiempirical equations of state of H_(2)O/CO_(2) binary mixtures in graphite nanoslits显示文摘The existence of confining walls limits the prediction accuracy of nanoconfined fluids using macroscopic equations of state(EOSs);moreover,appropriate EOSs for multicomponent mixture fluids in nanoconfined spaces are missing.Here,we derive the EOS of multicomponent mixture fluids confined in nanospaces at high temperatures and pressures,mainly considering the nanoconfinement effect and the competitive adsorption effect between different components.Then,the EOSs are validated through comparison with the molecular dynamics-simulated Pv T data of CO_(2)/H_(2)O mixtures in graphite nanoslits.To consider the above effects,we derive two EOSs via two modeling methods:EOS I is obtained through modification of the actual component occupation volume in the Peng-Robinson equation of state(PR EOS)by fitting the binary component interaction coefficient and the number of adsorbed molecules according to a selectivity coefficient,while EOS II is obtained by considering the decreased pressure of the fluids in PR EOS by adding an attractive term between components and walls.With the simulation results as a benchmark,the two EOSs exhibited good prediction accuracies under low CO_(2) concentrations,and generally,EOS II was more accurate than EOS I.This study fills the gap in the EOSs of nanoconfined mixture fluids,and the obtained equations can help to further describe the thermodynamic properties of confined mixture fluids. | Haoxuan Li Bin Zhao Chengzhen Sun Bofeng Bai | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，8： | 2 |
| 5 | Convective Heat Transfer in Helical Coils for Constant-Property and Variable-Property Flows with High Reynolds Numbers 显示文摘 | MAO Yufei GUO Liejin BAI Bofeng | 2010 | Frontiers of Energy and Power Engineering in China2010，4，4： | 1 |
| 6 | Mixed convective heat transfer of water in a pipe under supercritical pressure显示文摘 | XU Feng GUO Liejin BAI Bofeng | 2005 | Heat Transfer-Asian Research2005，34，8： | 1 |
| 7 | Numerical investigation of wet gas flow in Venturi meter显示文摘 | Denghui He Bofeng Bai | 2012 | Flow Measurement and Instrumentation2012，28，11： | 1 |
| 8 | Anomalous Enhancement in Thermal Conductivity ofNanofluid Induced by Solid Walls in a Nanochannel显示文摘 | SUN Chengzhen LU Wenqiang BAI Bofeng | 2011 | Applied Thermal Engineering2011，31，17： | 1 |
| 9 | A new correlation for wet gas flow rate measurement with Venturi meter based on two-phase mass flow coefficient显示文摘 | Denghui He Bofeng Bai | 2014 | Measurement2014，58，2： | 1 |
| 10 | Molec- ular Dynamics Simulation of Nanofluid's Effective Ther- mal Conductivity in High-Shear-Rate Couette Flow 显示文摘 | SUN Chengzhen LU Wenqiang BAI Bofeng | 2011 | International Journal of Heat and Mass Transfer2011，54，11： | 1 |
| 11 | Convective boiling heat transfer and two-phase flow characteristics inside a small horizontal helically coiled tubing once-through steam generator显示文摘 | Liang Zhao Liejin Guo Bofeng Bai Yucheng Hou Ximin Zhang | 2003 | International Journal of Heat and Mass Transfer2003，，25： | 1 |
| 12 | Shear-Rate Dependent Effective Thermal Conductivity of H2O+SiO2 Nanofluids显示文摘 | SUN Chengzhen LU Wenqiang BAI Bofeng | 2013 | Physics of Fluids2013，25，05： | 1 |
| 13 | Experimental study on turbulent mixing of spray droplets in crossflow显示文摘 | BAI Bofeng ZHANG Haibin LIU Li | 2009 | Experimental Thermal and Fluid Science2009，33，6： | 1 |
| 14 | Convective boiling heat transfer and twophase flow characteristics inside a small horizontal helically coiled tubing once through steam generator 显示文摘 | Zhao Liang Guo Liejin Bai Bofeng | 2003 | International Journal ofHeat and Mass Transfer2003，46，25： | 1 |
| 15 | Convective boiling heat transfer and two-phase flow characteristics inside a small horizontal heli cally coiled tubing once-through steam generator 显示文摘 | ZHAO Liang GUO Liejin BAI Bofeng | 2003 | International Journal of Heat and Mass Transfer2003，46，25： | 1 |
| 16 | Numerical Simulation of Cell Adhesion and Detachment in Microfluidics 显示文摘 | BAI Bofeng LUO Zhengyuan LU Tianjian | 2013 | Journal of Mechanics in Medicine and Biology2013，13，13： | 1 |
| 17 | Inertia Effect on Deformation of Viscoelastic Capsules in Microscale Flows 显示文摘 | BAI Bofeng LUO Zhengyuan WANG Shuqi | 2013 | Microfluidics and Nanofluidics2013，14，： | 1 |
| 18 | Experimental Study on Turbulent Mixing of Spray Droplets in Cross- flow 显示文摘 | BAI Bofeng ZHANG Haibin LIU Li | 2009 | Experimental Thermal and Fluid Science2009，33，6： | 1 |
| 19 | Nu- merical Study on Turbulent Mixing of Spray Droplets in Crossflow 显示文摘 | BAI Bofeng SUN Huijuan ZHANG Haibin | 2011 | Journal of Propulsion and Power2011，27，1： | 1 |
| 20 | A Least-Squares Solution to Nonlinear Steady-State Multi-Dimensional IHCP显示文摘ALeast-SquaresSolutiontoNonlinearSteady-StateMulti-DimensionalIHCPALeast-SquaresSolutiontoNonlinearSteady-StateMulti-Dimensio... | Bai Bofeng Guo Liejin Chen Xuejun (State Key Lab of Multiphase Flow in Power Engineering,Xi’an Jiao Tong University,Xi’an 710049,China) | 1996 | Journal of Thermal Science1996，5，1： | 0 |
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