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| 1 | Pt3Ag alloy wavy nanowires as highly effective electrocatalysts for ethanol oxidation reaction显示文摘Direct ethanol fuel cell(DEFC)has received tremendous research interests because of the more convenient storage and transportation of ethanol vs.compressed hydrogen.However,the electrocatalytic ethanol oxidation reaction typically requires precious metal catalysts and is plagued with relatively high over potential and low mass activity.Here we report the synthesis of Pt3Ag alloy wavy nanowires via a particle attachment mechanism in a facile solvothermal process.Transmission microscopy studies and elemental analyses show highly wavy nanowire structures with an average diameter of 4.6±1.0 nm and uniform Pt3Ag alloy formation.Electrocatalytic studies demonstrate that the resulting alloy nanowires can function as highly effective electrocatalysts for ethanol oxidation reactions(EOR)with ultrahigh specific activity of 28.0 mA/cm^2 and mass activity of 6.1 A/mg,far exceeding that of the commercial Pt/carbon samples(1.10 A/mg).The improved electrocatalytic activity may be partly attributed to partial electron transfer from Ag to Pt in the Pt3Ag alloy,which weakens CO binding and the CO poisoning effect.The one-dimensional nanowire morphology also contributes to favorable charge transport properties that are critical for extracting charge from catalytic active sites to external circuits.The chronoamperometry studies demonstrate considerably improved stability for long term operation compared with the commercial Pt/C samples,making the Pt3Ag wavy nanowires an attractive electrocatalyst for EOR. | Xiaoyang Fu Chengzhang Wan Aixin Zhang Zipeng Zhao Huaixun Huyan Xiaoqing Pan Shuaijing Du Xiangfeng Duan Yu Huang | 2020 | Nano Research2020，13，5： | 5 |
| 2 | Membrane-based air dehumidification:A comparative review on membrane contactors,separative membranes and adsorptive membranes显示文摘This review compares the different types of membrane processes for air dehumidification.Three main categories of membrane-based dehumidification are identified–membrane contactors using porous membranes with concentrated liquid desiccants,separative membranes using dense membrane morphology with a pressure gradient to drive the separation of moisture from air,and adsorptive membranes using nanofibrous membranes which adsorb and capture moisture to realise dehumidification.Drawing upon the importance of dehumidification and humidity control for urban sustainability and energy efficacy,this review critically analyses and recognizes the three unique categories of membrane-based air dehumidification technologies.Essentially,the discussion is broken into three sections-one for each category-discriminating in terms of the driving force,membrane structure and properties,and its performance indicators.Readers will notice that despite having the same objective to dehumidify air,the polymers used amongst each category differs to suit the operating requirements and optimize dehumidification performance.At the end of each section,a performance table or summary of dehumidifying membranes in its class is provided.The final section concludes with a comparative review of the three categories on membrane-based air dehumidification technologies and draw inspiration from parallel research to rationalise the potential and innovative use of promising materials in membrane fabrication for air dehumidification. | Huaixun Lim Kunli Goh Miao Tian Rong Wang | 2022 | Chinese Journal of Chemical Engineering2022，35，1： | 1 |
| 3 | Structures and electronic properties of domain walls in Bi FeO3 thin films显示文摘Domain walls(DWs)in ferroelectrics are atomically sharp and can be created;erased,and reconfigured within the same physical volume of ferroelectric matrix by external electric fields.They possess a myriad of novel properties and functionalities that are absent in the bulk of the domains,and thus could become an essential element in next-generation nanodevices based on ferroelectrics.The knowledge about the structure and properties of ferroelectric DWs not only advances the fundamental understanding of ferroelectrics,but also provides guidance for the design of ferroelectric-based devices.In this article,we provide a review of structures and properties of DWs in one of the most widely studied ferroelectric systems,BiFeO3 thin films.We correlate their conductivity and photovoltaic properties to the atomic-scale structure and dynamic behaviors of DWs. | Huaixun Huyan Linze Li Christopher Addiego Wenpei Gao Xiaoqing Pan | 2019 | National Science Review2019，6，4： | 1 |
| 4 | Adaptive fusion method of visible light and infrared images based on non-subsampled shearlet transform and fast non-negative matrix factofization 显示文摘 | KONG Weiwei YANG Lei ZHAO Huaixun | 2014 | Infrared Physics & Technology(S1350-4495)2014，67，3： | 1 |
| 5 | Improvement of radiation resistance by introducing CeO 2 in Yb-doped silicate glasses显示文摘 | Yubang Sheng Luyun Yang Huaixun Luan Zijun Liu Yang Yu Jinyan Li Nengli Dai | 2012 | Journal of Nuclear Materials (-)2012，，1： | 1 |
| 6 | On the Construction of Credibility System for Senior Talents显示文摘 | Zhang Huaixun | 2013 | 中国商界:上半月2013，，3： | 0 |
| 7 | Emergent properties at oxide interfaces controlled by ferroelectric polarization显示文摘Ferroelectric materials are characterized by the spontaneous polarization switchable by the applied fields,which can act as a“gate”to control various properties of ferroelectric/insulator interfaces.Here we review the recent studies on the modulation of oxide hetero-/homo-interfaces by ferroelectric polarization.We discuss the potential applications of recently developed four-dimensional scanning transmission electron microscopy and how it can provide insights into the fundamental understanding of ferroelectric polarization-induced phenomena and stimulate future computational studies.Finally,we give the outlook for the potentials,the challenges,and the opportunities for the contribution of materials computation to future progress in the area. | Fan Ye Yi Zhang Christopher Addiego Mingjie Xu Huaixun Huyan Xiaobing Ren Xiaoqing Pan | 2021 | npj Computational Materials2021，，1： | 0 |
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