A5027682028- Fuel Cells and Related Materials
- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Atmospheric Ozone and Climate
- Membrane-based Ion Separation Techniques
- Advanced battery technologies research
- Advanced Battery Technologies Research
- Electrocatalysts for Energy Conversion
- Advancements in Solid Oxide Fuel Cells
- Advanced Battery Materials and Technologies
- Atmospheric and Environmental Gas Dynamics
- Air Quality Monitoring and Forecasting
- Conducting polymers and applications
- Intergenerational Family Dynamics and Caregiving
- Educational Reforms and Innovations
- Air Quality and Health Impacts
- Nanopore and Nanochannel Transport Studies
- Vehicle emissions and performance
- Microfluidic and Capillary Electrophoresis Applications
- Membrane Separation Technologies
- Green IT and Sustainability
- Enhanced Oil Recovery Techniques
- Demographic Trends and Gender Preferences
China Meteorological Administration
2014-2024
Nanjing University of Information Science and Technology
2013-2024
Tianjin University of Commerce
2023
Lund University
2019-2021
Hanyang University
2010-2016
Government of the Republic of Korea
2016
Nanjing University
2010
A new bisphenol monomer, 9,9-bis(3,5-dimethoxy-4-hydroxyphenyl) fluorene, was synthesized and polymerized to form fluorene-based poly(arylene ether sulfone) copolymers containing tetra-methoxy groups (MPAES). After converting the methoxy group reactive hydroxyl group, respective side-chain type sulfonated (SPAES) were obtained by sulfobutylation. The polymers characterized 1H NMR, thermogravimetric analysis (TGA), water uptake, proton methanol transport for fuel cell applications. These...
Sulfonated poly(arylene sulfide sulfone nitrile)s (SN) were synthesized to investigate the effects of naphthalene units in polymer backbone on membrane properties. The small and planar main chain reduced interdomain distance, as confirmed by molecular simulations small-angle X-ray scattering patterns. SN membranes exhibited excellent chemical mechanical properties, better than those their phenylene counterpart (SP). In particular, water uptake swelling ratio much lower SP membranes....
We present a new approach of morphological transformation for effective proton transport within ionomers, even at partially hydrated states. Highly sulfonated poly(phenylene sulfide nitrile) (XESPSN) random network copolymers were synthesized as alternatives to state-of-the-art perfluorinated polymers such Nafion®. A combination thermal annealing and cross-linking, which was conducted 250 °C by simple trimerisation ethynyl groups the chain termini, results in transformation. The resulting...
ABSTRACT In the present study, characterization of columnar aerosol optical properties and classifying major types was investigated at an urban–industrial city, Nanjing in Yangtze River Delta ( YRD ) region over East China using simultaneous data sets retrieved from MODerate resolution Imaging Spectroradiometer MODIS Ozone Monitoring Instrument OMI sensors during 2004–2015. A notable spatiotemporal heterogeneity observed aerosols on seasonal scale China. Aerosol depth 550 nm AOD exhibited...
A new fluorene-based bisphenol monomer containing two pendant phenyl groups, 9,9-bis(3-phenyl-4-hydroxy)phenyl-fluorene, was readily synthesized in high yield by a one-step reaction from inexpensive starting materials. series of poly(ether sulfone)s with clustered sulfonic acid groups prepared for fuel cell applications polycondensation the bis(4-hydroxyphenyl)sulfone and bis(4-fluorophenyl)sulfone, followed sulfonation exclusively on fluorene rings rings, using concentrated sulfuric at room...
Thermally rearranged polybenzoxazole-<italic>co</italic>-imide (TR-PBOI) membranes exhibited excellent flux (80 kg m<sup>2</sup> h<sup>−1</sup>) and salt rejection (>99.99%) over more than 186 hours as well potential for use in membrane crystallization.
Two series of random sulfonated poly(benzothiazole-co-benzimidazole) polymers (sPBT-BI) with 70% and 60% degree sulfonation were evaluated as proton exchange membranes. sPBT was also prepared for a comparative study. The mechanical properties sPBT-BI greatly enhanced by incorporation benzimidazole (BI); sPBT-BI70-10 showed tensile strength 125 MPa elongation at break 38.9%, an increase 56.5% 145%, respectively, compared sPBT. solubility, dimensional stability, thermal properties, oxidative...
We report on the straightforward metal-free synthesis of poly(p-terphenyl perfluorophenylsulfonic acid)s by efficient superacid-catalyzed Friedel-Crafts polycondensations commercially available perfluoroacetophenone and p-terphenyl, followed sulfonation pendant pentafluorophenyl groups via a selective quantitative thiolation-oxidation procedure. The stiff well-defined polymer structure with precisely sequenced highly acidic units induces ionic clustering, restricted water uptake swelling,...
Phosphonated aromatic polymers show several important advantages as proton exchange membranes (PEMs), including high thermal and chemical stability. However, the conductivity generally needs to be significantly enhanced for most electrochemical applications. Here, we have prepared a series poly(p-terphenyl perfluoroalkylene)s functionalized with highly acidic perfluorophenylphosphonic acid by first carrying out triflic mediated polyhydroxylations involving p-terphenyl,...
In the present study, we examined spatial and temporal variations in aerosol optical depth (AOD) at 550 nm its relationship with various cloud parameters derived from Moderate resolution Imaging Spectroradiometer (MODIS) sensor onboard Terra satellite. The data have been analyzed for period of 10-years between March 2003 February 2013 over 12 major cities China. results revealed that high AOD noticed low latitude regions influenced anthropogenic activities observed altitude mountainous...