A5022637705- Fuel Cells and Related Materials
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Membrane-based Ion Separation Techniques
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Advancements in Solid Oxide Fuel Cells
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Ionic liquids properties and applications
- Transition Metal Oxide Nanomaterials
- Advanced Manufacturing and Logistics Optimization
- Membrane Separation Technologies
- Semiconductor materials and interfaces
- Membrane Separation and Gas Transport
- Semiconductor materials and devices
- Advanced Neural Network Applications
- Gas Sensing Nanomaterials and Sensors
- Metaheuristic Optimization Algorithms Research
- 3D Shape Modeling and Analysis
- Computational Geometry and Mesh Generation
- Vanadium and Halogenation Chemistry
- Aerogels and thermal insulation
- Catalytic Processes in Materials Science
Northeastern University
2016-2025
Lund University
2024-2025
College of Medical Sciences
2015-2025
Universidad del Noreste
2014-2025
Northeastern University
2025
Chang'an University
2018-2024
Guangxi University
2022
Shenyang University
2015-2020
Technical University of Denmark
2012-2013
Mie University
1999-2002
New and emerging technologies for electrochemical energy conversion processes challenging separations have been major drivers the tremendous development of new polybenzimidazole chemistries materials in recent years.
PBFI- x %GTA membranes with twisted polymer structure and multiple hydrogen bonding sites were prepared displayed high HT-PEMFC performance.
Insertion of lithium into, or extraction from, metallic host materials can produce volume changes, which lead to rapid mechanical disintegration and deterioration Li‐alloy electrode performance. The cycling properties Sn‐based composite electrodes be significantly improved by optimizing the morphology microstructure storage matrices. Decreasing particle size powders a submicron scale using an intermetallic multiphase structure are effective ways for maintaining cycle stability. fine also...
Abstract Hexafluoropropylidene polybenzimidazole (F 6 PBI) was synthesized with excellent chemical stability and improved solubility. When doped phosphoric acid, however, the F PBI membranes showed plastic deformation at elevated temperatures. Further efforts were made to covalently crosslink chloromethyl polysulfone as a polymeric crosslinker. Comparing linear m membranes, polymer crosslinked exhibited little organo solubility, towards radical oxidation, high resistance swelling in...
Abstract High temperature operation of proton exchange membrane fuel cells under ambient pressure has been achieved by using phosphoric acid doped polybenzimidazole (PBI) membranes. To optimize the and cells, high performance polymers were synthesized molecular weights from 30 to 94 kDa with good solubility in organic solvents. Membranes fabricated systematically characterized terms oxidative stability, doping swelling, conductivity, mechanical strength cell durability. With increased...
High molecular weight polybenzimidazole (PBI) was synthesized and grafted with benzimidazole pendant groups. The high of PBI resulted in good film-forming properties superior tensile strength. With a phosphoric acid doping level (ADL) 13.1, strength 16 MPa achieved at room temperature. Grafting moieties onto the macromolecular chain introduced additional basic sites which allowed membrane to achieve higher uptakes. A molar conductivity, defined as specific conductivity each mole acid,...
Covalently cross-linked polymer membranes were fabricated from poly(aryl sulfone benzimidazole) (SO(2)PBI) and poly(vinylbenzyl chloride) (PVBCl) as electrolytes for high-temperature proton-exchange-membrane fuel cells. The cross-linking imparted organo insolubility chemical stability against radical attack to the otherwise flexible SO(2)PBI membranes. Steady phosphoric acid doping of was achieved at elevated temperatures with little swelling. acid-doped exhibited increased mechanical...
In this work, we propose a sulfonated poly (ether ether ketone) (SPEEK) composite proton-conductive membrane based on 3-(1-hydro-imidazolium-3-yl)-propane-1-sulfonate (Him-pS) additive to break through the trade-off between conductivity and selectivity of vanadium redox flow battery (VRFB). Specifically, Him-pS enables an oriented distribution SPEEK matrix construct highly conductive proton nanochannels throughout arising from noncovalent interaction. Moreover, "acid–base pair" effect...
New high-performance high temperature proton exchange membranes have been developed for fuel cell applications.