A5060242442- Advanced battery technologies research
- Chemical Looping and Thermochemical Processes
- Membrane Separation and Gas Transport
- Fuel Cells and Related Materials
- Industrial Gas Emission Control
- Covalent Organic Framework Applications
- Advanced Battery Materials and Technologies
- Oil, Gas, and Environmental Issues
- Supercapacitor Materials and Fabrication
- Metal-Organic Frameworks: Synthesis and Applications
- Carbon dioxide utilization in catalysis
- Advanced Battery Technologies Research
- Membrane Separation Technologies
- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- biodegradable polymer synthesis and properties
- Membrane-based Ion Separation Techniques
- Thermochemical Biomass Conversion Processes
- Advancements in Battery Materials
- Synthetic Organic Chemistry Methods
- Layered Double Hydroxides Synthesis and Applications
- Zeolite Catalysis and Synthesis
- Ionic liquids properties and applications
- Electrochemical Analysis and Applications
- Coal and Its By-products
Imperial College London
2016-2025
Wuhan University of Technology
2024-2025
Laboratoire de Chimie des Polymères Organiques
2019-2023
South China University of Technology
2016-2023
Institut Polytechnique de Bordeaux
2020-2023
Université de Bordeaux
2020-2023
Centre National de la Recherche Scientifique
2020-2023
Transnational Press London
2020
University of Cambridge
2010-2016
Lanzhou University
2015
As synthesised ZIF-8 nanoparticles (size ∼ 60 nm and specific surface area 1300–1600 m2 g−1) were directly incorporated into a model polymer matrix (Matrimid® 5218) by solution mixing. This produces flexible transparent membranes with excellent dispersion of (up to loadings 30 wt%) good adhesion within the matrix, as confirmed scanning electron microscopy, dynamic mechanical thermal analysis gas sorption studies. Pure (H2, CO2, O2, N2 CH4) permeation tests showed enhanced permeability mixed...
Porous organic cage molecules are fabricated into thin films and molecular-sieving membranes. Cage solution cast on various substrates to form amorphous films, with the structures tuned by tailoring chemistry processing conditions. For first time, uniform pinhole-free microporous formed demonstrated as membranes for selective gas separation.
Membranes which allow fast and selective transport of protons cations are required for a wide range electrochemical energy conversion storage devices, such as proton-exchange membrane (PEM) fuel cells (PEMFCs) redox flow batteries (RFBs). Herein we report new approach to designing solution-processable ion-selective polymer membranes with both intrinsic microporosity ion-conductive functionality. Polymers synthesized rigid contorted backbones, incorporate hydrophobic fluorinated hydrophilic...
Redox flow batteries using aqueous organic-based electrolytes are promising candidates for developing cost-effective grid-scale energy storage devices. However, a significant drawback of these is the cross-mixing active species through membrane, which causes battery performance degradation. To overcome this issue, here we report size-selective ion-exchange membranes prepared by sulfonation spirobifluorene-based microporous polymer and demonstrate their efficient ion sieving functions in...
Abstract Ion-conducting polymer membranes are essential in many separation processes and electrochemical devices, including electrodialysis 1 , redox flow batteries 2 fuel cells 3 electrolysers 4,5 . Controlling ion transport selectivity these largely hinges on the manipulation of pore size. Although membrane structures can be designed dry state 6 they redefined upon hydration owing to swelling electrolyte solutions. Strategies control a deeper understanding structure evolution vital for...
Abstract Membrane-based separation processes hold great promise for sustainable extraction of lithium from brines the rapidly expanding electric vehicle industry and renewable energy storage. However, it remains challenging to develop high-selectivity membranes that can be upscaled industrial processes. Here we report solution-processable polymer with subnanometre pores excellent ion selectivity in electrodialysis extraction. Polymers intrinsic microporosity incorporated hydrophilic...
Chemical-looping combustion of biomass was carried out in a 10 kWth reactor with iron oxide as an oxygen carrier. A total 30 h test achieved the same batch The effect fuel temperature on gas composition and air reactor, proportion carbon reacting conversion to CO2 experimentally investigated. results showed that CO production from gasification more dependent than oxidation increase produced higher for by oxide. Although decreased temperature, there substantial reactor. X-ray diffraction...
In recent years, organometal halide perovskite materials have attracted significant research interest in the field of optoelectronics. Here, we introduce a simple and low-temperature route for formation self-assembled nanocrystals solid organic matrix. We demonstrate that size photoluminescence peak can be tuned by varying concentration matrix material. The physical origin blue shift nanocrystals’ emission compared to its bulk phase is also discussed.
Chemical looping combustion (CLC) is a novel technology that involves cyclic reduction and oxidation of oxygen storage materials to provide for the fuels CO2 H2O, whilst giving pure stream suitable sequestration or utilisation. Here, we report method preparing from layered double hydroxides (LDHs) precursors demonstrate their applications in CLC process. The LDHs precursor enables homogeneous mixing elements at molecular level, high degree dispersion high-loading active metal oxide support...
Redox flow batteries (RFBs) based on aqueous organic electrolytes are a promising technology for safe and cost-effective large-scale electrical energy storage. Membrane separators key component in RFBs, allowing fast conduction of charge-carrier ions but minimizing the cross-over redox-active species. Here, we report molecular engineering amidoxime-functionalized Polymers Intrinsic Microporosity (AO-PIMs) by tuning their polymer chain topology pore architecture to optimize membrane ion...
Redox flow batteries (RFBs) have great potential for long-duration grid-scale energy storage. Ion-conducting membranes are a crucial component in RFBs, allowing charge-carrying ions to transport while preventing the cross-mixing of redox couples. Commercial Nafion widely used but their unsatisfactory ionic and molecular selectivity, as well high costs, limit performance widespread deployment this technology. To extend longevity reduce cost RFB systems, inexpensive ion-selective that...
Abstract Redox flow batteries (RFBs) are promising for large‐scale long‐duration energy storage owing to their inherent safety, decoupled power and energy, high efficiency, longevity. Membranes constitute an important component that affects mass transport processes in RFBs, including ion transport, redox‐species crossover, the net volumetric transfer of supporting electrolytes. Hydrophilic microporous polymers, such as polymers intrinsic microporosity (PIM), demonstrated next‐generation...
Chemical-looping combustion (CLC) is a promising technology for gaseous and solid fuel with efficient use of energy inherent separation CO2. The concept coal-fueled CLC system using calcium sulfate (CaSO4) as oxygen carrier proposed in this study. Reduction tests CaSO4 simulated coal gas were performed laboratory-scale fluidized bed reactor the temperature range 890−950 °C. A high concentration CO2 was obtained at initial reduction period. exhibited reactivity initially decreased gradually...
Incorporating nanofillers into thermal-oxidatively crosslinked polymers of intrinsic microporosity (PIM-1) generates highly permeable and selective molecular sieves for gas separations.