A5033206497- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Advancements in Solid Oxide Fuel Cells
- Catalytic Processes in Materials Science
- Fuel Cells and Related Materials
- Electrochemical Analysis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Electronic and Structural Properties of Oxides
- Catalysis and Oxidation Reactions
- Additive Manufacturing and 3D Printing Technologies
- Electrospun Nanofibers in Biomedical Applications
- 2D Materials and Applications
- Mine drainage and remediation techniques
- Nanomaterials and Printing Technologies
- Semiconductor materials and interfaces
- Iron oxide chemistry and applications
- Electrodeposition and Electroless Coatings
- Phosphorus and nutrient management
- Reservoir Engineering and Simulation Methods
- Anodic Oxide Films and Nanostructures
- Transition Metal Oxide Nanomaterials
Imperial College London
2016-2025
For zinc-ion batteries (ZIBs), the non-uniform Zn plating/stripping results in a high polarization and low Coulombic efficiency (CE), hindering large-scale application of ZIBs. Here, inspired by biomass seaweed plants, an anionic polyelectrolyte alginate acid (SA) was used to initiate situ formation high-performance solid electrolyte interphase (SEI) layer on anode. Attribute groups -COO
The rational construction of efficient and low-cost electrocatalysts for the hydrogen evolution reaction (HER) is critical to seawater electrolysis. Herein, trimetallic heterostructured core-shell nanoboxes based on Prussian blue analogues (Ni-Co@Fe-Co PBA) were synthesized using an iterative coprecipitation strategy. same procedure was used preparation PBA core shell, with synthesis shell involving chemical etching during introduction ferrous ions. Due its unique structure composition,...
Abstract Here, a sol‐gel method is used to prepare Prussian blue analogue (NiFe‐PBA) precursor with 2D network, which further annealed an Fe 3 O 4 /NiC x composite (NiFe‐PBA‐gel‐cal), inheriting the ultrahigh specific surface area of parent structure. When as both anode and cathode catalyst for overall water splitting, it requires low voltages 1.57 1.66 V provide current density 100 mA cm −2 in alkaline freshwater simulated seawater, respectively, exhibiting no obvious attenuation over 50 h...
Abstract For zinc‐ion batteries (ZIBs), the non‐uniform Zn plating/stripping results in a high polarization and low Coulombic efficiency (CE), hindering large‐scale application of ZIBs. Here, inspired by biomass seaweed plants, an anionic polyelectrolyte alginate acid (SA) was used to initiate situ formation high‐performance solid electrolyte interphase (SEI) layer on anode. Attribute groups −COO − , affinity 2+ ions induces well‐aligned accelerating channel for uniform plating. This SEI...
Lithium-ion batteries have become the primary electrical energy storage device in commercial and industrial applications due to their high energy/power density, reliability, long service life. It is essential estimate state of health (SOH) ensure safety, optimize better efficiency enhance battery life-cycle management. This paper presents a comprehensive review SOH estimation methods, including experimental approaches, model-based machine learning algorithms. A critical in-depth analysis...
Ionogels are a new class of promising materials for use in all-solid-state energy storage devices which they can function as an integrated separator and electrolyte. However, their performance is limited by the presence crosslinking polymer, needed to improve mechanical properties, but compromises ionic conductivity. Here, directional freezing used followed solvent replacement method prepare aligned nanocomposite ionogels exhibit enhanced conductivity, good strength, thermal stability...
“All-in-gel” supercapacitor is designed <italic>via</italic> ionogel composite electrolyte and Bucky gel electrodes. These flexible, conductive shape-conformable gels represent a step change in the design of safe energy storage devices for wearable electronics, particular those facing increased demands hazardous operational environments.
Abstract Lattice‐strained Bi 2 S 3 with 3D hierarchical structures are prepared through a top‐down route by topotactic transformation. High‐resolution transmission electron microscopy and X‐ray diffraction (XRD) confirm the lattice spacing is expanded prolonged sulfuration. Performance studies demonstrate that largest expansion (Bi ‐9.7%, where 9.7% represents expansion) exhibits greater electrocatalytic hydrogen evolution reaction (HER) activity compared to ‐3.2%. Density functional theory...
With the rapid development of renewable energy harvesting technologies, there is a significant demand for long-duration storage technologies that can be deployed at grid scale. In this regard, polysulfide-air redox flow batteries demonstrated great potential. However, crossover polysulfide one challenge. Here, we report stable and cost-effective alkaline-based hybrid battery where dual-membrane-structured cell design mitigates sulfur issue. Moreover, combining manganese/carbon catalysed air...
4D printing has the potential to create complex 3D geometries which are able react environmental stimuli opening new design possibilities. However, vast majority of approaches use polymer based materials, limits operational temperature. Here, we present a novel multi-metal electrochemical printer is fabricate bimetallic and through selective deposition different metals, temperature responsive behaviour can thus be programmed into printed structure. The concept demonstrated meniscus confined...
Abstract The practical application of rechargeable aqueous zinc batteries is impeded by dendrite growth, especially at high areal capacities and current densities. Here, this challenge addressed proposing perfluoro(2‐ethoxyethane)sulfonic (Zn(PES) 2 ) as a battery electrolyte. This new amphipathic salt, with hydrophobic perfluorinated tail, can form an anode protecting layer, in situ, biomimetic lipid‐bilayer structure. layer limits the contact free H O offers fast Zn 2+ transport pathways,...
Direct metal laser sintering is used to create 3D hierarchical porous metallic scaffolds which are then functionalized with a co-electrodeposition of MnO2, Mn2O3, and doped conducting polymer. This approach functionalizing printed thus opens new possibilities for structural energy storage devices enhanced performance lifetime characteristics. As service our authors readers, this journal provides supporting information supplied by the authors. Such materials peer reviewed may be re-organized...
A novel micro-monolithic fuel cell converts low-grade methane efficiently to clean electrical energy.
Herein, a facile and efficient synthesis of microstructured Co3 O4 for both supercapacitor water-splitting applications is reported. Metal cations (Fe3+ , Cu2+ ) serve as structure-directing agents regulating the structure Co compounds, which are subsequently annealed to yield . Detailed characterizations density functional theory (DFT) calculations reveal that in situ Cl-doping introduces oxygen defects provides abundant electroactive sites, narrows bandgap, enhances electron excitation...
The electrochemical conversion of biomass-derived compounds into value-added chemicals using renewable electricity has attracted attention as a promising pathway for sustainable chemical production, with the electrooxidation cyclohexanol being typical example. However, optimizing and upscaling these processes have been hindered due to limited understanding underlying mechanisms limiting factors. To address this, there is critical need experimental tools that enable more efficient...
Sodium-ion batteries (SIBs) are cost-effective alternatives to lithium-ion (LIBs), but their low energy density remains a challenge. Current electrode designs fail simultaneously achieve high areal loading, active...
Lithium-ion battery electrodes are typically manufactured via slurry casting, which involves mixing active material particles, conductive carbon, and a polymeric binder in solvent, followed by casting drying the coating on current collectors (Al or Cu). These functional but still limited terms of pore network percolation, electronic connectivity, mechanical stability, leading to poor electron/ion conductivities integrity upon cycling, result degradation. To address this, we fabricate...
Experimental results show that bi-layer graded cathodes exhibit higher discharge capacity with increasing C-rates compared to conventional monolayer electrodes, along an increase in energy and power density.