Julian R. Tolchard
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View article: Realization of Aqueous Processed LiNi <sub>0.5</sub> Mn <sub>1.5</sub> O <sub>4</sub> through the pH Optimization of Polyacrylate Binders
Realization of Aqueous Processed LiNi <sub>0.5</sub> Mn <sub>1.5</sub> O <sub>4</sub> through the pH Optimization of Polyacrylate Binders Open
The transition to aqueous cathode processing is essential for achieving sustainable lithium‐ion battery production. Replacing the widely used solvent, N ‐methyl‐2‐pyrrolidone (NMP), with water poses challenges, particularly due to rapid pH…
View article: PBDT-[(Bn)mim][TFSI]-LiTFSI Membranes: A New and Effective Solid Molecular Ionic Composite Electrolyte for Li-Ion Batteries
PBDT-[(Bn)mim][TFSI]-LiTFSI Membranes: A New and Effective Solid Molecular Ionic Composite Electrolyte for Li-Ion Batteries Open
Solid electrolytes in Li-ion batteries offer enhanced safety and stability and contribute to improved energy density. In this study, a novel approach to synthesize a solid molecular ionic composite as an electrolyte for Li-ion batteries us…
View article: Single-ion gel-polymer electrolyte for improving the performances of Li-ion batteries
Single-ion gel-polymer electrolyte for improving the performances of Li-ion batteries Open
Solid State Batteries (SSBs) combine the significantly higher energy density (>450 Wh/kg) and enhanced safety required to expedite society's transition away from fossil fuels, making them the most potential ''next-gen'' chemistry for lithi…
View article: Solid Polymer Electrolyte for Improving the Performances of Ssbs
Solid Polymer Electrolyte for Improving the Performances of Ssbs Open
View article: Interphase Engineering of LiNi<sub>0.88</sub>Mn<sub>0.06</sub>Co<sub>0.06</sub>O<sub>2</sub> Cathodes Using Octadecyl Phosphonic Acid Coupling Agents
Interphase Engineering of LiNi<sub>0.88</sub>Mn<sub>0.06</sub>Co<sub>0.06</sub>O<sub>2</sub> Cathodes Using Octadecyl Phosphonic Acid Coupling Agents Open
Ni-rich layered oxides are proven high-energy cathode materials for Li-ion batteries, but their characteristic short cycle life remains a challenge for implementation on a wider scale. The surface reactivity of Ni-rich layered oxides is th…
View article: Stabilizing the Cathode Interphase of LNMO using an Ionic‐liquid based Electrolyte
Stabilizing the Cathode Interphase of LNMO using an Ionic‐liquid based Electrolyte Open
The ionic liquid (IL)‐based electrolyte comprising 1.2 M lithium bis(fluorosulfonyl)imide (LiFSI) in N‐propyl‐N‐methylpyrrolidinium bis(fluorosulfonyl)imide (PYR 13 FSI) (ILE) has been evaluated as a suitable system for the high‐voltage ca…
View article: New insights into orthophosphoric acid assisted rapid aqueous processing of NMC622 cathodes
New insights into orthophosphoric acid assisted rapid aqueous processing of NMC622 cathodes Open
Rapid aqueous processing of NMC with phosphoric acid pH adjustment requires careful control of stoichiometry and drying to avoid reactive phosphate residues, and consequent rapid cell death.
View article: A Single‐Pot Co‐Precipitation Synthesis Route for Ni‐Rich Layered Oxide Materials with High Cycling Stability
A Single‐Pot Co‐Precipitation Synthesis Route for Ni‐Rich Layered Oxide Materials with High Cycling Stability Open
In this work we report variations of LiNi 0.88 Mn 0.06 Co 0.06 O 2 synthesised through a single‐pot oxalic acid co‐precipitation route, in which all cation precursors were added in the same step. The effects of Al‐doping, heat‐treatment te…
View article: Non-Nucleophilic Electrolyte Based on Ionic Liquid and Magnesium Bis(diisopropyl)amide for Rechargeable Magnesium-Ion Batteries
Non-Nucleophilic Electrolyte Based on Ionic Liquid and Magnesium Bis(diisopropyl)amide for Rechargeable Magnesium-Ion Batteries Open
A non-nucleophilic electrolyte for rechargeable Mg-ion batteries is developed by the reaction of magnesium bis(diisopropyl)amide and 1-ethyl-3-methylimidazolium tetrachloroaluminate ionic liquid in tetrahydrofuran solvent. The electrolyte …
View article: Cold Sintering as a Cost-Effective Process to Manufacture Porous Zinc Electrodes for Rechargeable Zinc-Air Batteries
Cold Sintering as a Cost-Effective Process to Manufacture Porous Zinc Electrodes for Rechargeable Zinc-Air Batteries Open
Zinc-air batteries (ZABs) offer a sustainable and safe pathway to low-cost energy storage. Recent research shows that thermally-sintered porous Zn electrodes with a three-dimensional network structure can enhance the performance and lifeti…
View article: Improved cyclability of Nickel-rich layered oxides
Improved cyclability of Nickel-rich layered oxides Open
This study compares the physico- and electro- chemical properties of LiNi 0.8 Mn 0.10 Co 0.1 O 2 (NMC811) and LiNi 0.83 Mn 0.06 Co 0.09 Al 0.1 O 2 (NMCA) prepared by an oxalic acid co-precipitation. Deposition of a SiO 2 surface coating wa…
View article: Designing Aqueous Organic Electrolytes for Zinc–Air Batteries: Method, Simulation, and Validation
Designing Aqueous Organic Electrolytes for Zinc–Air Batteries: Method, Simulation, and Validation Open
Aqueous zinc–air batteries (ZABs) are a low‐cost, safe, and sustainable technology for stationary energy storage. ZABs with pH‐buffered near‐neutral electrolytes have the potential for longer lifetime compared to traditional alkaline ZABs …
View article: Platinum and Platinum Group Metal-Free Catalysts for Anion Exchange Membrane Fuel Cells
Platinum and Platinum Group Metal-Free Catalysts for Anion Exchange Membrane Fuel Cells Open
The development of active hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) catalysts for use in anion exchange membrane fuel cells (AEMFCs), which are free from platinum group metals (PGMs), is expected to bring this t…
View article: Fabrication process parameters significantly affect the perovskite oxygen carriers materials (OCM) performance in chemical looping with oxygen uncoupling (CLOU)
Fabrication process parameters significantly affect the perovskite oxygen carriers materials (OCM) performance in chemical looping with oxygen uncoupling (CLOU) Open
The CLOU performance of the CaTi x Mn 0.9−x Mg 0.1 O 3 (CMTM) perovskite-type system was investigated, comparing materials produced at laboratory scale with those made at industrial ton scale. The CLOU and conversion performances were stud…
View article: Analyse av alternative driftsformer for ikke-elektrifiserte baner 2. utgave
Analyse av alternative driftsformer for ikke-elektrifiserte baner 2. utgave Open
SAMMENDRAG Alternative drivstoff og framdriftsteknologier er evaluert for ikke-elektrifiserte banestrekninger i Norge med fokus på godstrafikk. Denne rapporten er en revidert utgave av en rapport som opprinnelig ble skrevet for Jernbanever…
View article: Gas Switching Reforming for syngas production with iron-based oxygen carrier-the performance under pressurized conditions
Gas Switching Reforming for syngas production with iron-based oxygen carrier-the performance under pressurized conditions Open
A four-stage Gas Switching Reforming for syngas production with integrated CO2 capture using an iron-based oxygen carrier was investigated in this study. The oxygen carrier was first reduced using dry methane, where high methane conversion…
View article: Silicon anodes for lithium-ion batteries produced from recovered kerf powders
Silicon anodes for lithium-ion batteries produced from recovered kerf powders Open
Silicon kerf waste from a photovoltaic silicon production process is assessed as an anode material for application as a lithium ion battery anode. In contrast to previous studies, the Si-kerf is used as-produced, with no chemical treatment…
View article: Gas Switching Reforming (GSR) for syngas production with integrated CO2 capture using iron-based oxygen carriers
Gas Switching Reforming (GSR) for syngas production with integrated CO2 capture using iron-based oxygen carriers Open
The process behavior of a Gas Switching Reforming (GSR) reactor was studied using three different iron-based oxygen carrier materials: Iron-oxide on Alumina, Iron-Nickel oxide on Alumina and Iron-Ceria on Alumina. It was observed that, for…
View article: Gas Switching Reforming for Syngas Production with Iron-Based Oxygen Carrier- the Performance Under Pressurized Conditions
Gas Switching Reforming for Syngas Production with Iron-Based Oxygen Carrier- the Performance Under Pressurized Conditions Open
View article: Rationalization of Hydrothermal Synthesis of NaNbO<sub>3</sub> by Rapid <i>in Situ</i> Time-Resolved Synchrotron X-ray Diffraction
Rationalization of Hydrothermal Synthesis of NaNbO<sub>3</sub> by Rapid <i>in Situ</i> Time-Resolved Synchrotron X-ray Diffraction Open
In situ monitoring of the formation of crystalline phases during conventional hydrothermal synthesis is experimentally challenging. Here, we report an in situ time-resolved synchrotron X-ray diffraction study during hydrothermal synthesis …
View article: Flame spray pyrolysis of tin oxide-based Pt catalysts for PEM fuel cell applications
Flame spray pyrolysis of tin oxide-based Pt catalysts for PEM fuel cell applications Open
SnO 2 doped with Sb and Nb has been investigated for its use as catalyst support materials replacing carbon to enhance PEM fuel cells stability. Nanostructured powders of various doping levels were prepared by flame spray pyrolysis (FSP). …
View article: <i>In-situ</i> structural investigations of ferroelasticity in soft and hard rhombohedral and tetragonal PZT
<i>In-situ</i> structural investigations of ferroelasticity in soft and hard rhombohedral and tetragonal PZT Open
Despite the technological importance of hard and soft PZT, Pb(Zr,Ti)O3, ceramics, the mechanisms of ferroelectric hardening and softening remain widely discussed in the literature. The hardening and softening phenomena have traditionally b…
View article: Optimal Particle Parameters for CLC and CLR Processes - Predictions by Intra-Particle Transport Models and Experimental Validation
Optimal Particle Parameters for CLC and CLR Processes - Predictions by Intra-Particle Transport Models and Experimental Validation Open
Validated models for predicting oxidation and reduction kinetics of multi-component porous particles in chemical looping combustion (CLC) and chemical looping reforming (CLR) processes are of key importance to identify the rate limiting st…