A5031596874- Fuel Cells and Related Materials
- Hybrid Renewable Energy Systems
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advanced Battery Technologies Research
- Hydrogen Storage and Materials
- Advancements in Solid Oxide Fuel Cells
- Energy and Environment Impacts
- Ammonia Synthesis and Nitrogen Reduction
- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Membrane-based Ion Separation Techniques
- Electric and Hybrid Vehicle Technologies
- Electric Vehicles and Infrastructure
- Advanced Battery Materials and Technologies
- Advanced Photocatalysis Techniques
- Electrochemical Analysis and Applications
- Machine Learning in Materials Science
- Water-Energy-Food Nexus Studies
- Catalysts for Methane Reforming
- Energy Harvesting in Wireless Networks
- Advancements in Battery Materials
- Spacecraft and Cryogenic Technologies
- CO2 Reduction Techniques and Catalysts
- Molten salt chemistry and electrochemical processes
Hydrogenics (Belgium)
2019-2024
Norsk Hydro (Norway)
2019-2023
HR Wallingford
2015-2021
Proton OnSite (United States)
2012-2019
United States Department of Energy
2019
Proton (Malaysia)
2018
Foton Motors (China)
2013
Proton (United Kingdom)
2011-2012
Battery Park
2002-2005
Understanding the durability-limiting factors of anion exchange membrane water electrolyzers operating under pure water-, KOH- and K<sub>2</sub>CO<sub>3</sub>-fed conditions.
Water electrolysis has benefits over other hydrogen generation technologies due to the lack of carbon footprint when integrated with a renewable source energy. Specifically, proton exchange membrane (PEM) is promising technology for applications because corrosive electrolytes, small footprint, and ability generate at high pressure, requiring only deionized water an energy source. PEM also produces very pure hydrogen, none typical catalyst poisons that may be found in produced from reforming....
Hydrogen is an important part of any discussion on sustainability and reduction in emissions across major energy sectors. In addition to being a feedstock process gas for many industrial processes, hydrogen emerging as fuel alternative transportation applications. Renewable sources are therefore required increase capacity. Low-temperature electrolysis water currently the most mature method carbon-free generation reaching relevant scales impact landscape. However, costs still need be reduced...
Several application fields can benefit from solar-hydrogen technologies <italic>via</italic> specific short-term and long-term pathways.
Anion exchange membrane (AEM) electrolysis is a promising technology to produce hydrogen through the splitting of pure water. In contrast proton-exchange-membrane (PEM) technology, which requires precious-metal oxide anodes, AEM systems allow for use earth-abundant anode catalysts. Here we report study first-row transition-metal (oxy)hydroxide/oxide catalyst powders application in devices and compare physical properties performance benchmark IrOx catalysts as well typical alkaline...
Electrocatalysts are nanomaterials of paramount importance within water electrolyzers, because they facilitate the electron transfer between reactants and electrode, enabling chemical transformation into hydrogen oxygen. In this Perspective, recent findings in electrocatalyst development for next generation polymer electrolyte membrane (PEM) electrolyzers at scale discussed. We discuss opportunities to create catalyst architectures, demonstrate electrode manufacturing tools, how useful...
Alkaline stability of benzyl trimethylammonium (BTMA)-functionalized polyaromatic membranes was investigated by computational modeling and experimental methods. The barrier height hydroxide initiated aryl-ether cleavage in the polymer backbone computed to be 85.8 kJ/mol, a value lower than nucleophilic substitution α-carbons on benzylic position BTMA cationic functional group, 90.8 kJ/mol. heights aryl–aryl (polymer backbone) are 223.8–246.0 study suggests that facile aryl–ether is not only...
Solid-state alkaline water electrolysis using a pure feed offers several distinct advantages over liquid electrolyte and proton exchange membrane electrolysis. These include larger array of electrocatalyst available for oxygen evolution, no management, the ability to apply differential pressure. To date, there have been only handful reports on solid-state electrolyzers anion membranes (AEMs), that investigate loss in system performance time. In this work, electrolyzer was successfully...
Water based electrolyzers offer a promising approach for generating hydrogen gas renewable energy storage. 3M's nanostructured thin film (NSTF) catalyst technology platform has been shown to significantly reduce many of the performance, cost and durability barriers standing in way H2/air PEM fuel cells vehicles. In this paper we describe results from first evaluations low loaded NSTF catalysts H2/O2 at Proton OnSite Giner, Inc. Over two dozen membrane electrode assemblies comprising nine...
Lead ruthenate pyrochlore showed exceptional OER activity and stability when tested in a solid-state alkaline water electrolyzer.
Iridium oxide is one of the most common anode catalysts in commercial proton exchange membrane (PEM) electrolyzers because its strong mix high activity and stability under oxygen evolution reaction (OER) conditions. Unfortunately, benchmarking iridium OER has proven difficult since IrO2 cannot undergo underpotential deposition like platinum other transition metal eletrocatalysts, making it to estimate electrochemically active surface area (ECSA), as well specific mass activity. In this work,...
Understanding the relationships between porous transport layer (PTL) morphology and oxygen removal is essential to improve polymer electrolyte water electrolyzer (PEWE) performance. Operando X-ray computed tomography machine learning were performed on a model at different flow rates current densities determine how these operating conditions alter in PTLs. We report direct observation of taking preferential pathways through PTL, regardless rate or density (1-4 A/cm2). Oxygen distribution PTL...
An anode electrode concept of thin catalyst-coated liquid/gas diffusion layers (CCLGDLs), by integrating Ir catalysts with Ti tunable LGDLs facile electroplating in proton exchange membrane electrolyzer cells (PEMECs), is proposed. The CCLGDL design only 0.08 mgIr cm-2 can achieve comparative cell performances to the conventional commercial design, saving ≈97% catalyst and augmenting a utilization ≈24 times. CCLGDLs regulated patterns enable insight into how pattern morphology impacts...