Andrew R Motz

SLAM for structured environments using mechanically scanned imaging sonar

Andrew R Motz

As the modern utilization of the maritime environment only grows, uncrewed systems present the future of safety, efficiency, and capability. For submerged operations, Autonomous Underwater Vehicles (AUVs) enable scientists, industry, and militaries to access remote, inhospitable locations and execute a variety of …

(Invited) The Science of Manufacturing Electrolyzers at Scale

Katherine E. Ayers, Christopher Capuano, Andrew R Motz, Luke T. Dalton

Scientists in industry are often confronted with the phrase “...and the rest is just engineering!” by aspiring inventors looking to license a concept that has been demonstrated at lab scale. Sometimes a brute force, trial and error method to make a saleable …

(Invited) Challenges and Successes of an Industrial Start-up to Global Electrolyzer Company

Christopher Capuano, Katherine E. Ayers, Luke T. Dalton, Andrew R Motz et autres

Hydrogen generation via electrolysis has gained much attention internationally as not only a sustainable source of fuel for the transportation, but as a carrier of energy to capture stranded renewable energy due to the carbon-free chemical cycle and response characteristics of the …

Iridium Thrifting and Circularity: Perspective, Progress, and Demonstration from an OEM

Andrew R Motz, Marcelo Carmo, Christopher Capuano, Katherine E. Ayers

Proton exchange membrane water electrolysis (PEMWE) is a technology that has promise to help decarbonize the hydrogen sector and thus has recently been receiving significant attention. Incentives across the globe, including in the Hydrogen Hubs in the US and the European Hydrogen …

Research and Development Practices within PEM Water Electrolyzer Manufacturing to Support a Circular Economy

Marcelo Carmo, Andrew R Motz, Christopher Capuano, Luke T. Dalton et autres

Nel Hydrogen has in the last decades substantially invested in R&D efforts to consolidate next-generation PEM stacks and systems towards a commercial pathway for these devices at scale. These innovative tasks have allowed the company to reach much lower values for levelized …

Advanced electrode manufacturing to enable low cost PEM electrolysis

Katherine E. Ayers, Andrew R Motz, Chris Capuano, Scott A Mauger

A critical challenge for the implementation of proton exchange membrane (PEM)-based water electrolyzers for the H2@Scale vision is the capital cost, which is largely driven by related factors of overdesign and highly manual legacy manufacturing methods. Typical electrolyzer cells have an order …

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A New Semi-Empirical Method of Quantifying Electrolyzer Degradation

Shaina Errico, Serafina Fortiner, Devashish Kulkarni, Andrew R Motz

Electrolyzers are a key component in transitioning the world’s reliance on fossil fuels for energy. Accordingly, a substantial influence on electrolyzer costs is operational efficiency. The means of quantifying this efficiency is necessary for sustaining the continuous improvement of this technology. Polarization …

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Effect of Block Length on the Properties of Multiblock Polysulfone-Poly(diallylpiperidinium hydroxide) Anion Exchange Membranes

Derek Strasser, Alison R. Biery, Andrew R Motz, Sönke Seifert et autres

Research in anion exchange membranes (AEM)s has continued with the development of materials bearing base stable cations. Designing AEMs that microphase separate into hydroxide conductive, hydrophilic domains within a hydrophobic and mechanically robust matrix has been shown to be successful for improving …

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(Energy Technology Division Walter van Schalkwijk Award in Sustainable Energy Technology Address) Low Temperature Water Electrolysis as a Near Term Enabler in Climate Change Mitigation

Katherine E. Ayers, Christopher Capuano, Marcelo Carmo, Diana Deporcellinis et autres

Generating hydrogen from renewable production methods such as water electrolysis is fundamental to meeting decarbonization goals and mitigating climate change. Regardless of the end market split for hydrogen in ground transportation applications, hydrogen is the major feedstock for industrial chemicals such as …

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(Invited) Manufacturing Challenges, Opportunities, and Successes for PEM Electrolysis at Scale

Christopher Capuano, Katherine E. Ayers, Andrew R Motz, Alex Keane et autres

Hydrogen generation via electrolysis has gained much attention internationally as not only a sustainable source of fuel for the transportation, but as a carrier of energy to capture stranded renewable energy due to the carbon-free chemical cycle and response characteristics of the …

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The Role of Electrocatalysts in the Development of Gigawatt-Scale PEM Electrolyzers

Ryan J. Ouimet, Jennifer R. Glenn, Diana De Porcellinis, Andrew R Motz et autres

Electrocatalysts are nanomaterials of paramount importance within water electrolyzers, because they facilitate the electron transfer between reactants and electrode, enabling the chemical transformation of water into hydrogen and oxygen. In this Perspective, recent findings in electrocatalyst development for the next generation of …

Standard Operating Protocol for Ion-Exchange Capacity of Anion Exchange Membranes

Lan Wang, Santiago Rojas‐Carbonell, Keda Hu, Brian P. Setzler et autres

Ion-exchange capacity (IEC) is the measure of a material’s capability to displace ions formerly incorporated within its structure. IEC is a key feature of anion-exchange membranes (AEM), as it determines the AEM’s ability to conduct the ions required to sustain the electrochemical …

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