Thin-Film Catalysts for Proton Exchange Membrane Water Electrolyzers and Unitized Regenerative Fuel Cells

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10406630" target="_blank" >RIV/00216208:11320/19:10406630 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/978-3-030-20859-2" target="_blank" >https://doi.org/10.1007/978-3-030-20859-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-20859-2" target="_blank" >10.1007/978-3-030-20859-2</a>

Result language

angličtina

Original language name

Thin-Film Catalysts for Proton Exchange Membrane Water Electrolyzers and Unitized Regenerative Fuel Cells

Original language description

This work revolves around hydrogen economy and energy-storage electrochemical systems. More specifically, it investigates the possibility of using magnetron sputtering for deposition of efficient thin-film anode catalysts with low noble metal content for proton exchange membrane water electrolyzers (PEM-WEs) and unitized regenerative fuel cells (PEM-URFCs). The motivation for this research derives from the urgent need of minimizing the price of mentioned electrochemical devices should they enter mass production. Numerous experiments were carried out, correlating the actual in-cell performance with the varying position of thin-film catalyst within the membrane electrode assembly, with the composition of high-surface support sublayer, and with the chemical structure of the catalyst itself. The wide arsenal of analytical methods ranging from electrochemical impedance spectroscopy through scanning electron microscopy to photoelectron spectroscopy allowed us to describe complex phenomena behind different obtained efficiencies. Consequent systematic optimizations led to the design of novel PEM-WE anode thin-film iridium catalyst with thickness of just 50 nm, supported on optimized TiC-based sublayer which performed similarly to standard counterparts despite using just a fraction of their noble metal content. Moreover, the novel anode thin-film bifunctional Ir/TiC/Pt sandwich-like PEM-URFC catalyst yielded 31.15% round-trip efficiency in comparison to 40.02% given by a combination of dedicated high-loading devices.

Czech name

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Czech description

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Type

B - Specialist book

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

978-3-030-20858-5

Number of pages

101

Publisher name

Springer

Place of publication

Cham

UT code for WoS book

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