Optimization of Pt Catalyst for Anode/Cathode of PEMFC via Magnetron Sputtering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10372507" target="_blank" >RIV/00216208:11320/17:10372507 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1149/08008.0839ecst" target="_blank" >http://dx.doi.org/10.1149/08008.0839ecst</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1149/08008.0839ecst" target="_blank" >10.1149/08008.0839ecst</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of Pt Catalyst for Anode/Cathode of PEMFC via Magnetron Sputtering

Popis výsledku v původním jazyce

In this study, performance of thin film Pt catalysts with metal loadings in the range of 1-200 µg/cm2 prepared by magnetron sputtering was investigated for both anode and cathode sides of a proton exchange membrane fuel cell (PEMFC) in H2/O2 and H2/air modes. Standard microporous layers comprising carbon nanoparticles and Teflon PTFE and FEP supported gas diffusion layer, as well as their modifications by magnetron deposition of carbon in N2 atmosphere (leading to CNx) followed by plasma etching were used as substrates for Pt deposition. The CNx structure exhibits higher resistance to electrochemical etching as compared to pure C as was determined by mass spectrometry analysis of PEMFC exhaust at different cell potentials for both sides of PEMFC. The platinum utilization in PEMFC with magnetron sputtered thin-film Pt electrodes is up to 2 orders of magnitude higher than with the current state-of-the-art Pt/C catalysts while keeping the similar power efficiency.

Název v anglickém jazyce

Optimization of Pt Catalyst for Anode/Cathode of PEMFC via Magnetron Sputtering

Popis výsledku anglicky

In this study, performance of thin film Pt catalysts with metal loadings in the range of 1-200 µg/cm2 prepared by magnetron sputtering was investigated for both anode and cathode sides of a proton exchange membrane fuel cell (PEMFC) in H2/O2 and H2/air modes. Standard microporous layers comprising carbon nanoparticles and Teflon PTFE and FEP supported gas diffusion layer, as well as their modifications by magnetron deposition of carbon in N2 atmosphere (leading to CNx) followed by plasma etching were used as substrates for Pt deposition. The CNx structure exhibits higher resistance to electrochemical etching as compared to pure C as was determined by mass spectrometry analysis of PEMFC exhaust at different cell potentials for both sides of PEMFC. The platinum utilization in PEMFC with magnetron sputtered thin-film Pt electrodes is up to 2 orders of magnitude higher than with the current state-of-the-art Pt/C catalysts while keeping the similar power efficiency.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

ECS Transactions [online]

ISBN

—

ISSN

1938-5862

e-ISSN

neuvedeno

Počet stran výsledku

7

Strana od-do

839-845

Název nakladatele

Electrochemical Soc. Inc.

Místo vydání

Pennington, NJ, USA

Místo konání akce

National Harbor, MD, USA

Datum konání akce

1. 10. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000425016500085