| Attributes | Values |
|---|
| rdf:type
| |
| rdfs:seeAlso
| |
| Description
| - Polymer electrolyte membrane (PEM) water el ectrolysis is an attra ctive way of producing carbon-free hydrogen. One of the drawbac ks of this method is the need for precious metalbased electrocatalysts. This calls for a highly efficient utilization of the precious metal, which can be obtained by dispersi ng the precious meta l compound onto a catalyst support. Electrocatalysts with 50, 70 and 90 wt.% of IrO2 on a TaC support were tested in a laboratory PEM water electrolyser and compared with pure IrO2. The temperature was set at 90, 110, 120 and 130 C respectively and the cell voltage was varied between 1.4 and 1.8 V. The load characteristics and electrochemical impedance spectra were obtained and compared for a range of electrocatalysts. The highest current densities and the lowest charge transfer and cell resistances were found for the 70 wt.% IrO2 electrocatalyst. By contrast, the pure IrO2 electrocatalyst showed the lowest current densities and the highest charge transfer and cell resistance. For example, the relative difference in current densities between the 70 wt.% IrO2 and the pure IrO2 electrocatalyst attained 36% at 130 C and 1.7 V. All of the supported electrocatalysts showed a higher efficiency of utilization of the precious metal than the pure IrO2
- Polymer electrolyte membrane (PEM) water el ectrolysis is an attra ctive way of producing carbon-free hydrogen. One of the drawbac ks of this method is the need for precious metalbased electrocatalysts. This calls for a highly efficient utilization of the precious metal, which can be obtained by dispersi ng the precious meta l compound onto a catalyst support. Electrocatalysts with 50, 70 and 90 wt.% of IrO2 on a TaC support were tested in a laboratory PEM water electrolyser and compared with pure IrO2. The temperature was set at 90, 110, 120 and 130 C respectively and the cell voltage was varied between 1.4 and 1.8 V. The load characteristics and electrochemical impedance spectra were obtained and compared for a range of electrocatalysts. The highest current densities and the lowest charge transfer and cell resistances were found for the 70 wt.% IrO2 electrocatalyst. By contrast, the pure IrO2 electrocatalyst showed the lowest current densities and the highest charge transfer and cell resistance. For example, the relative difference in current densities between the 70 wt.% IrO2 and the pure IrO2 electrocatalyst attained 36% at 130 C and 1.7 V. All of the supported electrocatalysts showed a higher efficiency of utilization of the precious metal than the pure IrO2 (en)
|
| Title
| - Performance of a PEM water electrolyser using a TaC-supported iridium oxide electrocatalyst
- Performance of a PEM water electrolyser using a TaC-supported iridium oxide electrocatalyst (en)
|
| skos:prefLabel
| - Performance of a PEM water electrolyser using a TaC-supported iridium oxide electrocatalyst
- Performance of a PEM water electrolyser using a TaC-supported iridium oxide electrocatalyst (en)
|
| skos:notation
| - RIV/60461373:22310/14:43897732!RIV15-MPO-22310___
|
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| |
| http://linked.open...iv/cisloPeriodika
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/14:43897732
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - Electrochemical impedance spectroscopy; Load characteristics; Cell resistance; Polarization resistance; Tantalum carbide; PEM water electrolysis (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
|
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| - International Journal of Hydrogen Energy
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Bouzek, Karel
- Mazúr, Petr
- Paidar, Martin
- Polonský, Jakub
- Christensen, Erik
|
| http://linked.open...ain/vavai/riv/wos
| |
| issn
| |
| number of pages
| |
| http://bibframe.org/vocab/doi
| - 10.1016/j.ijhydene.2013.12.085
|
| http://localhost/t...ganizacniJednotka
| |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)