Ionomer-Phasenwechsel-Energiespeicher

Soll die Wärme der Sonne möglichst optimal für die Heizung und das Warmwasser genutzt werden, so sind der Solarkollektor und der Wärmespeicher im Haus (Pufferspeicher) größer als sonst auszulegen.Hat der Wärmespeicher nach mehreren Tagen Sonnenschein seine maximale Temperatur erreicht, so kann die Wärme vom Solarkollektor genutzt werden, indem diese dem

Can ionomers be used for electrochemical energy conversion technologies?

Application of ionomers for electrochemical energy conversion technologies has a long history (>40 years) but most of the technologies have experienced a steep market penetration challenge. One of the major obstacles is the lack of customized ionomer materials that could meet the particular requirements of specific applications.

What are ionomers used for?

Although most ionomer literatures are focused on their use as ion exchange membranes, a solid ion conductor and separator, ionomers are also used as electrode catalyst binders in electrochemical cells. Since the role of ionomers is different depending on particular applications, the property requirements of the ionomer materials are also different.

What are the ex-situ properties of ionomer?

Once a new ionomer is developed, the following ex-situ properties of ionomer are typically evaluated for electrochemical energy conversion application: ion conductivity, chemical stability, mechanical properties, and microstructure morphology.

How is ionomer coverage measured?

Furthermore, electrochemical evaluation provides a quantitative measurement of ionomer coverage by comparing the electric double layer capacitance or CO stripping current of the ionomer-covered area and of the total catalyst area 35.

How is ionomer solution prepared?

The ionomer solution was sprayed onto the catalyst layer on an 80 °C hot plate. The anode (roughly 3.2 cm 2) was prepared by coating and hot-pressing an IrO 2 paste onto a porous Ti substrate. The IrO 2 paste contained 10 wt.% QAPPT ionomer and 90 wt.% IrO 2.

Can a cathode ionomer reduce cell voltage?

The application of a cathode ionomer can lower the cell voltage by up to 1.4 V at 1 A/cm 2. Our work reveals the importance of ionomers for pure-water AEMWEs and identifies cathode improvement as a key area for future work. To access this article, please review the available access options below. Read this article for 48 hours.