Chemistry, 04.07.2019 08:00 barbaramathews1123

What role do the nafion resin and h3po4 play? could you use concentrated hcl or h2so4 instead?

Answers: 1

Show answers

Answers

Answer from: ravenmcfarlandp07okx

Answer

Nafion

Nafion is a sulfonated tetrafluoroethylene based fluoropolymer-copolymer discovered in the late 1960s by Walther Grot of DuPont. It is the first of a class of synthetic polymers with ionic properties which are called ionomers. Nafion's unique ionic properties are a result of incorporating perfluorovinyl ether groups terminated with sulfonate groups onto a tetrafluoroethylene (Teflon) backbone.Nafion has received a considerable amount of attention as a proton conductor for proton exchange membrane (PEM) fuel cells because of its excellent thermal and mechanical stability.

Role of Nafion

Nafion's properties make it suitable for a broad range of applications. Nafion has found use in fuel cells, electrochemical devices, chlor-alkali production, metal-ion recovery, water electrolysis, plating, surface treatment of metals, batteries, sensors, Donnan dialysis cells, drug release, gas drying or humidifaction, and superacid catalysis for the production of fine chemicals. Nafion is also often cited for theoretical potential (i.e., thus far untested) in a number of fields. With consideration of Nafion's wide functionality, only the most significant will be discussed below.

Role of Phosphoric acid in fuel cells

Phosphoric acid is used as an electrolyte in phosphoric acid fuel cells. Pure liquid phosphoric acid (H3PO4) saturated in a silicon carbide matrix (SiC) is used as electrolyte in different fuel cells. Operating range is about 150 to 210 °C. The electrodes are made of carbon paper coated with a finely dispersed platinum catalyst.

Use of H2SO4 and HCl

H2SO4 is normally used as electrolyte as Phosphoric acid. There is no evidences of use of HCl as electrolyte because HCl will produce Chlorine gas which is very reactive so HCl is avoided to use as electrolyte in fuel cells.

What role do the nafion resin and h3po4 play? could you use concentrated hcl or h2so4 instead?

Answer from: Quest

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

Answer from: Quest

the answer is 303.15 or 303

Another question on Chemistry

Chemistry, 22.06.2019 12:00

Which statement best explains the relationship between an area is geography and the temperature of its surface water

Answers: 1

Answer

Chemistry, 22.06.2019 12:00

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Answers: 1

Answer

Chemistry, 22.06.2019 14:00

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?

Answers: 3

Answer

Chemistry, 22.06.2019 14:30

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.