Why is platinum used in electrolysis?

Other metals are very reactive towards acid. Hence non-reactive or inert electrodes like platinum are used. Platinum is a noble metal and is used as an electrode in this electrolysis.

Why is platinum inert?

It is necessary to use an inert electrode, such as platinum, because there is no metal present to conduct the electrons from the anode to the cathode. Oxidation occurs at the anode and reduction at the cathode.

Why is platinum not used as electrode?

It has been demonstrated that Pt foil cannot act as a reference electrode in molten electrolytes, since it is neither stable nor depolarised (4). On the other hand, Pt wire immersed in molten NaCl/KCl can maintain a steady electrode potential for more than 12 hours, and shows electrochemical irreversibility.

Can platinum be used as a cathode?

Platinum electrodes are in certain ways the opposite of AgCl electrodes. Platinum is biocompatible and therefore highly suitable for invasive electrodes and implants. The electrode is prepared in an electrolyte containing (e.g., 3\% platinum chloride), with the platinum as the cathode.

Why is platinum used in half cells?

Platinum is used in electrochemical cells because it is resistant to oxidation- it will not easily react, which makes in excellent as an electrode as it will not take part in the Redox reactions occurring in electrochemical cells.

Why is platinum used in standard hydrogen electrode?

Platinum is an inert catalyst, because it does not engage in the reaction of the cells but provides an oxidation and reduction reaction surface or base. Platinum is used because hydrogen can quickly be adsorbed as well as inert metal does not participate in redox reaction during cell operation.

How does platinum react with other elements?

The metal is rapidly attacked by fused alkali oxides and by peroxides and will react with fluorine and, at red heat, with chlorine. On heating, platinum combines directly with elemental phosphorus, silicon, lead, arsenic, antimony, sulfur, and selenium, a fact that influences the use of platinum laboratory equipment.

Where are platinum electrodes used?

Platinum Electrode: How its chemical comp osition affects electrochemical reactions. Pt is a noble metal that is very stable and resistant to corrosion. Because of its stability, like Au, it is often used to make jewelry. As an electrode, it is used to oxidize organics or to generate hydrogen or reduce oxygen.

Why are graphite platinum electrodes used for this type of half cell?

The main reason that graphite electrodes are used in electrolysis is that graphite is an excellent conductor. These electrons act as a powerful conductor, enabling the electrolysis process to progress smoothly.

Does platinum react with other metals?

Platinum is a transition metal in Group 10 (VIIIB) of the periodic table. The platinum group metals are sometimes referred to as the noble metals. That term comes from the fact that they are all relatively inactive. They do not combine with or interact with most other elements or compounds.

Where is platinum used?

Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry.

Why is platinum used as an electrode in electrochemical cells?

Platinum is used in electrochemical cells because it is resistant to oxidation- it will not easily react, which makes in excellent as an electrode as it will not take part in the Redox reactions occurring in electrochemical cells.

Why can’t platinum be used as a catalyst?

Metals such as silver and copper have a high affinity for sulfur and form metal sulfides and sulfates. As this happens, there will be progressively less metal available to function as a catalyst. While platinum tends not to become totally or irreversibly poisoned, i.e It can be efficiently recycled.

What group does platinum belong to?

Platinum belongs to a group of metals in the periodic table called “noble metals”- which includes, among others: Gold, Silver, Iridium, and Platinum.

Which metals are the best catalysts?

Platinum and palladium are great catalysts. At the same time, other metals of the so-called platinum group metals are not. What are the atomic level reasons for this? Stack Exchange Network