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why platinum is used in some half cells and not in others?
Platinum is utilized in specific half cells due to its exceptional chemical stability and resistance to corrosion, making it ideal for electrochemical applications. In particular, platinum's inertness allows it to function effectively in environments where other metals would degrade. The discussion highlights that while platinum is expensive, its unique properties justify its use in critical applications such as fuel cells and electrolysis. Understanding the balance between cost and performance is essential for selecting materials in electrochemical systems.
PREREQUISITESChemists, materials scientists, and engineers involved in electrochemical research and development, particularly those focused on fuel cells and corrosion resistance.