Effect of a graphite pad on the adsorption and the electrocatalytic activity of microdeposits of rhodium

✍ Scribed by E. Horozova; Z. Jordanova; M. Velkov

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 648 KB
• Volume: 42
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/s0013-4686(96)00224-1

✦ Synopsis

The effect of a graphite pad on the adsorption and the electrocatalytic activity of rhodium microdeposits has been studied. The adsorptivity of the modified graphites was studied with regard to hydrogen and electrocatalysis towards cathodic hydrogen evolution. It has been established that depending on the graphite pad, rhodium electrodes show different adsorptivity and a different energy spectrum of hydrogen adsorption. The kind of the graphite carrier has some effect on the specific currents and the kinetic parameters of the cathodic liberation of hydrogen. The electron-microscope photos of rhodanized graphite electrodes indicate that the graphite pad role is reduced to the formation of rhodium depositions of different structure.