The Rest Potentials of Platinum, Rhodium and Iridium Electrodes

M. KABASAKALOĞLU

doi:https://doi.org/10.1501/Commub_0000000290

Makale detayları

The Rest Potentials of Platinum, Rhodium and Iridium Electrodes

Yazarlar:

M. KABASAKALOĞLU

Yayıncı:

Ankara University

Ana Başlıklar:

Kimya mühendisliği

Dergi:

Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 1967 Vol.14, pp.0-0

Belge Tipi:

Makale

Yayın Tarihi:

12/1966

Belge Dili:

İngilizce

Document ID (Org No.):

2000710942

Sıklık:

İki Yıllık

eISSN:

2687-4806

pISSN:

1303-6017

DOI:

https://doi.org/10.1501/Commub_0000000290

Özet:

 

The reduced and oxidized platinum, rhodium and iridium electrodes were alterna- tely dipped, as, cathode into the Solutions of 1 N H2SO4, 1 N HNO3, 1 N H2SO4 + 1/8 M K2Cr2O7, 1 N HNO3 +1 /8 M K2Cr2O7, 1 /4 M CrO3, 1 N H2SO4 + 10”2 M Ce (IV) SO4, İN NaOII, 1 N NaOH + 1 /8 M K2 Cr2 O7. The potentials with respect to time were mea- sured against a calomel electrode, (rest potentials). The electrodes were pretreated in two separate ways.
The electrode, as anode, was dipped into a 1 N solution of H2SO4. A current of 200 mA was passed for a period of five minutes.Then the oxidized electrode was again dipped into a saıne type solution with continuous flow of nitrogen while being connected to a calomel electrode in short circuit (reduced electrode).
The electrodes prepared according to the above procedure were again oxidized, anodically, for fifteen minutes under a current of 200 mA (oxidized electrodes).
Using the same electrolyte, the rest potentials for platinum, rhodium and iridium were found to have different values. The rest potentials for -these metals in the Solutions mentioned above were very close to the cquilibrium potentials of the same metals in the oxidized state this indicates. That they were being oxidized in these Solutions.The time required for such metals to reach equilibrium was shortest for iridium next for rhodium and platinum.

Makale detayları

The Rest Potentials of Platinum, Rhodium and Iridium Electrodes

Yazarlar: M. KABASAKALOĞLU

Yayıncı: Ankara University

Ana Başlıklar: Kimya mühendisliği

Dergi: Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 1967 Vol.14, pp.0-0

Belge Tipi: Makale

Yayın Tarihi: 12/1966

Belge Dili: İngilizce

Document ID (Org No.): 2000710942

Sıklık: İki Yıllık

eISSN: 2687-4806

pISSN: 1303-6017

DOI: https://doi.org/10.1501/Commub_0000000290

Sayı

Yazarlar:

M. KABASAKALOĞLU

Yayıncı:

Ankara University

Ana Başlıklar:

Kimya mühendisliği

Dergi:

Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 1967 Vol.14, pp.0-0

Belge Tipi:

Makale

Yayın Tarihi:

12/1966

Belge Dili:

İngilizce

Document ID (Org No.):

2000710942

Sıklık:

İki Yıllık

eISSN:

2687-4806

pISSN:

1303-6017

DOI:

https://doi.org/10.1501/Commub_0000000290