Platinum dissolution in nitrogen oxides-containing HClO4 solution studied by electrochemical quartz crystal microbalance

H. Kuroe; T. Morita; Y. Uchiyama; T. Abe; S. Imabayashi

doi:10.1149/05002.1607ecst

Platinum dissolution in nitrogen oxides-containing HClO₄ solution studied by electrochemical quartz crystal microbalance

H. Kuroe, T. Morita, Y. Uchiyama, T. Abe, S. Imabayashi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Platinum (Pt) dissolution has been elucidated by measuring a mass loss of Pt black-deposited Au quartz resonators in 0.1 mol dm^-3 HClO ₄ containing NaNO₂. A continuous weight loss of ca. 50 ng cm^-2 cycle^-1 was detected at [NaNO₂] = 0.01 mol dm^-3 under the potential cycling between 0.6 and 1.4 V vs. RHE. The magnitude of Pt dissolution depends on the concentration of NaNO₂ and the range of potential cycling. The average mass loss decreases to 5∼10 ng cm^-2 cycle^-1 at [NaNO₂] = 1 mmol dm ^-3. The Pt dissolution occurs when the higher potential limit is more than 1.0 V vs. RHE and the lower potential limit is less than 0.9 V vs. RHE, suggesting that the reduction of Pt oxide in the presence of NaNO₂ in the bulk solution contributes to the dissolution.

Original language	English
Title of host publication	Polymer Electrolyte Fuel Cells 12, PEFC 2012
Pages	1607-1612
Number of pages	6
Edition	2
DOIs	https://doi.org/10.1149/05002.1607ecst
Publication status	Published - 2012 Dec 1
Event	12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, United States Duration: 2012 Oct 7 → 2012 Oct 12

Publication series

Name	ECS Transactions
Number	2
Volume	50
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
Country/Territory	United States
City	Honolulu, HI
Period	12/10/7 → 12/10/12

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1149/05002.1607ecst

Cite this

Platinum dissolution in nitrogen oxides-containing HClO₄ solution studied by electrochemical quartz crystal microbalance. / Kuroe, H.; Morita, T.; Uchiyama, Y.; Abe, T.; Imabayashi, S.

Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2. ed. 2012. p. 1607-1612 (ECS Transactions; Vol. 50, No. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kuroe, H, Morita, T, Uchiyama, Y, Abe, T & Imabayashi, S 2012, Platinum dissolution in nitrogen oxides-containing HClO₄ solution studied by electrochemical quartz crystal microbalance. in Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2 edn, ECS Transactions, no. 2, vol. 50, pp. 1607-1612, 12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting, Honolulu, HI, United States, 12/10/7. https://doi.org/10.1149/05002.1607ecst

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abstract = "Platinum (Pt) dissolution has been elucidated by measuring a mass loss of Pt black-deposited Au quartz resonators in 0.1 mol dm-3 HClO 4 containing NaNO2. A continuous weight loss of ca. 50 ng cm-2 cycle-1 was detected at [NaNO2] = 0.01 mol dm-3 under the potential cycling between 0.6 and 1.4 V vs. RHE. The magnitude of Pt dissolution depends on the concentration of NaNO2 and the range of potential cycling. The average mass loss decreases to 5∼10 ng cm-2 cycle-1 at [NaNO2] = 1 mmol dm -3. The Pt dissolution occurs when the higher potential limit is more than 1.0 V vs. RHE and the lower potential limit is less than 0.9 V vs. RHE, suggesting that the reduction of Pt oxide in the presence of NaNO2 in the bulk solution contributes to the dissolution.",

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N2 - Platinum (Pt) dissolution has been elucidated by measuring a mass loss of Pt black-deposited Au quartz resonators in 0.1 mol dm-3 HClO 4 containing NaNO2. A continuous weight loss of ca. 50 ng cm-2 cycle-1 was detected at [NaNO2] = 0.01 mol dm-3 under the potential cycling between 0.6 and 1.4 V vs. RHE. The magnitude of Pt dissolution depends on the concentration of NaNO2 and the range of potential cycling. The average mass loss decreases to 5∼10 ng cm-2 cycle-1 at [NaNO2] = 1 mmol dm -3. The Pt dissolution occurs when the higher potential limit is more than 1.0 V vs. RHE and the lower potential limit is less than 0.9 V vs. RHE, suggesting that the reduction of Pt oxide in the presence of NaNO2 in the bulk solution contributes to the dissolution.

AB - Platinum (Pt) dissolution has been elucidated by measuring a mass loss of Pt black-deposited Au quartz resonators in 0.1 mol dm-3 HClO 4 containing NaNO2. A continuous weight loss of ca. 50 ng cm-2 cycle-1 was detected at [NaNO2] = 0.01 mol dm-3 under the potential cycling between 0.6 and 1.4 V vs. RHE. The magnitude of Pt dissolution depends on the concentration of NaNO2 and the range of potential cycling. The average mass loss decreases to 5∼10 ng cm-2 cycle-1 at [NaNO2] = 1 mmol dm -3. The Pt dissolution occurs when the higher potential limit is more than 1.0 V vs. RHE and the lower potential limit is less than 0.9 V vs. RHE, suggesting that the reduction of Pt oxide in the presence of NaNO2 in the bulk solution contributes to the dissolution.

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