Electrochemical dissolution of noble metals native oxides

被引：50
作者：
Cherevko, Serhiy [1 ]
机构：
[1] Max Planck Inst Eisenforschung GmbH, Dept Interface Chem & Surface Engn, Max Planck Strasse 1, D-40237 Dusseldorf, Germany
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2017年 / 787卷
关键词：
Noble metals; Dissolution; Native oxides; FLOW DOUBLE ELECTRODE; PLATINUM DISSOLUTION; ACIDIC MEDIA; CELL; ADSORPTION; CORROSION; GOLD;
D O I：
10.1016/j.jelechem.2017.01.029
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In electrocatalysis, noble metals are used as supported nanoparticles. Concerns regarding their stability in an anodic acidic environment are well documented. In this work we show that also cathodic dissolution of the noble metal native oxides formed during relatively shorts exposures to air must be considered in the estimation of the overall catalyst degradation. It is found that cathodic dissolution decreases in the order of Ru > Rh > Ir > Pt. As Au does not oxidize in air, no cathodic Au dissolution is recorded. Physical properties of metals related to cathodic dissolution are shortly discussed. (C)2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：11 / 13
页数：3
相关论文
共 17 条
[1]   Oxygen and hydrogen evolution reactions on Ru, RuO2, Ir, and IrO2 thin film electrodes in acidic and alkaline electrolytes: A comparative study on activity and stability [J].
Cherevko, Serhiy ;
Geiger, Simon ;
Kasian, Olga ;
Kulyk, Nadiia ;
Grote, Jan-Philipp ;
Savan, Alan ;
Shrestha, Buddha Ratna ;
Merzlikin, Sergiy ;
Breitbach, Benjamin ;
Ludwig, Alfred ;
Mayrhofer, Karl J. J. .
CATALYSIS TODAY, 2016, 262 :170-180
[2]   A Comparative Study on Gold and Platinum Dissolution in Acidic and Alkaline Media [J].
Cherevko, Serhiy ;
Zeradjanin, Aleksandar R. ;
Keeley, Gareth P. ;
Mayrhofer, Karl J. J. .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2014, 161 (12) :H822-H830
[3]   Dissolution of Noble Metals during Oxygen Evolution in Acidic Media [J].
Cherevko, Serhiy ;
Zeradjanin, Aleksandar R. ;
Topalov, Angel A. ;
Kulyk, Nadiia ;
Katsounaros, Ioannis ;
Mayrhofer, Karl J. J. .
CHEMCATCHEM, 2014, 6 (08) :2219-2223
[4]   New Insights into Corrosion of Ruthenium and Ruthenium Oxide Nanoparticles in Acidic Media [J].
Hodnik, Nejc ;
Jovanovic, Primoz ;
Pavlisic, Andraz ;
Jozinovic, Barbara ;
Zorko, Milena ;
Bele, Marian ;
Selih, Vid Simon ;
Sala, Martin ;
Hocevar, Samo ;
Gaberscek, Miran .
JOURNAL OF PHYSICAL CHEMISTRY C, 2015, 119 (18) :10140-10147
[5]   Electrochemical nanogravimetric studies of adsorption, deposition, and dissolution processes occurring at platinum electrodes in acid media [J].
Inzelt, Gyoergy ;
Berkes, Balazs B. ;
Kriston, Akos .
PURE AND APPLIED CHEMISTRY, 2011, 83 (02) :269-279
[6]   Temperature dependence of two types of dissolution of platinum in acid media. An electrochemical nanogravimetric study [J].
Inzelt, Gyoergy ;
Berkes, Balazs ;
Kriston, Akos .
ELECTROCHIMICA ACTA, 2010, 55 (16) :4742-4749
[7]   New Insight into Platinum Dissolution from Nanoparticulate Platinum-Based Electrocatalysts Using Highly Sensitive In Situ Concentration Measurements [J].
Jovanovic, Primoz ;
Pavlisic, Andraz ;
Selih, Vid Simon ;
Sala, Martin ;
Hodnik, Nejc ;
Bele, Marjan ;
Hocevar, Samo ;
Gaberscek, Miran .
CHEMCATCHEM, 2014, 6 (02) :449-453
[8]   Coupling of a high throughput microelectrochemical cell with online multielemental trace analysis by ICP-MS [J].
Klemm, Sebastian O. ;
Topalov, Angel A. ;
Laska, Claudius A. ;
Mayrhofer, Karl J. J. .
ELECTROCHEMISTRY COMMUNICATIONS, 2011, 13 (12) :1533-1535
[9]   ON SOME FUNDAMENTAL FACTORS IN THE EFFECT OF ALLOYING ELEMENTS ON PASSIVATION OF ALLOYS [J].
MARCUS, P .
CORROSION SCIENCE, 1994, 36 (12) :2155-2158
[10]   Origin of the overpotential for oxygen reduction at a fuel-cell cathode [J].
Norskov, JK ;
Rossmeisl, J ;
Logadottir, A ;
Lindqvist, L ;
Kitchin, JR ;
Bligaard, T ;
Jónsson, H .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (46) :17886-17892
12