Optical High-Throughput Screening for Activity and Electrochemical Stability of Oxygen Reducing Electrode Catalysts for Fuel Cell Applications

被引：12

作者：

Dogan, C. ^{[1
]}

Stoewe, K. ^{[1
]}

Maier, W. F. ^{[1
]}

机构：

[1] Univ Saarland, Lehrstuhl Tech Chem, D-66123 Saarbrucken, Germany

来源：

ACS COMBINATORIAL SCIENCE | 2015年 / 17卷 / 03期

关键词：

optical higl-throughput-screetting; ORR catalysts; fluorescent indicators; electrodiemical stability; REDUCTION REACTION; ELECTROCATALYSTS; FLUORESCEIN; UMBELLIFERONE; DISCOVERY; GRAPHENE; SURFACE; CARBON; ANODE;

D O I：

10.1021/co500128m

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A fluorescence-based electro-optical high-throughput method and setup for testing the oxygen reduction reaction (ORR) activity and electrochemical stability of 60 materials in parallel is described. We present thus a quantitative method for activity measurements for ORR-catalysts by optical fluorescence data acquisition. The fluorescence behavior of fluorescein, phloxine B, and umbelliferone as indicators is presented. The effect of oxygen concentration, saturation, and supply on electrochemical response is presented. Corrections for internal resistance differences and intensity differences are described. The final method allowed position independent determination of activities on the working-electrode library, containing up to 60 different electrocatalysts. A total of 378 selected mixed oxides have been studied. Cu/Ni/Mn and Co/Ni/Mn oxides proved electrochemically most active and comparable to a Pt-containing reference catalyst.

引用

页码：164 / 175

页数：12

共 42 条

[1] Configuration and site of O2 adsorption on the Pt(111) electrode surface [J].

Adzic, RR ;

Wang, JX .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (45) :8988-8993

[2] Fluorescein excited-state proton exchange reactions: Nanosecond emission kinetics and correlation with steady-state fluorescence intensity [J].

Alvarez-Pez, JM ;

Ballesteros, L ;

Talavera, E ;

Yguerabide, J .

JOURNAL OF PHYSICAL CHEMISTRY A, 2001, 105 (26) :6320-6332

[3] Oxygen Reduction Properties of Bifunctional α-Manganese Oxide Electrocatalysts in Aqueous and Organic Electrolytes [J].

Benbow, E. M. ;

Kelly, S. P. ;

Zhao, L. ;

Reutenauer, J. W. ;

Suib, S. L. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (44) :22009-22017

[4] Application of multiple linear regression and extended principal-component analysis to determination of the acid dissociation constant of 7-hydroxycoumarin in water/AOT/isooctane reverse micelles [J].

Caselli, M ;

Daniele, V ;

Mangone, A ;

Paolillo, P .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2000, 221 (02) :173-180

[5] Comparison of high-throughput electrochemical methods for testing direct methanol fuel cell anode electrocatalysts [J].

Chan, BC ;

Liu, RX ;

Jambunathan, K ;

Zhang, H ;

Chen, GY ;

Mallouk, TE ;

Smotkin, ES .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (03) :A594-A600

[6] Combinatorial discovery of bifunctional oxygen reduction - water oxidation electrocatalysts for regenerative fuel cells [J].

Chen, GY ;

Delafuente, DA ;

Sarangapani, S ;

Mallouk, TE .

CATALYSIS TODAY, 2001, 67 (04) :341-355

[7] Spectroscopy and photophysics of 4-and 7-hydroxycoumarins and their thione analogs [J].

de Melo, JS ;

Fernandes, PF .

JOURNAL OF MOLECULAR STRUCTURE, 2001, 565 :69-78

[8] Selectivity of Palladium-Cobalt Surface Alloy toward Oxygen Reduction Reaction [J].

Do Ngoc Son ;

Takahashi, Kaito .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (10) :6200-6207

[9] PH EFFECTS ON FLUORESCENCE OF UMBELLIFERONE [J].

FINK, DW ;

KOEHLER, WR .

ANALYTICAL CHEMISTRY, 1970, 42 (09) :990-&

[10] Determination of carbazochrome by fluorescence quenching method [J].

Gan, Xiaojuan ;

Liu, Shaopu ;

Liu, Zhongfang ;

Hu, Xiaoli ;

Cui, Zhiping ;

Wang, Yaqiong .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2012, 97 :161-166

← 1 2 3 4 5 →