ELECTROCATALYTIC ACTIVITY FOR O2 REDUCTION OF UNSUBSTITUTED AND PERCHLORINATED IRON PHTHALOCYANINES ADSORBED ON AMINO-TERMINATED MULTIWALLED CARBON NANOTUBES DEPOSITED ON GLASSY CARBON ELECTRODES

被引:4
作者
Canete, Paulina [1 ]
Francisco Silva, J. [1 ]
Zagal, Jose H. [1 ]
机构
[1] Univ Santiago Chile, Dept Quim Mat, Fac Quim & Biol, Santiago, Chile
关键词
Amino-terminated carbon nanotubes; Fe phthalocyanines; O2; reduction; catalytic activity; OXYGEN REDUCTION; CATALYSTS; OXIDATION; BEHAVIOR;
D O I
10.4067/S0717-97072014000200030
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Amino-functionalized multiwalled carbon nanotubes (MWCNT-NH2) were modified with Fe phthalocyanine (FePc) and perchlorinated Fe phthalocyanine (16(Cl) FePc) and deposited on glassy carbon electrodes (GCE). The electrocatalytic activity of these hybrid electrodes was examined for the reduction of molecular oxygen in alkaline media (0.2 M NaOH) using stationary and rotating disk electrodes. Electrodes containing 16(Cl) FePc are more active than those containing FePc. Electrodes containing CNTs are more active than electrodes without CNTs but the higher activity can be attributed to a greater real surface area, compared CGEs and not necessarily to a catalytic effect.
引用
收藏
页码:2529 / 2530
页数:2
相关论文
共 15 条
[1]   Tuning the redox properties of metalloporphyrin- and metallophthalocyanine-based molecular electrodes for the highest electrocatalytic activity in the oxidation of thiols [J].
Bedioui, Fethi ;
Griveau, Sophie ;
Nyokong, Tebello ;
Appleby, A. John ;
Caro, Claudia A. ;
Gulppi, Miguel ;
Ochoa, Gonzalo ;
Zagal, Jose H. .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (26) :3383-3396
[2]   Effect of different chemical modification of carbon nanotubes for the oxygen reduction reaction in alkaline media [J].
Dumitru, Anca ;
Mamlouk, M. ;
Scott, K. .
ELECTROCHIMICA ACTA, 2014, 135 :428-438
[3]   In Search of the Best Iron N4-Macrocyclic Catalysts Adsorbed on Graphite Electrodes and on Multi-walled Carbon Nanotubes for the Oxidation of L-Cysteine by Adjusting the Fe(II)/(I) Formal Potential of the Complex [J].
Gutierrez, Cristian A. ;
Francisco Silva, J. ;
Javier Recio, F. ;
Griveau, Sophie ;
Bedioui, Fethi ;
Caro, Claudia A. ;
Zagal, Jose H. .
ELECTROCATALYSIS, 2014, 5 (04) :426-437
[4]   Tuning the Fe(II)/(I) formal potential of the FeN4 catalysts adsorbed on graphite electrodes to the reversible potential of the reaction for maximum activity: Hydrazine oxidation [J].
Javier Recio, Francisco ;
Canete, Paulina ;
Tasca, Federico ;
Linares-Flores, Cristian ;
Heraclito Zagal, Jose .
ELECTROCHEMISTRY COMMUNICATIONS, 2013, 30 :34-37
[5]   Electrocatalytic behavior of substituted cobalt phthalocyanines towards the oxidation of cysteine [J].
Maree, S ;
Nyokong, T .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2000, 492 (02) :120-127
[6]   Systematic Selection of Metalloporphyrin-Based Catalysts for Oxygen Reduction by Modulation of the Donor-Acceptor Intermolecular Hardness [J].
Masa, Justus ;
Schuhmann, Wolfgang .
CHEMISTRY-A EUROPEAN JOURNAL, 2013, 19 (29) :9644-9654
[7]   Direct electrochemical determination of carbaryl using a multi-walled carbon nanotube/cobalt phthalocyanine modified electrode [J].
Moraes, Fernando C. ;
Mascaro, Lucia H. ;
Machado, Sergio A. S. ;
Brett, Christopher M. A. .
TALANTA, 2009, 79 (05) :1406-1411
[8]   Electrocatalytic behavior of glassy carbon electrodes modified with multiwalled carbon nanotubes and cobalt phthalocyanine for selective analysis of dopamine in presence of ascorbic acid [J].
Moraes, Fernando Cruz ;
Cabral, Murilo F. ;
Machado, Sergio A. S. ;
Mascaro, Lucia H. .
ELECTROANALYSIS, 2008, 20 (08) :851-857
[9]   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
[10]   Electrocatalytic reduction of oxygen at electropolymerized films of metalloporphyrins deposited onto multi-walled carbon nanotubes [J].
Okunola, Ayodele ;
Kowalewska, Barbara ;
Bron, Michael ;
Kulesza, Pawel J. ;
Schuhmann, Wolfgang .
ELECTROCHIMICA ACTA, 2009, 54 (07) :1954-1960